5 * [Enter new changes just after this line - do not remove this line]
9 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
10 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
13 2011-05-25: Simon Goldschmidt
14 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
15 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
16 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
17 code so that the code is more readable.
19 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
20 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
21 Ivan! (this is work in progress: we're just post release anyway :-)
23 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
24 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
30 2011-06-26: Simon Goldschmidt
31 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
32 updating its documentation only.
34 2011-06-26: Simon Goldschmidt
35 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
38 2011-06-26: Simon Goldschmidt
39 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
47 2011-03-27: Simon Goldschmidt
48 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
49 calculate it in tcp_zero_window_probe (the only place where it was used).
51 2010-11-21: Simon Goldschmidt
52 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
55 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
56 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
57 IP_MULTICAST_LOOP at socket- and raw-API level.
59 2010-06-16: Simon Goldschmidt
60 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
61 link-layer-addressed UDP traffic to be received while a netif is down (just
62 like DHCP during configuration)
64 2010-05-22: Simon Goldschmidt
65 * many many files: bug #27352: removed packing from ip_addr_t, the packed
66 version is now only used in protocol headers. Added global storage for
67 current src/dest IP address while in input functions.
69 2010-05-16: Simon Goldschmidt
70 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
71 calculation (and use them throughout the stack where applicable)
73 2010-05-16: Simon Goldschmidt
74 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
75 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
77 2010-05-16: Simon Goldschmidt
78 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
79 MEMP pool instead of the heap
81 2010-05-13: Simon Goldschmidt
82 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
83 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
84 packets to more than one pcb.
86 2010-05-02: Simon Goldschmidt
87 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
88 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
90 2010-04-30: Simon Goldschmidt
91 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
92 take a precalculated checksum, added pbuf_fill_chksum() to copy data
93 into a pbuf and at the same time calculating the checksum for that data
95 2010-04-29: Simon Goldschmidt
96 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
97 2-byte-aligned IP addresses and MAC addresses
99 2010-04-28: Patch by Bill Auerbach
100 * ip.c: Inline generating IP checksum to save a function call
102 2010-04-14: Simon Goldschmidt
103 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
104 tcpip_thread processes messages or timeouts to implement a watchdog.
106 2010-03-28: Simon Goldschmidt
107 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
108 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
110 2010-03-27: Simon Goldschmidt
111 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
112 etharp_query to prevent unnecessary function calls (inspired by
115 2010-03-20: Simon Goldschmidt
116 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
117 since the linker cannot do this automatically to save space.
119 2010-03-20: Simon Goldschmidt
120 * opt.h, etharp.c/.h: Added support for static ARP table entries
122 2010-03-14: Simon Goldschmidt
123 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
124 when creating TCP segments, not when (re-)transmitting them.
126 2010-03-07: Simon Goldschmidt
127 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
128 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
129 This should speed up receiving data on sockets as the select code in
130 event_callback is only executed when select is waiting.
132 2010-03-06: Simon Goldschmidt
133 * tcp_out.c: task #7013 (Create option to have all packets delivered to
134 netif->output in one piece): Always copy to try to create single pbufs
137 2010-03-06: Simon Goldschmidt
138 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
139 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
140 for tcp netconns to receive pbufs, not netbufs; use that function
143 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
144 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
145 Work on tcp_enqueue: Don't waste memory when chaining segments,
146 added option TCP_OVERSIZE to prevent creating many small pbufs when
147 calling tcp_write with many small blocks of data. Instead, pbufs are
148 allocated larger than needed and the space is used for later calls to
151 2010-02-21: Simon Goldschmidt
152 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
155 2010-02-21: Simon Goldschmidt
156 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
157 implementation of tcp to make API usage cleare to application programmers
159 2010-02-14: Simon Goldschmidt/Stephane Lesage
160 * ip_addr.h: Improved some defines working on ip addresses, added faster
161 macro to copy addresses that cannot be NULL
163 2010-02-13: Simon Goldschmidt
164 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
165 blocking send operation)
167 2010-02-12: Simon Goldschmidt
168 * sockets.c/.h: Added a minimal version of posix fctl() to have a
169 standardised way to set O_NONBLOCK for nonblocking sockets.
171 2010-02-12: Simon Goldschmidt
172 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
173 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
174 and dhcp work with user-allocated structs instead of callin mem_malloc
176 2010-02-12: Simon Goldschmidt/Jeff Barber
177 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
178 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
180 2010-02-12: Simon Goldschmidt
181 * sys layer: task #10139 (Prefer statically allocated memory): converted
182 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
183 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
184 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
185 to let sys.h use binary semaphores instead of mutexes - as before)
187 2010-02-09: Simon Goldschmidt (Simon Kallweit)
188 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
189 (Restart system timeout handling)
191 2010-02-09: Simon Goldschmidt
192 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
193 netif.c) - loopif does not have to be created by the port any more,
194 just define LWIP_HAVE_LOOPIF to 1.
196 2010-02-08: Simon Goldschmidt
197 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
198 inet_ntoa_r/ipaddr_ntoa_r
200 2010-02-08: Simon Goldschmidt
201 * netif.h: Added netif_s/get_igmp_mac_filter() macros
203 2010-02-05: Simon Goldschmidt
204 * netif.h: Added function-like macros to get/set the hostname on a netif
206 2010-02-04: Simon Goldschmidt
207 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
208 make changing the actual implementation behind the typedef easier.
210 2010-02-01: Simon Goldschmidt
211 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
212 for allocating memory when getaddrinfo() is called.
214 2010-01-31: Simon Goldschmidt
215 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
216 them once instead of parsing for every option. This also removes
217 the need for mem_malloc from dhcp_recv and makes it possible to
218 correctly retrieve the BOOTP file.
220 2010-01-30: simon Goldschmidt
221 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
224 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
225 * api.h, api_msg.c, sockets.c: Added except set support in select
228 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
229 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
230 Add non-blocking support for connect (partly from patch #6860),
231 plus many cleanups in socket & netconn API.
233 2010-01-27: Simon Goldschmidt
234 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
235 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
237 2010-01-26: Simon Goldschmidt
238 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
240 2010-01-14: Simon Goldschmidt
241 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
242 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
244 2010-01-13: Simon Goldschmidt
245 * mem.c: The heap now may be moved to user-defined memory by defining
246 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
247 (patch #6966 and bug #26133)
249 2010-01-10: Simon Goldschmidt (Bill Auerbach)
250 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
253 2010-01-10: Simon Goldschmidt
254 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
255 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
257 2009-12-31: Simon Goldschmidt
258 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
259 added timers.c/.h: Separated timer implementation from semaphore/mbox
260 implementation, moved timer implementation to timers.c/.h, timers are
261 now only called from tcpip_thread or by explicitly checking them.
264 2009-12-27: Simon Goldschmidt
265 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
266 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
271 2011-04-20: Simon Goldschmidt
272 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
274 2011-04-13: Simon Goldschmidt
275 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
276 using ports in the IANA private/dynamic range (49152 through 65535).
278 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
279 * etharp.h/.c: Fixed broken VLAN support.
281 2011-03-27: Simon Goldschmidt
282 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
283 pcbs) by checking if the pcb was bound (local_port != 0).
285 2011-03-27: Simon Goldschmidt
286 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
288 2011-03-27: Simon Goldschmidt
289 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
290 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
292 2011-03-27: Simon Goldschmidt
293 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
294 is present never times out) by starting retransmission timer before checking
297 2011-03-22: Simon Goldschmidt
298 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
299 calling sio_read_abort() if the file descriptor is valid.
301 2011-03-14: Simon Goldschmidt
302 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
303 more than once can render a socket useless) since it mainly involves changing
304 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
306 2011-03-13: Simon Goldschmidt
307 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
308 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
309 use EALRADY instead of -1
311 2011-03-13: Simon Goldschmidt
312 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
313 connection has been aborted by err_tcp (since this is not a normal closing
316 2011-03-13: Simon Goldschmidt
317 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
318 with pcb->state != CLOSED
320 2011-02-17: Simon Goldschmidt
321 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
324 2011-02-17: Simon Goldschmidt
325 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
327 2011-01-24: Simon Goldschmidt
328 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
330 2010-12-02: Simon Goldschmidt
331 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
333 2010-11-23: Simon Goldschmidt
334 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
335 LWIP_SO_RCVBUF and ioctl/FIONREAD.
337 2010-11-23: Simon Goldschmidt
338 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
339 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
341 2010-11-23: Simon Goldschmidt
342 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
343 refusing 'refused_data' again.
345 2010-11-22: Simon Goldschmidt
346 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
347 after a successful nonblocking connection.
349 2010-11-22: Simon Goldschmidt
350 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
351 must be sent link-local
353 2010-11-22: Simon Goldschmidt
354 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
357 2010-11-20: Simon Goldschmidt
358 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
360 2010-11-20: Simon Goldschmidt
361 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
362 resemble other stacks.
364 2010-11-20: Simon Goldschmidt
365 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
366 no-copy TCP writes will never succeed.
368 2010-11-20: Simon Goldschmidt
369 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
370 not match documentation: return ERR_ARG instead of ERR_VAL if not
371 initialized or wrong argument.
373 2010-10-20: Simon Goldschmidt
374 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
376 2010-10-05: Simon Goldschmidt
377 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
378 replugging the network cable after an AutoIP address was assigned.
