5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-24: Simon Goldschmidt
10 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
12 2011-07-26: Simon Goldschmidt
13 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
14 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
16 2011-07-21: Simon Goldschmidt (patch by hanhui)
17 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
18 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
19 Also added code to allow ip_forward() to forward non-broadcast packets to
20 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
22 2011-07-21: Simon Goldschmidt
23 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
24 ioctl/FIONREAD return the size of the next pending datagram.
26 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
27 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
30 2011-05-25: Simon Goldschmidt
31 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
32 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
33 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
34 code so that the code is more readable.
36 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
37 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
38 Ivan! (this is work in progress: we're just post release anyway :-)
40 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
41 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
47 2011-09-01: Simon Goldschmidt
48 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
51 2011-09-01: Simon Goldschmidt
52 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
54 2011-08-24: Simon Goldschmidt
55 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
57 2011-08-24: Simon Goldschmidt
58 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
59 accept() on UDP connections
61 2011-08-24: Simon Goldschmidt
62 * sockets.h: fixed bug #34057 socklen_t should be a typedef
64 2011-08-24: Simon Goldschmidt
65 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
67 2011-08-24: Simon Goldschmidt
68 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
70 2011-08-24: Simon Goldschmidt
71 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
73 2011-08-22: Simon Goldschmidt
74 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
75 merely prevents nagle from not transmitting fast after closing.)
77 2011-07-22: Simon Goldschmidt
78 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
79 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
80 lwip_send() sends as much as possible for non-blocking sockets
82 2011-07-22: Simon Goldschmidt
83 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
84 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
85 at regular intervals from main level.
87 2011-07-21: Simon Goldschmidt
88 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
89 sending an ARP request when an ARP entry is used in the last minute before
92 2011-07-04: Simon Goldschmidt
93 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
95 2011-06-26: Simon Goldschmidt
96 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
97 updating its documentation only.
99 2011-06-26: Simon Goldschmidt
100 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
103 2011-06-26: Simon Goldschmidt
104 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
112 2011-03-27: Simon Goldschmidt
113 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
114 calculate it in tcp_zero_window_probe (the only place where it was used).
116 2010-11-21: Simon Goldschmidt
117 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
120 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
121 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
122 IP_MULTICAST_LOOP at socket- and raw-API level.
124 2010-06-16: Simon Goldschmidt
125 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
126 link-layer-addressed UDP traffic to be received while a netif is down (just
127 like DHCP during configuration)
129 2010-05-22: Simon Goldschmidt
130 * many many files: bug #27352: removed packing from ip_addr_t, the packed
131 version is now only used in protocol headers. Added global storage for
132 current src/dest IP address while in input functions.
134 2010-05-16: Simon Goldschmidt
135 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
136 calculation (and use them throughout the stack where applicable)
138 2010-05-16: Simon Goldschmidt
139 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
140 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
142 2010-05-16: Simon Goldschmidt
143 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
144 MEMP pool instead of the heap
146 2010-05-13: Simon Goldschmidt
147 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
148 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
149 packets to more than one pcb.
151 2010-05-02: Simon Goldschmidt
152 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
153 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
155 2010-04-30: Simon Goldschmidt
156 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
157 take a precalculated checksum, added pbuf_fill_chksum() to copy data
158 into a pbuf and at the same time calculating the checksum for that data
160 2010-04-29: Simon Goldschmidt
161 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
162 2-byte-aligned IP addresses and MAC addresses
164 2010-04-28: Patch by Bill Auerbach
165 * ip.c: Inline generating IP checksum to save a function call
167 2010-04-14: Simon Goldschmidt
168 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
169 tcpip_thread processes messages or timeouts to implement a watchdog.
171 2010-03-28: Simon Goldschmidt
172 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
173 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
175 2010-03-27: Simon Goldschmidt
176 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
177 etharp_query to prevent unnecessary function calls (inspired by
180 2010-03-20: Simon Goldschmidt
181 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
182 since the linker cannot do this automatically to save space.
184 2010-03-20: Simon Goldschmidt
185 * opt.h, etharp.c/.h: Added support for static ARP table entries
187 2010-03-14: Simon Goldschmidt
188 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
189 when creating TCP segments, not when (re-)transmitting them.
191 2010-03-07: Simon Goldschmidt
192 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
193 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
194 This should speed up receiving data on sockets as the select code in
195 event_callback is only executed when select is waiting.
197 2010-03-06: Simon Goldschmidt
198 * tcp_out.c: task #7013 (Create option to have all packets delivered to
199 netif->output in one piece): Always copy to try to create single pbufs
202 2010-03-06: Simon Goldschmidt
203 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
204 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
205 for tcp netconns to receive pbufs, not netbufs; use that function
208 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
209 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
210 Work on tcp_enqueue: Don't waste memory when chaining segments,
211 added option TCP_OVERSIZE to prevent creating many small pbufs when
212 calling tcp_write with many small blocks of data. Instead, pbufs are
213 allocated larger than needed and the space is used for later calls to
216 2010-02-21: Simon Goldschmidt
217 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
220 2010-02-21: Simon Goldschmidt
221 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
222 implementation of tcp to make API usage cleare to application programmers
224 2010-02-14: Simon Goldschmidt/Stephane Lesage
225 * ip_addr.h: Improved some defines working on ip addresses, added faster
226 macro to copy addresses that cannot be NULL
228 2010-02-13: Simon Goldschmidt
229 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
230 blocking send operation)
232 2010-02-12: Simon Goldschmidt
233 * sockets.c/.h: Added a minimal version of posix fctl() to have a
234 standardised way to set O_NONBLOCK for nonblocking sockets.
236 2010-02-12: Simon Goldschmidt
237 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
238 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
239 and dhcp work with user-allocated structs instead of callin mem_malloc
241 2010-02-12: Simon Goldschmidt/Jeff Barber
242 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
243 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
245 2010-02-12: Simon Goldschmidt
246 * sys layer: task #10139 (Prefer statically allocated memory): converted
247 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
248 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
249 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
250 to let sys.h use binary semaphores instead of mutexes - as before)
252 2010-02-09: Simon Goldschmidt (Simon Kallweit)
253 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
254 (Restart system timeout handling)
256 2010-02-09: Simon Goldschmidt
257 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
258 netif.c) - loopif does not have to be created by the port any more,
259 just define LWIP_HAVE_LOOPIF to 1.
261 2010-02-08: Simon Goldschmidt
262 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
263 inet_ntoa_r/ipaddr_ntoa_r
265 2010-02-08: Simon Goldschmidt
266 * netif.h: Added netif_s/get_igmp_mac_filter() macros
268 2010-02-05: Simon Goldschmidt
269 * netif.h: Added function-like macros to get/set the hostname on a netif
271 2010-02-04: Simon Goldschmidt
272 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
273 make changing the actual implementation behind the typedef easier.
275 2010-02-01: Simon Goldschmidt
276 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
277 for allocating memory when getaddrinfo() is called.
279 2010-01-31: Simon Goldschmidt
280 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
281 them once instead of parsing for every option. This also removes
282 the need for mem_malloc from dhcp_recv and makes it possible to
283 correctly retrieve the BOOTP file.
285 2010-01-30: simon Goldschmidt
286 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
289 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
290 * api.h, api_msg.c, sockets.c: Added except set support in select
293 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
294 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
295 Add non-blocking support for connect (partly from patch #6860),
296 plus many cleanups in socket & netconn API.
298 2010-01-27: Simon Goldschmidt
299 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
300 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
302 2010-01-26: Simon Goldschmidt
303 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
305 2010-01-14: Simon Goldschmidt
306 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
307 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
309 2010-01-13: Simon Goldschmidt
310 * mem.c: The heap now may be moved to user-defined memory by defining
311 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
312 (patch #6966 and bug #26133)
314 2010-01-10: Simon Goldschmidt (Bill Auerbach)
315 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
318 2010-01-10: Simon Goldschmidt
319 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
320 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
322 2009-12-31: Simon Goldschmidt
323 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
324 added timers.c/.h: Separated timer implementation from semaphore/mbox
325 implementation, moved timer implementation to timers.c/.h, timers are
326 now only called from tcpip_thread or by explicitly checking them.
329 2009-12-27: Simon Goldschmidt
330 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
331 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
336 2011-04-20: Simon Goldschmidt
337 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
339 2011-04-13: Simon Goldschmidt
340 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
341 using ports in the IANA private/dynamic range (49152 through 65535).
343 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
344 * etharp.h/.c: Fixed broken VLAN support.
346 2011-03-27: Simon Goldschmidt
347 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
348 pcbs) by checking if the pcb was bound (local_port != 0).
350 2011-03-27: Simon Goldschmidt
351 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
353 2011-03-27: Simon Goldschmidt
354 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
355 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
357 2011-03-27: Simon Goldschmidt
358 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
359 is present never times out) by starting retransmission timer before checking
362 2011-03-22: Simon Goldschmidt
363 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
364 calling sio_read_abort() if the file descriptor is valid.
366 2011-03-14: Simon Goldschmidt
367 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
368 more than once can render a socket useless) since it mainly involves changing
369 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
371 2011-03-13: Simon Goldschmidt
372 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
373 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
374 use EALRADY instead of -1
376 2011-03-13: Simon Goldschmidt
377 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
378 connection has been aborted by err_tcp (since this is not a normal closing
381 2011-03-13: Simon Goldschmidt
382 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
383 with pcb->state != CLOSED
385 2011-02-17: Simon Goldschmidt
386 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
389 2011-02-17: Simon Goldschmidt
390 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
392 2011-01-24: Simon Goldschmidt
393 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
395 2010-12-02: Simon Goldschmidt
396 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
398 2010-11-23: Simon Goldschmidt
399 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
400 LWIP_SO_RCVBUF and ioctl/FIONREAD.
402 2010-11-23: Simon Goldschmidt
403 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
404 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
406 2010-11-23: Simon Goldschmidt
407 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
408 refusing 'refused_data' again.
