5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-03: Simon Goldschmidt
10 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
12 2011-08-24: Simon Goldschmidt
13 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
15 2011-07-26: Simon Goldschmidt
16 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
17 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
19 2011-07-21: Simon Goldschmidt (patch by hanhui)
20 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
21 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
22 Also added code to allow ip_forward() to forward non-broadcast packets to
23 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
25 2011-07-21: Simon Goldschmidt
26 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
27 ioctl/FIONREAD return the size of the next pending datagram.
29 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
30 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
33 2011-05-25: Simon Goldschmidt
34 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
35 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
36 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
37 code so that the code is more readable.
39 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
40 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
41 Ivan! (this is work in progress: we're just post release anyway :-)
43 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
44 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
50 2011-09-03: Simon Goldschmidt
51 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
52 is aggregated and sent to application
54 2011-09-01: Simon Goldschmidt
55 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
58 2011-09-01: Simon Goldschmidt
59 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
61 2011-08-24: Simon Goldschmidt
62 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
64 2011-08-24: Simon Goldschmidt
65 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
66 accept() on UDP connections
68 2011-08-24: Simon Goldschmidt
69 * sockets.h: fixed bug #34057 socklen_t should be a typedef
71 2011-08-24: Simon Goldschmidt
72 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
74 2011-08-24: Simon Goldschmidt
75 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
77 2011-08-24: Simon Goldschmidt
78 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
80 2011-08-22: Simon Goldschmidt
81 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
82 merely prevents nagle from not transmitting fast after closing.)
84 2011-07-22: Simon Goldschmidt
85 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
86 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
87 lwip_send() sends as much as possible for non-blocking sockets
89 2011-07-22: Simon Goldschmidt
90 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
91 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
92 at regular intervals from main level.
94 2011-07-21: Simon Goldschmidt
95 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
96 sending an ARP request when an ARP entry is used in the last minute before
99 2011-07-04: Simon Goldschmidt
100 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
102 2011-06-26: Simon Goldschmidt
103 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
104 updating its documentation only.
106 2011-06-26: Simon Goldschmidt
107 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
110 2011-06-26: Simon Goldschmidt
111 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
119 2011-03-27: Simon Goldschmidt
120 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
121 calculate it in tcp_zero_window_probe (the only place where it was used).
123 2010-11-21: Simon Goldschmidt
124 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
127 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
128 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
129 IP_MULTICAST_LOOP at socket- and raw-API level.
131 2010-06-16: Simon Goldschmidt
132 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
133 link-layer-addressed UDP traffic to be received while a netif is down (just
134 like DHCP during configuration)
136 2010-05-22: Simon Goldschmidt
137 * many many files: bug #27352: removed packing from ip_addr_t, the packed
138 version is now only used in protocol headers. Added global storage for
139 current src/dest IP address while in input functions.
141 2010-05-16: Simon Goldschmidt
142 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
143 calculation (and use them throughout the stack where applicable)
145 2010-05-16: Simon Goldschmidt
146 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
147 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
149 2010-05-16: Simon Goldschmidt
150 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
151 MEMP pool instead of the heap
153 2010-05-13: Simon Goldschmidt
154 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
155 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
156 packets to more than one pcb.
158 2010-05-02: Simon Goldschmidt
159 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
160 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
162 2010-04-30: Simon Goldschmidt
163 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
164 take a precalculated checksum, added pbuf_fill_chksum() to copy data
165 into a pbuf and at the same time calculating the checksum for that data
167 2010-04-29: Simon Goldschmidt
168 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
169 2-byte-aligned IP addresses and MAC addresses
171 2010-04-28: Patch by Bill Auerbach
172 * ip.c: Inline generating IP checksum to save a function call
174 2010-04-14: Simon Goldschmidt
175 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
176 tcpip_thread processes messages or timeouts to implement a watchdog.
178 2010-03-28: Simon Goldschmidt
179 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
180 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
182 2010-03-27: Simon Goldschmidt
183 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
184 etharp_query to prevent unnecessary function calls (inspired by
187 2010-03-20: Simon Goldschmidt
188 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
189 since the linker cannot do this automatically to save space.
