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 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
39 2011-03-27: Simon Goldschmidt
40 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
41 calculate it in tcp_zero_window_probe (the only place where it was used).
43 2010-11-21: Simon Goldschmidt
44 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
47 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
48 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
49 IP_MULTICAST_LOOP at socket- and raw-API level.
51 2010-06-16: Simon Goldschmidt
52 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
53 link-layer-addressed UDP traffic to be received while a netif is down (just
54 like DHCP during configuration)
56 2010-05-22: Simon Goldschmidt
57 * many many files: bug #27352: removed packing from ip_addr_t, the packed
58 version is now only used in protocol headers. Added global storage for
59 current src/dest IP address while in input functions.
61 2010-05-16: Simon Goldschmidt
62 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
63 calculation (and use them throughout the stack where applicable)
65 2010-05-16: Simon Goldschmidt
66 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
67 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
69 2010-05-16: Simon Goldschmidt
70 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
71 MEMP pool instead of the heap
73 2010-05-13: Simon Goldschmidt
74 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
75 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
76 packets to more than one pcb.
78 2010-05-02: Simon Goldschmidt
79 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
80 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
82 2010-04-30: Simon Goldschmidt
83 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
84 take a precalculated checksum, added pbuf_fill_chksum() to copy data
85 into a pbuf and at the same time calculating the checksum for that data
87 2010-04-29: Simon Goldschmidt
88 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
89 2-byte-aligned IP addresses and MAC addresses
91 2010-04-28: Patch by Bill Auerbach
92 * ip.c: Inline generating IP checksum to save a function call
94 2010-04-14: Simon Goldschmidt
95 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
96 tcpip_thread processes messages or timeouts to implement a watchdog.
98 2010-03-28: Simon Goldschmidt
99 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
100 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
102 2010-03-27: Simon Goldschmidt
103 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
104 etharp_query to prevent unnecessary function calls (inspired by
107 2010-03-20: Simon Goldschmidt
108 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
109 since the linker cannot do this automatically to save space.
111 2010-03-20: Simon Goldschmidt
112 * opt.h, etharp.c/.h: Added support for static ARP table entries
114 2010-03-14: Simon Goldschmidt
115 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
116 when creating TCP segments, not when (re-)transmitting them.
118 2010-03-07: Simon Goldschmidt
119 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
120 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
121 This should speed up receiving data on sockets as the select code in
122 event_callback is only executed when select is waiting.
124 2010-03-06: Simon Goldschmidt
125 * tcp_out.c: task #7013 (Create option to have all packets delivered to
126 netif->output in one piece): Always copy to try to create single pbufs
129 2010-03-06: Simon Goldschmidt
130 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
131 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
132 for tcp netconns to receive pbufs, not netbufs; use that function
135 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
136 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
137 Work on tcp_enqueue: Don't waste memory when chaining segments,
138 added option TCP_OVERSIZE to prevent creating many small pbufs when
139 calling tcp_write with many small blocks of data. Instead, pbufs are
140 allocated larger than needed and the space is used for later calls to
143 2010-02-21: Simon Goldschmidt
144 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
147 2010-02-21: Simon Goldschmidt
148 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
149 implementation of tcp to make API usage cleare to application programmers
151 2010-02-14: Simon Goldschmidt/Stephane Lesage
152 * ip_addr.h: Improved some defines working on ip addresses, added faster
153 macro to copy addresses that cannot be NULL
155 2010-02-13: Simon Goldschmidt
156 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
157 blocking send operation)
159 2010-02-12: Simon Goldschmidt
160 * sockets.c/.h: Added a minimal version of posix fctl() to have a
161 standardised way to set O_NONBLOCK for nonblocking sockets.
163 2010-02-12: Simon Goldschmidt
164 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
165 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
166 and dhcp work with user-allocated structs instead of callin mem_malloc
168 2010-02-12: Simon Goldschmidt/Jeff Barber
169 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
170 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
172 2010-02-12: Simon Goldschmidt
173 * sys layer: task #10139 (Prefer statically allocated memory): converted
174 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
175 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
176 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
177 to let sys.h use binary semaphores instead of mutexes - as before)
179 2010-02-09: Simon Goldschmidt (Simon Kallweit)
180 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
181 (Restart system timeout handling)
183 2010-02-09: Simon Goldschmidt
184 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
185 netif.c) - loopif does not have to be created by the port any more,
186 just define LWIP_HAVE_LOOPIF to 1.
188 2010-02-08: Simon Goldschmidt
189 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
190 inet_ntoa_r/ipaddr_ntoa_r
192 2010-02-08: Simon Goldschmidt
193 * netif.h: Added netif_s/get_igmp_mac_filter() macros
195 2010-02-05: Simon Goldschmidt
196 * netif.h: Added function-like macros to get/set the hostname on a netif
198 2010-02-04: Simon Goldschmidt
199 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
200 make changing the actual implementation behind the typedef easier.
202 2010-02-01: Simon Goldschmidt
203 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
204 for allocating memory when getaddrinfo() is called.
206 2010-01-31: Simon Goldschmidt
207 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
208 them once instead of parsing for every option. This also removes
209 the need for mem_malloc from dhcp_recv and makes it possible to
210 correctly retrieve the BOOTP file.
212 2010-01-30: simon Goldschmidt
213 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
216 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
217 * api.h, api_msg.c, sockets.c: Added except set support in select
220 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
221 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
222 Add non-blocking support for connect (partly from patch #6860),
223 plus many cleanups in socket & netconn API.
225 2010-01-27: Simon Goldschmidt
226 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
227 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
229 2010-01-26: Simon Goldschmidt
230 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
232 2010-01-14: Simon Goldschmidt
233 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
234 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
236 2010-01-13: Simon Goldschmidt
237 * mem.c: The heap now may be moved to user-defined memory by defining
238 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
239 (patch #6966 and bug #26133)
241 2010-01-10: Simon Goldschmidt (Bill Auerbach)
242 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
245 2010-01-10: Simon Goldschmidt
246 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
247 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
249 2009-12-31: Simon Goldschmidt
250 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
251 added timers.c/.h: Separated timer implementation from semaphore/mbox
252 implementation, moved timer implementation to timers.c/.h, timers are
253 now only called from tcpip_thread or by explicitly checking them.
256 2009-12-27: Simon Goldschmidt
257 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
258 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
263 2011-04-20: Simon Goldschmidt
264 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
266 2011-04-13: Simon Goldschmidt
267 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
268 using ports in the IANA private/dynamic range (49152 through 65535).
270 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
271 * etharp.h/.c: Fixed broken VLAN support.
273 2011-03-27: Simon Goldschmidt
274 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
275 pcbs) by checking if the pcb was bound (local_port != 0).
277 2011-03-27: Simon Goldschmidt
278 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
280 2011-03-27: Simon Goldschmidt
281 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
282 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
284 2011-03-27: Simon Goldschmidt
285 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
286 is present never times out) by starting retransmission timer before checking
289 2011-03-22: Simon Goldschmidt
290 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
291 calling sio_read_abort() if the file descriptor is valid.
293 2011-03-14: Simon Goldschmidt
294 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
295 more than once can render a socket useless) since it mainly involves changing
296 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
298 2011-03-13: Simon Goldschmidt
299 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
300 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
301 use EALRADY instead of -1
303 2011-03-13: Simon Goldschmidt
304 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
305 connection has been aborted by err_tcp (since this is not a normal closing
308 2011-03-13: Simon Goldschmidt
309 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
310 with pcb->state != CLOSED
312 2011-02-17: Simon Goldschmidt
313 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
316 2011-02-17: Simon Goldschmidt
317 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
319 2011-01-24: Simon Goldschmidt
320 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
322 2010-12-02: Simon Goldschmidt
323 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
325 2010-11-23: Simon Goldschmidt
326 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
327 LWIP_SO_RCVBUF and ioctl/FIONREAD.
329 2010-11-23: Simon Goldschmidt
330 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
331 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
333 2010-11-23: Simon Goldschmidt
334 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
335 refusing 'refused_data' again.
337 2010-11-22: Simon Goldschmidt
338 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
339 after a successful nonblocking connection.
341 2010-11-22: Simon Goldschmidt
342 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
343 must be sent link-local
345 2010-11-22: Simon Goldschmidt
346 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
349 2010-11-20: Simon Goldschmidt
350 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
352 2010-11-20: Simon Goldschmidt
353 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
354 resemble other stacks.
356 2010-11-20: Simon Goldschmidt
357 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
358 no-copy TCP writes will never succeed.
360 2010-11-20: Simon Goldschmidt
361 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
362 not match documentation: return ERR_ARG instead of ERR_VAL if not
363 initialized or wrong argument.
365 2010-10-20: Simon Goldschmidt
366 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
368 2010-10-05: Simon Goldschmidt
369 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
370 replugging the network cable after an AutoIP address was assigned.
372 2010-08-10: Simon Goldschmidt
373 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
375 2010-08-03: Simon Goldschmidt
376 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
378 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
379 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
380 endian architectures)
382 2010-07-28: Simon Goldschmidt
383 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
386 2010-07-27: Simon Goldschmidt
387 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
388 harm but never did anything
390 2010-07-21: Simon Goldschmidt
391 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
394 2010-07-16: Kieran Mansley
395 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
397 2010-07-10: Simon Goldschmidt
398 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
400 2010-06-30: Simon Goldschmidt
401 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
404 2010-06-28: Kieran Mansley
405 * timers.c remove unportable printing of C function pointers
407 2010-06-24: Simon Goldschmidt
408 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
409 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
411 2010-06-24: Simon Goldschmidt
412 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
413 implemented shutdown at socket level.