410 2010-11-22: Simon Goldschmidt
411 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
412 after a successful nonblocking connection.
414 2010-11-22: Simon Goldschmidt
415 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
416 must be sent link-local
418 2010-11-22: Simon Goldschmidt
419 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
422 2010-11-20: Simon Goldschmidt
423 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
425 2010-11-20: Simon Goldschmidt
426 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
427 resemble other stacks.
429 2010-11-20: Simon Goldschmidt
430 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
431 no-copy TCP writes will never succeed.
433 2010-11-20: Simon Goldschmidt
434 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
435 not match documentation: return ERR_ARG instead of ERR_VAL if not
436 initialized or wrong argument.
438 2010-10-20: Simon Goldschmidt
439 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
441 2010-10-05: Simon Goldschmidt
442 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
443 replugging the network cable after an AutoIP address was assigned.
445 2010-08-10: Simon Goldschmidt
446 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
448 2010-08-03: Simon Goldschmidt
449 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
451 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
452 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
453 endian architectures)
455 2010-07-28: Simon Goldschmidt
456 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
459 2010-07-27: Simon Goldschmidt
460 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
461 harm but never did anything
463 2010-07-21: Simon Goldschmidt
464 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
467 2010-07-16: Kieran Mansley
468 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
470 2010-07-10: Simon Goldschmidt
471 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
473 2010-06-30: Simon Goldschmidt
474 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
477 2010-06-28: Kieran Mansley
478 * timers.c remove unportable printing of C function pointers
480 2010-06-24: Simon Goldschmidt
481 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
482 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
484 2010-06-24: Simon Goldschmidt
485 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
486 implemented shutdown at socket level.
488 2010-06-21: Simon Goldschmidt
489 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
490 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
491 custom pbufs that reference other (original) pbufs. Additionally set
492 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
494 2010-06-15: Simon Goldschmidt
495 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
497 2010-06-14: Simon Goldschmidt
498 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
500 2010-06-12: Simon Goldschmidt
501 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
504 2010-05-17: Simon Goldschmidt
505 * netdb.c: Correctly NULL-terminate h_addr_list
507 2010-05-16: Simon Goldschmidt
508 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
509 "symbol already defined" i.e. when linking to winsock
511 2010-05-05: Simon Goldschmidt
512 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
515 2010-04-21: Simon Goldschmidt
516 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
519 2010-03-28: Luca Ceresoli
520 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
522 2010-03-27: Luca Ceresoli
523 * mib2.c: patch #7130: remove meaningless const qualifiers
525 2010-03-26: Simon Goldschmidt
526 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
528 2010-03-26: Simon Goldschmidt
529 * various files: Fixed compiling with different options disabled (TCP/UDP),
530 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
532 2010-03-25: Simon Goldschmidt
533 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
535 2010-03-25: Simon Goldschmidt
536 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
537 overrunning our rcv_wnd in ooseq case.
539 2010-03-22: Simon Goldschmidt
540 * tcp.c: tcp_listen() did not copy the pcb's prio.
542 2010-03-19: Simon Goldschmidt
543 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
545 2010-03-14: Simon Goldschmidt
546 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
547 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
548 and basing PBUF_LINK_HLEN on it.
550 2010-03-08: Simon Goldschmidt
551 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
552 when assiging routable address): when checking incoming packets and
553 aborting existing connection on address change, filter out link-local
556 2010-03-06: Simon Goldschmidt
557 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
559 2010-03-06: Simon Goldschmidt
560 * ipv4/ip.c: Don't try to forward link-local addresses
562 2010-03-06: Simon Goldschmidt
563 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
566 2010-03-05: Simon Goldschmidt
567 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
570 2010-03-05: Simon Goldschmidt
571 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
572 into multiple calls to tcp_write.
574 2010-02-21: Simon Goldschmidt
575 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
576 the implementation of DNS_USES_STATIC_BUF==1)
578 2010-02-20: Simon Goldschmidt
579 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
580 close() vs. shutdown(). Now the application does not get any more
581 recv callbacks after calling tcp_close(). Added tcp_shutdown().
583 2010-02-19: Simon Goldschmidt
584 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
585 confusion with realloc()
587 2010-02-15: Simon Goldschmidt/Stephane Lesage
588 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
591 2010-02-14: Simon Goldschmidt
592 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
593 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
594 admin-status of a netif are up
596 2010-02-14: Simon Goldschmidt
597 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
598 reception and is not really necessary
600 2010-02-14: Simon Goldschmidt
601 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
602 request was directed as us (RFC 826, Packet Reception), otherwise
603 only update existing entries; internalized some functions
605 2010-02-14: Simon Goldschmidt
606 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
607 disabled on netif used for PPPoE) by adding a new netif flag
608 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
609 device but prevents usage of ARP (so that ethernet_input can be used
612 2010-02-12: Simon Goldschmidt
613 * netif.c: netif_set_link_up/down: only do something if the link state
616 2010-02-12: Simon Goldschmidt/Stephane Lesage
617 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
620 2010-02-12: Simon Goldschmidt
621 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
623 2010-02-09: Simon Goldschmidt
624 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
625 (recv() makes receive window update for data that wasn't received by
628 2010-02-09: Simon Goldschmidt/Stephane Lesage
629 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
630 or any netconn_recv() error)
632 2010-02-09: Simon Goldschmidt
633 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
635 2010-02-09: Simon Goldschmidt
636 * netif.c: For loopback packets, adjust the stats- and snmp-counters
637 for the loopback netif.
639 2010-02-08: Simon Goldschmidt
640 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
641 since they are not used anywhere else.
643 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
644 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
645 (patch from bug #28798)
647 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
648 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
649 another bug when LWIP_RAND() returns zero.
651 2010-02-04: Simon Goldschmidt
652 * nearly every file: Use macros defined in ip_addr.h (some of them new)
653 to work with IP addresses (preparation for bug #27352 - Change ip_addr
654 from struct to typedef (u32_t) - and better code).
656 2010-01-31: Simon Goldschmidt
657 * netif.c: Don't call the link-callback from netif_set_up/down() since
658 this invalidly retriggers DHCP.
660 2010-01-29: Simon Goldschmidt
661 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
662 portability file inet.h and its contents from the stack: moved htonX-
663 functions to def.h (and the new def.c - they are not ipv4 dependent),
664 let inet.h depend on ip_addr.h and not the other way round.
665 This fixes bug #28732.
667 2010-01-28: Kieran Mansley
668 * tcp.c: Ensure ssthresh >= 2*MSS
670 2010-01-27: Simon Goldschmidt
671 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
672 callback can lead to accessing unallocated memory. As a consequence,
673 ERR_ABRT means the application has called tcp_abort()!
675 2010-01-25: Simon Goldschmidt
676 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
677 not implemented in SNMP): write-only or not-accessible are still
678 returned by getnext (though not by get)
680 2010-01-24: Simon Goldschmidt
681 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
682 not use reserved C/C++ keywords
684 2010-01-23: Simon Goldschmidt
685 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
688 2010-01-21: Simon Goldschmidt
689 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
690 if tcp_enqueue fails) both in raw- and netconn-API
692 2010-01-19: Simon Goldschmidt
693 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
695 2010-01-18: Iordan Neshev/Simon Goldschmidt
696 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
697 bugfix backports from 2.4.x.
699 2010-01-18: Simon Goldschmidt
700 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
702 2010-01-17: Simon Goldschmidt
703 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
704 task #10102: "netconn: clean up conn->err threading issues" by adding
705 error return value to struct api_msg_msg
707 2010-01-17: Simon Goldschmidt
708 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
709 to return err_t (bugs #27709 and #28087)
711 2010-01-14: Simon Goldschmidt
712 * ...: Use typedef for function prototypes throughout the stack.
714 2010-01-13: Simon Goldschmidt
715 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
716 window = 0) by correctly draining recvmbox/acceptmbox
718 2010-01-11: Simon Goldschmidt
719 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
720 erroneous callbacks) by copying the code from recent pppd
722 2010-01-10: Simon Goldschmidt
723 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
725 2010-01-10: Simon Goldschmidt
726 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
728 2010-01-08: Simon Goldschmidt
729 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
731 2010-01-08: Simon Goldschmidt
732 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
733 passed to dns_local_addhost() might be volatile
735 2010-01-07: Simon Goldschmidt
736 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
738 2010-01-06: Simon Goldschmidt
739 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
741 2009-12-31: Simon Goldschmidt
742 * many ppp files: Reorganised PPP source code from ucip structure to pppd
743 structure to easily compare our code against the pppd code (around v2.3.1)
745 2009-12-27: Simon Goldschmidt
746 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
754 2009-10-27 Simon Goldschmidt/Stephan Lesage
755 * netifapi.c/.h: Added netifapi_netif_set_addr()
757 2009-10-07 Simon Goldschmidt/Fabian Koch
758 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
759 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
761 2009-08-26 Simon Goldschmidt/Simon Kallweit
762 * slipif.c/.h: bug #26397: SLIP polling support
764 2009-08-25 Simon Goldschmidt
765 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
766 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
768 2009-08-25 Simon Goldschmidt
769 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
771 2009-08-24 Jakob Stoklund Olesen
772 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
773 to netif_set_link_up().
775 2009-08-23 Simon Goldschmidt
776 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
777 to a human-readable string.
