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 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
46 accept() on UDP connections
48 2011-08-24: Simon Goldschmidt
49 * sockets.h: fixed bug #34057 socklen_t should be a typedef
51 2011-08-24: Simon Goldschmidt
52 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
54 2011-08-24: Simon Goldschmidt
55 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
57 2011-08-24: Simon Goldschmidt
58 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
60 2011-08-22: Simon Goldschmidt
61 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
62 merely prevents nagle from not transmitting fast after closing.)
64 2011-07-22: Simon Goldschmidt
65 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
66 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
67 lwip_send() sends as much as possible for non-blocking sockets
69 2011-07-22: Simon Goldschmidt
70 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
71 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
72 at regular intervals from main level.
74 2011-07-21: Simon Goldschmidt
75 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
76 sending an ARP request when an ARP entry is used in the last minute before
79 2011-07-04: Simon Goldschmidt
80 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
82 2011-06-26: Simon Goldschmidt
83 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
84 updating its documentation only.
86 2011-06-26: Simon Goldschmidt
87 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
90 2011-06-26: Simon Goldschmidt
91 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
99 2011-03-27: Simon Goldschmidt
100 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
101 calculate it in tcp_zero_window_probe (the only place where it was used).
103 2010-11-21: Simon Goldschmidt
104 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
107 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
108 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
109 IP_MULTICAST_LOOP at socket- and raw-API level.
111 2010-06-16: Simon Goldschmidt
112 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
113 link-layer-addressed UDP traffic to be received while a netif is down (just
114 like DHCP during configuration)
116 2010-05-22: Simon Goldschmidt
117 * many many files: bug #27352: removed packing from ip_addr_t, the packed
118 version is now only used in protocol headers. Added global storage for
119 current src/dest IP address while in input functions.
121 2010-05-16: Simon Goldschmidt
122 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
123 calculation (and use them throughout the stack where applicable)
125 2010-05-16: Simon Goldschmidt
126 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
127 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
129 2010-05-16: Simon Goldschmidt
130 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
131 MEMP pool instead of the heap
133 2010-05-13: Simon Goldschmidt
134 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
135 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
136 packets to more than one pcb.
138 2010-05-02: Simon Goldschmidt
139 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
140 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
142 2010-04-30: Simon Goldschmidt
143 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
144 take a precalculated checksum, added pbuf_fill_chksum() to copy data
145 into a pbuf and at the same time calculating the checksum for that data
147 2010-04-29: Simon Goldschmidt
148 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
149 2-byte-aligned IP addresses and MAC addresses
151 2010-04-28: Patch by Bill Auerbach
152 * ip.c: Inline generating IP checksum to save a function call
154 2010-04-14: Simon Goldschmidt
155 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
156 tcpip_thread processes messages or timeouts to implement a watchdog.
158 2010-03-28: Simon Goldschmidt
159 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
160 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
162 2010-03-27: Simon Goldschmidt
163 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
164 etharp_query to prevent unnecessary function calls (inspired by
167 2010-03-20: Simon Goldschmidt
168 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
169 since the linker cannot do this automatically to save space.
171 2010-03-20: Simon Goldschmidt
172 * opt.h, etharp.c/.h: Added support for static ARP table entries
174 2010-03-14: Simon Goldschmidt
175 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
176 when creating TCP segments, not when (re-)transmitting them.
178 2010-03-07: Simon Goldschmidt
179 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
180 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
181 This should speed up receiving data on sockets as the select code in
182 event_callback is only executed when select is waiting.
184 2010-03-06: Simon Goldschmidt
185 * tcp_out.c: task #7013 (Create option to have all packets delivered to
186 netif->output in one piece): Always copy to try to create single pbufs
189 2010-03-06: Simon Goldschmidt
190 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
191 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
192 for tcp netconns to receive pbufs, not netbufs; use that function
195 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
196 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
197 Work on tcp_enqueue: Don't waste memory when chaining segments,
198 added option TCP_OVERSIZE to prevent creating many small pbufs when
199 calling tcp_write with many small blocks of data. Instead, pbufs are
200 allocated larger than needed and the space is used for later calls to
203 2010-02-21: Simon Goldschmidt
204 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
207 2010-02-21: Simon Goldschmidt
208 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
209 implementation of tcp to make API usage cleare to application programmers
211 2010-02-14: Simon Goldschmidt/Stephane Lesage
212 * ip_addr.h: Improved some defines working on ip addresses, added faster
213 macro to copy addresses that cannot be NULL
215 2010-02-13: Simon Goldschmidt
216 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
217 blocking send operation)
219 2010-02-12: Simon Goldschmidt
220 * sockets.c/.h: Added a minimal version of posix fctl() to have a
221 standardised way to set O_NONBLOCK for nonblocking sockets.
223 2010-02-12: Simon Goldschmidt
224 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
225 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
226 and dhcp work with user-allocated structs instead of callin mem_malloc
228 2010-02-12: Simon Goldschmidt/Jeff Barber
229 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
230 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
232 2010-02-12: Simon Goldschmidt
233 * sys layer: task #10139 (Prefer statically allocated memory): converted
234 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
235 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
236 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
237 to let sys.h use binary semaphores instead of mutexes - as before)
239 2010-02-09: Simon Goldschmidt (Simon Kallweit)
240 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
241 (Restart system timeout handling)
243 2010-02-09: Simon Goldschmidt
244 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
245 netif.c) - loopif does not have to be created by the port any more,
246 just define LWIP_HAVE_LOOPIF to 1.
248 2010-02-08: Simon Goldschmidt
249 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
250 inet_ntoa_r/ipaddr_ntoa_r
252 2010-02-08: Simon Goldschmidt
253 * netif.h: Added netif_s/get_igmp_mac_filter() macros
255 2010-02-05: Simon Goldschmidt
256 * netif.h: Added function-like macros to get/set the hostname on a netif
258 2010-02-04: Simon Goldschmidt
259 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
260 make changing the actual implementation behind the typedef easier.
262 2010-02-01: Simon Goldschmidt
263 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
264 for allocating memory when getaddrinfo() is called.
266 2010-01-31: Simon Goldschmidt
267 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
268 them once instead of parsing for every option. This also removes
269 the need for mem_malloc from dhcp_recv and makes it possible to
270 correctly retrieve the BOOTP file.
272 2010-01-30: simon Goldschmidt
273 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
276 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
277 * api.h, api_msg.c, sockets.c: Added except set support in select
280 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
281 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
282 Add non-blocking support for connect (partly from patch #6860),
283 plus many cleanups in socket & netconn API.
285 2010-01-27: Simon Goldschmidt
286 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
287 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
289 2010-01-26: Simon Goldschmidt
290 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
292 2010-01-14: Simon Goldschmidt
293 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
294 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
296 2010-01-13: Simon Goldschmidt
297 * mem.c: The heap now may be moved to user-defined memory by defining
298 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
299 (patch #6966 and bug #26133)
301 2010-01-10: Simon Goldschmidt (Bill Auerbach)
302 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
305 2010-01-10: Simon Goldschmidt
306 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
307 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
309 2009-12-31: Simon Goldschmidt
310 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
311 added timers.c/.h: Separated timer implementation from semaphore/mbox
312 implementation, moved timer implementation to timers.c/.h, timers are
313 now only called from tcpip_thread or by explicitly checking them.
316 2009-12-27: Simon Goldschmidt
317 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
318 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
323 2011-04-20: Simon Goldschmidt
324 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
326 2011-04-13: Simon Goldschmidt
327 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
328 using ports in the IANA private/dynamic range (49152 through 65535).
330 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
331 * etharp.h/.c: Fixed broken VLAN support.
333 2011-03-27: Simon Goldschmidt
334 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
335 pcbs) by checking if the pcb was bound (local_port != 0).
337 2011-03-27: Simon Goldschmidt
338 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
340 2011-03-27: Simon Goldschmidt
341 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
342 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
344 2011-03-27: Simon Goldschmidt
345 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
346 is present never times out) by starting retransmission timer before checking
349 2011-03-22: Simon Goldschmidt
350 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
351 calling sio_read_abort() if the file descriptor is valid.
353 2011-03-14: Simon Goldschmidt
354 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
355 more than once can render a socket useless) since it mainly involves changing
356 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
358 2011-03-13: Simon Goldschmidt
359 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
360 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
361 use EALRADY instead of -1
363 2011-03-13: Simon Goldschmidt
364 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
365 connection has been aborted by err_tcp (since this is not a normal closing
368 2011-03-13: Simon Goldschmidt
369 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
370 with pcb->state != CLOSED
372 2011-02-17: Simon Goldschmidt
373 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
376 2011-02-17: Simon Goldschmidt
377 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
379 2011-01-24: Simon Goldschmidt
380 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
382 2010-12-02: Simon Goldschmidt
383 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
385 2010-11-23: Simon Goldschmidt
386 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
387 LWIP_SO_RCVBUF and ioctl/FIONREAD.
389 2010-11-23: Simon Goldschmidt
390 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
391 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
393 2010-11-23: Simon Goldschmidt
394 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
395 refusing 'refused_data' again.
397 2010-11-22: Simon Goldschmidt
398 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
399 after a successful nonblocking connection.
401 2010-11-22: Simon Goldschmidt
402 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
403 must be sent link-local
405 2010-11-22: Simon Goldschmidt
406 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
409 2010-11-20: Simon Goldschmidt
410 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
412 2010-11-20: Simon Goldschmidt
413 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
414 resemble other stacks.
416 2010-11-20: Simon Goldschmidt
417 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
418 no-copy TCP writes will never succeed.
420 2010-11-20: Simon Goldschmidt
421 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
422 not match documentation: return ERR_ARG instead of ERR_VAL if not
423 initialized or wrong argument.