415 2010-06-21: Simon Goldschmidt
416 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
417 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
418 custom pbufs that reference other (original) pbufs. Additionally set
419 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
421 2010-06-15: Simon Goldschmidt
422 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
424 2010-06-14: Simon Goldschmidt
425 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
427 2010-06-12: Simon Goldschmidt
428 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
431 2010-05-17: Simon Goldschmidt
432 * netdb.c: Correctly NULL-terminate h_addr_list
434 2010-05-16: Simon Goldschmidt
435 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
436 "symbol already defined" i.e. when linking to winsock
438 2010-05-05: Simon Goldschmidt
439 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
442 2010-04-21: Simon Goldschmidt
443 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
446 2010-03-28: Luca Ceresoli
447 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
449 2010-03-27: Luca Ceresoli
450 * mib2.c: patch #7130: remove meaningless const qualifiers
452 2010-03-26: Simon Goldschmidt
453 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
455 2010-03-26: Simon Goldschmidt
456 * various files: Fixed compiling with different options disabled (TCP/UDP),
457 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
459 2010-03-25: Simon Goldschmidt
460 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
462 2010-03-25: Simon Goldschmidt
463 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
464 overrunning our rcv_wnd in ooseq case.
466 2010-03-22: Simon Goldschmidt
467 * tcp.c: tcp_listen() did not copy the pcb's prio.
469 2010-03-19: Simon Goldschmidt
470 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
472 2010-03-14: Simon Goldschmidt
473 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
474 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
475 and basing PBUF_LINK_HLEN on it.
477 2010-03-08: Simon Goldschmidt
478 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
479 when assiging routable address): when checking incoming packets and
480 aborting existing connection on address change, filter out link-local
483 2010-03-06: Simon Goldschmidt
484 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
486 2010-03-06: Simon Goldschmidt
487 * ipv4/ip.c: Don't try to forward link-local addresses
489 2010-03-06: Simon Goldschmidt
490 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
493 2010-03-05: Simon Goldschmidt
494 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
497 2010-03-05: Simon Goldschmidt
498 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
499 into multiple calls to tcp_write.
501 2010-02-21: Simon Goldschmidt
502 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
503 the implementation of DNS_USES_STATIC_BUF==1)
505 2010-02-20: Simon Goldschmidt
506 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
507 close() vs. shutdown(). Now the application does not get any more
508 recv callbacks after calling tcp_close(). Added tcp_shutdown().
510 2010-02-19: Simon Goldschmidt
511 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
512 confusion with realloc()
514 2010-02-15: Simon Goldschmidt/Stephane Lesage
515 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
518 2010-02-14: Simon Goldschmidt
519 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
520 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
521 admin-status of a netif are up
523 2010-02-14: Simon Goldschmidt
524 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
525 reception and is not really necessary
527 2010-02-14: Simon Goldschmidt
528 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
529 request was directed as us (RFC 826, Packet Reception), otherwise
530 only update existing entries; internalized some functions
532 2010-02-14: Simon Goldschmidt
533 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
534 disabled on netif used for PPPoE) by adding a new netif flag
535 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
536 device but prevents usage of ARP (so that ethernet_input can be used
539 2010-02-12: Simon Goldschmidt
540 * netif.c: netif_set_link_up/down: only do something if the link state
543 2010-02-12: Simon Goldschmidt/Stephane Lesage
544 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
547 2010-02-12: Simon Goldschmidt
548 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
550 2010-02-09: Simon Goldschmidt
551 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
552 (recv() makes receive window update for data that wasn't received by
555 2010-02-09: Simon Goldschmidt/Stephane Lesage
556 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
557 or any netconn_recv() error)
559 2010-02-09: Simon Goldschmidt
560 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
562 2010-02-09: Simon Goldschmidt
563 * netif.c: For loopback packets, adjust the stats- and snmp-counters
564 for the loopback netif.
566 2010-02-08: Simon Goldschmidt
567 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
568 since they are not used anywhere else.
570 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
571 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
572 (patch from bug #28798)
574 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
575 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
576 another bug when LWIP_RAND() returns zero.
578 2010-02-04: Simon Goldschmidt
579 * nearly every file: Use macros defined in ip_addr.h (some of them new)
580 to work with IP addresses (preparation for bug #27352 - Change ip_addr
581 from struct to typedef (u32_t) - and better code).
583 2010-01-31: Simon Goldschmidt
584 * netif.c: Don't call the link-callback from netif_set_up/down() since
585 this invalidly retriggers DHCP.
587 2010-01-29: Simon Goldschmidt
588 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
589 portability file inet.h and its contents from the stack: moved htonX-
590 functions to def.h (and the new def.c - they are not ipv4 dependent),
591 let inet.h depend on ip_addr.h and not the other way round.
592 This fixes bug #28732.
594 2010-01-28: Kieran Mansley
595 * tcp.c: Ensure ssthresh >= 2*MSS
597 2010-01-27: Simon Goldschmidt
598 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
599 callback can lead to accessing unallocated memory. As a consequence,
600 ERR_ABRT means the application has called tcp_abort()!
602 2010-01-25: Simon Goldschmidt
603 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
604 not implemented in SNMP): write-only or not-accessible are still
605 returned by getnext (though not by get)
607 2010-01-24: Simon Goldschmidt
608 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
609 not use reserved C/C++ keywords
611 2010-01-23: Simon Goldschmidt
612 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
615 2010-01-21: Simon Goldschmidt
616 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
617 if tcp_enqueue fails) both in raw- and netconn-API
619 2010-01-19: Simon Goldschmidt
620 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
622 2010-01-18: Iordan Neshev/Simon Goldschmidt
623 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
624 bugfix backports from 2.4.x.
626 2010-01-18: Simon Goldschmidt
627 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
629 2010-01-17: Simon Goldschmidt
630 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
631 task #10102: "netconn: clean up conn->err threading issues" by adding
632 error return value to struct api_msg_msg
634 2010-01-17: Simon Goldschmidt
635 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
636 to return err_t (bugs #27709 and #28087)
638 2010-01-14: Simon Goldschmidt
639 * ...: Use typedef for function prototypes throughout the stack.
641 2010-01-13: Simon Goldschmidt
642 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
643 window = 0) by correctly draining recvmbox/acceptmbox
645 2010-01-11: Simon Goldschmidt
646 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
647 erroneous callbacks) by copying the code from recent pppd
649 2010-01-10: Simon Goldschmidt
650 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
652 2010-01-10: Simon Goldschmidt
653 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
655 2010-01-08: Simon Goldschmidt
656 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
658 2010-01-08: Simon Goldschmidt
659 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
660 passed to dns_local_addhost() might be volatile
662 2010-01-07: Simon Goldschmidt
663 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
665 2010-01-06: Simon Goldschmidt
666 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
668 2009-12-31: Simon Goldschmidt
669 * many ppp files: Reorganised PPP source code from ucip structure to pppd
670 structure to easily compare our code against the pppd code (around v2.3.1)
672 2009-12-27: Simon Goldschmidt
673 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
681 2009-10-27 Simon Goldschmidt/Stephan Lesage
682 * netifapi.c/.h: Added netifapi_netif_set_addr()
684 2009-10-07 Simon Goldschmidt/Fabian Koch
685 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
686 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
688 2009-08-26 Simon Goldschmidt/Simon Kallweit
689 * slipif.c/.h: bug #26397: SLIP polling support
691 2009-08-25 Simon Goldschmidt
692 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
693 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
695 2009-08-25 Simon Goldschmidt
696 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
698 2009-08-24 Jakob Stoklund Olesen
699 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
700 to netif_set_link_up().
702 2009-08-23 Simon Goldschmidt
703 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
704 to a human-readable string.
708 2009-12-24: Kieran Mansley
709 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
712 2009-12-06: Simon Goldschmidt
713 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
714 be statically allocated (like in ucip)
716 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
717 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
719 2009-12-03: Simon Goldschmidt
720 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
721 could have non-zero length
723 2009-12-02: Simon Goldschmidt
724 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
725 tcp_input_pcb until after calling the pcb's callbacks
727 2009-11-29: Simon Goldschmidt
728 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
729 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
731 2009-11-29: Simon Goldschmidt
732 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
733 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
735 2009-11-26: Simon Goldschmidt
736 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
739 2009-11-26: Simon Goldschmidt
740 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
741 algorithm at PCB level
743 2009-11-22: Simon Goldschmidt
744 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
746 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
747 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
748 reusing time-wait pcb
750 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
751 * sockets.c: Fixed bug #28062: Data received directly after accepting
752 does not wake up select
754 2009-11-11: Simon Goldschmidt
755 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
757 2009-10-30: Simon Goldschmidt
758 * opt.h: Increased default value for TCP_MSS to 536, updated default
759 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
761 2009-10-28: Kieran Mansley
762 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
763 to follow algorithm from TCP/IP Illustrated
765 2009-10-27: Kieran Mansley
766 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
768 2009-10-25: Simon Goldschmidt
769 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
770 pcb->recv is NULL to keep rcv_wnd correct)
772 2009-10-25: Simon Goldschmidt
773 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
775 2009-10-23: Simon Goldschmidt (David Empson)
776 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
778 2009-10-21: Simon Goldschmidt
779 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
780 trailing 1 byte len (SYN/FIN)
782 2009-10-21: Simon Goldschmidt
783 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
785 2009-10-19: Simon Goldschmidt
786 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
787 conditional code to assert where applicable), check pbuf length before
788 testing for valid reply
790 2009-10-19: Simon Goldschmidt
791 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
792 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
794 2009-10-16: Simon Goldschmidt
795 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
796 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
799 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
800 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
802 2009-10-15: Simon Goldschmidt
803 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
806 2009-10-15: Simon Goldschmidt
807 * autoip.c: Fixed bug #27704: autoip starts with wrong address
808 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
809 of network byte order
811 2009-10-11 Simon Goldschmidt (Jörg Kesten)
812 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
813 which are not consecutive when retransmitting unacked segments
815 2009-10-09 Simon Goldschmidt
816 * opt.h: Fixed default values of some stats to only be enabled if used
817 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
819 2009-08-30 Simon Goldschmidt
820 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
821 function" by checking for loopback before calling ip_frag
823 2009-08-25 Simon Goldschmidt
824 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
826 2009-08-23 Simon Goldschmidt
827 * ppp.c: bug #27078: Possible memory leak in pppInit()
829 2009-08-23 Simon Goldschmidt
830 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
833 2009-08-23 Simon Goldschmidt
834 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
835 Fixed wrong parenthesis, added check in init.c
837 2009-08-23 Simon Goldschmidt
838 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
840 2009-08-23 Simon Goldschmidt
841 * many ppp files: bug #27267: Added include to string.h where needed
843 2009-08-23 Simon Goldschmidt
844 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
851 2009-05-10 Simon Goldschmidt
852 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
853 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
854 one pbuf to help MACs that don't support scatter-gather DMA.