380 2010-08-10: Simon Goldschmidt
381 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
383 2010-08-03: Simon Goldschmidt
384 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
386 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
387 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
388 endian architectures)
390 2010-07-28: Simon Goldschmidt
391 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
394 2010-07-27: Simon Goldschmidt
395 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
396 harm but never did anything
398 2010-07-21: Simon Goldschmidt
399 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
402 2010-07-16: Kieran Mansley
403 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
405 2010-07-10: Simon Goldschmidt
406 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
408 2010-06-30: Simon Goldschmidt
409 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
412 2010-06-28: Kieran Mansley
413 * timers.c remove unportable printing of C function pointers
415 2010-06-24: Simon Goldschmidt
416 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
417 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
419 2010-06-24: Simon Goldschmidt
420 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
421 implemented shutdown at socket level.
423 2010-06-21: Simon Goldschmidt
424 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
425 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
426 custom pbufs that reference other (original) pbufs. Additionally set
427 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
429 2010-06-15: Simon Goldschmidt
430 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
432 2010-06-14: Simon Goldschmidt
433 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
435 2010-06-12: Simon Goldschmidt
436 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
439 2010-05-17: Simon Goldschmidt
440 * netdb.c: Correctly NULL-terminate h_addr_list
442 2010-05-16: Simon Goldschmidt
443 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
444 "symbol already defined" i.e. when linking to winsock
446 2010-05-05: Simon Goldschmidt
447 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
450 2010-04-21: Simon Goldschmidt
451 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
454 2010-03-28: Luca Ceresoli
455 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
457 2010-03-27: Luca Ceresoli
458 * mib2.c: patch #7130: remove meaningless const qualifiers
460 2010-03-26: Simon Goldschmidt
461 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
463 2010-03-26: Simon Goldschmidt
464 * various files: Fixed compiling with different options disabled (TCP/UDP),
465 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
467 2010-03-25: Simon Goldschmidt
468 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
470 2010-03-25: Simon Goldschmidt
471 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
472 overrunning our rcv_wnd in ooseq case.
474 2010-03-22: Simon Goldschmidt
475 * tcp.c: tcp_listen() did not copy the pcb's prio.
477 2010-03-19: Simon Goldschmidt
478 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
480 2010-03-14: Simon Goldschmidt
481 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
482 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
483 and basing PBUF_LINK_HLEN on it.
485 2010-03-08: Simon Goldschmidt
486 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
487 when assiging routable address): when checking incoming packets and
488 aborting existing connection on address change, filter out link-local
491 2010-03-06: Simon Goldschmidt
492 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
494 2010-03-06: Simon Goldschmidt
495 * ipv4/ip.c: Don't try to forward link-local addresses
497 2010-03-06: Simon Goldschmidt
498 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
501 2010-03-05: Simon Goldschmidt
502 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
505 2010-03-05: Simon Goldschmidt
506 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
507 into multiple calls to tcp_write.
509 2010-02-21: Simon Goldschmidt
510 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
511 the implementation of DNS_USES_STATIC_BUF==1)
513 2010-02-20: Simon Goldschmidt
514 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
515 close() vs. shutdown(). Now the application does not get any more
516 recv callbacks after calling tcp_close(). Added tcp_shutdown().
518 2010-02-19: Simon Goldschmidt
519 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
520 confusion with realloc()
522 2010-02-15: Simon Goldschmidt/Stephane Lesage
523 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
526 2010-02-14: Simon Goldschmidt
527 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
528 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
529 admin-status of a netif are up
531 2010-02-14: Simon Goldschmidt
532 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
533 reception and is not really necessary
535 2010-02-14: Simon Goldschmidt
536 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
537 request was directed as us (RFC 826, Packet Reception), otherwise
538 only update existing entries; internalized some functions
540 2010-02-14: Simon Goldschmidt
541 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
542 disabled on netif used for PPPoE) by adding a new netif flag
543 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
544 device but prevents usage of ARP (so that ethernet_input can be used
547 2010-02-12: Simon Goldschmidt
548 * netif.c: netif_set_link_up/down: only do something if the link state
551 2010-02-12: Simon Goldschmidt/Stephane Lesage
552 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
555 2010-02-12: Simon Goldschmidt
556 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
558 2010-02-09: Simon Goldschmidt
559 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
560 (recv() makes receive window update for data that wasn't received by
563 2010-02-09: Simon Goldschmidt/Stephane Lesage
564 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
565 or any netconn_recv() error)
567 2010-02-09: Simon Goldschmidt
568 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
570 2010-02-09: Simon Goldschmidt
571 * netif.c: For loopback packets, adjust the stats- and snmp-counters
572 for the loopback netif.
574 2010-02-08: Simon Goldschmidt
575 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
576 since they are not used anywhere else.
578 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
579 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
580 (patch from bug #28798)
582 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
583 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
584 another bug when LWIP_RAND() returns zero.
586 2010-02-04: Simon Goldschmidt
587 * nearly every file: Use macros defined in ip_addr.h (some of them new)
588 to work with IP addresses (preparation for bug #27352 - Change ip_addr
589 from struct to typedef (u32_t) - and better code).
591 2010-01-31: Simon Goldschmidt
592 * netif.c: Don't call the link-callback from netif_set_up/down() since
593 this invalidly retriggers DHCP.
595 2010-01-29: Simon Goldschmidt
596 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
597 portability file inet.h and its contents from the stack: moved htonX-
598 functions to def.h (and the new def.c - they are not ipv4 dependent),
599 let inet.h depend on ip_addr.h and not the other way round.
600 This fixes bug #28732.
602 2010-01-28: Kieran Mansley
603 * tcp.c: Ensure ssthresh >= 2*MSS
605 2010-01-27: Simon Goldschmidt
606 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
607 callback can lead to accessing unallocated memory. As a consequence,
608 ERR_ABRT means the application has called tcp_abort()!
610 2010-01-25: Simon Goldschmidt
611 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
612 not implemented in SNMP): write-only or not-accessible are still
613 returned by getnext (though not by get)
615 2010-01-24: Simon Goldschmidt
616 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
617 not use reserved C/C++ keywords
619 2010-01-23: Simon Goldschmidt
620 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
623 2010-01-21: Simon Goldschmidt
624 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
625 if tcp_enqueue fails) both in raw- and netconn-API
627 2010-01-19: Simon Goldschmidt
628 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
630 2010-01-18: Iordan Neshev/Simon Goldschmidt
631 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
632 bugfix backports from 2.4.x.
634 2010-01-18: Simon Goldschmidt
635 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
637 2010-01-17: Simon Goldschmidt
638 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
639 task #10102: "netconn: clean up conn->err threading issues" by adding
640 error return value to struct api_msg_msg
642 2010-01-17: Simon Goldschmidt
643 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
644 to return err_t (bugs #27709 and #28087)
646 2010-01-14: Simon Goldschmidt
647 * ...: Use typedef for function prototypes throughout the stack.
649 2010-01-13: Simon Goldschmidt
650 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
651 window = 0) by correctly draining recvmbox/acceptmbox
653 2010-01-11: Simon Goldschmidt
654 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
655 erroneous callbacks) by copying the code from recent pppd
657 2010-01-10: Simon Goldschmidt
658 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
660 2010-01-10: Simon Goldschmidt
661 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
663 2010-01-08: Simon Goldschmidt
664 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
666 2010-01-08: Simon Goldschmidt
667 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
668 passed to dns_local_addhost() might be volatile
670 2010-01-07: Simon Goldschmidt
671 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
673 2010-01-06: Simon Goldschmidt
674 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
676 2009-12-31: Simon Goldschmidt
677 * many ppp files: Reorganised PPP source code from ucip structure to pppd
678 structure to easily compare our code against the pppd code (around v2.3.1)
680 2009-12-27: Simon Goldschmidt
681 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
689 2009-10-27 Simon Goldschmidt/Stephan Lesage
690 * netifapi.c/.h: Added netifapi_netif_set_addr()
692 2009-10-07 Simon Goldschmidt/Fabian Koch
693 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
694 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
696 2009-08-26 Simon Goldschmidt/Simon Kallweit
697 * slipif.c/.h: bug #26397: SLIP polling support
699 2009-08-25 Simon Goldschmidt
700 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
701 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
703 2009-08-25 Simon Goldschmidt
704 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
706 2009-08-24 Jakob Stoklund Olesen
707 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
708 to netif_set_link_up().
710 2009-08-23 Simon Goldschmidt
711 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
712 to a human-readable string.