425 2010-10-20: Simon Goldschmidt
426 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
428 2010-10-05: Simon Goldschmidt
429 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
430 replugging the network cable after an AutoIP address was assigned.
432 2010-08-10: Simon Goldschmidt
433 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
435 2010-08-03: Simon Goldschmidt
436 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
438 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
439 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
440 endian architectures)
442 2010-07-28: Simon Goldschmidt
443 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
446 2010-07-27: Simon Goldschmidt
447 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
448 harm but never did anything
450 2010-07-21: Simon Goldschmidt
451 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
454 2010-07-16: Kieran Mansley
455 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
457 2010-07-10: Simon Goldschmidt
458 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
460 2010-06-30: Simon Goldschmidt
461 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
464 2010-06-28: Kieran Mansley
465 * timers.c remove unportable printing of C function pointers
467 2010-06-24: Simon Goldschmidt
468 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
469 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
471 2010-06-24: Simon Goldschmidt
472 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
473 implemented shutdown at socket level.
475 2010-06-21: Simon Goldschmidt
476 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
477 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
478 custom pbufs that reference other (original) pbufs. Additionally set
479 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
481 2010-06-15: Simon Goldschmidt
482 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
484 2010-06-14: Simon Goldschmidt
485 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
487 2010-06-12: Simon Goldschmidt
488 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
491 2010-05-17: Simon Goldschmidt
492 * netdb.c: Correctly NULL-terminate h_addr_list
494 2010-05-16: Simon Goldschmidt
495 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
496 "symbol already defined" i.e. when linking to winsock
498 2010-05-05: Simon Goldschmidt
499 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
502 2010-04-21: Simon Goldschmidt
503 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
506 2010-03-28: Luca Ceresoli
507 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
509 2010-03-27: Luca Ceresoli
510 * mib2.c: patch #7130: remove meaningless const qualifiers
512 2010-03-26: Simon Goldschmidt
513 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
515 2010-03-26: Simon Goldschmidt
516 * various files: Fixed compiling with different options disabled (TCP/UDP),
517 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
519 2010-03-25: Simon Goldschmidt
520 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
522 2010-03-25: Simon Goldschmidt
523 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
524 overrunning our rcv_wnd in ooseq case.
526 2010-03-22: Simon Goldschmidt
527 * tcp.c: tcp_listen() did not copy the pcb's prio.
529 2010-03-19: Simon Goldschmidt
530 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
532 2010-03-14: Simon Goldschmidt
533 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
534 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
535 and basing PBUF_LINK_HLEN on it.
537 2010-03-08: Simon Goldschmidt
538 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
539 when assiging routable address): when checking incoming packets and
540 aborting existing connection on address change, filter out link-local
543 2010-03-06: Simon Goldschmidt
544 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
546 2010-03-06: Simon Goldschmidt
547 * ipv4/ip.c: Don't try to forward link-local addresses
549 2010-03-06: Simon Goldschmidt
550 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
553 2010-03-05: Simon Goldschmidt
554 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
557 2010-03-05: Simon Goldschmidt
558 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
559 into multiple calls to tcp_write.
561 2010-02-21: Simon Goldschmidt
562 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
563 the implementation of DNS_USES_STATIC_BUF==1)
565 2010-02-20: Simon Goldschmidt
566 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
567 close() vs. shutdown(). Now the application does not get any more
568 recv callbacks after calling tcp_close(). Added tcp_shutdown().
570 2010-02-19: Simon Goldschmidt
571 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
572 confusion with realloc()
574 2010-02-15: Simon Goldschmidt/Stephane Lesage
575 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
578 2010-02-14: Simon Goldschmidt
579 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
580 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
581 admin-status of a netif are up
583 2010-02-14: Simon Goldschmidt
584 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
585 reception and is not really necessary
587 2010-02-14: Simon Goldschmidt
588 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
589 request was directed as us (RFC 826, Packet Reception), otherwise
590 only update existing entries; internalized some functions
592 2010-02-14: Simon Goldschmidt
593 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
594 disabled on netif used for PPPoE) by adding a new netif flag
595 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
596 device but prevents usage of ARP (so that ethernet_input can be used
599 2010-02-12: Simon Goldschmidt
600 * netif.c: netif_set_link_up/down: only do something if the link state
603 2010-02-12: Simon Goldschmidt/Stephane Lesage
604 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
607 2010-02-12: Simon Goldschmidt
608 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
610 2010-02-09: Simon Goldschmidt
611 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
612 (recv() makes receive window update for data that wasn't received by
615 2010-02-09: Simon Goldschmidt/Stephane Lesage
616 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
617 or any netconn_recv() error)
619 2010-02-09: Simon Goldschmidt
620 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
622 2010-02-09: Simon Goldschmidt
623 * netif.c: For loopback packets, adjust the stats- and snmp-counters
624 for the loopback netif.
626 2010-02-08: Simon Goldschmidt
627 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
628 since they are not used anywhere else.
630 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
631 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
632 (patch from bug #28798)
634 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
635 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
636 another bug when LWIP_RAND() returns zero.
638 2010-02-04: Simon Goldschmidt
639 * nearly every file: Use macros defined in ip_addr.h (some of them new)
640 to work with IP addresses (preparation for bug #27352 - Change ip_addr
641 from struct to typedef (u32_t) - and better code).
643 2010-01-31: Simon Goldschmidt
644 * netif.c: Don't call the link-callback from netif_set_up/down() since
645 this invalidly retriggers DHCP.
647 2010-01-29: Simon Goldschmidt
648 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
649 portability file inet.h and its contents from the stack: moved htonX-
650 functions to def.h (and the new def.c - they are not ipv4 dependent),
651 let inet.h depend on ip_addr.h and not the other way round.
652 This fixes bug #28732.
654 2010-01-28: Kieran Mansley
655 * tcp.c: Ensure ssthresh >= 2*MSS
657 2010-01-27: Simon Goldschmidt
658 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
659 callback can lead to accessing unallocated memory. As a consequence,
660 ERR_ABRT means the application has called tcp_abort()!
662 2010-01-25: Simon Goldschmidt
663 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
664 not implemented in SNMP): write-only or not-accessible are still
665 returned by getnext (though not by get)
667 2010-01-24: Simon Goldschmidt
668 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
669 not use reserved C/C++ keywords
671 2010-01-23: Simon Goldschmidt
672 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
675 2010-01-21: Simon Goldschmidt
676 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
677 if tcp_enqueue fails) both in raw- and netconn-API
679 2010-01-19: Simon Goldschmidt
680 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
682 2010-01-18: Iordan Neshev/Simon Goldschmidt
683 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
684 bugfix backports from 2.4.x.
686 2010-01-18: Simon Goldschmidt
687 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
689 2010-01-17: Simon Goldschmidt
690 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
691 task #10102: "netconn: clean up conn->err threading issues" by adding
692 error return value to struct api_msg_msg
694 2010-01-17: Simon Goldschmidt
695 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
696 to return err_t (bugs #27709 and #28087)
698 2010-01-14: Simon Goldschmidt
699 * ...: Use typedef for function prototypes throughout the stack.
701 2010-01-13: Simon Goldschmidt
702 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
703 window = 0) by correctly draining recvmbox/acceptmbox
705 2010-01-11: Simon Goldschmidt
706 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
707 erroneous callbacks) by copying the code from recent pppd
709 2010-01-10: Simon Goldschmidt
710 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
712 2010-01-10: Simon Goldschmidt
713 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
715 2010-01-08: Simon Goldschmidt
716 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
718 2010-01-08: Simon Goldschmidt
719 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
720 passed to dns_local_addhost() might be volatile
722 2010-01-07: Simon Goldschmidt
723 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
725 2010-01-06: Simon Goldschmidt
726 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
728 2009-12-31: Simon Goldschmidt
729 * many ppp files: Reorganised PPP source code from ucip structure to pppd
730 structure to easily compare our code against the pppd code (around v2.3.1)
732 2009-12-27: Simon Goldschmidt
733 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
741 2009-10-27 Simon Goldschmidt/Stephan Lesage
742 * netifapi.c/.h: Added netifapi_netif_set_addr()
744 2009-10-07 Simon Goldschmidt/Fabian Koch
745 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
746 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
748 2009-08-26 Simon Goldschmidt/Simon Kallweit
749 * slipif.c/.h: bug #26397: SLIP polling support
751 2009-08-25 Simon Goldschmidt
752 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
753 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
755 2009-08-25 Simon Goldschmidt
756 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
758 2009-08-24 Jakob Stoklund Olesen
759 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
760 to netif_set_link_up().
762 2009-08-23 Simon Goldschmidt
763 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
764 to a human-readable string.