856 2009-05-09 Simon Goldschmidt
857 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
858 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
860 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
861 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
862 extended info about the currently received packet.
864 2009-04-27 Simon Goldschmidt
865 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
867 2009-04-25 Simon Goldschmidt
868 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
869 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
871 2009-04-21 Simon Goldschmidt
872 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
873 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
874 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
875 as an external function for lookup.
877 2009-04-15 Simon Goldschmidt
878 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
880 2009-03-31 Kieran Mansley
881 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
882 TCP timestamp options, off by default. Rework tcp_enqueue() to
883 take option flags rather than specified option data
885 2009-02-18 Simon Goldschmidt
886 * cc.h: Added printf formatter for size_t: SZT_F
888 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
889 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
892 2009-02-12 Simon Goldschmidt
893 * init.h: Added LWIP_VERSION to get the current version of the stack
895 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
896 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
897 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
900 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
901 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
902 is only used by UDPLITE at present, so conditionalise it.
904 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
905 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
906 "seed" address. This should reduce AUTOIP conflicts if
907 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
909 2008-10-02 Jonathan Larmour and Rishi Khan
910 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
913 2008-06-30 Simon Goldschmidt
914 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
915 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
916 mem_free to run between mem_malloc iterations. Added illegal counter for
919 2008-06-27 Simon Goldschmidt
920 * stats.h/.c, some other files: patch #6483: stats module improvement:
921 Added defines to display each module's statistic individually, added stats
922 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
924 2008-06-17 Simon Goldschmidt
925 * err.h: patch #6459: Made err_t overridable to use a more efficient type
926 (define LWIP_ERR_T in cc.h)
928 2008-06-17 Simon Goldschmidt
929 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
932 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
933 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
934 modified version of patch # 6370: Moved loopif code to netif.c so that
935 loopback traffic is supported on all netifs (all local IPs).
936 Added option to limit loopback packets for each netifs.
940 2009-08-12 Kieran Mansley
941 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
942 out of window or out of order properly
944 2009-08-12 Kieran Mansley
945 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
947 2009-07-28 Simon Goldschmidt
948 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
950 2009-07-27 Kieran Mansley
951 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
953 2009-07-09 Kieran Mansley
954 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
955 recv_avail and don't increment counters until message successfully
958 2009-06-25 Kieran Mansley
959 * api_msg.c api.h: BUG26722: initialise netconn write variables
962 2009-06-25 Kieran Mansley
963 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
965 2009-06-25 Kieran Mansley
966 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
967 simultaneous close behaviour, and make snd_nxt have the same meaning
970 2009-05-12 Simon Goldschmidt
971 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
972 arp_table / uses etharp_query" by adding etharp_gratuitous()
974 2009-05-12 Simon Goldschmidt
975 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
976 to the IP header (used by igmp_ip_output_if)
978 2009-05-06 Simon Goldschmidt
979 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
980 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
982 2009-05-05 Simon Goldschmidt
983 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
986 2009-05-04 Simon Goldschmidt
987 * init.c: snmp was not initialized in lwip_init()
989 2009-05-04 Frédéric Bernon
990 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
992 2009-05-03 Simon Goldschmidt
993 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
994 (and unsent->next == NULL)
996 2009-05-02 Simon Goldschmidt
997 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
998 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1000 2009-05-02 Simon Goldschmidt
1001 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1003 2009-05-01 Simon Goldschmidt
1004 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1006 2009-05-01 Simon Goldschmidt
1007 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1009 2009-04-29 Frédéric Bernon
1010 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1011 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1012 of broadcast packets even when this option wasn't set. Port maintainers
1013 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1014 If you want this option also filter broadcast on recv operations, you also
1015 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1017 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1018 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1019 DHCP/AUTOIP cooperation
1021 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1022 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1023 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1024 right place in tcp_output and tcp_rexmit).
1026 2009-04-25 Simon Goldschmidt
1027 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1028 when debugging": memp_sizes contained the wrong sizes (including sanity
1029 regions); memp pools for MEM_USE_POOLS were too small
1031 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1032 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1033 behavior, with with ip address string not ended by a '\0', a space or a
1036 2009-04-19 Simon Goldschmidt
1037 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1038 pcb->err is called, not pcb->connected (with an error code).
1040 2009-04-19 Simon Goldschmidt
1041 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1042 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1044 2009-04-19 Simon Goldschmidt
1045 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1046 in the header pbuf, not the data pbuf)
1048 2009-04-18 Simon Goldschmidt
1049 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1051 2009-04-15 Simon Goldschmidt
1052 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1054 2009-04-15 Simon Goldschmidt
1055 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1057 2009-04-15 Simon Goldschmidt
1058 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1059 ip_hinted_output() (for smaller code mainly)
1061 2009-04-15 Simon Goldschmidt
1062 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1064 2009-04-15 Simon Goldschmidt
1065 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1066 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1067 is big enough in dhcp_start
1069 2009-04-15 Simon Goldschmidt
1070 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1072 2009-04-15 Simon Goldschmidt
1073 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1075 2009-04-15 Simon Goldschmidt
1076 * sockets.c: bug #26121: set_errno can be overridden
1078 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1079 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1082 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1083 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1086 2009-03-31 Kieran Mansley
1087 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1088 updates are calculated and sent (BUG20515)
1090 * tcp_in.c: cope with SYN packets received during established states,
1091 and retransmission of initial SYN.
1093 * tcp_out.c: set push bit correctly when tcp segments are merged
1095 2009-03-27 Kieran Mansley
1096 * tcp_out.c set window correctly on probes (correcting change made
1099 2009-03-26 Kieran Mansley
1100 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1101 connections where no reset required (bug #25622)
1103 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1106 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1107 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1108 too small depending on MEM_ALIGNMENT
1110 2009-02-16 Simon Goldschmidt
1111 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1112 converted size argument of netconn_write to 'size_t'
1114 2009-02-16 Simon Goldschmidt
1115 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1116 by moving accept callback function pointer to TCP_PCB_COMMON
1118 2009-02-12 Simon Goldschmidt
1119 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1122 2009-02-11 Simon Goldschmidt
1123 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1125 2009-02-11 Simon Goldschmidt
1126 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1127 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1129 2009-02-10 Simon Goldschmidt
1130 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1131 Accepts_pending is decrease on a corresponding listen pcb when a connection
1132 in state SYN_RCVD is close.
1134 2009-01-28 Jonathan Larmour
1135 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1138 2008-12-19 Simon Goldschmidt
1139 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1141 2008-12-10 Tamas Somogyi, Frédéric Bernon
1142 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1143 port uses deleted netbuf.
1145 2008-10-18 Simon Goldschmidt
1146 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1149 2008-10-15 Simon Goldschmidt
1150 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1151 by packing the struct ip_reass_helper.
1153 2008-10-03 David Woodhouse, Jonathan Larmour
1154 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1156 2008-10-02 Jonathan Larmour
1157 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1158 padding is included.
1160 2008-09-30 Jonathan Larmour
1161 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1162 assertion check that addrlen isn't NULL.
1164 2008-09-30 Jonathan Larmour
1165 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1167 2008-08-26 Simon Goldschmidt
1168 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1169 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1171 2008-08-14 Simon Goldschmidt
1172 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1173 tcp_close returns != ERR_OK)
1175 2008-07-08 Frédéric Bernon
1176 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1177 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1179 2008-06-24 Jonathan Larmour
1180 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1181 if tcp_seg_copy fails.
1183 2008-06-17 Simon Goldschmidt
1184 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1185 and created defines for swapping bytes and folding u32 to u16.
1187 2008-05-30 Kieran Mansley
1188 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1189 rather than rcv_ann_wnd when deciding if packets are in-window.
1190 Contributed by <arasmussen@consultant.datasys.swri.edu>
1192 2008-05-30 Kieran Mansley
1193 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1194 passing as function pointers when MEM_LIBC_MALLOC is defined.
1196 2008-05-09 Jonathan Larmour
1197 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1198 stop it being treated as a fatal error.