191 2010-03-20: Simon Goldschmidt
192 * opt.h, etharp.c/.h: Added support for static ARP table entries
194 2010-03-14: Simon Goldschmidt
195 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
196 when creating TCP segments, not when (re-)transmitting them.
198 2010-03-07: Simon Goldschmidt
199 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
200 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
201 This should speed up receiving data on sockets as the select code in
202 event_callback is only executed when select is waiting.
204 2010-03-06: Simon Goldschmidt
205 * tcp_out.c: task #7013 (Create option to have all packets delivered to
206 netif->output in one piece): Always copy to try to create single pbufs
209 2010-03-06: Simon Goldschmidt
210 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
211 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
212 for tcp netconns to receive pbufs, not netbufs; use that function
215 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
216 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
217 Work on tcp_enqueue: Don't waste memory when chaining segments,
218 added option TCP_OVERSIZE to prevent creating many small pbufs when
219 calling tcp_write with many small blocks of data. Instead, pbufs are
220 allocated larger than needed and the space is used for later calls to
223 2010-02-21: Simon Goldschmidt
224 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
227 2010-02-21: Simon Goldschmidt
228 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
229 implementation of tcp to make API usage cleare to application programmers
231 2010-02-14: Simon Goldschmidt/Stephane Lesage
232 * ip_addr.h: Improved some defines working on ip addresses, added faster
233 macro to copy addresses that cannot be NULL
235 2010-02-13: Simon Goldschmidt
236 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
237 blocking send operation)
239 2010-02-12: Simon Goldschmidt
240 * sockets.c/.h: Added a minimal version of posix fctl() to have a
241 standardised way to set O_NONBLOCK for nonblocking sockets.
243 2010-02-12: Simon Goldschmidt
244 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
245 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
246 and dhcp work with user-allocated structs instead of callin mem_malloc
248 2010-02-12: Simon Goldschmidt/Jeff Barber
249 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
250 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
252 2010-02-12: Simon Goldschmidt
253 * sys layer: task #10139 (Prefer statically allocated memory): converted
254 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
255 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
256 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
257 to let sys.h use binary semaphores instead of mutexes - as before)
259 2010-02-09: Simon Goldschmidt (Simon Kallweit)
260 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
261 (Restart system timeout handling)
263 2010-02-09: Simon Goldschmidt
264 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
265 netif.c) - loopif does not have to be created by the port any more,
266 just define LWIP_HAVE_LOOPIF to 1.
268 2010-02-08: Simon Goldschmidt
269 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
270 inet_ntoa_r/ipaddr_ntoa_r
272 2010-02-08: Simon Goldschmidt
273 * netif.h: Added netif_s/get_igmp_mac_filter() macros
275 2010-02-05: Simon Goldschmidt
276 * netif.h: Added function-like macros to get/set the hostname on a netif
278 2010-02-04: Simon Goldschmidt
279 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
280 make changing the actual implementation behind the typedef easier.
282 2010-02-01: Simon Goldschmidt
283 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
284 for allocating memory when getaddrinfo() is called.
286 2010-01-31: Simon Goldschmidt
287 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
288 them once instead of parsing for every option. This also removes
289 the need for mem_malloc from dhcp_recv and makes it possible to
290 correctly retrieve the BOOTP file.
292 2010-01-30: simon Goldschmidt
293 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
296 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
297 * api.h, api_msg.c, sockets.c: Added except set support in select
300 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
301 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
302 Add non-blocking support for connect (partly from patch #6860),
303 plus many cleanups in socket & netconn API.