768 2009-12-24: Kieran Mansley
769 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
772 2009-12-06: Simon Goldschmidt
773 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
774 be statically allocated (like in ucip)
776 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
777 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
779 2009-12-03: Simon Goldschmidt
780 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
781 could have non-zero length
783 2009-12-02: Simon Goldschmidt
784 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
785 tcp_input_pcb until after calling the pcb's callbacks
787 2009-11-29: Simon Goldschmidt
788 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
789 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
791 2009-11-29: Simon Goldschmidt
792 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
793 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
795 2009-11-26: Simon Goldschmidt
796 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
799 2009-11-26: Simon Goldschmidt
800 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
801 algorithm at PCB level
803 2009-11-22: Simon Goldschmidt
804 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
806 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
807 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
808 reusing time-wait pcb
810 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
811 * sockets.c: Fixed bug #28062: Data received directly after accepting
812 does not wake up select
814 2009-11-11: Simon Goldschmidt
815 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
817 2009-10-30: Simon Goldschmidt
818 * opt.h: Increased default value for TCP_MSS to 536, updated default
819 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
821 2009-10-28: Kieran Mansley
822 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
823 to follow algorithm from TCP/IP Illustrated
825 2009-10-27: Kieran Mansley
826 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
828 2009-10-25: Simon Goldschmidt
829 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
830 pcb->recv is NULL to keep rcv_wnd correct)
832 2009-10-25: Simon Goldschmidt
833 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
835 2009-10-23: Simon Goldschmidt (David Empson)
836 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
838 2009-10-21: Simon Goldschmidt
839 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
840 trailing 1 byte len (SYN/FIN)
842 2009-10-21: Simon Goldschmidt
843 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
845 2009-10-19: Simon Goldschmidt
846 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
847 conditional code to assert where applicable), check pbuf length before
848 testing for valid reply
850 2009-10-19: Simon Goldschmidt
851 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
852 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
854 2009-10-16: Simon Goldschmidt
855 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
856 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
859 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
860 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
862 2009-10-15: Simon Goldschmidt
863 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
866 2009-10-15: Simon Goldschmidt
867 * autoip.c: Fixed bug #27704: autoip starts with wrong address
868 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
869 of network byte order
871 2009-10-11 Simon Goldschmidt (Jörg Kesten)
872 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
873 which are not consecutive when retransmitting unacked segments
875 2009-10-09 Simon Goldschmidt
876 * opt.h: Fixed default values of some stats to only be enabled if used
877 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
879 2009-08-30 Simon Goldschmidt
880 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
881 function" by checking for loopback before calling ip_frag
883 2009-08-25 Simon Goldschmidt
884 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
886 2009-08-23 Simon Goldschmidt
887 * ppp.c: bug #27078: Possible memory leak in pppInit()
889 2009-08-23 Simon Goldschmidt
890 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
893 2009-08-23 Simon Goldschmidt
894 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
895 Fixed wrong parenthesis, added check in init.c
897 2009-08-23 Simon Goldschmidt
898 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
900 2009-08-23 Simon Goldschmidt
901 * many ppp files: bug #27267: Added include to string.h where needed
903 2009-08-23 Simon Goldschmidt
904 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
911 2009-05-10 Simon Goldschmidt
912 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
913 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
914 one pbuf to help MACs that don't support scatter-gather DMA.
916 2009-05-09 Simon Goldschmidt
917 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
918 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
920 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
921 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
922 extended info about the currently received packet.
924 2009-04-27 Simon Goldschmidt
925 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
927 2009-04-25 Simon Goldschmidt
928 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
929 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
931 2009-04-21 Simon Goldschmidt
932 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
933 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
934 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
935 as an external function for lookup.
937 2009-04-15 Simon Goldschmidt
938 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
940 2009-03-31 Kieran Mansley
941 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
942 TCP timestamp options, off by default. Rework tcp_enqueue() to
943 take option flags rather than specified option data
945 2009-02-18 Simon Goldschmidt
946 * cc.h: Added printf formatter for size_t: SZT_F
948 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
949 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
952 2009-02-12 Simon Goldschmidt
953 * init.h: Added LWIP_VERSION to get the current version of the stack
955 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
956 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
957 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
960 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
961 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
962 is only used by UDPLITE at present, so conditionalise it.
964 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
965 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
966 "seed" address. This should reduce AUTOIP conflicts if
967 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
969 2008-10-02 Jonathan Larmour and Rishi Khan
970 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
973 2008-06-30 Simon Goldschmidt
974 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
975 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
976 mem_free to run between mem_malloc iterations. Added illegal counter for
979 2008-06-27 Simon Goldschmidt
980 * stats.h/.c, some other files: patch #6483: stats module improvement:
981 Added defines to display each module's statistic individually, added stats
982 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
984 2008-06-17 Simon Goldschmidt
985 * err.h: patch #6459: Made err_t overridable to use a more efficient type
986 (define LWIP_ERR_T in cc.h)
988 2008-06-17 Simon Goldschmidt
989 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
992 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
993 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
994 modified version of patch # 6370: Moved loopif code to netif.c so that
995 loopback traffic is supported on all netifs (all local IPs).
996 Added option to limit loopback packets for each netifs.
1000 2009-08-12 Kieran Mansley
1001 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1002 out of window or out of order properly
1004 2009-08-12 Kieran Mansley
1005 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1007 2009-07-28 Simon Goldschmidt
1008 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1010 2009-07-27 Kieran Mansley
1011 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1013 2009-07-09 Kieran Mansley
1014 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1015 recv_avail and don't increment counters until message successfully
1018 2009-06-25 Kieran Mansley
1019 * api_msg.c api.h: BUG26722: initialise netconn write variables
1022 2009-06-25 Kieran Mansley
1023 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1025 2009-06-25 Kieran Mansley
1026 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1027 simultaneous close behaviour, and make snd_nxt have the same meaning
1030 2009-05-12 Simon Goldschmidt
1031 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1032 arp_table / uses etharp_query" by adding etharp_gratuitous()
1034 2009-05-12 Simon Goldschmidt
1035 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1036 to the IP header (used by igmp_ip_output_if)
1038 2009-05-06 Simon Goldschmidt
1039 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1040 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1042 2009-05-05 Simon Goldschmidt
1043 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1046 2009-05-04 Simon Goldschmidt
1047 * init.c: snmp was not initialized in lwip_init()
1049 2009-05-04 Frédéric Bernon
1050 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1052 2009-05-03 Simon Goldschmidt
1053 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1054 (and unsent->next == NULL)
1056 2009-05-02 Simon Goldschmidt
1057 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1058 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1060 2009-05-02 Simon Goldschmidt
1061 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1063 2009-05-01 Simon Goldschmidt
1064 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1066 2009-05-01 Simon Goldschmidt
1067 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1069 2009-04-29 Frédéric Bernon
1070 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1071 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1072 of broadcast packets even when this option wasn't set. Port maintainers
1073 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1074 If you want this option also filter broadcast on recv operations, you also
1075 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1077 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1078 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1079 DHCP/AUTOIP cooperation
1081 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1082 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1083 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1084 right place in tcp_output and tcp_rexmit).
1086 2009-04-25 Simon Goldschmidt
1087 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1088 when debugging": memp_sizes contained the wrong sizes (including sanity
1089 regions); memp pools for MEM_USE_POOLS were too small
1091 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1092 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1093 behavior, with with ip address string not ended by a '\0', a space or a
1096 2009-04-19 Simon Goldschmidt
1097 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1098 pcb->err is called, not pcb->connected (with an error code).
1100 2009-04-19 Simon Goldschmidt
1101 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1102 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1104 2009-04-19 Simon Goldschmidt
1105 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1106 in the header pbuf, not the data pbuf)
1108 2009-04-18 Simon Goldschmidt
1109 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1111 2009-04-15 Simon Goldschmidt
1112 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1114 2009-04-15 Simon Goldschmidt
1115 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1117 2009-04-15 Simon Goldschmidt
1118 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1119 ip_hinted_output() (for smaller code mainly)
1121 2009-04-15 Simon Goldschmidt
1122 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1124 2009-04-15 Simon Goldschmidt
1125 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1126 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1127 is big enough in dhcp_start
1129 2009-04-15 Simon Goldschmidt
1130 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1132 2009-04-15 Simon Goldschmidt
1133 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1135 2009-04-15 Simon Goldschmidt
1136 * sockets.c: bug #26121: set_errno can be overridden
1138 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1139 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1142 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1143 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1146 2009-03-31 Kieran Mansley
1147 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1148 updates are calculated and sent (BUG20515)
1150 * tcp_in.c: cope with SYN packets received during established states,
1151 and retransmission of initial SYN.
1153 * tcp_out.c: set push bit correctly when tcp segments are merged
1155 2009-03-27 Kieran Mansley
1156 * tcp_out.c set window correctly on probes (correcting change made
1159 2009-03-26 Kieran Mansley
1160 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1161 connections where no reset required (bug #25622)
1163 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1166 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1167 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1168 too small depending on MEM_ALIGNMENT
1170 2009-02-16 Simon Goldschmidt
1171 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1172 converted size argument of netconn_write to 'size_t'
1174 2009-02-16 Simon Goldschmidt
1175 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1176 by moving accept callback function pointer to TCP_PCB_COMMON
1178 2009-02-12 Simon Goldschmidt
1179 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1182 2009-02-11 Simon Goldschmidt
1183 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1185 2009-02-11 Simon Goldschmidt
1186 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1187 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1189 2009-02-10 Simon Goldschmidt
1190 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1191 Accepts_pending is decrease on a corresponding listen pcb when a connection
1192 in state SYN_RCVD is close.
1194 2009-01-28 Jonathan Larmour
1195 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1198 2008-12-19 Simon Goldschmidt
1199 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1201 2008-12-10 Tamas Somogyi, Frédéric Bernon
1202 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1203 port uses deleted netbuf.
1205 2008-10-18 Simon Goldschmidt
1206 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1209 2008-10-15 Simon Goldschmidt
1210 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1211 by packing the struct ip_reass_helper.
1213 2008-10-03 David Woodhouse, Jonathan Larmour
1214 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1216 2008-10-02 Jonathan Larmour
1217 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1218 padding is included.
1220 2008-09-30 Jonathan Larmour
1221 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1222 assertion check that addrlen isn't NULL.
1224 2008-09-30 Jonathan Larmour
1225 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1227 2008-08-26 Simon Goldschmidt
1228 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1229 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1231 2008-08-14 Simon Goldschmidt
1232 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1233 tcp_close returns != ERR_OK)
1235 2008-07-08 Frédéric Bernon
1236 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1237 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1239 2008-06-24 Jonathan Larmour
1240 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1241 if tcp_seg_copy fails.