1200 2008-04-15 Simon Goldschmidt
1201 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1204 2008-03-27 Simon Goldschmidt
1205 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1206 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1207 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1208 or heap memory from interrupt context
1210 2008-03-26 Simon Goldschmidt
1211 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1212 host sent a zero mss as TCP option.
1219 2008-03-10 Jonathan Larmour
1220 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1221 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1223 2008-01-22 Frédéric Bernon
1224 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1225 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1227 2008-01-14 Frédéric Bernon
1228 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1229 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1230 tcp_recv callback (see rawapi.txt).
1232 2008-01-14 Frédéric Bernon, Marc Chaland
1233 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1235 2008-01-12 Frédéric Bernon
1236 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1237 netconn::sem per netconn::op_completed like suggested for the task #7490
1238 "Add return value to sys_mbox_post".
1240 2008-01-12 Frédéric Bernon
1241 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1242 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1243 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1245 2008-01-10 Frédéric Bernon
1246 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1247 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1248 "blocking" ("block" parameter = 1).
1250 2008-01-10 Frédéric Bernon
1251 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1252 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1253 "Add return value to sys_mbox_post".
1255 2008-01-05 Frédéric Bernon
1256 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1257 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1258 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1259 indicate the number of pointers query by the mailbox. There is three defines
1260 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1261 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1262 parameter in your implementation, but to ignore it to keep the previous behavior.
1263 The new sys_mbox_trypost function return a value to know if the mailbox is
1264 full or if the message is posted. Take a look to sys_arch.txt for more details.
1265 This new function is used in tcpip_input (so, can be called in an interrupt
1266 context since the function is not blocking), and in recv_udp and recv_raw.
1268 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1269 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1270 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1271 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1272 documentation in the rawapi.txt file.
1274 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1275 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1277 2007-12-31 Frédéric Bernon, Luca Ceresoli
1278 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1279 in autoip". The change in etharp_raw could be removed, since all calls to
1280 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1281 wrong in the future.
1283 2007-12-30 Frédéric Bernon, Tom Evans
1284 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1285 Filtering" reported by Tom Evans.
1287 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1288 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1289 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1290 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1291 keep accepting new connections.
1293 2007-12-13 Frédéric Bernon
1294 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1295 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1297 2007-12-12 Frédéric Bernon
1298 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1299 are the one which have ram usage.
1301 2007-12-05 Frédéric Bernon
1302 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1303 set of variables (=0) or a local one (=1). In this last case, your port should
1304 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1305 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1307 2007-12-03 Simon Goldschmidt
1308 * ip.c: ip_input: check if a packet is for inp first before checking all other
1309 netifs on netif_list (speeds up packet receiving in most cases)
1311 2007-11-30 Simon Goldschmidt
1312 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1313 UDP: move a (connected) pcb selected for input to the front of the list of
1314 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1317 2007-11-28 Simon Goldschmidt
1318 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1320 2007-11-25 Simon Goldschmidt
1321 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1324 2007-11-24 Simon Goldschmidt
1325 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1326 to the new file netdb.c; included lwip_getaddrinfo.
1328 2007-11-21 Simon Goldschmidt
1329 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1330 based on the MTU of the netif used to send. Enabled by default. Disable by
1331 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1333 2007-11-19 Frédéric Bernon
1334 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1335 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1336 copy dns payload to parse the response), return an error if there is no place
1337 for a new query, and fix some minor problems.
1339 2007-11-16 Simon Goldschmidt
1340 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1341 removed files: core/inet.c, core/inet6.c
1342 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1343 inet and chksum part; changed includes in all lwIP files as appropriate
1345 2007-11-16 Simon Goldschmidt
1346 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1347 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1348 (gethostbyname/gethostbyname_r).
1350 2007-11-15 Jim Pettinato, Frédéric Bernon
1351 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1352 requests with RAW api interface. Initialization is done in lwip_init() with
1353 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1354 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1355 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1356 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1357 list with points to improve.
1359 2007-11-06 Simon Goldschmidt
1360 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1361 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1362 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1364 2007-11-06 Simon Goldschmidt
1365 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1366 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1367 implementation from netconn api applications.
1369 2007-11-03 Frédéric Bernon
1370 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1371 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1372 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1373 it. This is a first release which have to be improve for TCP. Note it used the
1374 netconn::recv_avail which need to be more "thread-safe" (note there is already
1375 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1377 2007-11-01 Frédéric Bernon, Marc Chaland
1378 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1379 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1380 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1381 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1382 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1384 2007-10-24 Frédéric Bernon
1385 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1386 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1387 some code (like we have talk in "patch #5919 : Create compile switch to remove
1388 select code"), but it could be done later.
1390 2007-10-08 Simon Goldschmidt
1391 * many files: Changed initialization: many init functions are not needed any
1392 more since we now rely on the compiler initializing global and static
1395 2007-10-06 Simon Goldschmidt
1396 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1397 to enqueue the received pbufs so that multiple packets can be reassembled
1398 simultaneously and no static reassembly buffer is needed.
1400 2007-10-05 Simon Goldschmidt
1401 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1402 all netifs (or ports) can use it.
1404 2007-10-05 Frédéric Bernon
1405 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1406 common function to reduce a little bit the footprint (for all functions using
1407 only the "netif" parameter).
1409 2007-10-03 Frédéric Bernon
1410 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1411 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1412 a little bit the footprint (for all functions using only the "netif" parameter).
1414 2007-09-15 Frédéric Bernon
1415 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1416 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1417 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1418 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1420 2007-09-10 Frédéric Bernon
1421 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1422 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1423 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1424 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1425 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1426 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1427 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1428 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1429 when it's queried (any direct call to "sysuptime" is changed by a call to
1430 snmp_get_sysuptime).
1432 2007-09-09 Frédéric Bernon, Bill Florac
1433 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1434 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1435 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1436 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1437 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1438 the next query message to receive the matching multicast streams).
1440 2007-09-08 Frédéric Bernon
1441 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1442 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1443 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1444 Enable to access to these fields with LWIP_TCP=0.
1446 2007-09-05 Frédéric Bernon
1447 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1448 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1449 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1450 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1451 help to reduce footprint, and to reduce "visibility" on the Internet.
1453 2007-09-05 Frédéric Bernon, Bill Florac
1454 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1455 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1456 parameters have to be provided: a task name, and a task stack size. For this
1457 one, since it's platform dependant, you could define the best one for you in
1458 your lwipopts.h. For port maintainers, you can just add these new parameters
1459 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1462 2007-09-05 Frédéric Bernon
1463 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1464 inside init.c for task #7142 "Sanity check user-configurable values".
1466 2007-09-04 Frédéric Bernon, Bill Florac
1467 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1468 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1469 value). It will avoid potential fragmentation problems, use a counter to know
1470 how many times a group is used on an netif, and free it when all applications
1471 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1472 check if LWIP_IGMP!=0).
1474 2007-09-03 Frédéric Bernon
1475 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1476 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1477 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1478 and/or the "interface" field (for netconn layer), for join/leave operations.
1479 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1480 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1482 2007-08-30 Frédéric Bernon
1483 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1484 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1485 with other API (application based on raw API, or future "socket2" API). Ports
1486 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1488 2007-08-30 Frédéric Bernon, Jonathan Larmour
1489 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1490 user-configurable values".
1492 2007-08-29 Frédéric Bernon
1493 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1494 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1495 spirit than the others modules. Modify some IGMP debug traces.
1497 2007-08-29 Frédéric Bernon
1498 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1499 Add lwip_init function to regroup all modules initializations, and to provide
1500 a place to add code for task #7142 "Sanity check user-configurable values".
1501 Ports maintainers should remove direct initializations calls from their code,
1502 and add init.c in their makefiles. Note that lwip_init() function is called
1503 inside tcpip_init, but can also be used by raw api users since all calls are
1504 disabled when matching options are disabled. Also note that their is new options
1505 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1507 2007-08-26 Marc Boucher
1508 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1509 since they can under certain circumstances be called with an invalid conn
1510 pointer after the connection has been closed (and conn has been freed).
1512 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1513 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1514 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1516 2007-08-22 Frédéric Bernon
1517 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1518 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1520 2007-08-22 Frédéric Bernon
1521 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1522 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1523 name is tcpip_input (we keep the name of 1.2.0 function).
1525 2007-08-17 Jared Grubb
1526 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1527 settings into new memp_std.h and optional user file lwippools.h. This adds
1528 more dynamic mempools, and allows the user to create an arbitrary number of
1529 mempools for mem_malloc.
1531 2007-08-16 Marc Boucher
1532 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1533 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1534 close the connection.
1536 2007-08-16 Marc Boucher
1537 * sockets.c: lwip_accept(): check netconn_peer() error return.
1539 2007-08-16 Marc Boucher
1540 * mem.c, mem.h: Added mem_calloc().
1542 2007-08-16 Marc Boucher
1543 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1544 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1545 and starving other message types.
1546 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1548 2007-08-16 Marc Boucher
1549 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1550 type and flgs (later renamed to flags).
1551 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1552 Improved lwip_recvfrom(). TCP push now propagated.
1554 2007-08-16 Marc Boucher
1555 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1558 2007-08-16 Marc Boucher
1559 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1560 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1561 Added PPPoE support and various PPP improvements.
1563 2007-07-25 Simon Goldschmidt
1564 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1565 making netbuf_copy_partial use this function.
1567 2007-07-25 Simon Goldschmidt
1568 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1569 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1572 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1573 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1574 a link callback in the netif struct, and functions to handle it. Be carefull
1575 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1576 if you want to be sure to be compatible with future changes...