781 2009-12-24: Kieran Mansley
782 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
785 2009-12-06: Simon Goldschmidt
786 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
787 be statically allocated (like in ucip)
789 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
790 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
792 2009-12-03: Simon Goldschmidt
793 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
794 could have non-zero length
796 2009-12-02: Simon Goldschmidt
797 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
798 tcp_input_pcb until after calling the pcb's callbacks
800 2009-11-29: Simon Goldschmidt
801 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
802 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
804 2009-11-29: Simon Goldschmidt
805 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
806 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
808 2009-11-26: Simon Goldschmidt
809 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
812 2009-11-26: Simon Goldschmidt
813 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
814 algorithm at PCB level
816 2009-11-22: Simon Goldschmidt
817 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
819 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
820 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
821 reusing time-wait pcb
823 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
824 * sockets.c: Fixed bug #28062: Data received directly after accepting
825 does not wake up select
827 2009-11-11: Simon Goldschmidt
828 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
830 2009-10-30: Simon Goldschmidt
831 * opt.h: Increased default value for TCP_MSS to 536, updated default
832 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
834 2009-10-28: Kieran Mansley
835 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
836 to follow algorithm from TCP/IP Illustrated
838 2009-10-27: Kieran Mansley
839 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
841 2009-10-25: Simon Goldschmidt
842 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
843 pcb->recv is NULL to keep rcv_wnd correct)
845 2009-10-25: Simon Goldschmidt
846 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
848 2009-10-23: Simon Goldschmidt (David Empson)
849 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
851 2009-10-21: Simon Goldschmidt
852 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
853 trailing 1 byte len (SYN/FIN)
855 2009-10-21: Simon Goldschmidt
856 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
858 2009-10-19: Simon Goldschmidt
859 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
860 conditional code to assert where applicable), check pbuf length before
861 testing for valid reply
863 2009-10-19: Simon Goldschmidt
864 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
865 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
867 2009-10-16: Simon Goldschmidt
868 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
869 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
872 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
873 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
875 2009-10-15: Simon Goldschmidt
876 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
879 2009-10-15: Simon Goldschmidt
880 * autoip.c: Fixed bug #27704: autoip starts with wrong address
881 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
882 of network byte order
884 2009-10-11 Simon Goldschmidt (Jörg Kesten)
885 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
886 which are not consecutive when retransmitting unacked segments
888 2009-10-09 Simon Goldschmidt
889 * opt.h: Fixed default values of some stats to only be enabled if used
890 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
892 2009-08-30 Simon Goldschmidt
893 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
894 function" by checking for loopback before calling ip_frag
896 2009-08-25 Simon Goldschmidt
897 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
899 2009-08-23 Simon Goldschmidt
900 * ppp.c: bug #27078: Possible memory leak in pppInit()
902 2009-08-23 Simon Goldschmidt
903 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
906 2009-08-23 Simon Goldschmidt
907 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
908 Fixed wrong parenthesis, added check in init.c
910 2009-08-23 Simon Goldschmidt
911 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
913 2009-08-23 Simon Goldschmidt
914 * many ppp files: bug #27267: Added include to string.h where needed
916 2009-08-23 Simon Goldschmidt
917 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
924 2009-05-10 Simon Goldschmidt
925 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
926 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
927 one pbuf to help MACs that don't support scatter-gather DMA.
929 2009-05-09 Simon Goldschmidt
930 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
931 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
933 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
934 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
935 extended info about the currently received packet.
937 2009-04-27 Simon Goldschmidt
938 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
940 2009-04-25 Simon Goldschmidt
941 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
942 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
944 2009-04-21 Simon Goldschmidt
945 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
946 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
947 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
948 as an external function for lookup.
950 2009-04-15 Simon Goldschmidt
951 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
953 2009-03-31 Kieran Mansley
954 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
955 TCP timestamp options, off by default. Rework tcp_enqueue() to
956 take option flags rather than specified option data
958 2009-02-18 Simon Goldschmidt
959 * cc.h: Added printf formatter for size_t: SZT_F
961 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
962 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
965 2009-02-12 Simon Goldschmidt
966 * init.h: Added LWIP_VERSION to get the current version of the stack
968 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
969 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
970 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
973 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
974 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
975 is only used by UDPLITE at present, so conditionalise it.
977 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
978 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
979 "seed" address. This should reduce AUTOIP conflicts if
980 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
982 2008-10-02 Jonathan Larmour and Rishi Khan
983 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
986 2008-06-30 Simon Goldschmidt
987 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
988 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
989 mem_free to run between mem_malloc iterations. Added illegal counter for
992 2008-06-27 Simon Goldschmidt
993 * stats.h/.c, some other files: patch #6483: stats module improvement:
994 Added defines to display each module's statistic individually, added stats
995 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
997 2008-06-17 Simon Goldschmidt
998 * err.h: patch #6459: Made err_t overridable to use a more efficient type
999 (define LWIP_ERR_T in cc.h)
1001 2008-06-17 Simon Goldschmidt
1002 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1005 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1006 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1007 modified version of patch # 6370: Moved loopif code to netif.c so that
1008 loopback traffic is supported on all netifs (all local IPs).
1009 Added option to limit loopback packets for each netifs.
1013 2009-08-12 Kieran Mansley
1014 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1015 out of window or out of order properly
1017 2009-08-12 Kieran Mansley
1018 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1020 2009-07-28 Simon Goldschmidt
1021 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1023 2009-07-27 Kieran Mansley
1024 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1026 2009-07-09 Kieran Mansley
1027 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1028 recv_avail and don't increment counters until message successfully
1031 2009-06-25 Kieran Mansley
1032 * api_msg.c api.h: BUG26722: initialise netconn write variables
1035 2009-06-25 Kieran Mansley
1036 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1038 2009-06-25 Kieran Mansley
1039 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1040 simultaneous close behaviour, and make snd_nxt have the same meaning
1043 2009-05-12 Simon Goldschmidt
1044 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1045 arp_table / uses etharp_query" by adding etharp_gratuitous()
1047 2009-05-12 Simon Goldschmidt
1048 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1049 to the IP header (used by igmp_ip_output_if)
1051 2009-05-06 Simon Goldschmidt
1052 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1053 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1055 2009-05-05 Simon Goldschmidt
1056 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1059 2009-05-04 Simon Goldschmidt
1060 * init.c: snmp was not initialized in lwip_init()
1062 2009-05-04 Frédéric Bernon
1063 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1065 2009-05-03 Simon Goldschmidt
1066 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1067 (and unsent->next == NULL)
1069 2009-05-02 Simon Goldschmidt
1070 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1071 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1073 2009-05-02 Simon Goldschmidt
1074 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1076 2009-05-01 Simon Goldschmidt
1077 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1079 2009-05-01 Simon Goldschmidt
1080 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1082 2009-04-29 Frédéric Bernon
1083 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1084 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1085 of broadcast packets even when this option wasn't set. Port maintainers
1086 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1087 If you want this option also filter broadcast on recv operations, you also
1088 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1090 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1091 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1092 DHCP/AUTOIP cooperation
1094 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1095 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1096 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1097 right place in tcp_output and tcp_rexmit).
1099 2009-04-25 Simon Goldschmidt
1100 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1101 when debugging": memp_sizes contained the wrong sizes (including sanity
1102 regions); memp pools for MEM_USE_POOLS were too small
1104 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1105 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1106 behavior, with with ip address string not ended by a '\0', a space or a
1109 2009-04-19 Simon Goldschmidt
1110 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1111 pcb->err is called, not pcb->connected (with an error code).
1113 2009-04-19 Simon Goldschmidt
1114 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1115 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1117 2009-04-19 Simon Goldschmidt
1118 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1119 in the header pbuf, not the data pbuf)
1121 2009-04-18 Simon Goldschmidt
1122 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1124 2009-04-15 Simon Goldschmidt
1125 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1127 2009-04-15 Simon Goldschmidt
1128 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1130 2009-04-15 Simon Goldschmidt
1131 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1132 ip_hinted_output() (for smaller code mainly)
1134 2009-04-15 Simon Goldschmidt
1135 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1137 2009-04-15 Simon Goldschmidt
1138 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1139 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1140 is big enough in dhcp_start
1142 2009-04-15 Simon Goldschmidt
1143 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1145 2009-04-15 Simon Goldschmidt
1146 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1148 2009-04-15 Simon Goldschmidt
1149 * sockets.c: bug #26121: set_errno can be overridden
1151 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1152 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1155 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1156 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1159 2009-03-31 Kieran Mansley
1160 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1161 updates are calculated and sent (BUG20515)
1163 * tcp_in.c: cope with SYN packets received during established states,
1164 and retransmission of initial SYN.
1166 * tcp_out.c: set push bit correctly when tcp segments are merged
1168 2009-03-27 Kieran Mansley
1169 * tcp_out.c set window correctly on probes (correcting change made
1172 2009-03-26 Kieran Mansley
1173 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1174 connections where no reset required (bug #25622)
1176 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1179 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1180 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1181 too small depending on MEM_ALIGNMENT
1183 2009-02-16 Simon Goldschmidt
1184 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1185 converted size argument of netconn_write to 'size_t'
1187 2009-02-16 Simon Goldschmidt
1188 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1189 by moving accept callback function pointer to TCP_PCB_COMMON
1191 2009-02-12 Simon Goldschmidt
1192 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1195 2009-02-11 Simon Goldschmidt
1196 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1198 2009-02-11 Simon Goldschmidt
1199 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1200 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1202 2009-02-10 Simon Goldschmidt
1203 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1204 Accepts_pending is decrease on a corresponding listen pcb when a connection
1205 in state SYN_RCVD is close.
1207 2009-01-28 Jonathan Larmour
1208 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1211 2008-12-19 Simon Goldschmidt
1212 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1214 2008-12-10 Tamas Somogyi, Frédéric Bernon
1215 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1216 port uses deleted netbuf.
1218 2008-10-18 Simon Goldschmidt
1219 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1222 2008-10-15 Simon Goldschmidt
1223 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1224 by packing the struct ip_reass_helper.