1243 2008-06-17 Simon Goldschmidt
1244 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1245 and created defines for swapping bytes and folding u32 to u16.
1247 2008-05-30 Kieran Mansley
1248 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1249 rather than rcv_ann_wnd when deciding if packets are in-window.
1250 Contributed by <arasmussen@consultant.datasys.swri.edu>
1252 2008-05-30 Kieran Mansley
1253 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1254 passing as function pointers when MEM_LIBC_MALLOC is defined.
1256 2008-05-09 Jonathan Larmour
1257 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1258 stop it being treated as a fatal error.
1260 2008-04-15 Simon Goldschmidt
1261 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1264 2008-03-27 Simon Goldschmidt
1265 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1266 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1267 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1268 or heap memory from interrupt context
1270 2008-03-26 Simon Goldschmidt
1271 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1272 host sent a zero mss as TCP option.
1279 2008-03-10 Jonathan Larmour
1280 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1281 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1283 2008-01-22 Frédéric Bernon
1284 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1285 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1287 2008-01-14 Frédéric Bernon
1288 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1289 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1290 tcp_recv callback (see rawapi.txt).
1292 2008-01-14 Frédéric Bernon, Marc Chaland
1293 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1295 2008-01-12 Frédéric Bernon
1296 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1297 netconn::sem per netconn::op_completed like suggested for the task #7490
1298 "Add return value to sys_mbox_post".
1300 2008-01-12 Frédéric Bernon
1301 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1302 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1303 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1305 2008-01-10 Frédéric Bernon
1306 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1307 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1308 "blocking" ("block" parameter = 1).
1310 2008-01-10 Frédéric Bernon
1311 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1312 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1313 "Add return value to sys_mbox_post".
1315 2008-01-05 Frédéric Bernon
1316 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1317 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1318 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1319 indicate the number of pointers query by the mailbox. There is three defines
1320 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1321 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1322 parameter in your implementation, but to ignore it to keep the previous behavior.
1323 The new sys_mbox_trypost function return a value to know if the mailbox is
1324 full or if the message is posted. Take a look to sys_arch.txt for more details.
1325 This new function is used in tcpip_input (so, can be called in an interrupt
1326 context since the function is not blocking), and in recv_udp and recv_raw.
1328 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1329 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1330 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1331 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1332 documentation in the rawapi.txt file.
1334 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1335 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1337 2007-12-31 Frédéric Bernon, Luca Ceresoli
1338 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1339 in autoip". The change in etharp_raw could be removed, since all calls to
1340 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1341 wrong in the future.
1343 2007-12-30 Frédéric Bernon, Tom Evans
1344 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1345 Filtering" reported by Tom Evans.
1347 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1348 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1349 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1350 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1351 keep accepting new connections.
1353 2007-12-13 Frédéric Bernon
1354 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1355 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1357 2007-12-12 Frédéric Bernon
1358 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1359 are the one which have ram usage.
1361 2007-12-05 Frédéric Bernon
1362 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1363 set of variables (=0) or a local one (=1). In this last case, your port should
1364 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1365 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1367 2007-12-03 Simon Goldschmidt
1368 * ip.c: ip_input: check if a packet is for inp first before checking all other
1369 netifs on netif_list (speeds up packet receiving in most cases)
1371 2007-11-30 Simon Goldschmidt
1372 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1373 UDP: move a (connected) pcb selected for input to the front of the list of
1374 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1377 2007-11-28 Simon Goldschmidt
1378 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1380 2007-11-25 Simon Goldschmidt
1381 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1384 2007-11-24 Simon Goldschmidt
1385 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1386 to the new file netdb.c; included lwip_getaddrinfo.
1388 2007-11-21 Simon Goldschmidt
1389 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1390 based on the MTU of the netif used to send. Enabled by default. Disable by
1391 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1393 2007-11-19 Frédéric Bernon
1394 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1395 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1396 copy dns payload to parse the response), return an error if there is no place
1397 for a new query, and fix some minor problems.
1399 2007-11-16 Simon Goldschmidt
1400 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1401 removed files: core/inet.c, core/inet6.c
1402 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1403 inet and chksum part; changed includes in all lwIP files as appropriate
1405 2007-11-16 Simon Goldschmidt
1406 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1407 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1408 (gethostbyname/gethostbyname_r).
1410 2007-11-15 Jim Pettinato, Frédéric Bernon
1411 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1412 requests with RAW api interface. Initialization is done in lwip_init() with
1413 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1414 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1415 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1416 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1417 list with points to improve.
1419 2007-11-06 Simon Goldschmidt
1420 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1421 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1422 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1424 2007-11-06 Simon Goldschmidt
1425 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1426 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1427 implementation from netconn api applications.
1429 2007-11-03 Frédéric Bernon
1430 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1431 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1432 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1433 it. This is a first release which have to be improve for TCP. Note it used the
1434 netconn::recv_avail which need to be more "thread-safe" (note there is already
1435 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1437 2007-11-01 Frédéric Bernon, Marc Chaland
1438 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1439 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1440 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1441 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1442 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1444 2007-10-24 Frédéric Bernon
1445 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1446 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1447 some code (like we have talk in "patch #5919 : Create compile switch to remove
1448 select code"), but it could be done later.
1450 2007-10-08 Simon Goldschmidt
1451 * many files: Changed initialization: many init functions are not needed any
1452 more since we now rely on the compiler initializing global and static
1455 2007-10-06 Simon Goldschmidt
1456 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1457 to enqueue the received pbufs so that multiple packets can be reassembled
1458 simultaneously and no static reassembly buffer is needed.
1460 2007-10-05 Simon Goldschmidt
1461 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1462 all netifs (or ports) can use it.
1464 2007-10-05 Frédéric Bernon
1465 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1466 common function to reduce a little bit the footprint (for all functions using
1467 only the "netif" parameter).
1469 2007-10-03 Frédéric Bernon
1470 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1471 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1472 a little bit the footprint (for all functions using only the "netif" parameter).
1474 2007-09-15 Frédéric Bernon
1475 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1476 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1477 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1478 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1480 2007-09-10 Frédéric Bernon
1481 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1482 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1483 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1484 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1485 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1486 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1487 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1488 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1489 when it's queried (any direct call to "sysuptime" is changed by a call to
1490 snmp_get_sysuptime).
1492 2007-09-09 Frédéric Bernon, Bill Florac
1493 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1494 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1495 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1496 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1497 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1498 the next query message to receive the matching multicast streams).
1500 2007-09-08 Frédéric Bernon
1501 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1502 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1503 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1504 Enable to access to these fields with LWIP_TCP=0.
1506 2007-09-05 Frédéric Bernon
1507 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1508 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1509 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1510 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1511 help to reduce footprint, and to reduce "visibility" on the Internet.
1513 2007-09-05 Frédéric Bernon, Bill Florac
1514 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1515 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1516 parameters have to be provided: a task name, and a task stack size. For this
1517 one, since it's platform dependant, you could define the best one for you in
1518 your lwipopts.h. For port maintainers, you can just add these new parameters
1519 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1522 2007-09-05 Frédéric Bernon
1523 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1524 inside init.c for task #7142 "Sanity check user-configurable values".
1526 2007-09-04 Frédéric Bernon, Bill Florac
1527 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1528 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1529 value). It will avoid potential fragmentation problems, use a counter to know
1530 how many times a group is used on an netif, and free it when all applications
1531 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1532 check if LWIP_IGMP!=0).
1534 2007-09-03 Frédéric Bernon
1535 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1536 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1537 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1538 and/or the "interface" field (for netconn layer), for join/leave operations.
1539 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1540 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1542 2007-08-30 Frédéric Bernon
1543 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1544 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1545 with other API (application based on raw API, or future "socket2" API). Ports
1546 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1548 2007-08-30 Frédéric Bernon, Jonathan Larmour
1549 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1550 user-configurable values".
1552 2007-08-29 Frédéric Bernon
1553 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1554 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1555 spirit than the others modules. Modify some IGMP debug traces.
1557 2007-08-29 Frédéric Bernon
1558 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1559 Add lwip_init function to regroup all modules initializations, and to provide
1560 a place to add code for task #7142 "Sanity check user-configurable values".
1561 Ports maintainers should remove direct initializations calls from their code,
1562 and add init.c in their makefiles. Note that lwip_init() function is called
1563 inside tcpip_init, but can also be used by raw api users since all calls are
1564 disabled when matching options are disabled. Also note that their is new options
1565 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1567 2007-08-26 Marc Boucher
1568 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1569 since they can under certain circumstances be called with an invalid conn
1570 pointer after the connection has been closed (and conn has been freed).
1572 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1573 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1574 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1576 2007-08-22 Frédéric Bernon
1577 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1578 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1580 2007-08-22 Frédéric Bernon
1581 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1582 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1583 name is tcpip_input (we keep the name of 1.2.0 function).
1585 2007-08-17 Jared Grubb
1586 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1587 settings into new memp_std.h and optional user file lwippools.h. This adds
1588 more dynamic mempools, and allows the user to create an arbitrary number of
1589 mempools for mem_malloc.
1591 2007-08-16 Marc Boucher
1592 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1593 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1594 close the connection.
1596 2007-08-16 Marc Boucher
1597 * sockets.c: lwip_accept(): check netconn_peer() error return.
1599 2007-08-16 Marc Boucher
1600 * mem.c, mem.h: Added mem_calloc().
1602 2007-08-16 Marc Boucher
1603 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1604 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1605 and starving other message types.
1606 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1608 2007-08-16 Marc Boucher
1609 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1610 type and flgs (later renamed to flags).