305 2010-01-27: Simon Goldschmidt
306 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
307 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
309 2010-01-26: Simon Goldschmidt
310 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
312 2010-01-14: Simon Goldschmidt
313 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
314 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
316 2010-01-13: Simon Goldschmidt
317 * mem.c: The heap now may be moved to user-defined memory by defining
318 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
319 (patch #6966 and bug #26133)
321 2010-01-10: Simon Goldschmidt (Bill Auerbach)
322 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
325 2010-01-10: Simon Goldschmidt
326 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
327 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
329 2009-12-31: Simon Goldschmidt
330 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
331 added timers.c/.h: Separated timer implementation from semaphore/mbox
332 implementation, moved timer implementation to timers.c/.h, timers are
333 now only called from tcpip_thread or by explicitly checking them.
336 2009-12-27: Simon Goldschmidt
337 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
338 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
343 2011-04-20: Simon Goldschmidt
344 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
346 2011-04-13: Simon Goldschmidt
347 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
348 using ports in the IANA private/dynamic range (49152 through 65535).
350 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
351 * etharp.h/.c: Fixed broken VLAN support.
353 2011-03-27: Simon Goldschmidt
354 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
355 pcbs) by checking if the pcb was bound (local_port != 0).
357 2011-03-27: Simon Goldschmidt
358 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
360 2011-03-27: Simon Goldschmidt
361 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
362 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
364 2011-03-27: Simon Goldschmidt
365 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
366 is present never times out) by starting retransmission timer before checking
369 2011-03-22: Simon Goldschmidt
370 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
371 calling sio_read_abort() if the file descriptor is valid.
373 2011-03-14: Simon Goldschmidt
374 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
375 more than once can render a socket useless) since it mainly involves changing
376 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
378 2011-03-13: Simon Goldschmidt
379 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
380 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
381 use EALRADY instead of -1
383 2011-03-13: Simon Goldschmidt
384 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
385 connection has been aborted by err_tcp (since this is not a normal closing
388 2011-03-13: Simon Goldschmidt
389 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
390 with pcb->state != CLOSED
392 2011-02-17: Simon Goldschmidt
393 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
396 2011-02-17: Simon Goldschmidt
397 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
399 2011-01-24: Simon Goldschmidt
400 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
402 2010-12-02: Simon Goldschmidt
403 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
405 2010-11-23: Simon Goldschmidt
406 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
407 LWIP_SO_RCVBUF and ioctl/FIONREAD.
409 2010-11-23: Simon Goldschmidt
410 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
411 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
413 2010-11-23: Simon Goldschmidt
414 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
415 refusing 'refused_data' again.
417 2010-11-22: Simon Goldschmidt
418 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
419 after a successful nonblocking connection.
421 2010-11-22: Simon Goldschmidt
422 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
423 must be sent link-local
425 2010-11-22: Simon Goldschmidt
426 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
429 2010-11-20: Simon Goldschmidt
430 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
432 2010-11-20: Simon Goldschmidt
433 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
434 resemble other stacks.
436 2010-11-20: Simon Goldschmidt
437 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
438 no-copy TCP writes will never succeed.
440 2010-11-20: Simon Goldschmidt
441 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
442 not match documentation: return ERR_ARG instead of ERR_VAL if not
443 initialized or wrong argument.
445 2010-10-20: Simon Goldschmidt
446 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
448 2010-10-05: Simon Goldschmidt
449 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
450 replugging the network cable after an AutoIP address was assigned.
452 2010-08-10: Simon Goldschmidt
453 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
455 2010-08-03: Simon Goldschmidt
456 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
458 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
459 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
460 endian architectures)
462 2010-07-28: Simon Goldschmidt
463 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
466 2010-07-27: Simon Goldschmidt
467 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
468 harm but never did anything
470 2010-07-21: Simon Goldschmidt
471 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
474 2010-07-16: Kieran Mansley
475 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
477 2010-07-10: Simon Goldschmidt
478 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
480 2010-06-30: Simon Goldschmidt
481 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
484 2010-06-28: Kieran Mansley
485 * timers.c remove unportable printing of C function pointers
487 2010-06-24: Simon Goldschmidt
488 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
489 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
491 2010-06-24: Simon Goldschmidt
492 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
493 implemented shutdown at socket level.