1226 2008-10-03 David Woodhouse, Jonathan Larmour
1227 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1229 2008-10-02 Jonathan Larmour
1230 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1231 padding is included.
1233 2008-09-30 Jonathan Larmour
1234 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1235 assertion check that addrlen isn't NULL.
1237 2008-09-30 Jonathan Larmour
1238 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1240 2008-08-26 Simon Goldschmidt
1241 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1242 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1244 2008-08-14 Simon Goldschmidt
1245 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1246 tcp_close returns != ERR_OK)
1248 2008-07-08 Frédéric Bernon
1249 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1250 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1252 2008-06-24 Jonathan Larmour
1253 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1254 if tcp_seg_copy fails.
1256 2008-06-17 Simon Goldschmidt
1257 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1258 and created defines for swapping bytes and folding u32 to u16.
1260 2008-05-30 Kieran Mansley
1261 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1262 rather than rcv_ann_wnd when deciding if packets are in-window.
1263 Contributed by <arasmussen@consultant.datasys.swri.edu>
1265 2008-05-30 Kieran Mansley
1266 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1267 passing as function pointers when MEM_LIBC_MALLOC is defined.
1269 2008-05-09 Jonathan Larmour
1270 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1271 stop it being treated as a fatal error.
1273 2008-04-15 Simon Goldschmidt
1274 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1277 2008-03-27 Simon Goldschmidt
1278 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1279 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1280 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1281 or heap memory from interrupt context
1283 2008-03-26 Simon Goldschmidt
1284 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1285 host sent a zero mss as TCP option.
1292 2008-03-10 Jonathan Larmour
1293 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1294 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1296 2008-01-22 Frédéric Bernon
1297 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1298 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1300 2008-01-14 Frédéric Bernon
1301 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1302 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1303 tcp_recv callback (see rawapi.txt).
1305 2008-01-14 Frédéric Bernon, Marc Chaland
1306 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1308 2008-01-12 Frédéric Bernon
1309 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1310 netconn::sem per netconn::op_completed like suggested for the task #7490
1311 "Add return value to sys_mbox_post".
1313 2008-01-12 Frédéric Bernon
1314 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1315 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1316 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1318 2008-01-10 Frédéric Bernon
1319 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1320 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1321 "blocking" ("block" parameter = 1).
1323 2008-01-10 Frédéric Bernon
1324 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1325 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1326 "Add return value to sys_mbox_post".
1328 2008-01-05 Frédéric Bernon
1329 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1330 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1331 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1332 indicate the number of pointers query by the mailbox. There is three defines
1333 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1334 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1335 parameter in your implementation, but to ignore it to keep the previous behavior.
1336 The new sys_mbox_trypost function return a value to know if the mailbox is
1337 full or if the message is posted. Take a look to sys_arch.txt for more details.
1338 This new function is used in tcpip_input (so, can be called in an interrupt
1339 context since the function is not blocking), and in recv_udp and recv_raw.
1341 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1342 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1343 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1344 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1345 documentation in the rawapi.txt file.
1347 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1348 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1350 2007-12-31 Frédéric Bernon, Luca Ceresoli
1351 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1352 in autoip". The change in etharp_raw could be removed, since all calls to
1353 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1354 wrong in the future.
1356 2007-12-30 Frédéric Bernon, Tom Evans
1357 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1358 Filtering" reported by Tom Evans.
1360 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1361 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1362 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1363 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1364 keep accepting new connections.
1366 2007-12-13 Frédéric Bernon
1367 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1368 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1370 2007-12-12 Frédéric Bernon
1371 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1372 are the one which have ram usage.
1374 2007-12-05 Frédéric Bernon
1375 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1376 set of variables (=0) or a local one (=1). In this last case, your port should
1377 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1378 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1380 2007-12-03 Simon Goldschmidt
1381 * ip.c: ip_input: check if a packet is for inp first before checking all other
1382 netifs on netif_list (speeds up packet receiving in most cases)
1384 2007-11-30 Simon Goldschmidt
1385 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1386 UDP: move a (connected) pcb selected for input to the front of the list of
1387 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1390 2007-11-28 Simon Goldschmidt
1391 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1393 2007-11-25 Simon Goldschmidt
1394 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1397 2007-11-24 Simon Goldschmidt
1398 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1399 to the new file netdb.c; included lwip_getaddrinfo.
1401 2007-11-21 Simon Goldschmidt
1402 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1403 based on the MTU of the netif used to send. Enabled by default. Disable by
1404 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1406 2007-11-19 Frédéric Bernon
1407 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1408 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1409 copy dns payload to parse the response), return an error if there is no place
1410 for a new query, and fix some minor problems.
1412 2007-11-16 Simon Goldschmidt
1413 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1414 removed files: core/inet.c, core/inet6.c
1415 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1416 inet and chksum part; changed includes in all lwIP files as appropriate
1418 2007-11-16 Simon Goldschmidt
1419 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1420 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1421 (gethostbyname/gethostbyname_r).
1423 2007-11-15 Jim Pettinato, Frédéric Bernon
1424 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1425 requests with RAW api interface. Initialization is done in lwip_init() with
1426 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1427 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1428 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1429 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1430 list with points to improve.
1432 2007-11-06 Simon Goldschmidt
1433 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1434 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1435 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1437 2007-11-06 Simon Goldschmidt
1438 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1439 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1440 implementation from netconn api applications.
1442 2007-11-03 Frédéric Bernon
1443 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1444 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1445 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1446 it. This is a first release which have to be improve for TCP. Note it used the
1447 netconn::recv_avail which need to be more "thread-safe" (note there is already
1448 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1450 2007-11-01 Frédéric Bernon, Marc Chaland
1451 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1452 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1453 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1454 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1455 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1457 2007-10-24 Frédéric Bernon
1458 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1459 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1460 some code (like we have talk in "patch #5919 : Create compile switch to remove
1461 select code"), but it could be done later.
1463 2007-10-08 Simon Goldschmidt
1464 * many files: Changed initialization: many init functions are not needed any
1465 more since we now rely on the compiler initializing global and static
1468 2007-10-06 Simon Goldschmidt
1469 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1470 to enqueue the received pbufs so that multiple packets can be reassembled
1471 simultaneously and no static reassembly buffer is needed.
1473 2007-10-05 Simon Goldschmidt
1474 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1475 all netifs (or ports) can use it.
1477 2007-10-05 Frédéric Bernon
1478 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1479 common function to reduce a little bit the footprint (for all functions using
1480 only the "netif" parameter).
1482 2007-10-03 Frédéric Bernon
1483 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1484 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1485 a little bit the footprint (for all functions using only the "netif" parameter).
1487 2007-09-15 Frédéric Bernon
1488 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1489 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1490 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1491 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1493 2007-09-10 Frédéric Bernon
1494 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1495 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1496 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1497 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1498 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1499 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1500 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1501 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1502 when it's queried (any direct call to "sysuptime" is changed by a call to
1503 snmp_get_sysuptime).
1505 2007-09-09 Frédéric Bernon, Bill Florac
1506 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1507 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1508 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1509 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1510 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1511 the next query message to receive the matching multicast streams).
1513 2007-09-08 Frédéric Bernon
1514 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1515 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1516 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1517 Enable to access to these fields with LWIP_TCP=0.
1519 2007-09-05 Frédéric Bernon
1520 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1521 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1522 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1523 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1524 help to reduce footprint, and to reduce "visibility" on the Internet.
1526 2007-09-05 Frédéric Bernon, Bill Florac
1527 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1528 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1529 parameters have to be provided: a task name, and a task stack size. For this
1530 one, since it's platform dependant, you could define the best one for you in
1531 your lwipopts.h. For port maintainers, you can just add these new parameters
1532 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1535 2007-09-05 Frédéric Bernon
1536 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1537 inside init.c for task #7142 "Sanity check user-configurable values".
1539 2007-09-04 Frédéric Bernon, Bill Florac
1540 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1541 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1542 value). It will avoid potential fragmentation problems, use a counter to know
1543 how many times a group is used on an netif, and free it when all applications
1544 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1545 check if LWIP_IGMP!=0).
1547 2007-09-03 Frédéric Bernon
1548 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1549 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1550 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1551 and/or the "interface" field (for netconn layer), for join/leave operations.
1552 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1553 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1555 2007-08-30 Frédéric Bernon
1556 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1557 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1558 with other API (application based on raw API, or future "socket2" API). Ports
1559 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1561 2007-08-30 Frédéric Bernon, Jonathan Larmour
1562 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1563 user-configurable values".
1565 2007-08-29 Frédéric Bernon
1566 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1567 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1568 spirit than the others modules. Modify some IGMP debug traces.
1570 2007-08-29 Frédéric Bernon
1571 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1572 Add lwip_init function to regroup all modules initializations, and to provide
1573 a place to add code for task #7142 "Sanity check user-configurable values".
1574 Ports maintainers should remove direct initializations calls from their code,
1575 and add init.c in their makefiles. Note that lwip_init() function is called
1576 inside tcpip_init, but can also be used by raw api users since all calls are
1577 disabled when matching options are disabled. Also note that their is new options
1578 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1580 2007-08-26 Marc Boucher
1581 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1582 since they can under certain circumstances be called with an invalid conn
1583 pointer after the connection has been closed (and conn has been freed).
1585 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1586 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1587 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1589 2007-08-22 Frédéric Bernon
1590 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1591 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1593 2007-08-22 Frédéric Bernon
1594 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1595 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1596 name is tcpip_input (we keep the name of 1.2.0 function).
1598 2007-08-17 Jared Grubb
1599 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1600 settings into new memp_std.h and optional user file lwippools.h. This adds
1601 more dynamic mempools, and allows the user to create an arbitrary number of
1602 mempools for mem_malloc.