716 2009-12-24: Kieran Mansley
717 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
720 2009-12-06: Simon Goldschmidt
721 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
722 be statically allocated (like in ucip)
724 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
725 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
727 2009-12-03: Simon Goldschmidt
728 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
729 could have non-zero length
731 2009-12-02: Simon Goldschmidt
732 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
733 tcp_input_pcb until after calling the pcb's callbacks
735 2009-11-29: Simon Goldschmidt
736 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
737 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
739 2009-11-29: Simon Goldschmidt
740 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
741 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
743 2009-11-26: Simon Goldschmidt
744 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
747 2009-11-26: Simon Goldschmidt
748 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
749 algorithm at PCB level
751 2009-11-22: Simon Goldschmidt
752 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
754 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
755 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
756 reusing time-wait pcb
758 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
759 * sockets.c: Fixed bug #28062: Data received directly after accepting
760 does not wake up select
762 2009-11-11: Simon Goldschmidt
763 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
765 2009-10-30: Simon Goldschmidt
766 * opt.h: Increased default value for TCP_MSS to 536, updated default
767 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
769 2009-10-28: Kieran Mansley
770 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
771 to follow algorithm from TCP/IP Illustrated
773 2009-10-27: Kieran Mansley
774 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
776 2009-10-25: Simon Goldschmidt
777 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
778 pcb->recv is NULL to keep rcv_wnd correct)
780 2009-10-25: Simon Goldschmidt
781 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
783 2009-10-23: Simon Goldschmidt (David Empson)
784 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
786 2009-10-21: Simon Goldschmidt
787 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
788 trailing 1 byte len (SYN/FIN)
790 2009-10-21: Simon Goldschmidt
791 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
793 2009-10-19: Simon Goldschmidt
794 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
795 conditional code to assert where applicable), check pbuf length before
796 testing for valid reply
798 2009-10-19: Simon Goldschmidt
799 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
800 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
802 2009-10-16: Simon Goldschmidt
803 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
804 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
807 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
808 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
810 2009-10-15: Simon Goldschmidt
811 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
814 2009-10-15: Simon Goldschmidt
815 * autoip.c: Fixed bug #27704: autoip starts with wrong address
816 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
817 of network byte order
819 2009-10-11 Simon Goldschmidt (Jörg Kesten)
820 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
821 which are not consecutive when retransmitting unacked segments
823 2009-10-09 Simon Goldschmidt
824 * opt.h: Fixed default values of some stats to only be enabled if used
825 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
827 2009-08-30 Simon Goldschmidt
828 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
829 function" by checking for loopback before calling ip_frag
831 2009-08-25 Simon Goldschmidt
832 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
834 2009-08-23 Simon Goldschmidt
835 * ppp.c: bug #27078: Possible memory leak in pppInit()
837 2009-08-23 Simon Goldschmidt
838 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
841 2009-08-23 Simon Goldschmidt
842 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
843 Fixed wrong parenthesis, added check in init.c
845 2009-08-23 Simon Goldschmidt
846 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
848 2009-08-23 Simon Goldschmidt
849 * many ppp files: bug #27267: Added include to string.h where needed
851 2009-08-23 Simon Goldschmidt
852 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
859 2009-05-10 Simon Goldschmidt
860 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
861 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
862 one pbuf to help MACs that don't support scatter-gather DMA.
864 2009-05-09 Simon Goldschmidt
865 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
866 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
868 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
869 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
870 extended info about the currently received packet.
872 2009-04-27 Simon Goldschmidt
873 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
875 2009-04-25 Simon Goldschmidt
876 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
877 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
879 2009-04-21 Simon Goldschmidt
880 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
881 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
882 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
883 as an external function for lookup.
885 2009-04-15 Simon Goldschmidt
886 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
888 2009-03-31 Kieran Mansley
889 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
890 TCP timestamp options, off by default. Rework tcp_enqueue() to
891 take option flags rather than specified option data
893 2009-02-18 Simon Goldschmidt
894 * cc.h: Added printf formatter for size_t: SZT_F
896 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
897 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
900 2009-02-12 Simon Goldschmidt
901 * init.h: Added LWIP_VERSION to get the current version of the stack
903 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
904 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
905 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
908 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
909 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
910 is only used by UDPLITE at present, so conditionalise it.
912 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
913 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
914 "seed" address. This should reduce AUTOIP conflicts if
915 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
917 2008-10-02 Jonathan Larmour and Rishi Khan
918 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
921 2008-06-30 Simon Goldschmidt
922 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
923 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
924 mem_free to run between mem_malloc iterations. Added illegal counter for
927 2008-06-27 Simon Goldschmidt
928 * stats.h/.c, some other files: patch #6483: stats module improvement:
929 Added defines to display each module's statistic individually, added stats
930 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
932 2008-06-17 Simon Goldschmidt
933 * err.h: patch #6459: Made err_t overridable to use a more efficient type
934 (define LWIP_ERR_T in cc.h)
936 2008-06-17 Simon Goldschmidt
937 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
940 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
941 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
942 modified version of patch # 6370: Moved loopif code to netif.c so that
943 loopback traffic is supported on all netifs (all local IPs).
944 Added option to limit loopback packets for each netifs.
948 2009-08-12 Kieran Mansley
949 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
950 out of window or out of order properly
952 2009-08-12 Kieran Mansley
953 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
955 2009-07-28 Simon Goldschmidt
956 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
958 2009-07-27 Kieran Mansley
959 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
961 2009-07-09 Kieran Mansley
962 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
963 recv_avail and don't increment counters until message successfully
966 2009-06-25 Kieran Mansley
967 * api_msg.c api.h: BUG26722: initialise netconn write variables
970 2009-06-25 Kieran Mansley
971 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
973 2009-06-25 Kieran Mansley
974 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
975 simultaneous close behaviour, and make snd_nxt have the same meaning
978 2009-05-12 Simon Goldschmidt
979 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
980 arp_table / uses etharp_query" by adding etharp_gratuitous()
982 2009-05-12 Simon Goldschmidt
983 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
984 to the IP header (used by igmp_ip_output_if)
986 2009-05-06 Simon Goldschmidt
987 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
988 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
990 2009-05-05 Simon Goldschmidt
991 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
994 2009-05-04 Simon Goldschmidt
995 * init.c: snmp was not initialized in lwip_init()
997 2009-05-04 Frédéric Bernon
998 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1000 2009-05-03 Simon Goldschmidt
1001 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1002 (and unsent->next == NULL)
1004 2009-05-02 Simon Goldschmidt
1005 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1006 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1008 2009-05-02 Simon Goldschmidt
1009 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1011 2009-05-01 Simon Goldschmidt
1012 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1014 2009-05-01 Simon Goldschmidt
1015 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1017 2009-04-29 Frédéric Bernon
1018 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1019 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1020 of broadcast packets even when this option wasn't set. Port maintainers
1021 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1022 If you want this option also filter broadcast on recv operations, you also
1023 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1025 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1026 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1027 DHCP/AUTOIP cooperation
1029 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1030 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1031 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1032 right place in tcp_output and tcp_rexmit).
1034 2009-04-25 Simon Goldschmidt
1035 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1036 when debugging": memp_sizes contained the wrong sizes (including sanity
1037 regions); memp pools for MEM_USE_POOLS were too small
1039 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1040 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1041 behavior, with with ip address string not ended by a '\0', a space or a
1044 2009-04-19 Simon Goldschmidt
1045 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1046 pcb->err is called, not pcb->connected (with an error code).
1048 2009-04-19 Simon Goldschmidt
1049 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1050 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1052 2009-04-19 Simon Goldschmidt
1053 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1054 in the header pbuf, not the data pbuf)
1056 2009-04-18 Simon Goldschmidt
1057 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1059 2009-04-15 Simon Goldschmidt
1060 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1062 2009-04-15 Simon Goldschmidt
1063 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1065 2009-04-15 Simon Goldschmidt
1066 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1067 ip_hinted_output() (for smaller code mainly)
1069 2009-04-15 Simon Goldschmidt
1070 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1072 2009-04-15 Simon Goldschmidt
1073 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1074 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1075 is big enough in dhcp_start
1077 2009-04-15 Simon Goldschmidt
1078 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1080 2009-04-15 Simon Goldschmidt
1081 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1083 2009-04-15 Simon Goldschmidt
1084 * sockets.c: bug #26121: set_errno can be overridden
1086 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1087 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1090 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1091 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1094 2009-03-31 Kieran Mansley
1095 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1096 updates are calculated and sent (BUG20515)
1098 * tcp_in.c: cope with SYN packets received during established states,
1099 and retransmission of initial SYN.
1101 * tcp_out.c: set push bit correctly when tcp segments are merged
1103 2009-03-27 Kieran Mansley
1104 * tcp_out.c set window correctly on probes (correcting change made
1107 2009-03-26 Kieran Mansley
1108 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1109 connections where no reset required (bug #25622)
1111 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1114 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1115 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1116 too small depending on MEM_ALIGNMENT
1118 2009-02-16 Simon Goldschmidt
1119 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1120 converted size argument of netconn_write to 'size_t'
1122 2009-02-16 Simon Goldschmidt
1123 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1124 by moving accept callback function pointer to TCP_PCB_COMMON
1126 2009-02-12 Simon Goldschmidt
1127 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1130 2009-02-11 Simon Goldschmidt
1131 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1133 2009-02-11 Simon Goldschmidt
1134 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1135 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1137 2009-02-10 Simon Goldschmidt
1138 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1139 Accepts_pending is decrease on a corresponding listen pcb when a connection
1140 in state SYN_RCVD is close.
1142 2009-01-28 Jonathan Larmour
1143 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1146 2008-12-19 Simon Goldschmidt
1147 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1149 2008-12-10 Tamas Somogyi, Frédéric Bernon
1150 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1151 port uses deleted netbuf.
1153 2008-10-18 Simon Goldschmidt
1154 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1157 2008-10-15 Simon Goldschmidt
1158 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1159 by packing the struct ip_reass_helper.
1161 2008-10-03 David Woodhouse, Jonathan Larmour
1162 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1164 2008-10-02 Jonathan Larmour
1165 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1166 padding is included.
1168 2008-09-30 Jonathan Larmour
1169 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1170 assertion check that addrlen isn't NULL.
1172 2008-09-30 Jonathan Larmour
1173 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1175 2008-08-26 Simon Goldschmidt
1176 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1177 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1179 2008-08-14 Simon Goldschmidt
1180 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1181 tcp_close returns != ERR_OK)
1183 2008-07-08 Frédéric Bernon
1184 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1185 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1187 2008-06-24 Jonathan Larmour
1188 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1189 if tcp_seg_copy fails.
1191 2008-06-17 Simon Goldschmidt
1192 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1193 and created defines for swapping bytes and folding u32 to u16.
1195 2008-05-30 Kieran Mansley
1196 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1197 rather than rcv_ann_wnd when deciding if packets are in-window.