495 2010-06-21: Simon Goldschmidt
496 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
497 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
498 custom pbufs that reference other (original) pbufs. Additionally set
499 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
501 2010-06-15: Simon Goldschmidt
502 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
504 2010-06-14: Simon Goldschmidt
505 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
507 2010-06-12: Simon Goldschmidt
508 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
511 2010-05-17: Simon Goldschmidt
512 * netdb.c: Correctly NULL-terminate h_addr_list
514 2010-05-16: Simon Goldschmidt
515 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
516 "symbol already defined" i.e. when linking to winsock
518 2010-05-05: Simon Goldschmidt
519 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
522 2010-04-21: Simon Goldschmidt
523 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
526 2010-03-28: Luca Ceresoli
527 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
529 2010-03-27: Luca Ceresoli
530 * mib2.c: patch #7130: remove meaningless const qualifiers
532 2010-03-26: Simon Goldschmidt
533 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
535 2010-03-26: Simon Goldschmidt
536 * various files: Fixed compiling with different options disabled (TCP/UDP),
537 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
539 2010-03-25: Simon Goldschmidt
540 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
542 2010-03-25: Simon Goldschmidt
543 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
544 overrunning our rcv_wnd in ooseq case.
546 2010-03-22: Simon Goldschmidt
547 * tcp.c: tcp_listen() did not copy the pcb's prio.
549 2010-03-19: Simon Goldschmidt
550 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
552 2010-03-14: Simon Goldschmidt
553 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
554 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
555 and basing PBUF_LINK_HLEN on it.
557 2010-03-08: Simon Goldschmidt
558 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
559 when assiging routable address): when checking incoming packets and
560 aborting existing connection on address change, filter out link-local
563 2010-03-06: Simon Goldschmidt
564 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
566 2010-03-06: Simon Goldschmidt
567 * ipv4/ip.c: Don't try to forward link-local addresses
569 2010-03-06: Simon Goldschmidt
570 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
573 2010-03-05: Simon Goldschmidt
574 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
577 2010-03-05: Simon Goldschmidt
578 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
579 into multiple calls to tcp_write.
581 2010-02-21: Simon Goldschmidt
582 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
583 the implementation of DNS_USES_STATIC_BUF==1)
585 2010-02-20: Simon Goldschmidt
586 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
587 close() vs. shutdown(). Now the application does not get any more
588 recv callbacks after calling tcp_close(). Added tcp_shutdown().
590 2010-02-19: Simon Goldschmidt
591 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
592 confusion with realloc()
594 2010-02-15: Simon Goldschmidt/Stephane Lesage
595 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
598 2010-02-14: Simon Goldschmidt
599 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
600 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
601 admin-status of a netif are up
603 2010-02-14: Simon Goldschmidt
604 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
605 reception and is not really necessary
607 2010-02-14: Simon Goldschmidt
608 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
609 request was directed as us (RFC 826, Packet Reception), otherwise
610 only update existing entries; internalized some functions
612 2010-02-14: Simon Goldschmidt
613 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
614 disabled on netif used for PPPoE) by adding a new netif flag
615 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
616 device but prevents usage of ARP (so that ethernet_input can be used
619 2010-02-12: Simon Goldschmidt
620 * netif.c: netif_set_link_up/down: only do something if the link state
623 2010-02-12: Simon Goldschmidt/Stephane Lesage
624 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
627 2010-02-12: Simon Goldschmidt
628 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
630 2010-02-09: Simon Goldschmidt
631 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
632 (recv() makes receive window update for data that wasn't received by
635 2010-02-09: Simon Goldschmidt/Stephane Lesage
636 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
637 or any netconn_recv() error)
639 2010-02-09: Simon Goldschmidt
640 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
642 2010-02-09: Simon Goldschmidt
643 * netif.c: For loopback packets, adjust the stats- and snmp-counters
644 for the loopback netif.
646 2010-02-08: Simon Goldschmidt
647 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
648 since they are not used anywhere else.
650 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
651 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
652 (patch from bug #28798)
654 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
655 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
656 another bug when LWIP_RAND() returns zero.