1604 2007-08-16 Marc Boucher
1605 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1606 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1607 close the connection.
1609 2007-08-16 Marc Boucher
1610 * sockets.c: lwip_accept(): check netconn_peer() error return.
1612 2007-08-16 Marc Boucher
1613 * mem.c, mem.h: Added mem_calloc().
1615 2007-08-16 Marc Boucher
1616 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1617 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1618 and starving other message types.
1619 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1621 2007-08-16 Marc Boucher
1622 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1623 type and flgs (later renamed to flags).
1624 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1625 Improved lwip_recvfrom(). TCP push now propagated.
1627 2007-08-16 Marc Boucher
1628 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1631 2007-08-16 Marc Boucher
1632 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1633 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1634 Added PPPoE support and various PPP improvements.
1636 2007-07-25 Simon Goldschmidt
1637 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1638 making netbuf_copy_partial use this function.
1640 2007-07-25 Simon Goldschmidt
1641 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1642 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1645 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1646 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1647 a link callback in the netif struct, and functions to handle it. Be carefull
1648 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1649 if you want to be sure to be compatible with future changes...
1651 2007-06-30 Frédéric Bernon
1652 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1654 2007-06-21 Simon Goldschmidt
1655 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1656 LWIP_AUTOIP =0 and =1 to remove redundant code.
1658 2007-06-21 Simon Goldschmidt
1659 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1660 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1661 heap. This both prevents memory fragmentation and gives a higher speed
1662 at the cost of more memory consumption. Turned off by default.
1664 2007-06-21 Simon Goldschmidt
1665 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1666 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1667 int to be able to send a bigger buffer than 64K with one time (mainly
1668 used from lwip_send).
1670 2007-06-21 Simon Goldschmidt
1671 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1672 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1674 2007-06-21 Simon Goldschmidt
1675 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1676 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1677 changes on low memory or empty send-buffer.
1679 2007-06-18 Simon Goldschmidt
1680 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1681 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1682 used for ethernet and struct eth_addr already had a defined length of 6).
1684 2007-06-17 Simon Goldschmidt
1685 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1686 to disable UDP checksum generation on transmit.
1688 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1689 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1690 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1691 this macro to check "conn" parameter in api_msg.c functions.
1693 2007-06-11 Simon Goldschmidt
1694 * sockets.c, sockets.h: Added UDP lite support for sockets
1696 2007-06-10 Simon Goldschmidt
1697 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1698 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1701 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1702 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1703 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1704 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1705 (see TODO mark in the source code).
1707 2007-06-09 Simon Goldschmidt
1708 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1709 etharp_output() to match netif->output so etharp_output() can be used
1710 directly as netif->output to save one function call.
1712 2007-06-08 Simon Goldschmidt
1713 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1714 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1715 added initialization of those to ethernetif, slipif and loopif.
1717 2007-05-18 Simon Goldschmidt
1718 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1719 (defaulting to off for now) that can be set to 0 to send fragmented
1720 packets by passing PBUF_REFs down the stack.
1722 2007-05-23 Frédéric Bernon
1723 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1724 connections, such present in patch #5959.
1726 2007-05-23 Frédéric Bernon
1727 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1728 code in only one part...
1730 2007-05-18 Simon Goldschmidt
1731 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1732 elements to overflow. This is achieved by adding some bytes before and after
1733 each pool element (increasing their size, of course), filling them with a
1734 prominent value and checking them on freeing the element.
1735 Set it to 2 to also check every element in every pool each time memp_malloc()
1736 or memp_free() is called (slower but more helpful).
1738 2007-05-10 Simon Goldschmidt
1739 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1740 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1743 2007-05-11 Frédéric Bernon
1744 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1745 Include a function pointer instead of a table index in the message to reduce
1746 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1747 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1749 2007-05-10 Simon Goldschmidt
1750 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1751 \ extern "C" {' in all header files. Now you can write your application using
1752 the lwIP stack in C++ and simply #include the core files. Note I have left
1753 out the netif/ppp/*h header files for now, since I don't know which files are
1754 included by applications and which are for internal use only.
1756 2007-05-09 Simon Goldschmidt
1757 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1758 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1759 situations where some compilers might inline the copy and save a function
1760 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1762 2007-05-08 Simon Goldschmidt
1763 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1764 to be overriden in case the C-library malloc implementation is not protected
1765 against concurrent access.
1767 2007-05-04 Simon Goldschmidt (Atte Kojo)
1768 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1769 multiple packets to the same host.
1771 2007-05-04 Frédéric Bernon, Jonathan Larmour
1772 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1773 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1774 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1775 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1776 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1777 these fields are now renamed "addr" & "port".
1779 2007-04-11 Jonathan Larmour
1780 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1781 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1782 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1783 by the port in sys_arch.h if desired.
1785 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1786 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1787 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1788 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1790 2007-04-05 Frédéric Bernon
1791 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1793 2007-04-04 Simon Goldschmidt
1794 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1795 use this for and architecture-independent form to tell the compiler you intentionally
1796 are not using this variable. Can be overriden in cc.h.
1798 2007-03-28 Frédéric Bernon
1799 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1800 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1801 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1802 It will be used by DHCP to register a client hostname, but can also be use when you call
1805 2007-03-28 Frédéric Bernon
1806 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1807 initialize a network interface's flag with. It tell this interface is an ethernet
1808 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1809 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1811 2007-03-26 Frédéric Bernon, Jonathan Larmour
1812 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1813 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1814 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1815 is done in tcpip_init function.
1817 2007-03-22 Frédéric Bernon
1818 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1819 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1820 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1821 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1822 but never used. Fix msg_in.c with the correct #if test for a stat display.
1824 2007-03-21 Kieran Mansley
1825 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1826 Provides callback on netif up/down state change.
1828 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1829 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1830 ip.c, netif.h, tcpip.c, opt.h:
1831 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1832 filter per all network interfaces. Declare a new function in netif to enable to
1833 control the MAC filter (to reduce lwIP traffic processing).
1835 2007-03-11 Frédéric Bernon
1836 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1837 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1838 unless you know what you're doing (default are RFC1122 compliant). Note
1839 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1841 2007-03-08 Frédéric Bernon
1842 * tcp.h: Keepalive values can be configured at compile time, but don't change
1843 this unless you know what you're doing (default are RFC1122 compliant).
1845 2007-03-08 Frédéric Bernon
1846 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1847 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1848 on UDP sockets/netconn.
1850 2007-03-08 Simon Goldschmidt
1851 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1853 2007-03-06 Frédéric Bernon
1854 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1855 Implement SO_RCVTIMEO on UDP sockets/netconn.
1857 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1858 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1859 on the stack and remove the API msg type from memp
1861 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1862 * sockets.h, sockets.c: Move socket initialization to new
1863 lwip_socket_init() function.
1864 NOTE: this changes the API with ports. Ports will have to be
1865 updated to call lwip_socket_init() now.
1867 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1868 * api_lib.c: Use memcpy in netbuf_copy_partial.
1873 2008-03-17 Frédéric Bernon, Ed Kerekes
1874 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1875 some problems to fill the IP header on some targets, use now the
1876 ip.h macros to do it).
1878 2008-03-13 Frédéric Bernon
1879 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1880 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1881 TCP connection caused a crash. Note that using (lwip_)recvfrom
1882 like this is a bit slow and that using (lwip)getpeername is the
1883 good lwip way to do it (so, using recv is faster on tcp sockets).
1885 2008-03-12 Frédéric Bernon, Jonathan Larmour
1886 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1887 recv_raw() does not consume data", and the ping sample (with
1888 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1889 returned the IP payload, without the IP header).
1891 2008-03-04 Jonathan Larmour
1892 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1893 and/or warnings on some systems where mem_size_t and size_t differ.
1894 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1896 2008-03-04 Kieran Mansley (contributions by others)
1897 * Numerous small compiler error/warning fixes from contributions to
1898 mailing list after 1.3.0 release candidate made.
1900 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1901 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1903 2008-01-15 Kieran Mansley
1904 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1905 prevented from sending by a small send window, not just a zero
1908 2008-01-09 Jonathan Larmour
1909 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1910 conflict with Linux system headers.
1912 2008-01-06 Jonathan Larmour
1913 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1914 address entirely on receiving a DHCPNAK, and restarting discovery.
1916 2007-12-21 Simon Goldschmidt
1917 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1918 is not protected" by using new macros for interlocked access to modify/test
1919 netconn->recv_avail.
1921 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1922 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1924 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1925 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1926 of silly window avoidance and prevent lwIP from shrinking the window)
1928 2007-12-04 Simon Goldschmidt
1929 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1930 data packet was lost): add assert that all segment lists are empty in
1931 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1932 state from LAST_ACK in tcp_process
1934 2007-12-02 Simon Goldschmidt
1935 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1936 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1937 has to be set to 0 in lwipopts.h
1939 2007-12-02 Simon Goldschmidt
1940 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1941 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1942 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1943 This is a fix for thread-safety and allocates all items needed for a netconn
1944 when the netconn is created.
1946 2007-11-30 Simon Goldschmidt
1947 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1948 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1949 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1950 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1952 2007-11-27 Simon Goldschmidt
1953 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1954 letting ip_route only use netifs that are up.
1956 2007-11-27 Simon Goldschmidt
1957 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1958 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1959 sockets block most operations once they have seen a fatal error.
1961 2007-11-27 Simon Goldschmidt
1962 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1963 netif to send as an argument (to be able to send on netifs that are down).
1965 2007-11-26 Simon Goldschmidt
1966 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1969 2007-11-21 Simon Goldschmidt
1970 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1971 Fixed the nagle algorithm; nagle now also works for all raw API applications
1972 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1974 2007-11-12 Frédéric Bernon
1975 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1976 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1977 context in do_getaddr.