1198 Contributed by <arasmussen@consultant.datasys.swri.edu>
1200 2008-05-30 Kieran Mansley
1201 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1202 passing as function pointers when MEM_LIBC_MALLOC is defined.
1204 2008-05-09 Jonathan Larmour
1205 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1206 stop it being treated as a fatal error.
1208 2008-04-15 Simon Goldschmidt
1209 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1212 2008-03-27 Simon Goldschmidt
1213 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1214 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1215 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1216 or heap memory from interrupt context
1218 2008-03-26 Simon Goldschmidt
1219 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1220 host sent a zero mss as TCP option.
1227 2008-03-10 Jonathan Larmour
1228 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1229 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1231 2008-01-22 Frédéric Bernon
1232 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1233 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1235 2008-01-14 Frédéric Bernon
1236 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1237 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1238 tcp_recv callback (see rawapi.txt).
1240 2008-01-14 Frédéric Bernon, Marc Chaland
1241 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1243 2008-01-12 Frédéric Bernon
1244 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1245 netconn::sem per netconn::op_completed like suggested for the task #7490
1246 "Add return value to sys_mbox_post".
1248 2008-01-12 Frédéric Bernon
1249 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1250 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1251 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1253 2008-01-10 Frédéric Bernon
1254 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1255 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1256 "blocking" ("block" parameter = 1).
1258 2008-01-10 Frédéric Bernon
1259 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1260 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1261 "Add return value to sys_mbox_post".
1263 2008-01-05 Frédéric Bernon
1264 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1265 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1266 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1267 indicate the number of pointers query by the mailbox. There is three defines
1268 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1269 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1270 parameter in your implementation, but to ignore it to keep the previous behavior.
1271 The new sys_mbox_trypost function return a value to know if the mailbox is
1272 full or if the message is posted. Take a look to sys_arch.txt for more details.
1273 This new function is used in tcpip_input (so, can be called in an interrupt
1274 context since the function is not blocking), and in recv_udp and recv_raw.
1276 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1277 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1278 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1279 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1280 documentation in the rawapi.txt file.
1282 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1283 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1285 2007-12-31 Frédéric Bernon, Luca Ceresoli
1286 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1287 in autoip". The change in etharp_raw could be removed, since all calls to
1288 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1289 wrong in the future.
1291 2007-12-30 Frédéric Bernon, Tom Evans
1292 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1293 Filtering" reported by Tom Evans.
1295 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1296 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1297 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1298 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1299 keep accepting new connections.
1301 2007-12-13 Frédéric Bernon
1302 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1303 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1305 2007-12-12 Frédéric Bernon
1306 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1307 are the one which have ram usage.
1309 2007-12-05 Frédéric Bernon
1310 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1311 set of variables (=0) or a local one (=1). In this last case, your port should
1312 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1313 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1315 2007-12-03 Simon Goldschmidt
1316 * ip.c: ip_input: check if a packet is for inp first before checking all other
1317 netifs on netif_list (speeds up packet receiving in most cases)
1319 2007-11-30 Simon Goldschmidt
1320 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1321 UDP: move a (connected) pcb selected for input to the front of the list of
1322 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1325 2007-11-28 Simon Goldschmidt
1326 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1328 2007-11-25 Simon Goldschmidt
1329 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1332 2007-11-24 Simon Goldschmidt
1333 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1334 to the new file netdb.c; included lwip_getaddrinfo.
1336 2007-11-21 Simon Goldschmidt
1337 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1338 based on the MTU of the netif used to send. Enabled by default. Disable by
1339 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1341 2007-11-19 Frédéric Bernon
1342 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1343 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1344 copy dns payload to parse the response), return an error if there is no place
1345 for a new query, and fix some minor problems.
1347 2007-11-16 Simon Goldschmidt
1348 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1349 removed files: core/inet.c, core/inet6.c
1350 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1351 inet and chksum part; changed includes in all lwIP files as appropriate
1353 2007-11-16 Simon Goldschmidt
1354 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1355 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1356 (gethostbyname/gethostbyname_r).
1358 2007-11-15 Jim Pettinato, Frédéric Bernon
1359 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1360 requests with RAW api interface. Initialization is done in lwip_init() with
1361 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1362 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1363 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1364 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1365 list with points to improve.
1367 2007-11-06 Simon Goldschmidt
1368 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1369 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1370 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1372 2007-11-06 Simon Goldschmidt
1373 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1374 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1375 implementation from netconn api applications.
1377 2007-11-03 Frédéric Bernon
1378 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1379 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1380 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1381 it. This is a first release which have to be improve for TCP. Note it used the
1382 netconn::recv_avail which need to be more "thread-safe" (note there is already
1383 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1385 2007-11-01 Frédéric Bernon, Marc Chaland
1386 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1387 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1388 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1389 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1390 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1392 2007-10-24 Frédéric Bernon
1393 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1394 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1395 some code (like we have talk in "patch #5919 : Create compile switch to remove
1396 select code"), but it could be done later.
1398 2007-10-08 Simon Goldschmidt
1399 * many files: Changed initialization: many init functions are not needed any
1400 more since we now rely on the compiler initializing global and static
1403 2007-10-06 Simon Goldschmidt
1404 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1405 to enqueue the received pbufs so that multiple packets can be reassembled
1406 simultaneously and no static reassembly buffer is needed.
1408 2007-10-05 Simon Goldschmidt
1409 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1410 all netifs (or ports) can use it.
1412 2007-10-05 Frédéric Bernon
1413 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1414 common function to reduce a little bit the footprint (for all functions using
1415 only the "netif" parameter).
1417 2007-10-03 Frédéric Bernon
1418 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1419 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1420 a little bit the footprint (for all functions using only the "netif" parameter).
1422 2007-09-15 Frédéric Bernon
1423 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1424 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1425 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1426 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1428 2007-09-10 Frédéric Bernon
1429 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1430 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1431 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1432 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1433 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1434 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1435 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1436 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1437 when it's queried (any direct call to "sysuptime" is changed by a call to
1438 snmp_get_sysuptime).
1440 2007-09-09 Frédéric Bernon, Bill Florac
1441 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1442 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1443 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1444 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1445 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1446 the next query message to receive the matching multicast streams).
1448 2007-09-08 Frédéric Bernon
1449 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1450 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1451 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1452 Enable to access to these fields with LWIP_TCP=0.
1454 2007-09-05 Frédéric Bernon
1455 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1456 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1457 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1458 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1459 help to reduce footprint, and to reduce "visibility" on the Internet.
1461 2007-09-05 Frédéric Bernon, Bill Florac
1462 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1463 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1464 parameters have to be provided: a task name, and a task stack size. For this
1465 one, since it's platform dependant, you could define the best one for you in
1466 your lwipopts.h. For port maintainers, you can just add these new parameters
1467 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1470 2007-09-05 Frédéric Bernon
1471 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1472 inside init.c for task #7142 "Sanity check user-configurable values".
1474 2007-09-04 Frédéric Bernon, Bill Florac
1475 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1476 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1477 value). It will avoid potential fragmentation problems, use a counter to know
1478 how many times a group is used on an netif, and free it when all applications
1479 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1480 check if LWIP_IGMP!=0).
1482 2007-09-03 Frédéric Bernon
1483 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1484 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1485 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1486 and/or the "interface" field (for netconn layer), for join/leave operations.
1487 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1488 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1490 2007-08-30 Frédéric Bernon
1491 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1492 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1493 with other API (application based on raw API, or future "socket2" API). Ports
1494 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1496 2007-08-30 Frédéric Bernon, Jonathan Larmour
1497 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1498 user-configurable values".
1500 2007-08-29 Frédéric Bernon
1501 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1502 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1503 spirit than the others modules. Modify some IGMP debug traces.
1505 2007-08-29 Frédéric Bernon
1506 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1507 Add lwip_init function to regroup all modules initializations, and to provide
1508 a place to add code for task #7142 "Sanity check user-configurable values".
1509 Ports maintainers should remove direct initializations calls from their code,
1510 and add init.c in their makefiles. Note that lwip_init() function is called
1511 inside tcpip_init, but can also be used by raw api users since all calls are
1512 disabled when matching options are disabled. Also note that their is new options
1513 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1515 2007-08-26 Marc Boucher
1516 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1517 since they can under certain circumstances be called with an invalid conn
1518 pointer after the connection has been closed (and conn has been freed).
1520 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1521 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1522 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1524 2007-08-22 Frédéric Bernon
1525 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1526 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1528 2007-08-22 Frédéric Bernon
1529 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1530 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1531 name is tcpip_input (we keep the name of 1.2.0 function).
1533 2007-08-17 Jared Grubb
1534 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1535 settings into new memp_std.h and optional user file lwippools.h. This adds
1536 more dynamic mempools, and allows the user to create an arbitrary number of
1537 mempools for mem_malloc.
1539 2007-08-16 Marc Boucher
1540 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1541 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1542 close the connection.
1544 2007-08-16 Marc Boucher
1545 * sockets.c: lwip_accept(): check netconn_peer() error return.
1547 2007-08-16 Marc Boucher
1548 * mem.c, mem.h: Added mem_calloc().
1550 2007-08-16 Marc Boucher
1551 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1552 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1553 and starving other message types.
1554 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1556 2007-08-16 Marc Boucher
1557 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1558 type and flgs (later renamed to flags).
1559 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1560 Improved lwip_recvfrom(). TCP push now propagated.
1562 2007-08-16 Marc Boucher
1563 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1566 2007-08-16 Marc Boucher
1567 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1568 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1569 Added PPPoE support and various PPP improvements.