1611 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1612 Improved lwip_recvfrom(). TCP push now propagated.
1614 2007-08-16 Marc Boucher
1615 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1618 2007-08-16 Marc Boucher
1619 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1620 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1621 Added PPPoE support and various PPP improvements.
1623 2007-07-25 Simon Goldschmidt
1624 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1625 making netbuf_copy_partial use this function.
1627 2007-07-25 Simon Goldschmidt
1628 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1629 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1632 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1633 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1634 a link callback in the netif struct, and functions to handle it. Be carefull
1635 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1636 if you want to be sure to be compatible with future changes...
1638 2007-06-30 Frédéric Bernon
1639 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1641 2007-06-21 Simon Goldschmidt
1642 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1643 LWIP_AUTOIP =0 and =1 to remove redundant code.
1645 2007-06-21 Simon Goldschmidt
1646 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1647 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1648 heap. This both prevents memory fragmentation and gives a higher speed
1649 at the cost of more memory consumption. Turned off by default.
1651 2007-06-21 Simon Goldschmidt
1652 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1653 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1654 int to be able to send a bigger buffer than 64K with one time (mainly
1655 used from lwip_send).
1657 2007-06-21 Simon Goldschmidt
1658 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1659 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1661 2007-06-21 Simon Goldschmidt
1662 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1663 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1664 changes on low memory or empty send-buffer.
1666 2007-06-18 Simon Goldschmidt
1667 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1668 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1669 used for ethernet and struct eth_addr already had a defined length of 6).
1671 2007-06-17 Simon Goldschmidt
1672 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1673 to disable UDP checksum generation on transmit.
1675 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1676 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1677 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1678 this macro to check "conn" parameter in api_msg.c functions.
1680 2007-06-11 Simon Goldschmidt
1681 * sockets.c, sockets.h: Added UDP lite support for sockets
1683 2007-06-10 Simon Goldschmidt
1684 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1685 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1688 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1689 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1690 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1691 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1692 (see TODO mark in the source code).
1694 2007-06-09 Simon Goldschmidt
1695 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1696 etharp_output() to match netif->output so etharp_output() can be used
1697 directly as netif->output to save one function call.
1699 2007-06-08 Simon Goldschmidt
1700 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1701 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1702 added initialization of those to ethernetif, slipif and loopif.
1704 2007-05-18 Simon Goldschmidt
1705 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1706 (defaulting to off for now) that can be set to 0 to send fragmented
1707 packets by passing PBUF_REFs down the stack.
1709 2007-05-23 Frédéric Bernon
1710 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1711 connections, such present in patch #5959.
1713 2007-05-23 Frédéric Bernon
1714 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1715 code in only one part...
1717 2007-05-18 Simon Goldschmidt
1718 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1719 elements to overflow. This is achieved by adding some bytes before and after
1720 each pool element (increasing their size, of course), filling them with a
1721 prominent value and checking them on freeing the element.
1722 Set it to 2 to also check every element in every pool each time memp_malloc()
1723 or memp_free() is called (slower but more helpful).
1725 2007-05-10 Simon Goldschmidt
1726 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1727 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1730 2007-05-11 Frédéric Bernon
1731 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1732 Include a function pointer instead of a table index in the message to reduce
1733 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1734 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1736 2007-05-10 Simon Goldschmidt
1737 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1738 \ extern "C" {' in all header files. Now you can write your application using
1739 the lwIP stack in C++ and simply #include the core files. Note I have left
1740 out the netif/ppp/*h header files for now, since I don't know which files are
1741 included by applications and which are for internal use only.
1743 2007-05-09 Simon Goldschmidt
1744 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1745 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1746 situations where some compilers might inline the copy and save a function
1747 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1749 2007-05-08 Simon Goldschmidt
1750 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1751 to be overriden in case the C-library malloc implementation is not protected
1752 against concurrent access.
1754 2007-05-04 Simon Goldschmidt (Atte Kojo)
1755 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1756 multiple packets to the same host.
1758 2007-05-04 Frédéric Bernon, Jonathan Larmour
1759 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1760 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1761 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1762 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1763 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1764 these fields are now renamed "addr" & "port".
1766 2007-04-11 Jonathan Larmour
1767 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1768 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1769 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1770 by the port in sys_arch.h if desired.
1772 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1773 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1774 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1775 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1777 2007-04-05 Frédéric Bernon
1778 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1780 2007-04-04 Simon Goldschmidt
1781 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1782 use this for and architecture-independent form to tell the compiler you intentionally
1783 are not using this variable. Can be overriden in cc.h.
1785 2007-03-28 Frédéric Bernon
1786 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1787 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1788 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1789 It will be used by DHCP to register a client hostname, but can also be use when you call
1792 2007-03-28 Frédéric Bernon
1793 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1794 initialize a network interface's flag with. It tell this interface is an ethernet
1795 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1796 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1798 2007-03-26 Frédéric Bernon, Jonathan Larmour
1799 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1800 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1801 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1802 is done in tcpip_init function.
1804 2007-03-22 Frédéric Bernon
1805 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1806 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1807 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1808 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1809 but never used. Fix msg_in.c with the correct #if test for a stat display.
1811 2007-03-21 Kieran Mansley
1812 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1813 Provides callback on netif up/down state change.
1815 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1816 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1817 ip.c, netif.h, tcpip.c, opt.h:
1818 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1819 filter per all network interfaces. Declare a new function in netif to enable to
1820 control the MAC filter (to reduce lwIP traffic processing).
1822 2007-03-11 Frédéric Bernon
1823 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1824 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1825 unless you know what you're doing (default are RFC1122 compliant). Note
1826 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1828 2007-03-08 Frédéric Bernon
1829 * tcp.h: Keepalive values can be configured at compile time, but don't change
1830 this unless you know what you're doing (default are RFC1122 compliant).
1832 2007-03-08 Frédéric Bernon
1833 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1834 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1835 on UDP sockets/netconn.
1837 2007-03-08 Simon Goldschmidt
1838 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1840 2007-03-06 Frédéric Bernon
1841 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1842 Implement SO_RCVTIMEO on UDP sockets/netconn.
1844 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1845 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1846 on the stack and remove the API msg type from memp
1848 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1849 * sockets.h, sockets.c: Move socket initialization to new
1850 lwip_socket_init() function.
1851 NOTE: this changes the API with ports. Ports will have to be
1852 updated to call lwip_socket_init() now.
1854 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1855 * api_lib.c: Use memcpy in netbuf_copy_partial.
1860 2008-03-17 Frédéric Bernon, Ed Kerekes
1861 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1862 some problems to fill the IP header on some targets, use now the
1863 ip.h macros to do it).
1865 2008-03-13 Frédéric Bernon
1866 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1867 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1868 TCP connection caused a crash. Note that using (lwip_)recvfrom
1869 like this is a bit slow and that using (lwip)getpeername is the
1870 good lwip way to do it (so, using recv is faster on tcp sockets).
1872 2008-03-12 Frédéric Bernon, Jonathan Larmour
1873 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1874 recv_raw() does not consume data", and the ping sample (with
1875 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1876 returned the IP payload, without the IP header).
1878 2008-03-04 Jonathan Larmour
1879 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1880 and/or warnings on some systems where mem_size_t and size_t differ.
1881 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1883 2008-03-04 Kieran Mansley (contributions by others)
1884 * Numerous small compiler error/warning fixes from contributions to
1885 mailing list after 1.3.0 release candidate made.
1887 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1888 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1890 2008-01-15 Kieran Mansley
1891 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1892 prevented from sending by a small send window, not just a zero
1895 2008-01-09 Jonathan Larmour
1896 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1897 conflict with Linux system headers.
1899 2008-01-06 Jonathan Larmour
1900 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1901 address entirely on receiving a DHCPNAK, and restarting discovery.
1903 2007-12-21 Simon Goldschmidt
1904 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1905 is not protected" by using new macros for interlocked access to modify/test
1906 netconn->recv_avail.
1908 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1909 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1911 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1912 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1913 of silly window avoidance and prevent lwIP from shrinking the window)
1915 2007-12-04 Simon Goldschmidt
1916 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1917 data packet was lost): add assert that all segment lists are empty in
1918 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1919 state from LAST_ACK in tcp_process
1921 2007-12-02 Simon Goldschmidt
1922 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1923 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1924 has to be set to 0 in lwipopts.h
1926 2007-12-02 Simon Goldschmidt
1927 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1928 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1929 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1930 This is a fix for thread-safety and allocates all items needed for a netconn
1931 when the netconn is created.
1933 2007-11-30 Simon Goldschmidt
1934 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1935 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1936 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1937 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1939 2007-11-27 Simon Goldschmidt
1940 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1941 letting ip_route only use netifs that are up.
1943 2007-11-27 Simon Goldschmidt
1944 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1945 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1946 sockets block most operations once they have seen a fatal error.
1948 2007-11-27 Simon Goldschmidt
1949 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1950 netif to send as an argument (to be able to send on netifs that are down).
1952 2007-11-26 Simon Goldschmidt
1953 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1956 2007-11-21 Simon Goldschmidt
1957 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1958 Fixed the nagle algorithm; nagle now also works for all raw API applications
1959 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1961 2007-11-12 Frédéric Bernon
1962 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1963 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1964 context in do_getaddr.
1966 2007-11-10 Simon Goldschmidt
1967 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1968 happen any time). Now the packet simply isn't enqueued when out of memory.
1970 2007-11-01 Simon Goldschmidt
1971 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1972 TCP_MSS if that is smaller) as long as no MSS option is received from the
1975 2007-11-01 Simon Goldschmidt
1976 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1977 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1978 sending our configured TCP_MSS instead of the one received).