1979 2007-11-10 Simon Goldschmidt
1980 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1981 happen any time). Now the packet simply isn't enqueued when out of memory.
1983 2007-11-01 Simon Goldschmidt
1984 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1985 TCP_MSS if that is smaller) as long as no MSS option is received from the
1988 2007-11-01 Simon Goldschmidt
1989 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1990 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1991 sending our configured TCP_MSS instead of the one received).
1993 2007-11-01 Simon Goldschmidt
1994 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1995 calculated based on the configured TCP_MSS, not on the MSS option received
1998 2007-10-09 Simon Goldschmidt
1999 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2000 short and also was generated wrong if checksum coverage != tot_len;
2001 receive: checksum was calculated wrong if checksum coverage != tot_len
2003 2007-10-08 Simon Goldschmidt
2004 * mem.c: lfree was not updated in mem_realloc!
2006 2007-10-07 Frédéric Bernon
2007 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2008 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2009 this change cause an API breakage for netconn_addr, since a parameter
2010 type change. Any compiler should cause an error without any changes in
2011 yours netconn_peer calls (so, it can't be a "silent change"). It also
2012 reduce a little bit the footprint for socket layer (lwip_getpeername &
2013 lwip_getsockname use now a common lwip_getaddrname function since
2014 netconn_peer & netconn_addr have the same parameters).
2016 2007-09-20 Simon Goldschmidt
2017 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2018 by checking tcp_tw_pcbs also
2020 2007-09-19 Simon Goldschmidt
2021 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2023 2007-09-15 Mike Kleshov
2024 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2026 2007-09-06 Frédéric Bernon
2027 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2028 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2029 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2030 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2032 2007-08-30 Frédéric Bernon
2033 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2034 and fix some coding style.
2036 2007-08-28 Frédéric Bernon
2037 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2038 kind of packets. These packets are considered like Ethernet packets (payload
2039 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2040 are considered like IP packets (payload pointing to iphdr).
2042 2007-08-27 Frédéric Bernon
2043 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2044 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2045 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2047 2007-08-24 Kieran Mansley
2048 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2049 compiler (Paradigm C++)
2051 2007-08-09 Frédéric Bernon, Bill Florac
2052 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2053 Introduce IGMP_STATS to centralize statistics management.
2055 2007-08-09 Frédéric Bernon, Bill Florac
2056 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2057 packet on a udp pcb binded on an netif's IP address, and not on "any".
2059 2007-08-09 Frédéric Bernon, Bill Florac
2060 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2061 This is mainly on using lookup/lookfor, and some coding styles...
2063 2007-07-26 Frédéric Bernon (and "thedoctor")
2064 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2066 2007-07-25 Simon Goldschmidt
2067 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2068 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2069 (tcp_output is called again later from tcp timers).
2071 2007-07-25 Simon Goldschmidt
2072 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2073 copy_from_pbuf, which illegally modified the given pbuf.
2075 2007-07-25 Simon Goldschmidt
2076 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2077 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2079 2007-07-24 Simon Goldschmidt
2080 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2081 correct state (must be CLOSED).
2083 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2084 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2085 allocation. It now returns NULL.
2087 2007-07-13 Frédéric Bernon
2088 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2091 2007-07-13 Frédéric Bernon
2092 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2093 because current code doesn't follow rawapi.txt documentation.
2095 2007-07-13 Kieran Mansley
2096 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2097 out of sequence processing of received packets
2099 2007-07-03 Simon Goldschmidt
2100 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2101 assumption is made that this pbuf is in one piece (i.e. not chained). These
2102 assumptions clash with the possibility of converting to fully pool-based
2103 pbuf implementations, where PBUF_RAM pbufs might be chained.
2105 2007-07-03 Simon Goldschmidt
2106 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2107 when closing tcp netconns: removed conn->sem, less context switches when
2108 closing, both netconn_close and netconn_delete should safely close tcp
2111 2007-07-02 Simon Goldschmidt
2112 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2113 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2114 to cache ARP table indices with each pcb instead of single-entry cache for
2117 2007-07-02 Simon Goldschmidt
2118 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2119 warnings when assigning to smaller types.
2121 2007-06-28 Simon Goldschmidt
2122 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2124 2007-06-28 Simon Goldschmidt
2125 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2126 a segment contained chained pbufs)
2128 2007-06-28 Frédéric Bernon
2129 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2130 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2131 possible to define this macro in your own lwipopts.h to always use C library's
2132 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2134 2007-06-28 Frédéric Bernon
2135 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2136 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2137 in api_lib/api_msg (use pointers and not type with table, etc...)
2139 2007-06-26 Simon Goldschmidt
2140 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2142 2007-06-25 Simon Goldschmidt
2143 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2144 for udp packets with no matching pcb.
2146 2007-06-25 Simon Goldschmidt
2147 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2148 could get udp input packets if the remote side matched.
2150 2007-06-13 Simon Goldschmidt
2151 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2152 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2154 2007-06-13 Simon Goldschmidt
2155 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2156 -> netconn_new_..() does not allocate a new connection for unsupported
2159 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2160 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2161 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2163 2007-06-13 Frédéric Bernon, Matthias Weisser
2164 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2165 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2166 some macro names collision with some OS macros.
2168 2007-06-11 Simon Goldschmidt
2169 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2170 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2171 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2174 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2175 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2176 where TCP flags wasn't initialized in tcp_keepalive.
2178 2007-06-03 Simon Goldschmidt
2179 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2180 registered, p->payload was modified without modifying p->len if sending
2181 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2183 2007-06-03 Simon Goldschmidt
2184 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2185 re-used the input pbuf even if that didn't have enough space to include the
2186 link headers. Now the space is tested and a new pbuf is allocated for the
2187 echo response packet if the echo request pbuf isn't big enough.
2189 2007-06-01 Simon Goldschmidt
2190 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2192 2007-05-23 Frédéric Bernon
2193 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2194 allocated by do_listen if success) and netconn_accept errors handling. In
2195 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2196 by ASSERT, except for netconn_delete.
2198 2007-05-23 Frédéric Bernon
2199 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2200 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2201 directly close the recvmbox).
2203 2007-05-22 Simon Goldschmidt
2204 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2205 bound but unconnected (and non-listening) tcp_pcbs.
2207 2007-05-22 Frédéric Bernon
2208 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2209 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2210 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2211 like "sys_timeout" in their application threads.
2213 2007-05-22 Frédéric Bernon
2214 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2215 which parameters are used by which do_xxx function, and to avoid "misusing"
2216 parameters (patch #5938).
2218 2007-05-22 Simon Goldschmidt
2219 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2220 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2221 is only 8 bits wide. This affects the api, as there, the protocol was
2224 2007-05-18 Simon Goldschmidt
2225 * memp.c: addition to patch #5913: smaller pointer was returned but
2226 memp_memory was the same size -> did not save memory.
2228 2007-05-16 Simon Goldschmidt
2229 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2232 2007-05-16 Simon Goldschmidt
2233 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2234 as the one of the netif used for sending to prevent sending from old
2235 addresses after a netif address gets changed (partly fixes bug #3168).
2237 2007-05-16 Frédéric Bernon
2238 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2239 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2240 tcpip_init) because we have to be sure that network interfaces are already
2241 added (mac filter is updated only in igmp_init for the moment).
2243 2007-05-16 Simon Goldschmidt
2244 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2245 into sys_arch_sem_wait calls to prevent timers from running while waiting
2246 for the heap. This fixes bug #19167.
2248 2007-05-13 Simon Goldschmidt
2249 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2250 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2253 2007-05-07 Simon Goldschmidt
2254 * mem.c: Another attempt to fix bug #17922.
2256 2007-05-04 Simon Goldschmidt
2257 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2258 implementation so that it can be reused (don't allocate the target
2259 pbuf inside pbuf_copy()).
2261 2007-05-04 Simon Goldschmidt
2262 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2263 to save a little RAM (next pointer of memp is not used while not in pool).
2266 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2269 2007-04-23 Simon Goldschmidt
2270 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2271 in NULL reference for incoming TCP packets". Loopif has to be configured
2272 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2273 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2274 putting packets on a list that is fed to the stack by calling loopif_poll()
2275 (single-thread / NO_SYS / polling environment where e.g.
2276 netif->input() = ip_input).
2278 2007-04-17 Jonathan Larmour
2279 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2280 the difference between two u16_t's.
2281 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2282 MEMP_NUM_NETCONN in sockets.c right now.
2284 2007-04-12 Jonathan Larmour
2285 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2287 2007-04-12 Kieran Mansley
2288 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2289 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2291 2007-04-11 Simon Goldschmidt
2292 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2293 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2294 pbuf.c: removed functions no needed any more (by etharp).
2296 2007-04-11 Kieran Mansley
2297 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2298 "Constant is long" warnings with 16bit compilers. Contributed by
2299 avatar@mmlab.cse.yzu.edu.tw
2301 2007-04-05 Frédéric Bernon, Jonathan Larmour
2302 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2303 the mailbox is active". Now, the post is only done during a connect, and do_send,
2304 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2306 2007-04-03 Frédéric Bernon
2307 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2308 packets. See patch #5834.
2310 2007-03-30 Frédéric Bernon
2311 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2312 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2314 2007-03-30 Frédéric Bernon
2315 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2316 others environment defines (these were too "generic").
2318 2007-03-28 Frédéric Bernon
2319 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2320 result and can cause a crash. lwip_send now check netbuf_ref result.
2322 2007-03-28 Simon Goldschmidt
2323 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2324 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2325 defined. This is the way it should have been already (looking at
2328 2007-03-28 Kieran Mansley
2329 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2330 IP and TCP headers *and* physical link headers
2332 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2333 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2334 to send some garbage. It is not a definitive solution, but the patch does solve
2335 the problem for most cases.