1571 2007-07-25 Simon Goldschmidt
1572 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1573 making netbuf_copy_partial use this function.
1575 2007-07-25 Simon Goldschmidt
1576 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1577 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1580 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1581 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1582 a link callback in the netif struct, and functions to handle it. Be carefull
1583 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1584 if you want to be sure to be compatible with future changes...
1586 2007-06-30 Frédéric Bernon
1587 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1589 2007-06-21 Simon Goldschmidt
1590 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1591 LWIP_AUTOIP =0 and =1 to remove redundant code.
1593 2007-06-21 Simon Goldschmidt
1594 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1595 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1596 heap. This both prevents memory fragmentation and gives a higher speed
1597 at the cost of more memory consumption. Turned off by default.
1599 2007-06-21 Simon Goldschmidt
1600 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1601 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1602 int to be able to send a bigger buffer than 64K with one time (mainly
1603 used from lwip_send).
1605 2007-06-21 Simon Goldschmidt
1606 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1607 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1609 2007-06-21 Simon Goldschmidt
1610 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1611 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1612 changes on low memory or empty send-buffer.
1614 2007-06-18 Simon Goldschmidt
1615 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1616 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1617 used for ethernet and struct eth_addr already had a defined length of 6).
1619 2007-06-17 Simon Goldschmidt
1620 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1621 to disable UDP checksum generation on transmit.
1623 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1624 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1625 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1626 this macro to check "conn" parameter in api_msg.c functions.
1628 2007-06-11 Simon Goldschmidt
1629 * sockets.c, sockets.h: Added UDP lite support for sockets
1631 2007-06-10 Simon Goldschmidt
1632 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1633 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1636 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1637 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1638 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1639 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1640 (see TODO mark in the source code).
1642 2007-06-09 Simon Goldschmidt
1643 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1644 etharp_output() to match netif->output so etharp_output() can be used
1645 directly as netif->output to save one function call.
1647 2007-06-08 Simon Goldschmidt
1648 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1649 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1650 added initialization of those to ethernetif, slipif and loopif.
1652 2007-05-18 Simon Goldschmidt
1653 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1654 (defaulting to off for now) that can be set to 0 to send fragmented
1655 packets by passing PBUF_REFs down the stack.
1657 2007-05-23 Frédéric Bernon
1658 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1659 connections, such present in patch #5959.
1661 2007-05-23 Frédéric Bernon
1662 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1663 code in only one part...
1665 2007-05-18 Simon Goldschmidt
1666 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1667 elements to overflow. This is achieved by adding some bytes before and after
1668 each pool element (increasing their size, of course), filling them with a
1669 prominent value and checking them on freeing the element.
1670 Set it to 2 to also check every element in every pool each time memp_malloc()
1671 or memp_free() is called (slower but more helpful).
1673 2007-05-10 Simon Goldschmidt
1674 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1675 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1678 2007-05-11 Frédéric Bernon
1679 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1680 Include a function pointer instead of a table index in the message to reduce
1681 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1682 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1684 2007-05-10 Simon Goldschmidt
1685 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1686 \ extern "C" {' in all header files. Now you can write your application using
1687 the lwIP stack in C++ and simply #include the core files. Note I have left
1688 out the netif/ppp/*h header files for now, since I don't know which files are
1689 included by applications and which are for internal use only.
1691 2007-05-09 Simon Goldschmidt
1692 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1693 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1694 situations where some compilers might inline the copy and save a function
1695 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1697 2007-05-08 Simon Goldschmidt
1698 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1699 to be overriden in case the C-library malloc implementation is not protected
1700 against concurrent access.
1702 2007-05-04 Simon Goldschmidt (Atte Kojo)
1703 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1704 multiple packets to the same host.
1706 2007-05-04 Frédéric Bernon, Jonathan Larmour
1707 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1708 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1709 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1710 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1711 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1712 these fields are now renamed "addr" & "port".
1714 2007-04-11 Jonathan Larmour
1715 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1716 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1717 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1718 by the port in sys_arch.h if desired.
1720 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1721 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1722 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1723 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1725 2007-04-05 Frédéric Bernon
1726 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1728 2007-04-04 Simon Goldschmidt
1729 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1730 use this for and architecture-independent form to tell the compiler you intentionally
1731 are not using this variable. Can be overriden in cc.h.
1733 2007-03-28 Frédéric Bernon
1734 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1735 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1736 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1737 It will be used by DHCP to register a client hostname, but can also be use when you call
1740 2007-03-28 Frédéric Bernon
1741 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1742 initialize a network interface's flag with. It tell this interface is an ethernet
1743 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1744 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1746 2007-03-26 Frédéric Bernon, Jonathan Larmour
1747 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1748 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1749 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1750 is done in tcpip_init function.
1752 2007-03-22 Frédéric Bernon
1753 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1754 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1755 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1756 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1757 but never used. Fix msg_in.c with the correct #if test for a stat display.
1759 2007-03-21 Kieran Mansley
1760 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1761 Provides callback on netif up/down state change.
1763 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1764 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1765 ip.c, netif.h, tcpip.c, opt.h:
1766 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1767 filter per all network interfaces. Declare a new function in netif to enable to
1768 control the MAC filter (to reduce lwIP traffic processing).
1770 2007-03-11 Frédéric Bernon
1771 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1772 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1773 unless you know what you're doing (default are RFC1122 compliant). Note
1774 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1776 2007-03-08 Frédéric Bernon
1777 * tcp.h: Keepalive values can be configured at compile time, but don't change
1778 this unless you know what you're doing (default are RFC1122 compliant).
1780 2007-03-08 Frédéric Bernon
1781 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1782 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1783 on UDP sockets/netconn.
1785 2007-03-08 Simon Goldschmidt
1786 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1788 2007-03-06 Frédéric Bernon
1789 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1790 Implement SO_RCVTIMEO on UDP sockets/netconn.
1792 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1793 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1794 on the stack and remove the API msg type from memp
1796 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1797 * sockets.h, sockets.c: Move socket initialization to new
1798 lwip_socket_init() function.
1799 NOTE: this changes the API with ports. Ports will have to be
1800 updated to call lwip_socket_init() now.
1802 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1803 * api_lib.c: Use memcpy in netbuf_copy_partial.
1808 2008-03-17 Frédéric Bernon, Ed Kerekes
1809 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1810 some problems to fill the IP header on some targets, use now the
1811 ip.h macros to do it).
1813 2008-03-13 Frédéric Bernon
1814 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1815 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1816 TCP connection caused a crash. Note that using (lwip_)recvfrom
1817 like this is a bit slow and that using (lwip)getpeername is the
1818 good lwip way to do it (so, using recv is faster on tcp sockets).
1820 2008-03-12 Frédéric Bernon, Jonathan Larmour
1821 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1822 recv_raw() does not consume data", and the ping sample (with
1823 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1824 returned the IP payload, without the IP header).
1826 2008-03-04 Jonathan Larmour
1827 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1828 and/or warnings on some systems where mem_size_t and size_t differ.
1829 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1831 2008-03-04 Kieran Mansley (contributions by others)
1832 * Numerous small compiler error/warning fixes from contributions to
1833 mailing list after 1.3.0 release candidate made.
1835 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1836 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1838 2008-01-15 Kieran Mansley
1839 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1840 prevented from sending by a small send window, not just a zero
1843 2008-01-09 Jonathan Larmour
1844 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1845 conflict with Linux system headers.
1847 2008-01-06 Jonathan Larmour
1848 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1849 address entirely on receiving a DHCPNAK, and restarting discovery.
1851 2007-12-21 Simon Goldschmidt
1852 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1853 is not protected" by using new macros for interlocked access to modify/test
1854 netconn->recv_avail.
1856 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1857 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1859 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1860 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1861 of silly window avoidance and prevent lwIP from shrinking the window)
1863 2007-12-04 Simon Goldschmidt
1864 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1865 data packet was lost): add assert that all segment lists are empty in
1866 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1867 state from LAST_ACK in tcp_process
1869 2007-12-02 Simon Goldschmidt
1870 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1871 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1872 has to be set to 0 in lwipopts.h
1874 2007-12-02 Simon Goldschmidt
1875 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1876 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1877 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1878 This is a fix for thread-safety and allocates all items needed for a netconn
1879 when the netconn is created.
1881 2007-11-30 Simon Goldschmidt
1882 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1883 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1884 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1885 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1887 2007-11-27 Simon Goldschmidt
1888 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1889 letting ip_route only use netifs that are up.
1891 2007-11-27 Simon Goldschmidt
1892 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1893 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1894 sockets block most operations once they have seen a fatal error.
1896 2007-11-27 Simon Goldschmidt
1897 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1898 netif to send as an argument (to be able to send on netifs that are down).
1900 2007-11-26 Simon Goldschmidt
1901 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1904 2007-11-21 Simon Goldschmidt
1905 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1906 Fixed the nagle algorithm; nagle now also works for all raw API applications
1907 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1909 2007-11-12 Frédéric Bernon
1910 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1911 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1912 context in do_getaddr.
1914 2007-11-10 Simon Goldschmidt
1915 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1916 happen any time). Now the packet simply isn't enqueued when out of memory.
1918 2007-11-01 Simon Goldschmidt
1919 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1920 TCP_MSS if that is smaller) as long as no MSS option is received from the
1923 2007-11-01 Simon Goldschmidt
1924 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1925 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1926 sending our configured TCP_MSS instead of the one received).