1980 2007-11-01 Simon Goldschmidt
1981 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1982 calculated based on the configured TCP_MSS, not on the MSS option received
1985 2007-10-09 Simon Goldschmidt
1986 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1987 short and also was generated wrong if checksum coverage != tot_len;
1988 receive: checksum was calculated wrong if checksum coverage != tot_len
1990 2007-10-08 Simon Goldschmidt
1991 * mem.c: lfree was not updated in mem_realloc!
1993 2007-10-07 Frédéric Bernon
1994 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1995 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1996 this change cause an API breakage for netconn_addr, since a parameter
1997 type change. Any compiler should cause an error without any changes in
1998 yours netconn_peer calls (so, it can't be a "silent change"). It also
1999 reduce a little bit the footprint for socket layer (lwip_getpeername &
2000 lwip_getsockname use now a common lwip_getaddrname function since
2001 netconn_peer & netconn_addr have the same parameters).
2003 2007-09-20 Simon Goldschmidt
2004 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2005 by checking tcp_tw_pcbs also
2007 2007-09-19 Simon Goldschmidt
2008 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2010 2007-09-15 Mike Kleshov
2011 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2013 2007-09-06 Frédéric Bernon
2014 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2015 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2016 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2017 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2019 2007-08-30 Frédéric Bernon
2020 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2021 and fix some coding style.
2023 2007-08-28 Frédéric Bernon
2024 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2025 kind of packets. These packets are considered like Ethernet packets (payload
2026 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2027 are considered like IP packets (payload pointing to iphdr).
2029 2007-08-27 Frédéric Bernon
2030 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2031 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2032 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2034 2007-08-24 Kieran Mansley
2035 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2036 compiler (Paradigm C++)
2038 2007-08-09 Frédéric Bernon, Bill Florac
2039 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2040 Introduce IGMP_STATS to centralize statistics management.
2042 2007-08-09 Frédéric Bernon, Bill Florac
2043 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2044 packet on a udp pcb binded on an netif's IP address, and not on "any".
2046 2007-08-09 Frédéric Bernon, Bill Florac
2047 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2048 This is mainly on using lookup/lookfor, and some coding styles...
2050 2007-07-26 Frédéric Bernon (and "thedoctor")
2051 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2053 2007-07-25 Simon Goldschmidt
2054 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2055 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2056 (tcp_output is called again later from tcp timers).
2058 2007-07-25 Simon Goldschmidt
2059 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2060 copy_from_pbuf, which illegally modified the given pbuf.
2062 2007-07-25 Simon Goldschmidt
2063 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2064 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2066 2007-07-24 Simon Goldschmidt
2067 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2068 correct state (must be CLOSED).
2070 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2071 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2072 allocation. It now returns NULL.
2074 2007-07-13 Frédéric Bernon
2075 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2078 2007-07-13 Frédéric Bernon
2079 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2080 because current code doesn't follow rawapi.txt documentation.
2082 2007-07-13 Kieran Mansley
2083 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2084 out of sequence processing of received packets
2086 2007-07-03 Simon Goldschmidt
2087 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2088 assumption is made that this pbuf is in one piece (i.e. not chained). These
2089 assumptions clash with the possibility of converting to fully pool-based
2090 pbuf implementations, where PBUF_RAM pbufs might be chained.
2092 2007-07-03 Simon Goldschmidt
2093 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2094 when closing tcp netconns: removed conn->sem, less context switches when
2095 closing, both netconn_close and netconn_delete should safely close tcp
2098 2007-07-02 Simon Goldschmidt
2099 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2100 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2101 to cache ARP table indices with each pcb instead of single-entry cache for
2104 2007-07-02 Simon Goldschmidt
2105 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2106 warnings when assigning to smaller types.
2108 2007-06-28 Simon Goldschmidt
2109 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2111 2007-06-28 Simon Goldschmidt
2112 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2113 a segment contained chained pbufs)
2115 2007-06-28 Frédéric Bernon
2116 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2117 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2118 possible to define this macro in your own lwipopts.h to always use C library's
2119 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2121 2007-06-28 Frédéric Bernon
2122 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2123 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2124 in api_lib/api_msg (use pointers and not type with table, etc...)
2126 2007-06-26 Simon Goldschmidt
2127 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2129 2007-06-25 Simon Goldschmidt
2130 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2131 for udp packets with no matching pcb.
2133 2007-06-25 Simon Goldschmidt
2134 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2135 could get udp input packets if the remote side matched.
2137 2007-06-13 Simon Goldschmidt
2138 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2139 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2141 2007-06-13 Simon Goldschmidt
2142 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2143 -> netconn_new_..() does not allocate a new connection for unsupported
2146 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2147 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2148 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2150 2007-06-13 Frédéric Bernon, Matthias Weisser
2151 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2152 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2153 some macro names collision with some OS macros.
2155 2007-06-11 Simon Goldschmidt
2156 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2157 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2158 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2161 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2162 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2163 where TCP flags wasn't initialized in tcp_keepalive.
2165 2007-06-03 Simon Goldschmidt
2166 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2167 registered, p->payload was modified without modifying p->len if sending
2168 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2170 2007-06-03 Simon Goldschmidt
2171 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2172 re-used the input pbuf even if that didn't have enough space to include the
2173 link headers. Now the space is tested and a new pbuf is allocated for the
2174 echo response packet if the echo request pbuf isn't big enough.
2176 2007-06-01 Simon Goldschmidt
2177 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2179 2007-05-23 Frédéric Bernon
2180 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2181 allocated by do_listen if success) and netconn_accept errors handling. In
2182 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2183 by ASSERT, except for netconn_delete.
2185 2007-05-23 Frédéric Bernon
2186 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2187 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2188 directly close the recvmbox).
2190 2007-05-22 Simon Goldschmidt
2191 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2192 bound but unconnected (and non-listening) tcp_pcbs.
2194 2007-05-22 Frédéric Bernon
2195 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2196 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2197 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2198 like "sys_timeout" in their application threads.
2200 2007-05-22 Frédéric Bernon
2201 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2202 which parameters are used by which do_xxx function, and to avoid "misusing"
2203 parameters (patch #5938).
2205 2007-05-22 Simon Goldschmidt
2206 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2207 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2208 is only 8 bits wide. This affects the api, as there, the protocol was
2211 2007-05-18 Simon Goldschmidt
2212 * memp.c: addition to patch #5913: smaller pointer was returned but
2213 memp_memory was the same size -> did not save memory.
2215 2007-05-16 Simon Goldschmidt
2216 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2219 2007-05-16 Simon Goldschmidt
2220 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2221 as the one of the netif used for sending to prevent sending from old
2222 addresses after a netif address gets changed (partly fixes bug #3168).
2224 2007-05-16 Frédéric Bernon
2225 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2226 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2227 tcpip_init) because we have to be sure that network interfaces are already
2228 added (mac filter is updated only in igmp_init for the moment).
2230 2007-05-16 Simon Goldschmidt
2231 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2232 into sys_arch_sem_wait calls to prevent timers from running while waiting
2233 for the heap. This fixes bug #19167.
2235 2007-05-13 Simon Goldschmidt
2236 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2237 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2240 2007-05-07 Simon Goldschmidt
2241 * mem.c: Another attempt to fix bug #17922.
2243 2007-05-04 Simon Goldschmidt
2244 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2245 implementation so that it can be reused (don't allocate the target
2246 pbuf inside pbuf_copy()).
2248 2007-05-04 Simon Goldschmidt
2249 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2250 to save a little RAM (next pointer of memp is not used while not in pool).
2253 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2256 2007-04-23 Simon Goldschmidt
2257 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2258 in NULL reference for incoming TCP packets". Loopif has to be configured
2259 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2260 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2261 putting packets on a list that is fed to the stack by calling loopif_poll()
2262 (single-thread / NO_SYS / polling environment where e.g.
2263 netif->input() = ip_input).
2265 2007-04-17 Jonathan Larmour
2266 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2267 the difference between two u16_t's.
2268 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2269 MEMP_NUM_NETCONN in sockets.c right now.
2271 2007-04-12 Jonathan Larmour
2272 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2274 2007-04-12 Kieran Mansley
2275 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2276 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2278 2007-04-11 Simon Goldschmidt
2279 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2280 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2281 pbuf.c: removed functions no needed any more (by etharp).
2283 2007-04-11 Kieran Mansley
2284 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2285 "Constant is long" warnings with 16bit compilers. Contributed by
2286 avatar@mmlab.cse.yzu.edu.tw
2288 2007-04-05 Frédéric Bernon, Jonathan Larmour
2289 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2290 the mailbox is active". Now, the post is only done during a connect, and do_send,
2291 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2293 2007-04-03 Frédéric Bernon
2294 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2295 packets. See patch #5834.
2297 2007-03-30 Frédéric Bernon
2298 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2299 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2301 2007-03-30 Frédéric Bernon
2302 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2303 others environment defines (these were too "generic").
2305 2007-03-28 Frédéric Bernon
2306 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2307 result and can cause a crash. lwip_send now check netbuf_ref result.
2309 2007-03-28 Simon Goldschmidt
2310 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2311 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2312 defined. This is the way it should have been already (looking at
2315 2007-03-28 Kieran Mansley
2316 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2317 IP and TCP headers *and* physical link headers
2319 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2320 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2321 to send some garbage. It is not a definitive solution, but the patch does solve
2322 the problem for most cases.
2324 2007-03-22 Frédéric Bernon
2325 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2327 2007-03-22 Frédéric Bernon
2328 * api_lib.c: somes resources couldn't be freed if there was errors during
2329 netconn_new_with_proto_and_callback.