2337 2007-03-22 Frédéric Bernon
2338 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2340 2007-03-22 Frédéric Bernon
2341 * api_lib.c: somes resources couldn't be freed if there was errors during
2342 netconn_new_with_proto_and_callback.
2344 2007-03-22 Frédéric Bernon
2345 * ethernetif.c: update netif->input calls to check return value. In older ports,
2346 it's a good idea to upgrade them, even if before, there could be another problem
2347 (access to an uninitialized mailbox).
2349 2007-03-21 Simon Goldschmidt
2350 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2351 by casting to unsigned).
2353 2007-03-21 Frédéric Bernon
2354 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2355 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2356 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2357 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2358 faster and more reliable communication between api_lib and tcpip.
2360 2007-03-21 Frédéric Bernon
2361 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2363 2007-03-21 Frédéric Bernon
2364 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2366 2007-03-21 Kieran Mansley
2367 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2370 2007-03-21 Kieran Mansley
2371 * Fix all uses of pbuf_header to check the return value. In some
2372 cases just assert if it fails as I'm not sure how to fix them, but
2373 this is no worse than before when they would carry on regardless
2376 2007-03-21 Kieran Mansley
2377 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2378 comment out missing header include in icmp.c
2380 2007-03-20 Frédéric Bernon
2381 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2382 synchronized with memp.h.
2384 2007-03-20 Frédéric Bernon
2385 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2386 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2387 network interfaces. Also fix a compiler warning.
2389 2007-03-20 Kieran Mansley
2390 * udp.c: Only try and use pbuf_header() to make space for headers if
2391 not a ROM or REF pbuf.
2393 2007-03-19 Frédéric Bernon
2394 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2397 2007-03-19 Frédéric Bernon
2398 * Remove unimplemented "memp_realloc" function from memp.h.
2400 2007-03-11 Simon Goldschmidt
2401 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2404 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2405 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2406 (missing `const' qualifier in socket functions), to get more compatible to
2407 standard POSIX sockets.
2409 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2410 * sockets.c: Add asserts inside bind, connect and sendto to check input
2411 parameters. Remove excessive set_errno() calls after get_socket(), because
2412 errno is set inside of get_socket(). Move last sock_set_errno() inside
2415 2007-03-09 Simon Goldschmidt
2416 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2417 was allocated too small.
2419 2007-03-06 Simon Goldschmidt
2420 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2421 the stack from concurrent access.
2423 2007-03-06 Frédéric Bernon, Dmitry Potapov
2424 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2425 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2427 2007-03-06 Simon Goldschmidt
2428 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2429 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2431 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2432 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2433 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2434 Allow to do ARP processing for incoming packets inside tcpip_thread
2435 (protecting ARP layer against concurrent access). You can also disable
2436 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2437 Older ports have to use tcpip_ethinput.
2439 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2440 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2441 from pointer target type"
2443 2007-03-05 Frédéric Bernon
2444 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2445 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2447 2007-03-04 Frédéric Bernon
2448 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2451 2007-03-04 Frédéric Bernon
2452 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2454 The api_msg struct stay on the stack (not moved to netconn struct).
2456 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2457 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2458 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2459 Also fixed cast warning in pbuf_alloc()
2461 2007-03-04 Simon Goldschmidt
2462 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2463 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2465 2007-03-03 Frédéric Bernon
2466 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2467 It is static, and never used in udp.c except udp_init().
2469 2007-03-02 Simon Goldschmidt
2470 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2471 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2472 initialized before tcpip_thread is running (e.g. before OS is started)
2474 2007-03-02 Frédéric Bernon
2475 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2478 2007-02-28 Kieran Mansley
2479 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2480 outside the region of the pbuf by pbuf_header()
2482 2007-02-28 Kieran Mansley
2483 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2484 when supplied timeout is also non-zero
2488 2006-12-05 Leon Woestenberg
2489 * CHANGELOG: Mention STABLE-1.2.0 release.
2493 2006-12-01 Christiaan Simons
2494 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2495 Note this is a workaround. Currently I have no other options left.
2497 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2498 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2499 to include/lwip/opt.h.
2500 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2501 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2502 * opt.h: Add above new options.
2504 2006-08-18 Christiaan Simons
2505 * tcp_{in,out}.c: added SNMP counters.
2506 * ipv4/ip.c: added SNMP counters.
2507 * ipv4/ip_frag.c: added SNMP counters.
2509 2006-08-08 Christiaan Simons
2510 * etharp.{c,h}: added etharp_find_addr() to read
2511 (stable) ethernet/IP address pair from ARP table
2513 2006-07-14 Christiaan Simons
2514 * mib_structs.c: added
2515 * include/lwip/snmp_structs.h: added
2516 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2518 2006-07-06 Christiaan Simons
2519 * snmp/asn1_{enc,dec}.c added
2521 * snmp/msg_{in,out}.c added
2522 * include/lwip/snmp_asn1.h added
2523 * include/lwip/snmp_msg.h added
2524 * doc/snmp_agent.txt added
2526 2006-03-29 Christiaan Simons
2527 * inet.c, inet.h: Added platform byteswap support.
2528 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2529 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2533 2006-11-30 Christiaan Simons
2534 * dhcp.c: Fixed false triggers of request_timeout.
2536 2006-11-28 Christiaan Simons
2537 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2539 2006-10-11 Christiaan Simons
2540 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2541 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2542 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2543 identifier from 170 to 136 (bug #17574).
2545 2006-10-10 Christiaan Simons
2546 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2548 2006-08-17 Christiaan Simons
2549 * udp.c: Fixed bug #17200, added check for broadcast
2550 destinations for PCBs bound to a unicast address.
2552 2006-08-07 Christiaan Simons
2553 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2555 2006-06-27 Christiaan Simons
2556 * api_msg.c: Applied patch for cold case (bug #11135).
2557 In accept_function() ensure newconn->callback is always initialized.
2559 2006-06-15 Christiaan Simons
2560 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2561 facilitate printing of mem_size_t and u16_t statistics.
2563 2006-06-14 Christiaan Simons
2564 * api_msg.c: Applied patch #5146 to handle allocation failures
2565 in accept() by Kevin Lawson.
2567 2006-05-26 Christiaan Simons
2568 * api_lib.c: Removed conn->sem creation and destruction
2569 from netconn_write() and added sys_sem_new to netconn_new_*.
2573 2006-03-03 Christiaan Simons
2574 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2575 access and added pbuf_alloc() return value checks.
2577 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2578 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2579 now handled by the checksum routine properly.
2581 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2582 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2583 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2585 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2586 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2587 submitted by Mitrani Hiroshi.
2589 2005-12-15 Christiaan Simons
2590 * inet.c: Disabled the added summing routine to preserve code space.
2592 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2593 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2594 Added Curt McDowell's optimized checksumming routine for future
2595 inclusion. Need to create test case for unaliged, aligned, odd,
2596 even length combination of cases on various endianess machines.
2598 2005-12-09 Christiaan Simons
2599 * inet.c: Rewrote standard checksum routine in proper portable C.
2601 2005-11-25 Christiaan Simons
2602 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2603 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2604 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2606 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2607 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2608 routine by Peter Jolasson.
2609 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2611 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2612 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2613 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2615 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2616 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2618 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2619 * udp.c: UDP pcb->recv() was called even when it was NULL.
2623 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2624 * etharp.*: Disabled multiple packets on the ARP queue.
2625 This clashes with TCP queueing.
2627 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2628 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2629 Halved the ARP period, doubled the period counts.
2630 ETHARP_MAX_PENDING now should be at least 2. This prevents
2631 the counter from reaching 0 right away (which would allow
2632 too little time for ARP responses to be received).
2634 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * dhcp.c: Decline messages were not multicast but unicast.
2636 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2637 Do not try hard to insert arbitrary packet's source address,
2638 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2639 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2640 querying an address will see it appear in the cache (DHCP could
2641 suffer from this when a server invalidly gave an in-use address.)
2642 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2643 comparing network addresses (identifiers), not the network masks
2645 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2646 IP address actually belongs to the network of the given interface.
2648 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2649 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2653 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2654 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2655 even if one is already pending, if the rcv_wnd is above a threshold
2656 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2657 delayed ACK in order to open the window if the stack is only receiving data.
2659 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2660 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2662 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2663 * etharp.c: Make sure the first pbuf queued on an ARP entry
2664 is properly ref counted.
2666 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2667 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2668 warnings about comparison.
2669 * pbuf.c: Stopped compiler complaining of empty if statement
2670 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2671 * tcp.c: Stopped compiler complaining of empty if statement
2672 when LWIP_DEBUGF() empty.
2673 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2674 * inet.c: Added a couple of casts to quiet the compiler.
2675 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2677 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2678 * inet.c: Made data types consistent in inet_ntoa().
2679 Added casts for return values of checksum routines, to pacify compiler.
2680 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2681 Small corrections to some debugging statements, to pacify compiler.
2683 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2684 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2685 * ethernetif.c Updated low_level_output() to match prototype for
2686 netif->linkoutput and changed low_level_input() similarly for consistency.
2687 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2688 of raw_recv() in raw.h and so avoid compiler error.
2689 * sockets.c: Added trivial (int) cast to keep compiler happier.
2690 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2696 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2698 your cc.h file defines this either 1 or 0. If non-defined,
2700 * .c: Added <string.h> and <errno.h> includes where used.
2701 * etharp.c: Made some array indices unsigned.
2703 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2704 * netif.*: Added netif_set_up()/down().
2705 * dhcp.c: Changes to restart program flow.
2707 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2708 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2709 single-pass lookup for different candidates. Should exploit locality.
2711 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2712 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2713 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2714 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2715 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2719 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2720 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2721 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2722 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2723 is to prefix the 14-bit Ethernet headers with two padding bytes.