1578 2007-06-30 Frédéric Bernon
1579 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1581 2007-06-21 Simon Goldschmidt
1582 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1583 LWIP_AUTOIP =0 and =1 to remove redundant code.
1585 2007-06-21 Simon Goldschmidt
1586 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1587 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1588 heap. This both prevents memory fragmentation and gives a higher speed
1589 at the cost of more memory consumption. Turned off by default.
1591 2007-06-21 Simon Goldschmidt
1592 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1593 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1594 int to be able to send a bigger buffer than 64K with one time (mainly
1595 used from lwip_send).
1597 2007-06-21 Simon Goldschmidt
1598 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1599 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1601 2007-06-21 Simon Goldschmidt
1602 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1603 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1604 changes on low memory or empty send-buffer.
1606 2007-06-18 Simon Goldschmidt
1607 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1608 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1609 used for ethernet and struct eth_addr already had a defined length of 6).
1611 2007-06-17 Simon Goldschmidt
1612 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1613 to disable UDP checksum generation on transmit.
1615 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1616 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1617 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1618 this macro to check "conn" parameter in api_msg.c functions.
1620 2007-06-11 Simon Goldschmidt
1621 * sockets.c, sockets.h: Added UDP lite support for sockets
1623 2007-06-10 Simon Goldschmidt
1624 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1625 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1628 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1629 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1630 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1631 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1632 (see TODO mark in the source code).
1634 2007-06-09 Simon Goldschmidt
1635 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1636 etharp_output() to match netif->output so etharp_output() can be used
1637 directly as netif->output to save one function call.
1639 2007-06-08 Simon Goldschmidt
1640 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1641 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1642 added initialization of those to ethernetif, slipif and loopif.
1644 2007-05-18 Simon Goldschmidt
1645 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1646 (defaulting to off for now) that can be set to 0 to send fragmented
1647 packets by passing PBUF_REFs down the stack.
1649 2007-05-23 Frédéric Bernon
1650 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1651 connections, such present in patch #5959.
1653 2007-05-23 Frédéric Bernon
1654 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1655 code in only one part...
1657 2007-05-18 Simon Goldschmidt
1658 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1659 elements to overflow. This is achieved by adding some bytes before and after
1660 each pool element (increasing their size, of course), filling them with a
1661 prominent value and checking them on freeing the element.
1662 Set it to 2 to also check every element in every pool each time memp_malloc()
1663 or memp_free() is called (slower but more helpful).
1665 2007-05-10 Simon Goldschmidt
1666 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1667 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1670 2007-05-11 Frédéric Bernon
1671 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1672 Include a function pointer instead of a table index in the message to reduce
1673 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1674 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1676 2007-05-10 Simon Goldschmidt
1677 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1678 \ extern "C" {' in all header files. Now you can write your application using
1679 the lwIP stack in C++ and simply #include the core files. Note I have left
1680 out the netif/ppp/*h header files for now, since I don't know which files are
1681 included by applications and which are for internal use only.
1683 2007-05-09 Simon Goldschmidt
1684 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1685 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1686 situations where some compilers might inline the copy and save a function
1687 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1689 2007-05-08 Simon Goldschmidt
1690 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1691 to be overriden in case the C-library malloc implementation is not protected
1692 against concurrent access.
1694 2007-05-04 Simon Goldschmidt (Atte Kojo)
1695 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1696 multiple packets to the same host.
1698 2007-05-04 Frédéric Bernon, Jonathan Larmour
1699 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1700 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1701 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1702 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1703 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1704 these fields are now renamed "addr" & "port".
1706 2007-04-11 Jonathan Larmour
1707 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1708 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1709 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1710 by the port in sys_arch.h if desired.
1712 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1713 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1714 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1715 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1717 2007-04-05 Frédéric Bernon
1718 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1720 2007-04-04 Simon Goldschmidt
1721 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1722 use this for and architecture-independent form to tell the compiler you intentionally
1723 are not using this variable. Can be overriden in cc.h.
1725 2007-03-28 Frédéric Bernon
1726 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1727 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1728 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1729 It will be used by DHCP to register a client hostname, but can also be use when you call
1732 2007-03-28 Frédéric Bernon
1733 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1734 initialize a network interface's flag with. It tell this interface is an ethernet
1735 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1736 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1738 2007-03-26 Frédéric Bernon, Jonathan Larmour
1739 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1740 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1741 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1742 is done in tcpip_init function.
1744 2007-03-22 Frédéric Bernon
1745 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1746 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1747 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1748 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1749 but never used. Fix msg_in.c with the correct #if test for a stat display.
1751 2007-03-21 Kieran Mansley
1752 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1753 Provides callback on netif up/down state change.
1755 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1756 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1757 ip.c, netif.h, tcpip.c, opt.h:
1758 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1759 filter per all network interfaces. Declare a new function in netif to enable to
1760 control the MAC filter (to reduce lwIP traffic processing).
1762 2007-03-11 Frédéric Bernon
1763 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1764 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1765 unless you know what you're doing (default are RFC1122 compliant). Note
1766 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1768 2007-03-08 Frédéric Bernon
1769 * tcp.h: Keepalive values can be configured at compile time, but don't change
1770 this unless you know what you're doing (default are RFC1122 compliant).
1772 2007-03-08 Frédéric Bernon
1773 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1774 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1775 on UDP sockets/netconn.
1777 2007-03-08 Simon Goldschmidt
1778 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1780 2007-03-06 Frédéric Bernon
1781 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1782 Implement SO_RCVTIMEO on UDP sockets/netconn.
1784 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1785 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1786 on the stack and remove the API msg type from memp
1788 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1789 * sockets.h, sockets.c: Move socket initialization to new
1790 lwip_socket_init() function.
1791 NOTE: this changes the API with ports. Ports will have to be
1792 updated to call lwip_socket_init() now.
1794 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1795 * api_lib.c: Use memcpy in netbuf_copy_partial.
1800 2008-03-17 Frédéric Bernon, Ed Kerekes
1801 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1802 some problems to fill the IP header on some targets, use now the
1803 ip.h macros to do it).
1805 2008-03-13 Frédéric Bernon
1806 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1807 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1808 TCP connection caused a crash. Note that using (lwip_)recvfrom
1809 like this is a bit slow and that using (lwip)getpeername is the
1810 good lwip way to do it (so, using recv is faster on tcp sockets).
1812 2008-03-12 Frédéric Bernon, Jonathan Larmour
1813 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1814 recv_raw() does not consume data", and the ping sample (with
1815 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1816 returned the IP payload, without the IP header).
1818 2008-03-04 Jonathan Larmour
1819 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1820 and/or warnings on some systems where mem_size_t and size_t differ.
1821 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1823 2008-03-04 Kieran Mansley (contributions by others)
1824 * Numerous small compiler error/warning fixes from contributions to
1825 mailing list after 1.3.0 release candidate made.
1827 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1828 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1830 2008-01-15 Kieran Mansley
1831 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1832 prevented from sending by a small send window, not just a zero
1835 2008-01-09 Jonathan Larmour
1836 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1837 conflict with Linux system headers.
1839 2008-01-06 Jonathan Larmour
1840 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1841 address entirely on receiving a DHCPNAK, and restarting discovery.
1843 2007-12-21 Simon Goldschmidt
1844 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1845 is not protected" by using new macros for interlocked access to modify/test
1846 netconn->recv_avail.
1848 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1849 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1851 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1852 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1853 of silly window avoidance and prevent lwIP from shrinking the window)
1855 2007-12-04 Simon Goldschmidt
1856 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1857 data packet was lost): add assert that all segment lists are empty in
1858 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1859 state from LAST_ACK in tcp_process
1861 2007-12-02 Simon Goldschmidt
1862 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1863 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1864 has to be set to 0 in lwipopts.h
1866 2007-12-02 Simon Goldschmidt
1867 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1868 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1869 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1870 This is a fix for thread-safety and allocates all items needed for a netconn
1871 when the netconn is created.
1873 2007-11-30 Simon Goldschmidt
1874 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1875 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1876 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1877 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1879 2007-11-27 Simon Goldschmidt
1880 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1881 letting ip_route only use netifs that are up.
1883 2007-11-27 Simon Goldschmidt
1884 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1885 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1886 sockets block most operations once they have seen a fatal error.
1888 2007-11-27 Simon Goldschmidt
1889 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1890 netif to send as an argument (to be able to send on netifs that are down).
1892 2007-11-26 Simon Goldschmidt
1893 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1896 2007-11-21 Simon Goldschmidt
1897 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1898 Fixed the nagle algorithm; nagle now also works for all raw API applications
1899 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1901 2007-11-12 Frédéric Bernon
1902 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1903 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1904 context in do_getaddr.
1906 2007-11-10 Simon Goldschmidt
1907 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1908 happen any time). Now the packet simply isn't enqueued when out of memory.
1910 2007-11-01 Simon Goldschmidt
1911 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1912 TCP_MSS if that is smaller) as long as no MSS option is received from the
1915 2007-11-01 Simon Goldschmidt
1916 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1917 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1918 sending our configured TCP_MSS instead of the one received).
1920 2007-11-01 Simon Goldschmidt
1921 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1922 calculated based on the configured TCP_MSS, not on the MSS option received
1925 2007-10-09 Simon Goldschmidt
1926 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1927 short and also was generated wrong if checksum coverage != tot_len;
1928 receive: checksum was calculated wrong if checksum coverage != tot_len
1930 2007-10-08 Simon Goldschmidt
1931 * mem.c: lfree was not updated in mem_realloc!