658 2010-02-04: Simon Goldschmidt
659 * nearly every file: Use macros defined in ip_addr.h (some of them new)
660 to work with IP addresses (preparation for bug #27352 - Change ip_addr
661 from struct to typedef (u32_t) - and better code).
663 2010-01-31: Simon Goldschmidt
664 * netif.c: Don't call the link-callback from netif_set_up/down() since
665 this invalidly retriggers DHCP.
667 2010-01-29: Simon Goldschmidt
668 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
669 portability file inet.h and its contents from the stack: moved htonX-
670 functions to def.h (and the new def.c - they are not ipv4 dependent),
671 let inet.h depend on ip_addr.h and not the other way round.
672 This fixes bug #28732.
674 2010-01-28: Kieran Mansley
675 * tcp.c: Ensure ssthresh >= 2*MSS
677 2010-01-27: Simon Goldschmidt
678 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
679 callback can lead to accessing unallocated memory. As a consequence,
680 ERR_ABRT means the application has called tcp_abort()!
682 2010-01-25: Simon Goldschmidt
683 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
684 not implemented in SNMP): write-only or not-accessible are still
685 returned by getnext (though not by get)
687 2010-01-24: Simon Goldschmidt
688 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
689 not use reserved C/C++ keywords
691 2010-01-23: Simon Goldschmidt
692 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
695 2010-01-21: Simon Goldschmidt
696 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
697 if tcp_enqueue fails) both in raw- and netconn-API
699 2010-01-19: Simon Goldschmidt
700 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
702 2010-01-18: Iordan Neshev/Simon Goldschmidt
703 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
704 bugfix backports from 2.4.x.
706 2010-01-18: Simon Goldschmidt
707 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
709 2010-01-17: Simon Goldschmidt
710 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
711 task #10102: "netconn: clean up conn->err threading issues" by adding
712 error return value to struct api_msg_msg
714 2010-01-17: Simon Goldschmidt
715 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
716 to return err_t (bugs #27709 and #28087)
718 2010-01-14: Simon Goldschmidt
719 * ...: Use typedef for function prototypes throughout the stack.
721 2010-01-13: Simon Goldschmidt
722 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
723 window = 0) by correctly draining recvmbox/acceptmbox
725 2010-01-11: Simon Goldschmidt
726 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
727 erroneous callbacks) by copying the code from recent pppd
729 2010-01-10: Simon Goldschmidt
730 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
732 2010-01-10: Simon Goldschmidt
733 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
735 2010-01-08: Simon Goldschmidt
736 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
738 2010-01-08: Simon Goldschmidt
739 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
740 passed to dns_local_addhost() might be volatile
742 2010-01-07: Simon Goldschmidt
743 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
745 2010-01-06: Simon Goldschmidt
746 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
748 2009-12-31: Simon Goldschmidt
749 * many ppp files: Reorganised PPP source code from ucip structure to pppd
750 structure to easily compare our code against the pppd code (around v2.3.1)
752 2009-12-27: Simon Goldschmidt
753 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
761 2009-10-27 Simon Goldschmidt/Stephan Lesage
762 * netifapi.c/.h: Added netifapi_netif_set_addr()
764 2009-10-07 Simon Goldschmidt/Fabian Koch
765 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
766 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
768 2009-08-26 Simon Goldschmidt/Simon Kallweit
769 * slipif.c/.h: bug #26397: SLIP polling support
771 2009-08-25 Simon Goldschmidt
772 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
773 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
775 2009-08-25 Simon Goldschmidt
776 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
778 2009-08-24 Jakob Stoklund Olesen
779 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
780 to netif_set_link_up().
782 2009-08-23 Simon Goldschmidt
783 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
784 to a human-readable string.