1928 2007-11-01 Simon Goldschmidt
1929 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1930 calculated based on the configured TCP_MSS, not on the MSS option received
1933 2007-10-09 Simon Goldschmidt
1934 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1935 short and also was generated wrong if checksum coverage != tot_len;
1936 receive: checksum was calculated wrong if checksum coverage != tot_len
1938 2007-10-08 Simon Goldschmidt
1939 * mem.c: lfree was not updated in mem_realloc!
1941 2007-10-07 Frédéric Bernon
1942 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1943 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1944 this change cause an API breakage for netconn_addr, since a parameter
1945 type change. Any compiler should cause an error without any changes in
1946 yours netconn_peer calls (so, it can't be a "silent change"). It also
1947 reduce a little bit the footprint for socket layer (lwip_getpeername &
1948 lwip_getsockname use now a common lwip_getaddrname function since
1949 netconn_peer & netconn_addr have the same parameters).
1951 2007-09-20 Simon Goldschmidt
1952 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1953 by checking tcp_tw_pcbs also
1955 2007-09-19 Simon Goldschmidt
1956 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
1958 2007-09-15 Mike Kleshov
1959 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
1961 2007-09-06 Frédéric Bernon
1962 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
1963 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
1964 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
1965 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
1967 2007-08-30 Frédéric Bernon
1968 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
1969 and fix some coding style.
1971 2007-08-28 Frédéric Bernon
1972 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
1973 kind of packets. These packets are considered like Ethernet packets (payload
1974 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
1975 are considered like IP packets (payload pointing to iphdr).
1977 2007-08-27 Frédéric Bernon
1978 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
1979 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
1980 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
1982 2007-08-24 Kieran Mansley
1983 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
1984 compiler (Paradigm C++)
1986 2007-08-09 Frédéric Bernon, Bill Florac
1987 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
1988 Introduce IGMP_STATS to centralize statistics management.
1990 2007-08-09 Frédéric Bernon, Bill Florac
1991 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
1992 packet on a udp pcb binded on an netif's IP address, and not on "any".
1994 2007-08-09 Frédéric Bernon, Bill Florac
1995 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
1996 This is mainly on using lookup/lookfor, and some coding styles...
1998 2007-07-26 Frédéric Bernon (and "thedoctor")
1999 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2001 2007-07-25 Simon Goldschmidt
2002 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2003 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2004 (tcp_output is called again later from tcp timers).
2006 2007-07-25 Simon Goldschmidt
2007 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2008 copy_from_pbuf, which illegally modified the given pbuf.
2010 2007-07-25 Simon Goldschmidt
2011 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2012 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2014 2007-07-24 Simon Goldschmidt
2015 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2016 correct state (must be CLOSED).
2018 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2019 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2020 allocation. It now returns NULL.
2022 2007-07-13 Frédéric Bernon
2023 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2026 2007-07-13 Frédéric Bernon
2027 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2028 because current code doesn't follow rawapi.txt documentation.
2030 2007-07-13 Kieran Mansley
2031 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2032 out of sequence processing of received packets
2034 2007-07-03 Simon Goldschmidt
2035 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2036 assumption is made that this pbuf is in one piece (i.e. not chained). These
2037 assumptions clash with the possibility of converting to fully pool-based
2038 pbuf implementations, where PBUF_RAM pbufs might be chained.
2040 2007-07-03 Simon Goldschmidt
2041 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2042 when closing tcp netconns: removed conn->sem, less context switches when
2043 closing, both netconn_close and netconn_delete should safely close tcp
2046 2007-07-02 Simon Goldschmidt
2047 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2048 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2049 to cache ARP table indices with each pcb instead of single-entry cache for
2052 2007-07-02 Simon Goldschmidt
2053 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2054 warnings when assigning to smaller types.
2056 2007-06-28 Simon Goldschmidt
2057 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2059 2007-06-28 Simon Goldschmidt
2060 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2061 a segment contained chained pbufs)
2063 2007-06-28 Frédéric Bernon
2064 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2065 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2066 possible to define this macro in your own lwipopts.h to always use C library's
2067 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2069 2007-06-28 Frédéric Bernon
2070 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2071 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2072 in api_lib/api_msg (use pointers and not type with table, etc...)
2074 2007-06-26 Simon Goldschmidt
2075 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2077 2007-06-25 Simon Goldschmidt
2078 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2079 for udp packets with no matching pcb.
2081 2007-06-25 Simon Goldschmidt
2082 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2083 could get udp input packets if the remote side matched.
2085 2007-06-13 Simon Goldschmidt
2086 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2087 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2089 2007-06-13 Simon Goldschmidt
2090 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2091 -> netconn_new_..() does not allocate a new connection for unsupported
2094 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2095 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2096 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2098 2007-06-13 Frédéric Bernon, Matthias Weisser
2099 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2100 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2101 some macro names collision with some OS macros.
2103 2007-06-11 Simon Goldschmidt
2104 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2105 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2106 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2109 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2110 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2111 where TCP flags wasn't initialized in tcp_keepalive.
2113 2007-06-03 Simon Goldschmidt
2114 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2115 registered, p->payload was modified without modifying p->len if sending
2116 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2118 2007-06-03 Simon Goldschmidt
2119 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2120 re-used the input pbuf even if that didn't have enough space to include the
2121 link headers. Now the space is tested and a new pbuf is allocated for the
2122 echo response packet if the echo request pbuf isn't big enough.
2124 2007-06-01 Simon Goldschmidt
2125 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2127 2007-05-23 Frédéric Bernon
2128 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2129 allocated by do_listen if success) and netconn_accept errors handling. In
2130 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2131 by ASSERT, except for netconn_delete.
2133 2007-05-23 Frédéric Bernon
2134 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2135 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2136 directly close the recvmbox).
2138 2007-05-22 Simon Goldschmidt
2139 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2140 bound but unconnected (and non-listening) tcp_pcbs.
2142 2007-05-22 Frédéric Bernon
2143 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2144 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2145 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2146 like "sys_timeout" in their application threads.
2148 2007-05-22 Frédéric Bernon
2149 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2150 which parameters are used by which do_xxx function, and to avoid "misusing"
2151 parameters (patch #5938).
2153 2007-05-22 Simon Goldschmidt
2154 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2155 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2156 is only 8 bits wide. This affects the api, as there, the protocol was
2159 2007-05-18 Simon Goldschmidt
2160 * memp.c: addition to patch #5913: smaller pointer was returned but
2161 memp_memory was the same size -> did not save memory.
2163 2007-05-16 Simon Goldschmidt
2164 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2167 2007-05-16 Simon Goldschmidt
2168 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2169 as the one of the netif used for sending to prevent sending from old
2170 addresses after a netif address gets changed (partly fixes bug #3168).
2172 2007-05-16 Frédéric Bernon
2173 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2174 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2175 tcpip_init) because we have to be sure that network interfaces are already
2176 added (mac filter is updated only in igmp_init for the moment).
2178 2007-05-16 Simon Goldschmidt
2179 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2180 into sys_arch_sem_wait calls to prevent timers from running while waiting
2181 for the heap. This fixes bug #19167.
2183 2007-05-13 Simon Goldschmidt
2184 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2185 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2188 2007-05-07 Simon Goldschmidt
2189 * mem.c: Another attempt to fix bug #17922.
2191 2007-05-04 Simon Goldschmidt
2192 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2193 implementation so that it can be reused (don't allocate the target
2194 pbuf inside pbuf_copy()).
2196 2007-05-04 Simon Goldschmidt
2197 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2198 to save a little RAM (next pointer of memp is not used while not in pool).
2201 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2204 2007-04-23 Simon Goldschmidt
2205 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2206 in NULL reference for incoming TCP packets". Loopif has to be configured
2207 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2208 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2209 putting packets on a list that is fed to the stack by calling loopif_poll()
2210 (single-thread / NO_SYS / polling environment where e.g.
2211 netif->input() = ip_input).
2213 2007-04-17 Jonathan Larmour
2214 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2215 the difference between two u16_t's.
2216 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2217 MEMP_NUM_NETCONN in sockets.c right now.
2219 2007-04-12 Jonathan Larmour
2220 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2222 2007-04-12 Kieran Mansley
2223 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2224 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2226 2007-04-11 Simon Goldschmidt
2227 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2228 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2229 pbuf.c: removed functions no needed any more (by etharp).
2231 2007-04-11 Kieran Mansley
2232 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2233 "Constant is long" warnings with 16bit compilers. Contributed by
2234 avatar@mmlab.cse.yzu.edu.tw
2236 2007-04-05 Frédéric Bernon, Jonathan Larmour
2237 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2238 the mailbox is active". Now, the post is only done during a connect, and do_send,
2239 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2241 2007-04-03 Frédéric Bernon
2242 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2243 packets. See patch #5834.
2245 2007-03-30 Frédéric Bernon
2246 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2247 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2249 2007-03-30 Frédéric Bernon
2250 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2251 others environment defines (these were too "generic").
2253 2007-03-28 Frédéric Bernon
2254 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2255 result and can cause a crash. lwip_send now check netbuf_ref result.
2257 2007-03-28 Simon Goldschmidt
2258 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2259 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2260 defined. This is the way it should have been already (looking at
2263 2007-03-28 Kieran Mansley
2264 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2265 IP and TCP headers *and* physical link headers
2267 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2268 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2269 to send some garbage. It is not a definitive solution, but the patch does solve
2270 the problem for most cases.
2272 2007-03-22 Frédéric Bernon
2273 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2275 2007-03-22 Frédéric Bernon
2276 * api_lib.c: somes resources couldn't be freed if there was errors during
2277 netconn_new_with_proto_and_callback.
2279 2007-03-22 Frédéric Bernon
2280 * ethernetif.c: update netif->input calls to check return value. In older ports,
2281 it's a good idea to upgrade them, even if before, there could be another problem
2282 (access to an uninitialized mailbox).