1933 2007-10-07 Frédéric Bernon
1934 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1935 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1936 this change cause an API breakage for netconn_addr, since a parameter
1937 type change. Any compiler should cause an error without any changes in
1938 yours netconn_peer calls (so, it can't be a "silent change"). It also
1939 reduce a little bit the footprint for socket layer (lwip_getpeername &
1940 lwip_getsockname use now a common lwip_getaddrname function since
1941 netconn_peer & netconn_addr have the same parameters).
1943 2007-09-20 Simon Goldschmidt
1944 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1945 by checking tcp_tw_pcbs also
1947 2007-09-19 Simon Goldschmidt
1948 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
1950 2007-09-15 Mike Kleshov
1951 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
1953 2007-09-06 Frédéric Bernon
1954 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
1955 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
1956 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
1957 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
1959 2007-08-30 Frédéric Bernon
1960 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
1961 and fix some coding style.
1963 2007-08-28 Frédéric Bernon
1964 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
1965 kind of packets. These packets are considered like Ethernet packets (payload
1966 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
1967 are considered like IP packets (payload pointing to iphdr).
1969 2007-08-27 Frédéric Bernon
1970 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
1971 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
1972 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
1974 2007-08-24 Kieran Mansley
1975 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
1976 compiler (Paradigm C++)
1978 2007-08-09 Frédéric Bernon, Bill Florac
1979 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
1980 Introduce IGMP_STATS to centralize statistics management.
1982 2007-08-09 Frédéric Bernon, Bill Florac
1983 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
1984 packet on a udp pcb binded on an netif's IP address, and not on "any".
1986 2007-08-09 Frédéric Bernon, Bill Florac
1987 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
1988 This is mainly on using lookup/lookfor, and some coding styles...
1990 2007-07-26 Frédéric Bernon (and "thedoctor")
1991 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
1993 2007-07-25 Simon Goldschmidt
1994 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
1995 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
1996 (tcp_output is called again later from tcp timers).
1998 2007-07-25 Simon Goldschmidt
1999 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2000 copy_from_pbuf, which illegally modified the given pbuf.
2002 2007-07-25 Simon Goldschmidt
2003 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2004 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2006 2007-07-24 Simon Goldschmidt
2007 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2008 correct state (must be CLOSED).
2010 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2011 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2012 allocation. It now returns NULL.
2014 2007-07-13 Frédéric Bernon
2015 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2018 2007-07-13 Frédéric Bernon
2019 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2020 because current code doesn't follow rawapi.txt documentation.
2022 2007-07-13 Kieran Mansley
2023 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2024 out of sequence processing of received packets
2026 2007-07-03 Simon Goldschmidt
2027 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2028 assumption is made that this pbuf is in one piece (i.e. not chained). These
2029 assumptions clash with the possibility of converting to fully pool-based
2030 pbuf implementations, where PBUF_RAM pbufs might be chained.
2032 2007-07-03 Simon Goldschmidt
2033 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2034 when closing tcp netconns: removed conn->sem, less context switches when
2035 closing, both netconn_close and netconn_delete should safely close tcp
2038 2007-07-02 Simon Goldschmidt
2039 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2040 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2041 to cache ARP table indices with each pcb instead of single-entry cache for
2044 2007-07-02 Simon Goldschmidt
2045 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2046 warnings when assigning to smaller types.
2048 2007-06-28 Simon Goldschmidt
2049 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2051 2007-06-28 Simon Goldschmidt
2052 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2053 a segment contained chained pbufs)
2055 2007-06-28 Frédéric Bernon
2056 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2057 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2058 possible to define this macro in your own lwipopts.h to always use C library's
2059 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2061 2007-06-28 Frédéric Bernon
2062 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2063 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2064 in api_lib/api_msg (use pointers and not type with table, etc...)
2066 2007-06-26 Simon Goldschmidt
2067 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2069 2007-06-25 Simon Goldschmidt
2070 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2071 for udp packets with no matching pcb.
2073 2007-06-25 Simon Goldschmidt
2074 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2075 could get udp input packets if the remote side matched.
2077 2007-06-13 Simon Goldschmidt
2078 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2079 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2081 2007-06-13 Simon Goldschmidt
2082 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2083 -> netconn_new_..() does not allocate a new connection for unsupported
2086 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2087 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2088 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2090 2007-06-13 Frédéric Bernon, Matthias Weisser
2091 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2092 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2093 some macro names collision with some OS macros.
2095 2007-06-11 Simon Goldschmidt
2096 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2097 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2098 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2101 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2102 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2103 where TCP flags wasn't initialized in tcp_keepalive.
2105 2007-06-03 Simon Goldschmidt
2106 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2107 registered, p->payload was modified without modifying p->len if sending
2108 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2110 2007-06-03 Simon Goldschmidt
2111 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2112 re-used the input pbuf even if that didn't have enough space to include the
2113 link headers. Now the space is tested and a new pbuf is allocated for the
2114 echo response packet if the echo request pbuf isn't big enough.
2116 2007-06-01 Simon Goldschmidt
2117 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2119 2007-05-23 Frédéric Bernon
2120 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2121 allocated by do_listen if success) and netconn_accept errors handling. In
2122 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2123 by ASSERT, except for netconn_delete.
2125 2007-05-23 Frédéric Bernon
2126 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2127 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2128 directly close the recvmbox).
2130 2007-05-22 Simon Goldschmidt
2131 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2132 bound but unconnected (and non-listening) tcp_pcbs.
2134 2007-05-22 Frédéric Bernon
2135 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2136 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2137 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2138 like "sys_timeout" in their application threads.
2140 2007-05-22 Frédéric Bernon
2141 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2142 which parameters are used by which do_xxx function, and to avoid "misusing"
2143 parameters (patch #5938).
2145 2007-05-22 Simon Goldschmidt
2146 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2147 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2148 is only 8 bits wide. This affects the api, as there, the protocol was
2151 2007-05-18 Simon Goldschmidt
2152 * memp.c: addition to patch #5913: smaller pointer was returned but
2153 memp_memory was the same size -> did not save memory.
2155 2007-05-16 Simon Goldschmidt
2156 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2159 2007-05-16 Simon Goldschmidt
2160 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2161 as the one of the netif used for sending to prevent sending from old
2162 addresses after a netif address gets changed (partly fixes bug #3168).
2164 2007-05-16 Frédéric Bernon
2165 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2166 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2167 tcpip_init) because we have to be sure that network interfaces are already
2168 added (mac filter is updated only in igmp_init for the moment).
2170 2007-05-16 Simon Goldschmidt
2171 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2172 into sys_arch_sem_wait calls to prevent timers from running while waiting
2173 for the heap. This fixes bug #19167.
2175 2007-05-13 Simon Goldschmidt
2176 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2177 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2180 2007-05-07 Simon Goldschmidt
2181 * mem.c: Another attempt to fix bug #17922.
2183 2007-05-04 Simon Goldschmidt
2184 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2185 implementation so that it can be reused (don't allocate the target
2186 pbuf inside pbuf_copy()).
2188 2007-05-04 Simon Goldschmidt
2189 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2190 to save a little RAM (next pointer of memp is not used while not in pool).
2193 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2196 2007-04-23 Simon Goldschmidt
2197 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2198 in NULL reference for incoming TCP packets". Loopif has to be configured
2199 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2200 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2201 putting packets on a list that is fed to the stack by calling loopif_poll()
2202 (single-thread / NO_SYS / polling environment where e.g.
2203 netif->input() = ip_input).
2205 2007-04-17 Jonathan Larmour
2206 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2207 the difference between two u16_t's.
2208 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2209 MEMP_NUM_NETCONN in sockets.c right now.
2211 2007-04-12 Jonathan Larmour
2212 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2214 2007-04-12 Kieran Mansley
2215 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2216 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2218 2007-04-11 Simon Goldschmidt
2219 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2220 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2221 pbuf.c: removed functions no needed any more (by etharp).
2223 2007-04-11 Kieran Mansley
2224 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2225 "Constant is long" warnings with 16bit compilers. Contributed by
2226 avatar@mmlab.cse.yzu.edu.tw
2228 2007-04-05 Frédéric Bernon, Jonathan Larmour
2229 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2230 the mailbox is active". Now, the post is only done during a connect, and do_send,
2231 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2233 2007-04-03 Frédéric Bernon
2234 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2235 packets. See patch #5834.
2237 2007-03-30 Frédéric Bernon
2238 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2239 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2241 2007-03-30 Frédéric Bernon
2242 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2243 others environment defines (these were too "generic").
2245 2007-03-28 Frédéric Bernon
2246 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2247 result and can cause a crash. lwip_send now check netbuf_ref result.
2249 2007-03-28 Simon Goldschmidt
2250 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2251 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2252 defined. This is the way it should have been already (looking at
2255 2007-03-28 Kieran Mansley
2256 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2257 IP and TCP headers *and* physical link headers
2259 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2260 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2261 to send some garbage. It is not a definitive solution, but the patch does solve
2262 the problem for most cases.
2264 2007-03-22 Frédéric Bernon
2265 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2267 2007-03-22 Frédéric Bernon
2268 * api_lib.c: somes resources couldn't be freed if there was errors during
2269 netconn_new_with_proto_and_callback.
2271 2007-03-22 Frédéric Bernon
2272 * ethernetif.c: update netif->input calls to check return value. In older ports,
2273 it's a good idea to upgrade them, even if before, there could be another problem
2274 (access to an uninitialized mailbox).