788 2009-12-24: Kieran Mansley
789 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
792 2009-12-06: Simon Goldschmidt
793 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
794 be statically allocated (like in ucip)
796 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
797 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
799 2009-12-03: Simon Goldschmidt
800 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
801 could have non-zero length
803 2009-12-02: Simon Goldschmidt
804 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
805 tcp_input_pcb until after calling the pcb's callbacks
807 2009-11-29: Simon Goldschmidt
808 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
809 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
811 2009-11-29: Simon Goldschmidt
812 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
813 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
815 2009-11-26: Simon Goldschmidt
816 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
819 2009-11-26: Simon Goldschmidt
820 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
821 algorithm at PCB level
823 2009-11-22: Simon Goldschmidt
824 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
826 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
827 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
828 reusing time-wait pcb
830 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
831 * sockets.c: Fixed bug #28062: Data received directly after accepting
832 does not wake up select
834 2009-11-11: Simon Goldschmidt
835 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
837 2009-10-30: Simon Goldschmidt
838 * opt.h: Increased default value for TCP_MSS to 536, updated default
839 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
841 2009-10-28: Kieran Mansley
842 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
843 to follow algorithm from TCP/IP Illustrated
845 2009-10-27: Kieran Mansley
846 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
848 2009-10-25: Simon Goldschmidt
849 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
850 pcb->recv is NULL to keep rcv_wnd correct)
852 2009-10-25: Simon Goldschmidt
853 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
855 2009-10-23: Simon Goldschmidt (David Empson)
856 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
858 2009-10-21: Simon Goldschmidt
859 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
860 trailing 1 byte len (SYN/FIN)
862 2009-10-21: Simon Goldschmidt
863 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
865 2009-10-19: Simon Goldschmidt
866 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
867 conditional code to assert where applicable), check pbuf length before
868 testing for valid reply
870 2009-10-19: Simon Goldschmidt
871 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
872 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
874 2009-10-16: Simon Goldschmidt
875 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
876 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
879 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
880 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
882 2009-10-15: Simon Goldschmidt
883 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
886 2009-10-15: Simon Goldschmidt
887 * autoip.c: Fixed bug #27704: autoip starts with wrong address
888 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
889 of network byte order
891 2009-10-11 Simon Goldschmidt (Jörg Kesten)
892 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
893 which are not consecutive when retransmitting unacked segments
895 2009-10-09 Simon Goldschmidt
896 * opt.h: Fixed default values of some stats to only be enabled if used
897 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
899 2009-08-30 Simon Goldschmidt
900 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
901 function" by checking for loopback before calling ip_frag
903 2009-08-25 Simon Goldschmidt
904 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
906 2009-08-23 Simon Goldschmidt
907 * ppp.c: bug #27078: Possible memory leak in pppInit()
909 2009-08-23 Simon Goldschmidt
910 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
913 2009-08-23 Simon Goldschmidt
914 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
915 Fixed wrong parenthesis, added check in init.c
917 2009-08-23 Simon Goldschmidt
918 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
920 2009-08-23 Simon Goldschmidt
921 * many ppp files: bug #27267: Added include to string.h where needed
923 2009-08-23 Simon Goldschmidt
924 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
931 2009-05-10 Simon Goldschmidt
932 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
933 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
934 one pbuf to help MACs that don't support scatter-gather DMA.
936 2009-05-09 Simon Goldschmidt
937 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
938 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
940 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
941 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
942 extended info about the currently received packet.
944 2009-04-27 Simon Goldschmidt
945 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
947 2009-04-25 Simon Goldschmidt
948 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
949 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
951 2009-04-21 Simon Goldschmidt
952 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
953 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
954 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
955 as an external function for lookup.
957 2009-04-15 Simon Goldschmidt
958 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
960 2009-03-31 Kieran Mansley
961 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
962 TCP timestamp options, off by default. Rework tcp_enqueue() to
963 take option flags rather than specified option data
965 2009-02-18 Simon Goldschmidt
966 * cc.h: Added printf formatter for size_t: SZT_F
968 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
969 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
972 2009-02-12 Simon Goldschmidt
973 * init.h: Added LWIP_VERSION to get the current version of the stack
975 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
976 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
977 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
980 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
981 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
982 is only used by UDPLITE at present, so conditionalise it.