2725 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2726 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2727 * etharp.c: Fixed the case where the packet that initiates the ARP request
2728 is not queued, and gets lost. Fixed the case where the packets destination
2729 address is already known; we now always queue the packet and perform an ARP
2736 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2737 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2738 * Fixed two possible NULL references in rare cases.
2744 * Fixed DHCP which did not include the IP address in DECLINE messages.
2748 * etharp.c has been hauled over a bit.
2754 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2755 * Packets sent from ARP queue had invalid source hardware address.
2759 * Pass-by ARP requests do now update the cache.
2763 * No longer dependent on ctype.h.
2764 * New socket options.
2765 * Raw IP pcb support.
2771 * Some debug formatters and casts fixed.
2772 * Numereous fixes in PPP.
2776 * DEBUGF now is LWIP_DEBUGF
2777 * pbuf_dechain() has been re-enabled.
2778 * Mentioned the changed use of CVS branches in README.
2784 * Fixed pool pbuf memory leak in pbuf_alloc().
2785 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2786 Reported by Savin Zlobec.
2788 * PBUF_POOL chains had their tot_len field not set for non-first
2789 pbufs. Fixed in pbuf_alloc().
2793 * Added PPP stack contributed by Marc Boucher
2797 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2799 * ARP queueuing now queues the latest packet instead of the first.
2800 This is the RFC recommended behaviour, but can be overridden in
2807 * TCP has been fixed to deal with the new use of the pbuf->ref
2810 * DHCP dhcp_inform() crash bug fixed.
2814 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2815 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2816 Implemented by David Haas.
2822 * The packet buffer implementation has been enhanced to support
2823 zero-copy and copy-on-demand for packet buffers which have their
2824 payloads in application-managed memory.
2825 Implemented by David Haas.
2827 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2828 if an outgoing packet can be directly sent on the link, or perform
2829 a copy-on-demand when necessary.
2831 The application can safely assume the packet is sent, and the RAM
2832 is available to the application directly after calling udp_send()
2833 or similar function.
2837 * ARP_QUEUEING should now correctly work for all cases, including
2839 Implemented by Leon Woestenberg.
2843 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2844 to a '0.0.0.0' IP address.
2846 * The packet buffer implementation is changed. The pbuf->ref counter
2847 meaning has changed, and several pbuf functions have been
2848 adapted accordingly.
2850 * netif drivers have to be changed to set the hardware address length field
2851 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2852 See the contrib/ports/c16x cs8900 driver as a driver example.
2854 * netif's have a dhcp field that must be initialized to NULL by the driver.
2855 See the contrib/ports/c16x cs8900 driver as a driver example.
2857 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2858 logged in CVS but have not been explained here.
2860 (0.5.3) Changes since version 0.5.2
2864 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2865 threads because it wasn't protected by semaphores.
2869 * struct ip_addr now packed.
2871 * The name of the time variable in arp.c has been changed to ctime
2872 to avoid conflicts with the time() function.
2874 (0.5.2) Changes since version 0.5.1
2878 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2882 * A bug in tcp_parseopt() could cause the stack to hang because of a
2883 malformed TCP option.
2885 * The address of new connections in the accept() function in the BSD
2886 socket library was not handled correctly.
2888 * pbuf_dechain() did not update the ->tot_len field of the tail.
2890 * Aborted TCP connections were not handled correctly in all
2895 * All protocol header structs are now packed.
2897 * The ->len field in the tcp_seg structure now counts the actual
2898 amount of data, and does not add one for SYN and FIN segments.
2900 (0.5.1) Changes since version 0.5.0
2904 * Possible to run as a user process under Linux.
2906 * Preliminary support for cross platform packed structs.
2908 * ARP timer now implemented.
2912 * TCP output queue length was badly initialized when opening
2915 * TCP delayed ACKs were not sent correctly.
2917 * Explicit initialization of BSS segment variables.
2919 * read() in BSD socket library could drop data.
2921 * Problems with memory alignment.
2923 * Situations when all TCP buffers were used could lead to
2926 * TCP MSS option wasn't parsed correctly.
2928 * Problems with UDP checksum calculation.
2930 * IP multicast address tests had endianess problems.
2932 * ARP requests had wrong destination hardware address.
2936 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2938 * A ->linkoutput() member was added to struct netif.
2940 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2942 * ntoh* macros are now null definitions for big endian CPUs.
2944 (0.5.0) Changes since version 0.4.2
2948 * Redesigned operating system emulation layer to make porting easier.
2950 * Better control over TCP output buffers.
2952 * Documenation added.
2956 * Locking issues in buffer management.
2958 * Bugfixes in the sequential API.
2960 * IP forwarding could cause memory leakage. This has been fixed.
2964 * Directory structure somewhat changed; the core/ tree has been
2967 (0.4.2) Changes since version 0.4.1
2971 * Experimental ARP implementation added.
2973 * Skeleton Ethernet driver added.
2975 * Experimental BSD socket API library added.
2979 * In very intense situations, memory leakage could occur. This has
2984 * Variables named "data" and "code" have been renamed in order to
2985 avoid name conflicts in certain compilers.
2987 * Variable++ have in appliciable cases been translated to ++variable
2988 since some compilers generate better code in the latter case.
2990 (0.4.1) Changes since version 0.4
2994 * TCP: Connection attempts time out earlier than data
2995 transmissions. Nagle algorithm implemented. Push flag set on the
2996 last segment in a burst.
2998 * UDP: experimental support for UDP-Lite extensions.
3002 * TCP: out of order segments were in some cases handled incorrectly,
3003 and this has now been fixed. Delayed acknowledgements was broken
3004 in 0.4, has now been fixed. Binding to an address that is in use
3005 now results in an error. Reset connections sometimes hung an
3006 application; this has been fixed.
3008 * Checksum calculation sometimes failed for chained pbufs with odd
3009 lengths. This has been fixed.
3011 * API: a lot of bug fixes in the API. The UDP API has been improved
3012 and tested. Error reporting and handling has been
3013 improved. Logical flaws and race conditions for incoming TCP
3014 connections has been found and removed.
3016 * Memory manager: alignment issues. Reallocating memory sometimes
3017 failed, this has been fixed.
3019 * Generic library: bcopy was flawed and has been fixed.
3023 * API: all datatypes has been changed from generic ones such as
3024 ints, to specified ones such as u16_t. Functions that return
3025 errors now have the correct type (err_t).
3027 * General: A lot of code cleaned up and debugging code removed. Many
3028 portability issues have been fixed.
3030 * The license was changed; the advertising clause was removed.
3034 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3035 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3038 (0.4) Changes since version 0.3.1
3040 * Memory management has been radically changed; instead of
3041 allocating memory from a shared heap, memory for objects that are
3042 rapidly allocated and deallocated is now kept in pools. Allocation
3043 and deallocation from those memory pools is very fast. The shared
3044 heap is still present but is used less frequently.
3046 * The memory, memory pool, and packet buffer subsystems now support
3047 4-, 2-, or 1-byte alignment.
3049 * "Out of memory" situations are handled in a more robust way.
3051 * Stack usage has been reduced.
3053 * Easier configuration of lwIP parameters such as memory usage,
3054 TTLs, statistics gathering, etc. All configuration parameters are
3055 now kept in a single header file "lwipopts.h".
3057 * The directory structure has been changed slightly so that all
3058 architecture specific files are kept under the src/arch
3061 * Error propagation has been improved, both in the protocol modules
3064 * The code for the RTXC architecture has been implemented, tested
3067 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3068 the Internet checksum modules.
3070 * Bugs related to porting between a 32-bit and a 16-bit architecture
3071 have been found and corrected.
3073 * The license has been changed slightly to conform more with the
3074 original BSD license, including the advertisement clause.
3076 (0.3.1) Changes since version 0.3
3078 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3079 RAM never returned the RAM when the pbuf was deallocated.
3081 * TCP congestion control, window updates and retransmissions did not
3082 work correctly. This has now been fixed.
3084 * Bugfixes in the API.
3086 (0.3) Changes since version 0.2
3088 * New and improved directory structure. All include files are now
3089 kept in a dedicated include/ directory.
3091 * The API now has proper error handling. A new function,
3092 netconn_err(), now returns an error code for the connection in
3095 * Improvements in the memory management subsystem. The system now
3096 keeps a pointer to the lowest free memory block. A new function,
3097 mem_malloc2() tries to allocate memory once, and if it fails tries
3098 to free some memory and retry the allocation.
3100 * Much testing has been done with limited memory
3101 configurations. lwIP now does a better job when overloaded.
3103 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3105 * Many bugfixes in the TCP code:
3107 - Fixed a bug in tcp_close().
3109 - The TCP receive window was incorrectly closed when out of
3110 sequence segments was received. This has been fixed.
3112 - Connections are now timed-out of the FIN-WAIT-2 state.
3114 - The initial congestion window could in some cases be too
3115 large. This has been fixed.
3117 - The retransmission queue could in some cases be screwed up. This
3120 - TCP RST flag now handled correctly.
3122 - Out of sequence data was in some cases never delivered to the
3123 application. This has been fixed.
3125 - Retransmitted segments now contain the correct acknowledgment
3126 number and advertised window.
3128 - TCP retransmission timeout backoffs are not correctly computed
3129 (ala BSD). After a number of retransmissions, TCP now gives up
3132 * TCP connections now are kept on three lists, one for active
3133 connections, one for listening connections, and one for
3134 connections that are in TIME-WAIT. This greatly speeds up the fast
3135 timeout processing for sending delayed ACKs.
3137 * TCP now provides proper feedback to the application when a
3138 connection has been successfully set up.
3140 * More comments have been added to the code. The code has also been
3141 somewhat cleaned up.
3143 (0.2) Initial public release.