2276 2007-03-21 Simon Goldschmidt
2277 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2278 by casting to unsigned).
2280 2007-03-21 Frédéric Bernon
2281 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2282 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2283 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2284 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2285 faster and more reliable communication between api_lib and tcpip.
2287 2007-03-21 Frédéric Bernon
2288 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2290 2007-03-21 Frédéric Bernon
2291 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2293 2007-03-21 Kieran Mansley
2294 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2297 2007-03-21 Kieran Mansley
2298 * Fix all uses of pbuf_header to check the return value. In some
2299 cases just assert if it fails as I'm not sure how to fix them, but
2300 this is no worse than before when they would carry on regardless
2303 2007-03-21 Kieran Mansley
2304 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2305 comment out missing header include in icmp.c
2307 2007-03-20 Frédéric Bernon
2308 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2309 synchronized with memp.h.
2311 2007-03-20 Frédéric Bernon
2312 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2313 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2314 network interfaces. Also fix a compiler warning.
2316 2007-03-20 Kieran Mansley
2317 * udp.c: Only try and use pbuf_header() to make space for headers if
2318 not a ROM or REF pbuf.
2320 2007-03-19 Frédéric Bernon
2321 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2324 2007-03-19 Frédéric Bernon
2325 * Remove unimplemented "memp_realloc" function from memp.h.
2327 2007-03-11 Simon Goldschmidt
2328 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2331 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2332 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2333 (missing `const' qualifier in socket functions), to get more compatible to
2334 standard POSIX sockets.
2336 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2337 * sockets.c: Add asserts inside bind, connect and sendto to check input
2338 parameters. Remove excessive set_errno() calls after get_socket(), because
2339 errno is set inside of get_socket(). Move last sock_set_errno() inside
2342 2007-03-09 Simon Goldschmidt
2343 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2344 was allocated too small.
2346 2007-03-06 Simon Goldschmidt
2347 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2348 the stack from concurrent access.
2350 2007-03-06 Frédéric Bernon, Dmitry Potapov
2351 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2352 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2354 2007-03-06 Simon Goldschmidt
2355 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2356 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2358 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2359 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2360 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2361 Allow to do ARP processing for incoming packets inside tcpip_thread
2362 (protecting ARP layer against concurrent access). You can also disable
2363 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2364 Older ports have to use tcpip_ethinput.
2366 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2367 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2368 from pointer target type"
2370 2007-03-05 Frédéric Bernon
2371 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2372 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2374 2007-03-04 Frédéric Bernon
2375 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2378 2007-03-04 Frédéric Bernon
2379 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2381 The api_msg struct stay on the stack (not moved to netconn struct).
2383 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2384 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2385 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2386 Also fixed cast warning in pbuf_alloc()
2388 2007-03-04 Simon Goldschmidt
2389 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2390 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2392 2007-03-03 Frédéric Bernon
2393 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2394 It is static, and never used in udp.c except udp_init().
2396 2007-03-02 Simon Goldschmidt
2397 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2398 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2399 initialized before tcpip_thread is running (e.g. before OS is started)
2401 2007-03-02 Frédéric Bernon
2402 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2405 2007-02-28 Kieran Mansley
2406 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2407 outside the region of the pbuf by pbuf_header()
2409 2007-02-28 Kieran Mansley
2410 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2411 when supplied timeout is also non-zero
2415 2006-12-05 Leon Woestenberg
2416 * CHANGELOG: Mention STABLE-1.2.0 release.
2420 2006-12-01 Christiaan Simons
2421 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2422 Note this is a workaround. Currently I have no other options left.
2424 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2425 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2426 to include/lwip/opt.h.
2427 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2428 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2429 * opt.h: Add above new options.
2431 2006-08-18 Christiaan Simons
2432 * tcp_{in,out}.c: added SNMP counters.
2433 * ipv4/ip.c: added SNMP counters.
2434 * ipv4/ip_frag.c: added SNMP counters.
2436 2006-08-08 Christiaan Simons
2437 * etharp.{c,h}: added etharp_find_addr() to read
2438 (stable) ethernet/IP address pair from ARP table
2440 2006-07-14 Christiaan Simons
2441 * mib_structs.c: added
2442 * include/lwip/snmp_structs.h: added
2443 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2445 2006-07-06 Christiaan Simons
2446 * snmp/asn1_{enc,dec}.c added
2448 * snmp/msg_{in,out}.c added
2449 * include/lwip/snmp_asn1.h added
2450 * include/lwip/snmp_msg.h added
2451 * doc/snmp_agent.txt added
2453 2006-03-29 Christiaan Simons
2454 * inet.c, inet.h: Added platform byteswap support.
2455 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2456 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2460 2006-11-30 Christiaan Simons
2461 * dhcp.c: Fixed false triggers of request_timeout.
2463 2006-11-28 Christiaan Simons
2464 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2466 2006-10-11 Christiaan Simons
2467 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2468 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2469 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2470 identifier from 170 to 136 (bug #17574).
2472 2006-10-10 Christiaan Simons
2473 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2475 2006-08-17 Christiaan Simons
2476 * udp.c: Fixed bug #17200, added check for broadcast
2477 destinations for PCBs bound to a unicast address.
2479 2006-08-07 Christiaan Simons
2480 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2482 2006-06-27 Christiaan Simons
2483 * api_msg.c: Applied patch for cold case (bug #11135).
2484 In accept_function() ensure newconn->callback is always initialized.
2486 2006-06-15 Christiaan Simons
2487 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2488 facilitate printing of mem_size_t and u16_t statistics.
2490 2006-06-14 Christiaan Simons
2491 * api_msg.c: Applied patch #5146 to handle allocation failures
2492 in accept() by Kevin Lawson.
2494 2006-05-26 Christiaan Simons
2495 * api_lib.c: Removed conn->sem creation and destruction
2496 from netconn_write() and added sys_sem_new to netconn_new_*.
2500 2006-03-03 Christiaan Simons
2501 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2502 access and added pbuf_alloc() return value checks.
2504 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2505 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2506 now handled by the checksum routine properly.
2508 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2509 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2510 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2512 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2513 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2514 submitted by Mitrani Hiroshi.
2516 2005-12-15 Christiaan Simons
2517 * inet.c: Disabled the added summing routine to preserve code space.
2519 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2520 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2521 Added Curt McDowell's optimized checksumming routine for future
2522 inclusion. Need to create test case for unaliged, aligned, odd,
2523 even length combination of cases on various endianess machines.
2525 2005-12-09 Christiaan Simons
2526 * inet.c: Rewrote standard checksum routine in proper portable C.
2528 2005-11-25 Christiaan Simons
2529 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2530 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2531 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2533 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2534 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2535 routine by Peter Jolasson.
2536 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2538 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2539 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2540 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2542 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2543 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2545 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2546 * udp.c: UDP pcb->recv() was called even when it was NULL.
2550 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2551 * etharp.*: Disabled multiple packets on the ARP queue.
2552 This clashes with TCP queueing.
2554 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2555 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2556 Halved the ARP period, doubled the period counts.
2557 ETHARP_MAX_PENDING now should be at least 2. This prevents
2558 the counter from reaching 0 right away (which would allow
2559 too little time for ARP responses to be received).
2561 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2562 * dhcp.c: Decline messages were not multicast but unicast.
2563 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2564 Do not try hard to insert arbitrary packet's source address,
2565 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2566 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2567 querying an address will see it appear in the cache (DHCP could
2568 suffer from this when a server invalidly gave an in-use address.)
2569 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2570 comparing network addresses (identifiers), not the network masks
2572 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2573 IP address actually belongs to the network of the given interface.
2575 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2576 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2580 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2581 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2582 even if one is already pending, if the rcv_wnd is above a threshold
2583 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2584 delayed ACK in order to open the window if the stack is only receiving data.
2586 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2587 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2589 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2590 * etharp.c: Make sure the first pbuf queued on an ARP entry
2591 is properly ref counted.
2593 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2594 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2595 warnings about comparison.
2596 * pbuf.c: Stopped compiler complaining of empty if statement
2597 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2598 * tcp.c: Stopped compiler complaining of empty if statement
2599 when LWIP_DEBUGF() empty.
2600 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2601 * inet.c: Added a couple of casts to quiet the compiler.
2602 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2604 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2605 * inet.c: Made data types consistent in inet_ntoa().
2606 Added casts for return values of checksum routines, to pacify compiler.
2607 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2608 Small corrections to some debugging statements, to pacify compiler.
2610 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2611 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2612 * ethernetif.c Updated low_level_output() to match prototype for
2613 netif->linkoutput and changed low_level_input() similarly for consistency.
2614 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2615 of raw_recv() in raw.h and so avoid compiler error.
2616 * sockets.c: Added trivial (int) cast to keep compiler happier.
2617 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2623 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2624 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2625 your cc.h file defines this either 1 or 0. If non-defined,
2627 * .c: Added <string.h> and <errno.h> includes where used.
2628 * etharp.c: Made some array indices unsigned.
2630 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2631 * netif.*: Added netif_set_up()/down().
2632 * dhcp.c: Changes to restart program flow.
2634 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2636 single-pass lookup for different candidates. Should exploit locality.
2638 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2639 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2640 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2641 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2642 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2646 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2647 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2648 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2649 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2650 is to prefix the 14-bit Ethernet headers with two padding bytes.
2652 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2653 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2654 * etharp.c: Fixed the case where the packet that initiates the ARP request
2655 is not queued, and gets lost. Fixed the case where the packets destination
2656 address is already known; we now always queue the packet and perform an ARP
2663 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2664 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2665 * Fixed two possible NULL references in rare cases.