2331 2007-03-22 Frédéric Bernon
2332 * ethernetif.c: update netif->input calls to check return value. In older ports,
2333 it's a good idea to upgrade them, even if before, there could be another problem
2334 (access to an uninitialized mailbox).
2336 2007-03-21 Simon Goldschmidt
2337 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2338 by casting to unsigned).
2340 2007-03-21 Frédéric Bernon
2341 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2342 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2343 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2344 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2345 faster and more reliable communication between api_lib and tcpip.
2347 2007-03-21 Frédéric Bernon
2348 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2350 2007-03-21 Frédéric Bernon
2351 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2353 2007-03-21 Kieran Mansley
2354 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2357 2007-03-21 Kieran Mansley
2358 * Fix all uses of pbuf_header to check the return value. In some
2359 cases just assert if it fails as I'm not sure how to fix them, but
2360 this is no worse than before when they would carry on regardless
2363 2007-03-21 Kieran Mansley
2364 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2365 comment out missing header include in icmp.c
2367 2007-03-20 Frédéric Bernon
2368 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2369 synchronized with memp.h.
2371 2007-03-20 Frédéric Bernon
2372 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2373 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2374 network interfaces. Also fix a compiler warning.
2376 2007-03-20 Kieran Mansley
2377 * udp.c: Only try and use pbuf_header() to make space for headers if
2378 not a ROM or REF pbuf.
2380 2007-03-19 Frédéric Bernon
2381 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2384 2007-03-19 Frédéric Bernon
2385 * Remove unimplemented "memp_realloc" function from memp.h.
2387 2007-03-11 Simon Goldschmidt
2388 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2391 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2392 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2393 (missing `const' qualifier in socket functions), to get more compatible to
2394 standard POSIX sockets.
2396 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2397 * sockets.c: Add asserts inside bind, connect and sendto to check input
2398 parameters. Remove excessive set_errno() calls after get_socket(), because
2399 errno is set inside of get_socket(). Move last sock_set_errno() inside
2402 2007-03-09 Simon Goldschmidt
2403 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2404 was allocated too small.
2406 2007-03-06 Simon Goldschmidt
2407 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2408 the stack from concurrent access.
2410 2007-03-06 Frédéric Bernon, Dmitry Potapov
2411 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2412 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2414 2007-03-06 Simon Goldschmidt
2415 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2416 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2418 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2419 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2420 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2421 Allow to do ARP processing for incoming packets inside tcpip_thread
2422 (protecting ARP layer against concurrent access). You can also disable
2423 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2424 Older ports have to use tcpip_ethinput.
2426 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2427 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2428 from pointer target type"
2430 2007-03-05 Frédéric Bernon
2431 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2432 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2434 2007-03-04 Frédéric Bernon
2435 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2438 2007-03-04 Frédéric Bernon
2439 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2441 The api_msg struct stay on the stack (not moved to netconn struct).
2443 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2444 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2445 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2446 Also fixed cast warning in pbuf_alloc()
2448 2007-03-04 Simon Goldschmidt
2449 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2450 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2452 2007-03-03 Frédéric Bernon
2453 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2454 It is static, and never used in udp.c except udp_init().
2456 2007-03-02 Simon Goldschmidt
2457 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2458 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2459 initialized before tcpip_thread is running (e.g. before OS is started)
2461 2007-03-02 Frédéric Bernon
2462 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2465 2007-02-28 Kieran Mansley
2466 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2467 outside the region of the pbuf by pbuf_header()
2469 2007-02-28 Kieran Mansley
2470 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2471 when supplied timeout is also non-zero
2475 2006-12-05 Leon Woestenberg
2476 * CHANGELOG: Mention STABLE-1.2.0 release.
2480 2006-12-01 Christiaan Simons
2481 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2482 Note this is a workaround. Currently I have no other options left.
2484 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2485 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2486 to include/lwip/opt.h.
2487 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2488 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2489 * opt.h: Add above new options.
2491 2006-08-18 Christiaan Simons
2492 * tcp_{in,out}.c: added SNMP counters.
2493 * ipv4/ip.c: added SNMP counters.
2494 * ipv4/ip_frag.c: added SNMP counters.
2496 2006-08-08 Christiaan Simons
2497 * etharp.{c,h}: added etharp_find_addr() to read
2498 (stable) ethernet/IP address pair from ARP table
2500 2006-07-14 Christiaan Simons
2501 * mib_structs.c: added
2502 * include/lwip/snmp_structs.h: added
2503 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2505 2006-07-06 Christiaan Simons
2506 * snmp/asn1_{enc,dec}.c added
2508 * snmp/msg_{in,out}.c added
2509 * include/lwip/snmp_asn1.h added
2510 * include/lwip/snmp_msg.h added
2511 * doc/snmp_agent.txt added
2513 2006-03-29 Christiaan Simons
2514 * inet.c, inet.h: Added platform byteswap support.
2515 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2516 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2520 2006-11-30 Christiaan Simons
2521 * dhcp.c: Fixed false triggers of request_timeout.
2523 2006-11-28 Christiaan Simons
2524 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2526 2006-10-11 Christiaan Simons
2527 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2528 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2529 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2530 identifier from 170 to 136 (bug #17574).
2532 2006-10-10 Christiaan Simons
2533 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2535 2006-08-17 Christiaan Simons
2536 * udp.c: Fixed bug #17200, added check for broadcast
2537 destinations for PCBs bound to a unicast address.
2539 2006-08-07 Christiaan Simons
2540 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2542 2006-06-27 Christiaan Simons
2543 * api_msg.c: Applied patch for cold case (bug #11135).
2544 In accept_function() ensure newconn->callback is always initialized.
2546 2006-06-15 Christiaan Simons
2547 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2548 facilitate printing of mem_size_t and u16_t statistics.
2550 2006-06-14 Christiaan Simons
2551 * api_msg.c: Applied patch #5146 to handle allocation failures
2552 in accept() by Kevin Lawson.
2554 2006-05-26 Christiaan Simons
2555 * api_lib.c: Removed conn->sem creation and destruction
2556 from netconn_write() and added sys_sem_new to netconn_new_*.
2560 2006-03-03 Christiaan Simons
2561 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2562 access and added pbuf_alloc() return value checks.
2564 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2565 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2566 now handled by the checksum routine properly.
2568 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2569 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2570 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2572 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2573 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2574 submitted by Mitrani Hiroshi.
2576 2005-12-15 Christiaan Simons
2577 * inet.c: Disabled the added summing routine to preserve code space.
2579 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2580 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2581 Added Curt McDowell's optimized checksumming routine for future
2582 inclusion. Need to create test case for unaliged, aligned, odd,
2583 even length combination of cases on various endianess machines.
2585 2005-12-09 Christiaan Simons
2586 * inet.c: Rewrote standard checksum routine in proper portable C.
2588 2005-11-25 Christiaan Simons
2589 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2590 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2591 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2593 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2594 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2595 routine by Peter Jolasson.
2596 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2598 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2599 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2600 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2602 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2603 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2605 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2606 * udp.c: UDP pcb->recv() was called even when it was NULL.
2610 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2611 * etharp.*: Disabled multiple packets on the ARP queue.
2612 This clashes with TCP queueing.
2614 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2615 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2616 Halved the ARP period, doubled the period counts.
2617 ETHARP_MAX_PENDING now should be at least 2. This prevents
2618 the counter from reaching 0 right away (which would allow
2619 too little time for ARP responses to be received).
2621 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2622 * dhcp.c: Decline messages were not multicast but unicast.
2623 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2624 Do not try hard to insert arbitrary packet's source address,
2625 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2626 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2627 querying an address will see it appear in the cache (DHCP could
2628 suffer from this when a server invalidly gave an in-use address.)
2629 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2630 comparing network addresses (identifiers), not the network masks
2632 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2633 IP address actually belongs to the network of the given interface.
2635 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2636 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2640 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2641 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2642 even if one is already pending, if the rcv_wnd is above a threshold
2643 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2644 delayed ACK in order to open the window if the stack is only receiving data.
2646 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2647 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2649 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2650 * etharp.c: Make sure the first pbuf queued on an ARP entry
2651 is properly ref counted.
2653 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2654 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2655 warnings about comparison.
2656 * pbuf.c: Stopped compiler complaining of empty if statement
2657 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2658 * tcp.c: Stopped compiler complaining of empty if statement
2659 when LWIP_DEBUGF() empty.
2660 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2661 * inet.c: Added a couple of casts to quiet the compiler.
2662 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2664 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2665 * inet.c: Made data types consistent in inet_ntoa().
2666 Added casts for return values of checksum routines, to pacify compiler.
2667 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2668 Small corrections to some debugging statements, to pacify compiler.
2670 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2671 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2672 * ethernetif.c Updated low_level_output() to match prototype for
2673 netif->linkoutput and changed low_level_input() similarly for consistency.
2674 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2675 of raw_recv() in raw.h and so avoid compiler error.
2676 * sockets.c: Added trivial (int) cast to keep compiler happier.
2677 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2683 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2684 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2685 your cc.h file defines this either 1 or 0. If non-defined,
2687 * .c: Added <string.h> and <errno.h> includes where used.
2688 * etharp.c: Made some array indices unsigned.
2690 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2691 * netif.*: Added netif_set_up()/down().
2692 * dhcp.c: Changes to restart program flow.
2694 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2695 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2696 single-pass lookup for different candidates. Should exploit locality.
2698 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2699 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2700 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2701 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2702 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2706 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2707 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2708 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2709 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2710 is to prefix the 14-bit Ethernet headers with two padding bytes.