2284 2007-03-21 Simon Goldschmidt
2285 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2286 by casting to unsigned).
2288 2007-03-21 Frédéric Bernon
2289 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2290 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2291 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2292 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2293 faster and more reliable communication between api_lib and tcpip.
2295 2007-03-21 Frédéric Bernon
2296 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2298 2007-03-21 Frédéric Bernon
2299 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2301 2007-03-21 Kieran Mansley
2302 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2305 2007-03-21 Kieran Mansley
2306 * Fix all uses of pbuf_header to check the return value. In some
2307 cases just assert if it fails as I'm not sure how to fix them, but
2308 this is no worse than before when they would carry on regardless
2311 2007-03-21 Kieran Mansley
2312 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2313 comment out missing header include in icmp.c
2315 2007-03-20 Frédéric Bernon
2316 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2317 synchronized with memp.h.
2319 2007-03-20 Frédéric Bernon
2320 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2321 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2322 network interfaces. Also fix a compiler warning.
2324 2007-03-20 Kieran Mansley
2325 * udp.c: Only try and use pbuf_header() to make space for headers if
2326 not a ROM or REF pbuf.
2328 2007-03-19 Frédéric Bernon
2329 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2332 2007-03-19 Frédéric Bernon
2333 * Remove unimplemented "memp_realloc" function from memp.h.
2335 2007-03-11 Simon Goldschmidt
2336 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2339 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2340 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2341 (missing `const' qualifier in socket functions), to get more compatible to
2342 standard POSIX sockets.
2344 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2345 * sockets.c: Add asserts inside bind, connect and sendto to check input
2346 parameters. Remove excessive set_errno() calls after get_socket(), because
2347 errno is set inside of get_socket(). Move last sock_set_errno() inside
2350 2007-03-09 Simon Goldschmidt
2351 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2352 was allocated too small.
2354 2007-03-06 Simon Goldschmidt
2355 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2356 the stack from concurrent access.
2358 2007-03-06 Frédéric Bernon, Dmitry Potapov
2359 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2360 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2362 2007-03-06 Simon Goldschmidt
2363 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2364 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2366 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2367 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2368 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2369 Allow to do ARP processing for incoming packets inside tcpip_thread
2370 (protecting ARP layer against concurrent access). You can also disable
2371 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2372 Older ports have to use tcpip_ethinput.
2374 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2375 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2376 from pointer target type"
2378 2007-03-05 Frédéric Bernon
2379 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2380 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2382 2007-03-04 Frédéric Bernon
2383 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2386 2007-03-04 Frédéric Bernon
2387 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2389 The api_msg struct stay on the stack (not moved to netconn struct).
2391 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2392 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2393 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2394 Also fixed cast warning in pbuf_alloc()
2396 2007-03-04 Simon Goldschmidt
2397 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2398 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2400 2007-03-03 Frédéric Bernon
2401 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2402 It is static, and never used in udp.c except udp_init().
2404 2007-03-02 Simon Goldschmidt
2405 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2406 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2407 initialized before tcpip_thread is running (e.g. before OS is started)
2409 2007-03-02 Frédéric Bernon
2410 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2413 2007-02-28 Kieran Mansley
2414 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2415 outside the region of the pbuf by pbuf_header()
2417 2007-02-28 Kieran Mansley
2418 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2419 when supplied timeout is also non-zero
2423 2006-12-05 Leon Woestenberg
2424 * CHANGELOG: Mention STABLE-1.2.0 release.
2428 2006-12-01 Christiaan Simons
2429 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2430 Note this is a workaround. Currently I have no other options left.
2432 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2433 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2434 to include/lwip/opt.h.
2435 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2436 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2437 * opt.h: Add above new options.
2439 2006-08-18 Christiaan Simons
2440 * tcp_{in,out}.c: added SNMP counters.
2441 * ipv4/ip.c: added SNMP counters.
2442 * ipv4/ip_frag.c: added SNMP counters.
2444 2006-08-08 Christiaan Simons
2445 * etharp.{c,h}: added etharp_find_addr() to read
2446 (stable) ethernet/IP address pair from ARP table
2448 2006-07-14 Christiaan Simons
2449 * mib_structs.c: added
2450 * include/lwip/snmp_structs.h: added
2451 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2453 2006-07-06 Christiaan Simons
2454 * snmp/asn1_{enc,dec}.c added
2456 * snmp/msg_{in,out}.c added
2457 * include/lwip/snmp_asn1.h added
2458 * include/lwip/snmp_msg.h added
2459 * doc/snmp_agent.txt added
2461 2006-03-29 Christiaan Simons
2462 * inet.c, inet.h: Added platform byteswap support.
2463 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2464 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2468 2006-11-30 Christiaan Simons
2469 * dhcp.c: Fixed false triggers of request_timeout.
2471 2006-11-28 Christiaan Simons
2472 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2474 2006-10-11 Christiaan Simons
2475 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2476 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2477 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2478 identifier from 170 to 136 (bug #17574).
2480 2006-10-10 Christiaan Simons
2481 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2483 2006-08-17 Christiaan Simons
2484 * udp.c: Fixed bug #17200, added check for broadcast
2485 destinations for PCBs bound to a unicast address.
2487 2006-08-07 Christiaan Simons
2488 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2490 2006-06-27 Christiaan Simons
2491 * api_msg.c: Applied patch for cold case (bug #11135).
2492 In accept_function() ensure newconn->callback is always initialized.
2494 2006-06-15 Christiaan Simons
2495 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2496 facilitate printing of mem_size_t and u16_t statistics.
2498 2006-06-14 Christiaan Simons
2499 * api_msg.c: Applied patch #5146 to handle allocation failures
2500 in accept() by Kevin Lawson.
2502 2006-05-26 Christiaan Simons
2503 * api_lib.c: Removed conn->sem creation and destruction
2504 from netconn_write() and added sys_sem_new to netconn_new_*.
2508 2006-03-03 Christiaan Simons
2509 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2510 access and added pbuf_alloc() return value checks.
2512 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2513 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2514 now handled by the checksum routine properly.
2516 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2517 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2518 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2520 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2521 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2522 submitted by Mitrani Hiroshi.
2524 2005-12-15 Christiaan Simons
2525 * inet.c: Disabled the added summing routine to preserve code space.
2527 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2528 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2529 Added Curt McDowell's optimized checksumming routine for future
2530 inclusion. Need to create test case for unaliged, aligned, odd,
2531 even length combination of cases on various endianess machines.
2533 2005-12-09 Christiaan Simons
2534 * inet.c: Rewrote standard checksum routine in proper portable C.
2536 2005-11-25 Christiaan Simons
2537 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2538 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2539 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2541 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2542 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2543 routine by Peter Jolasson.
2544 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2546 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2547 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2548 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2550 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2551 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2553 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2554 * udp.c: UDP pcb->recv() was called even when it was NULL.
2558 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2559 * etharp.*: Disabled multiple packets on the ARP queue.
2560 This clashes with TCP queueing.
2562 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2563 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2564 Halved the ARP period, doubled the period counts.
2565 ETHARP_MAX_PENDING now should be at least 2. This prevents
2566 the counter from reaching 0 right away (which would allow
2567 too little time for ARP responses to be received).
2569 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2570 * dhcp.c: Decline messages were not multicast but unicast.
2571 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2572 Do not try hard to insert arbitrary packet's source address,
2573 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2574 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2575 querying an address will see it appear in the cache (DHCP could
2576 suffer from this when a server invalidly gave an in-use address.)
2577 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2578 comparing network addresses (identifiers), not the network masks
2580 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2581 IP address actually belongs to the network of the given interface.
2583 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2584 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2588 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2589 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2590 even if one is already pending, if the rcv_wnd is above a threshold
2591 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2592 delayed ACK in order to open the window if the stack is only receiving data.
2594 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2595 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2597 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2598 * etharp.c: Make sure the first pbuf queued on an ARP entry
2599 is properly ref counted.
2601 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2602 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2603 warnings about comparison.
2604 * pbuf.c: Stopped compiler complaining of empty if statement
2605 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2606 * tcp.c: Stopped compiler complaining of empty if statement
2607 when LWIP_DEBUGF() empty.
2608 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2609 * inet.c: Added a couple of casts to quiet the compiler.
2610 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2612 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2613 * inet.c: Made data types consistent in inet_ntoa().
2614 Added casts for return values of checksum routines, to pacify compiler.
2615 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2616 Small corrections to some debugging statements, to pacify compiler.
2618 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2619 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2620 * ethernetif.c Updated low_level_output() to match prototype for
2621 netif->linkoutput and changed low_level_input() similarly for consistency.
2622 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2623 of raw_recv() in raw.h and so avoid compiler error.
2624 * sockets.c: Added trivial (int) cast to keep compiler happier.
2625 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2631 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2632 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2633 your cc.h file defines this either 1 or 0. If non-defined,
2635 * .c: Added <string.h> and <errno.h> includes where used.
2636 * etharp.c: Made some array indices unsigned.
2638 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2639 * netif.*: Added netif_set_up()/down().
2640 * dhcp.c: Changes to restart program flow.
2642 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2643 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2644 single-pass lookup for different candidates. Should exploit locality.
2646 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2647 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2648 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2649 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2650 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2654 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2655 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2656 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2657 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2658 is to prefix the 14-bit Ethernet headers with two padding bytes.
2660 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2661 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2662 * etharp.c: Fixed the case where the packet that initiates the ARP request
2663 is not queued, and gets lost. Fixed the case where the packets destination
2664 address is already known; we now always queue the packet and perform an ARP
2671 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2672 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2673 * Fixed two possible NULL references in rare cases.