2671 * Fixed DHCP which did not include the IP address in DECLINE messages.
2675 * etharp.c has been hauled over a bit.
2681 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2682 * Packets sent from ARP queue had invalid source hardware address.
2686 * Pass-by ARP requests do now update the cache.
2690 * No longer dependent on ctype.h.
2691 * New socket options.
2692 * Raw IP pcb support.
2698 * Some debug formatters and casts fixed.
2699 * Numereous fixes in PPP.
2703 * DEBUGF now is LWIP_DEBUGF
2704 * pbuf_dechain() has been re-enabled.
2705 * Mentioned the changed use of CVS branches in README.
2711 * Fixed pool pbuf memory leak in pbuf_alloc().
2712 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2713 Reported by Savin Zlobec.
2715 * PBUF_POOL chains had their tot_len field not set for non-first
2716 pbufs. Fixed in pbuf_alloc().
2720 * Added PPP stack contributed by Marc Boucher
2724 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2726 * ARP queueuing now queues the latest packet instead of the first.
2727 This is the RFC recommended behaviour, but can be overridden in
2734 * TCP has been fixed to deal with the new use of the pbuf->ref
2737 * DHCP dhcp_inform() crash bug fixed.
2741 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2742 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2743 Implemented by David Haas.
2749 * The packet buffer implementation has been enhanced to support
2750 zero-copy and copy-on-demand for packet buffers which have their
2751 payloads in application-managed memory.
2752 Implemented by David Haas.
2754 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2755 if an outgoing packet can be directly sent on the link, or perform
2756 a copy-on-demand when necessary.
2758 The application can safely assume the packet is sent, and the RAM
2759 is available to the application directly after calling udp_send()
2760 or similar function.
2764 * ARP_QUEUEING should now correctly work for all cases, including
2766 Implemented by Leon Woestenberg.
2770 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2771 to a '0.0.0.0' IP address.
2773 * The packet buffer implementation is changed. The pbuf->ref counter
2774 meaning has changed, and several pbuf functions have been
2775 adapted accordingly.
2777 * netif drivers have to be changed to set the hardware address length field
2778 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2779 See the contrib/ports/c16x cs8900 driver as a driver example.
2781 * netif's have a dhcp field that must be initialized to NULL by the driver.
2782 See the contrib/ports/c16x cs8900 driver as a driver example.
2784 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2785 logged in CVS but have not been explained here.
2787 (0.5.3) Changes since version 0.5.2
2791 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2792 threads because it wasn't protected by semaphores.
2796 * struct ip_addr now packed.
2798 * The name of the time variable in arp.c has been changed to ctime
2799 to avoid conflicts with the time() function.
2801 (0.5.2) Changes since version 0.5.1
2805 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2809 * A bug in tcp_parseopt() could cause the stack to hang because of a
2810 malformed TCP option.
2812 * The address of new connections in the accept() function in the BSD
2813 socket library was not handled correctly.
2815 * pbuf_dechain() did not update the ->tot_len field of the tail.
2817 * Aborted TCP connections were not handled correctly in all
2822 * All protocol header structs are now packed.
2824 * The ->len field in the tcp_seg structure now counts the actual
2825 amount of data, and does not add one for SYN and FIN segments.
2827 (0.5.1) Changes since version 0.5.0
2831 * Possible to run as a user process under Linux.
2833 * Preliminary support for cross platform packed structs.
2835 * ARP timer now implemented.
2839 * TCP output queue length was badly initialized when opening
2842 * TCP delayed ACKs were not sent correctly.
2844 * Explicit initialization of BSS segment variables.
2846 * read() in BSD socket library could drop data.
2848 * Problems with memory alignment.
2850 * Situations when all TCP buffers were used could lead to
2853 * TCP MSS option wasn't parsed correctly.
2855 * Problems with UDP checksum calculation.
2857 * IP multicast address tests had endianess problems.
2859 * ARP requests had wrong destination hardware address.
2863 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2865 * A ->linkoutput() member was added to struct netif.
2867 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2869 * ntoh* macros are now null definitions for big endian CPUs.
2871 (0.5.0) Changes since version 0.4.2
2875 * Redesigned operating system emulation layer to make porting easier.
2877 * Better control over TCP output buffers.
2879 * Documenation added.
2883 * Locking issues in buffer management.
2885 * Bugfixes in the sequential API.
2887 * IP forwarding could cause memory leakage. This has been fixed.
2891 * Directory structure somewhat changed; the core/ tree has been
2894 (0.4.2) Changes since version 0.4.1
2898 * Experimental ARP implementation added.
2900 * Skeleton Ethernet driver added.
2902 * Experimental BSD socket API library added.
2906 * In very intense situations, memory leakage could occur. This has
2911 * Variables named "data" and "code" have been renamed in order to
2912 avoid name conflicts in certain compilers.
2914 * Variable++ have in appliciable cases been translated to ++variable
2915 since some compilers generate better code in the latter case.
2917 (0.4.1) Changes since version 0.4
2921 * TCP: Connection attempts time out earlier than data
2922 transmissions. Nagle algorithm implemented. Push flag set on the
2923 last segment in a burst.
2925 * UDP: experimental support for UDP-Lite extensions.
2929 * TCP: out of order segments were in some cases handled incorrectly,
2930 and this has now been fixed. Delayed acknowledgements was broken
2931 in 0.4, has now been fixed. Binding to an address that is in use
2932 now results in an error. Reset connections sometimes hung an
2933 application; this has been fixed.
2935 * Checksum calculation sometimes failed for chained pbufs with odd
2936 lengths. This has been fixed.
2938 * API: a lot of bug fixes in the API. The UDP API has been improved
2939 and tested. Error reporting and handling has been
2940 improved. Logical flaws and race conditions for incoming TCP
2941 connections has been found and removed.
2943 * Memory manager: alignment issues. Reallocating memory sometimes
2944 failed, this has been fixed.
2946 * Generic library: bcopy was flawed and has been fixed.
2950 * API: all datatypes has been changed from generic ones such as
2951 ints, to specified ones such as u16_t. Functions that return
2952 errors now have the correct type (err_t).
2954 * General: A lot of code cleaned up and debugging code removed. Many
2955 portability issues have been fixed.
2957 * The license was changed; the advertising clause was removed.
2961 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
2962 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
2965 (0.4) Changes since version 0.3.1
2967 * Memory management has been radically changed; instead of
2968 allocating memory from a shared heap, memory for objects that are
2969 rapidly allocated and deallocated is now kept in pools. Allocation
2970 and deallocation from those memory pools is very fast. The shared
2971 heap is still present but is used less frequently.
2973 * The memory, memory pool, and packet buffer subsystems now support
2974 4-, 2-, or 1-byte alignment.
2976 * "Out of memory" situations are handled in a more robust way.
2978 * Stack usage has been reduced.
2980 * Easier configuration of lwIP parameters such as memory usage,
2981 TTLs, statistics gathering, etc. All configuration parameters are
2982 now kept in a single header file "lwipopts.h".
2984 * The directory structure has been changed slightly so that all
2985 architecture specific files are kept under the src/arch
2988 * Error propagation has been improved, both in the protocol modules
2991 * The code for the RTXC architecture has been implemented, tested
2994 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
2995 the Internet checksum modules.
2997 * Bugs related to porting between a 32-bit and a 16-bit architecture
2998 have been found and corrected.
3000 * The license has been changed slightly to conform more with the
3001 original BSD license, including the advertisement clause.
3003 (0.3.1) Changes since version 0.3
3005 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3006 RAM never returned the RAM when the pbuf was deallocated.
3008 * TCP congestion control, window updates and retransmissions did not
3009 work correctly. This has now been fixed.
3011 * Bugfixes in the API.
3013 (0.3) Changes since version 0.2
3015 * New and improved directory structure. All include files are now
3016 kept in a dedicated include/ directory.
3018 * The API now has proper error handling. A new function,
3019 netconn_err(), now returns an error code for the connection in
3022 * Improvements in the memory management subsystem. The system now
3023 keeps a pointer to the lowest free memory block. A new function,
3024 mem_malloc2() tries to allocate memory once, and if it fails tries
3025 to free some memory and retry the allocation.
3027 * Much testing has been done with limited memory
3028 configurations. lwIP now does a better job when overloaded.
3030 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3032 * Many bugfixes in the TCP code:
3034 - Fixed a bug in tcp_close().
3036 - The TCP receive window was incorrectly closed when out of
3037 sequence segments was received. This has been fixed.
3039 - Connections are now timed-out of the FIN-WAIT-2 state.
3041 - The initial congestion window could in some cases be too
3042 large. This has been fixed.
3044 - The retransmission queue could in some cases be screwed up. This
3047 - TCP RST flag now handled correctly.
3049 - Out of sequence data was in some cases never delivered to the
3050 application. This has been fixed.
3052 - Retransmitted segments now contain the correct acknowledgment
3053 number and advertised window.
3055 - TCP retransmission timeout backoffs are not correctly computed
3056 (ala BSD). After a number of retransmissions, TCP now gives up
3059 * TCP connections now are kept on three lists, one for active
3060 connections, one for listening connections, and one for
3061 connections that are in TIME-WAIT. This greatly speeds up the fast
3062 timeout processing for sending delayed ACKs.
3064 * TCP now provides proper feedback to the application when a
3065 connection has been successfully set up.
3067 * More comments have been added to the code. The code has also been
3068 somewhat cleaned up.
3070 (0.2) Initial public release.