2712 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2713 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2714 * etharp.c: Fixed the case where the packet that initiates the ARP request
2715 is not queued, and gets lost. Fixed the case where the packets destination
2716 address is already known; we now always queue the packet and perform an ARP
2723 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2724 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2725 * Fixed two possible NULL references in rare cases.
2731 * Fixed DHCP which did not include the IP address in DECLINE messages.
2735 * etharp.c has been hauled over a bit.
2741 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2742 * Packets sent from ARP queue had invalid source hardware address.
2746 * Pass-by ARP requests do now update the cache.
2750 * No longer dependent on ctype.h.
2751 * New socket options.
2752 * Raw IP pcb support.
2758 * Some debug formatters and casts fixed.
2759 * Numereous fixes in PPP.
2763 * DEBUGF now is LWIP_DEBUGF
2764 * pbuf_dechain() has been re-enabled.
2765 * Mentioned the changed use of CVS branches in README.
2771 * Fixed pool pbuf memory leak in pbuf_alloc().
2772 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2773 Reported by Savin Zlobec.
2775 * PBUF_POOL chains had their tot_len field not set for non-first
2776 pbufs. Fixed in pbuf_alloc().
2780 * Added PPP stack contributed by Marc Boucher
2784 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2786 * ARP queueuing now queues the latest packet instead of the first.
2787 This is the RFC recommended behaviour, but can be overridden in
2794 * TCP has been fixed to deal with the new use of the pbuf->ref
2797 * DHCP dhcp_inform() crash bug fixed.
2801 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2802 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2803 Implemented by David Haas.
2809 * The packet buffer implementation has been enhanced to support
2810 zero-copy and copy-on-demand for packet buffers which have their
2811 payloads in application-managed memory.
2812 Implemented by David Haas.
2814 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2815 if an outgoing packet can be directly sent on the link, or perform
2816 a copy-on-demand when necessary.
2818 The application can safely assume the packet is sent, and the RAM
2819 is available to the application directly after calling udp_send()
2820 or similar function.
2824 * ARP_QUEUEING should now correctly work for all cases, including
2826 Implemented by Leon Woestenberg.
2830 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2831 to a '0.0.0.0' IP address.
2833 * The packet buffer implementation is changed. The pbuf->ref counter
2834 meaning has changed, and several pbuf functions have been
2835 adapted accordingly.
2837 * netif drivers have to be changed to set the hardware address length field
2838 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2839 See the contrib/ports/c16x cs8900 driver as a driver example.
2841 * netif's have a dhcp field that must be initialized to NULL by the driver.
2842 See the contrib/ports/c16x cs8900 driver as a driver example.
2844 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2845 logged in CVS but have not been explained here.
2847 (0.5.3) Changes since version 0.5.2
2851 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2852 threads because it wasn't protected by semaphores.
2856 * struct ip_addr now packed.
2858 * The name of the time variable in arp.c has been changed to ctime
2859 to avoid conflicts with the time() function.
2861 (0.5.2) Changes since version 0.5.1
2865 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2869 * A bug in tcp_parseopt() could cause the stack to hang because of a
2870 malformed TCP option.
2872 * The address of new connections in the accept() function in the BSD
2873 socket library was not handled correctly.
2875 * pbuf_dechain() did not update the ->tot_len field of the tail.
2877 * Aborted TCP connections were not handled correctly in all
2882 * All protocol header structs are now packed.
2884 * The ->len field in the tcp_seg structure now counts the actual
2885 amount of data, and does not add one for SYN and FIN segments.
2887 (0.5.1) Changes since version 0.5.0
2891 * Possible to run as a user process under Linux.
2893 * Preliminary support for cross platform packed structs.
2895 * ARP timer now implemented.
2899 * TCP output queue length was badly initialized when opening
2902 * TCP delayed ACKs were not sent correctly.
2904 * Explicit initialization of BSS segment variables.
2906 * read() in BSD socket library could drop data.
2908 * Problems with memory alignment.
2910 * Situations when all TCP buffers were used could lead to
2913 * TCP MSS option wasn't parsed correctly.
2915 * Problems with UDP checksum calculation.
2917 * IP multicast address tests had endianess problems.
2919 * ARP requests had wrong destination hardware address.
2923 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2925 * A ->linkoutput() member was added to struct netif.
2927 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2929 * ntoh* macros are now null definitions for big endian CPUs.
2931 (0.5.0) Changes since version 0.4.2
2935 * Redesigned operating system emulation layer to make porting easier.
2937 * Better control over TCP output buffers.
2939 * Documenation added.
2943 * Locking issues in buffer management.
2945 * Bugfixes in the sequential API.
2947 * IP forwarding could cause memory leakage. This has been fixed.
2951 * Directory structure somewhat changed; the core/ tree has been
2954 (0.4.2) Changes since version 0.4.1
2958 * Experimental ARP implementation added.
2960 * Skeleton Ethernet driver added.
2962 * Experimental BSD socket API library added.
2966 * In very intense situations, memory leakage could occur. This has
2971 * Variables named "data" and "code" have been renamed in order to
2972 avoid name conflicts in certain compilers.
2974 * Variable++ have in appliciable cases been translated to ++variable
2975 since some compilers generate better code in the latter case.
2977 (0.4.1) Changes since version 0.4
2981 * TCP: Connection attempts time out earlier than data
2982 transmissions. Nagle algorithm implemented. Push flag set on the
2983 last segment in a burst.
2985 * UDP: experimental support for UDP-Lite extensions.
2989 * TCP: out of order segments were in some cases handled incorrectly,
2990 and this has now been fixed. Delayed acknowledgements was broken
2991 in 0.4, has now been fixed. Binding to an address that is in use
2992 now results in an error. Reset connections sometimes hung an
2993 application; this has been fixed.
2995 * Checksum calculation sometimes failed for chained pbufs with odd
2996 lengths. This has been fixed.
2998 * API: a lot of bug fixes in the API. The UDP API has been improved
2999 and tested. Error reporting and handling has been
3000 improved. Logical flaws and race conditions for incoming TCP
3001 connections has been found and removed.
3003 * Memory manager: alignment issues. Reallocating memory sometimes
3004 failed, this has been fixed.
3006 * Generic library: bcopy was flawed and has been fixed.
3010 * API: all datatypes has been changed from generic ones such as
3011 ints, to specified ones such as u16_t. Functions that return
3012 errors now have the correct type (err_t).
3014 * General: A lot of code cleaned up and debugging code removed. Many
3015 portability issues have been fixed.
3017 * The license was changed; the advertising clause was removed.
3021 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3022 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3025 (0.4) Changes since version 0.3.1
3027 * Memory management has been radically changed; instead of
3028 allocating memory from a shared heap, memory for objects that are
3029 rapidly allocated and deallocated is now kept in pools. Allocation
3030 and deallocation from those memory pools is very fast. The shared
3031 heap is still present but is used less frequently.
3033 * The memory, memory pool, and packet buffer subsystems now support
3034 4-, 2-, or 1-byte alignment.
3036 * "Out of memory" situations are handled in a more robust way.
3038 * Stack usage has been reduced.
3040 * Easier configuration of lwIP parameters such as memory usage,
3041 TTLs, statistics gathering, etc. All configuration parameters are
3042 now kept in a single header file "lwipopts.h".
3044 * The directory structure has been changed slightly so that all
3045 architecture specific files are kept under the src/arch
3048 * Error propagation has been improved, both in the protocol modules
3051 * The code for the RTXC architecture has been implemented, tested
3054 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3055 the Internet checksum modules.
3057 * Bugs related to porting between a 32-bit and a 16-bit architecture
3058 have been found and corrected.
3060 * The license has been changed slightly to conform more with the
3061 original BSD license, including the advertisement clause.
3063 (0.3.1) Changes since version 0.3
3065 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3066 RAM never returned the RAM when the pbuf was deallocated.
3068 * TCP congestion control, window updates and retransmissions did not
3069 work correctly. This has now been fixed.
3071 * Bugfixes in the API.
3073 (0.3) Changes since version 0.2
3075 * New and improved directory structure. All include files are now
3076 kept in a dedicated include/ directory.
3078 * The API now has proper error handling. A new function,
3079 netconn_err(), now returns an error code for the connection in
3082 * Improvements in the memory management subsystem. The system now
3083 keeps a pointer to the lowest free memory block. A new function,
3084 mem_malloc2() tries to allocate memory once, and if it fails tries
3085 to free some memory and retry the allocation.
3087 * Much testing has been done with limited memory
3088 configurations. lwIP now does a better job when overloaded.
3090 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3092 * Many bugfixes in the TCP code:
3094 - Fixed a bug in tcp_close().
3096 - The TCP receive window was incorrectly closed when out of
3097 sequence segments was received. This has been fixed.
3099 - Connections are now timed-out of the FIN-WAIT-2 state.
3101 - The initial congestion window could in some cases be too
3102 large. This has been fixed.
3104 - The retransmission queue could in some cases be screwed up. This
3107 - TCP RST flag now handled correctly.
3109 - Out of sequence data was in some cases never delivered to the
3110 application. This has been fixed.
3112 - Retransmitted segments now contain the correct acknowledgment
3113 number and advertised window.
3115 - TCP retransmission timeout backoffs are not correctly computed
3116 (ala BSD). After a number of retransmissions, TCP now gives up
3119 * TCP connections now are kept on three lists, one for active
3120 connections, one for listening connections, and one for
3121 connections that are in TIME-WAIT. This greatly speeds up the fast
3122 timeout processing for sending delayed ACKs.
3124 * TCP now provides proper feedback to the application when a
3125 connection has been successfully set up.
3127 * More comments have been added to the code. The code has also been
3128 somewhat cleaned up.
3130 (0.2) Initial public release.