2679 * Fixed DHCP which did not include the IP address in DECLINE messages.
2683 * etharp.c has been hauled over a bit.
2689 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2690 * Packets sent from ARP queue had invalid source hardware address.
2694 * Pass-by ARP requests do now update the cache.
2698 * No longer dependent on ctype.h.
2699 * New socket options.
2700 * Raw IP pcb support.
2706 * Some debug formatters and casts fixed.
2707 * Numereous fixes in PPP.
2711 * DEBUGF now is LWIP_DEBUGF
2712 * pbuf_dechain() has been re-enabled.
2713 * Mentioned the changed use of CVS branches in README.
2719 * Fixed pool pbuf memory leak in pbuf_alloc().
2720 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2721 Reported by Savin Zlobec.
2723 * PBUF_POOL chains had their tot_len field not set for non-first
2724 pbufs. Fixed in pbuf_alloc().
2728 * Added PPP stack contributed by Marc Boucher
2732 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2734 * ARP queueuing now queues the latest packet instead of the first.
2735 This is the RFC recommended behaviour, but can be overridden in
2742 * TCP has been fixed to deal with the new use of the pbuf->ref
2745 * DHCP dhcp_inform() crash bug fixed.
2749 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2750 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2751 Implemented by David Haas.
2757 * The packet buffer implementation has been enhanced to support
2758 zero-copy and copy-on-demand for packet buffers which have their
2759 payloads in application-managed memory.
2760 Implemented by David Haas.
2762 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2763 if an outgoing packet can be directly sent on the link, or perform
2764 a copy-on-demand when necessary.
2766 The application can safely assume the packet is sent, and the RAM
2767 is available to the application directly after calling udp_send()
2768 or similar function.
2772 * ARP_QUEUEING should now correctly work for all cases, including
2774 Implemented by Leon Woestenberg.
2778 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2779 to a '0.0.0.0' IP address.
2781 * The packet buffer implementation is changed. The pbuf->ref counter
2782 meaning has changed, and several pbuf functions have been
2783 adapted accordingly.
2785 * netif drivers have to be changed to set the hardware address length field
2786 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2787 See the contrib/ports/c16x cs8900 driver as a driver example.
2789 * netif's have a dhcp field that must be initialized to NULL by the driver.
2790 See the contrib/ports/c16x cs8900 driver as a driver example.
2792 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2793 logged in CVS but have not been explained here.
2795 (0.5.3) Changes since version 0.5.2
2799 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2800 threads because it wasn't protected by semaphores.
2804 * struct ip_addr now packed.
2806 * The name of the time variable in arp.c has been changed to ctime
2807 to avoid conflicts with the time() function.
2809 (0.5.2) Changes since version 0.5.1
2813 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2817 * A bug in tcp_parseopt() could cause the stack to hang because of a
2818 malformed TCP option.
2820 * The address of new connections in the accept() function in the BSD
2821 socket library was not handled correctly.
2823 * pbuf_dechain() did not update the ->tot_len field of the tail.
2825 * Aborted TCP connections were not handled correctly in all
2830 * All protocol header structs are now packed.
2832 * The ->len field in the tcp_seg structure now counts the actual
2833 amount of data, and does not add one for SYN and FIN segments.
2835 (0.5.1) Changes since version 0.5.0
2839 * Possible to run as a user process under Linux.
2841 * Preliminary support for cross platform packed structs.
2843 * ARP timer now implemented.
2847 * TCP output queue length was badly initialized when opening
2850 * TCP delayed ACKs were not sent correctly.
2852 * Explicit initialization of BSS segment variables.
2854 * read() in BSD socket library could drop data.
2856 * Problems with memory alignment.
2858 * Situations when all TCP buffers were used could lead to
2861 * TCP MSS option wasn't parsed correctly.
2863 * Problems with UDP checksum calculation.
2865 * IP multicast address tests had endianess problems.
2867 * ARP requests had wrong destination hardware address.
2871 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2873 * A ->linkoutput() member was added to struct netif.
2875 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2877 * ntoh* macros are now null definitions for big endian CPUs.
2879 (0.5.0) Changes since version 0.4.2
2883 * Redesigned operating system emulation layer to make porting easier.
2885 * Better control over TCP output buffers.
2887 * Documenation added.
2891 * Locking issues in buffer management.
2893 * Bugfixes in the sequential API.
2895 * IP forwarding could cause memory leakage. This has been fixed.
2899 * Directory structure somewhat changed; the core/ tree has been
2902 (0.4.2) Changes since version 0.4.1
2906 * Experimental ARP implementation added.
2908 * Skeleton Ethernet driver added.
2910 * Experimental BSD socket API library added.
2914 * In very intense situations, memory leakage could occur. This has
2919 * Variables named "data" and "code" have been renamed in order to
2920 avoid name conflicts in certain compilers.
2922 * Variable++ have in appliciable cases been translated to ++variable
2923 since some compilers generate better code in the latter case.
2925 (0.4.1) Changes since version 0.4
2929 * TCP: Connection attempts time out earlier than data
2930 transmissions. Nagle algorithm implemented. Push flag set on the
2931 last segment in a burst.
2933 * UDP: experimental support for UDP-Lite extensions.
2937 * TCP: out of order segments were in some cases handled incorrectly,
2938 and this has now been fixed. Delayed acknowledgements was broken
2939 in 0.4, has now been fixed. Binding to an address that is in use
2940 now results in an error. Reset connections sometimes hung an
2941 application; this has been fixed.
2943 * Checksum calculation sometimes failed for chained pbufs with odd
2944 lengths. This has been fixed.
2946 * API: a lot of bug fixes in the API. The UDP API has been improved
2947 and tested. Error reporting and handling has been
2948 improved. Logical flaws and race conditions for incoming TCP
2949 connections has been found and removed.
2951 * Memory manager: alignment issues. Reallocating memory sometimes
2952 failed, this has been fixed.
2954 * Generic library: bcopy was flawed and has been fixed.
2958 * API: all datatypes has been changed from generic ones such as
2959 ints, to specified ones such as u16_t. Functions that return
2960 errors now have the correct type (err_t).
2962 * General: A lot of code cleaned up and debugging code removed. Many
2963 portability issues have been fixed.
2965 * The license was changed; the advertising clause was removed.
2969 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
2970 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
2973 (0.4) Changes since version 0.3.1
2975 * Memory management has been radically changed; instead of
2976 allocating memory from a shared heap, memory for objects that are
2977 rapidly allocated and deallocated is now kept in pools. Allocation
2978 and deallocation from those memory pools is very fast. The shared
2979 heap is still present but is used less frequently.
2981 * The memory, memory pool, and packet buffer subsystems now support
2982 4-, 2-, or 1-byte alignment.
2984 * "Out of memory" situations are handled in a more robust way.
2986 * Stack usage has been reduced.
2988 * Easier configuration of lwIP parameters such as memory usage,
2989 TTLs, statistics gathering, etc. All configuration parameters are
2990 now kept in a single header file "lwipopts.h".
2992 * The directory structure has been changed slightly so that all
2993 architecture specific files are kept under the src/arch
2996 * Error propagation has been improved, both in the protocol modules
2999 * The code for the RTXC architecture has been implemented, tested
3002 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3003 the Internet checksum modules.
3005 * Bugs related to porting between a 32-bit and a 16-bit architecture
3006 have been found and corrected.
3008 * The license has been changed slightly to conform more with the
3009 original BSD license, including the advertisement clause.
3011 (0.3.1) Changes since version 0.3
3013 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3014 RAM never returned the RAM when the pbuf was deallocated.
3016 * TCP congestion control, window updates and retransmissions did not
3017 work correctly. This has now been fixed.
3019 * Bugfixes in the API.
3021 (0.3) Changes since version 0.2
3023 * New and improved directory structure. All include files are now
3024 kept in a dedicated include/ directory.
3026 * The API now has proper error handling. A new function,
3027 netconn_err(), now returns an error code for the connection in
3030 * Improvements in the memory management subsystem. The system now
3031 keeps a pointer to the lowest free memory block. A new function,
3032 mem_malloc2() tries to allocate memory once, and if it fails tries
3033 to free some memory and retry the allocation.
3035 * Much testing has been done with limited memory
3036 configurations. lwIP now does a better job when overloaded.
3038 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3040 * Many bugfixes in the TCP code:
3042 - Fixed a bug in tcp_close().
3044 - The TCP receive window was incorrectly closed when out of
3045 sequence segments was received. This has been fixed.
3047 - Connections are now timed-out of the FIN-WAIT-2 state.
3049 - The initial congestion window could in some cases be too
3050 large. This has been fixed.
3052 - The retransmission queue could in some cases be screwed up. This
3055 - TCP RST flag now handled correctly.
3057 - Out of sequence data was in some cases never delivered to the
3058 application. This has been fixed.
3060 - Retransmitted segments now contain the correct acknowledgment
3061 number and advertised window.
3063 - TCP retransmission timeout backoffs are not correctly computed
3064 (ala BSD). After a number of retransmissions, TCP now gives up
3067 * TCP connections now are kept on three lists, one for active
3068 connections, one for listening connections, and one for
3069 connections that are in TIME-WAIT. This greatly speeds up the fast
3070 timeout processing for sending delayed ACKs.
3072 * TCP now provides proper feedback to the application when a
3073 connection has been successfully set up.
3075 * More comments have been added to the code. The code has also been
3076 somewhat cleaned up.
3078 (0.2) Initial public release.