984 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
985 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
986 "seed" address. This should reduce AUTOIP conflicts if
987 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
989 2008-10-02 Jonathan Larmour and Rishi Khan
990 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
993 2008-06-30 Simon Goldschmidt
994 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
995 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
996 mem_free to run between mem_malloc iterations. Added illegal counter for
999 2008-06-27 Simon Goldschmidt
1000 * stats.h/.c, some other files: patch #6483: stats module improvement:
1001 Added defines to display each module's statistic individually, added stats
1002 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1004 2008-06-17 Simon Goldschmidt
1005 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1006 (define LWIP_ERR_T in cc.h)
1008 2008-06-17 Simon Goldschmidt
1009 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1012 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1013 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1014 modified version of patch # 6370: Moved loopif code to netif.c so that
1015 loopback traffic is supported on all netifs (all local IPs).
1016 Added option to limit loopback packets for each netifs.
1020 2009-08-12 Kieran Mansley
1021 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1022 out of window or out of order properly
1024 2009-08-12 Kieran Mansley
1025 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1027 2009-07-28 Simon Goldschmidt
1028 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1030 2009-07-27 Kieran Mansley
1031 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1033 2009-07-09 Kieran Mansley
1034 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1035 recv_avail and don't increment counters until message successfully
1038 2009-06-25 Kieran Mansley
1039 * api_msg.c api.h: BUG26722: initialise netconn write variables
1042 2009-06-25 Kieran Mansley
1043 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1045 2009-06-25 Kieran Mansley
1046 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1047 simultaneous close behaviour, and make snd_nxt have the same meaning
1050 2009-05-12 Simon Goldschmidt
1051 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1052 arp_table / uses etharp_query" by adding etharp_gratuitous()
1054 2009-05-12 Simon Goldschmidt
1055 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1056 to the IP header (used by igmp_ip_output_if)
1058 2009-05-06 Simon Goldschmidt
1059 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1060 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1062 2009-05-05 Simon Goldschmidt
1063 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1066 2009-05-04 Simon Goldschmidt
1067 * init.c: snmp was not initialized in lwip_init()
1069 2009-05-04 Frédéric Bernon
1070 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1072 2009-05-03 Simon Goldschmidt
1073 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1074 (and unsent->next == NULL)
1076 2009-05-02 Simon Goldschmidt
1077 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1078 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1080 2009-05-02 Simon Goldschmidt
1081 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1083 2009-05-01 Simon Goldschmidt
1084 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1086 2009-05-01 Simon Goldschmidt
1087 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1089 2009-04-29 Frédéric Bernon
1090 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1091 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1092 of broadcast packets even when this option wasn't set. Port maintainers
1093 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1094 If you want this option also filter broadcast on recv operations, you also
1095 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1097 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1098 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1099 DHCP/AUTOIP cooperation
1101 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1102 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1103 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1104 right place in tcp_output and tcp_rexmit).
1106 2009-04-25 Simon Goldschmidt
1107 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1108 when debugging": memp_sizes contained the wrong sizes (including sanity
1109 regions); memp pools for MEM_USE_POOLS were too small
1111 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1112 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1113 behavior, with with ip address string not ended by a '\0', a space or a
1116 2009-04-19 Simon Goldschmidt
1117 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1118 pcb->err is called, not pcb->connected (with an error code).
1120 2009-04-19 Simon Goldschmidt
1121 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1122 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1124 2009-04-19 Simon Goldschmidt
1125 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1126 in the header pbuf, not the data pbuf)
1128 2009-04-18 Simon Goldschmidt
1129 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1131 2009-04-15 Simon Goldschmidt
1132 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1134 2009-04-15 Simon Goldschmidt
1135 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1137 2009-04-15 Simon Goldschmidt
1138 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1139 ip_hinted_output() (for smaller code mainly)
1141 2009-04-15 Simon Goldschmidt
1142 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1144 2009-04-15 Simon Goldschmidt
1145 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1146 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1147 is big enough in dhcp_start
1149 2009-04-15 Simon Goldschmidt
1150 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1152 2009-04-15 Simon Goldschmidt
1153 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1155 2009-04-15 Simon Goldschmidt
1156 * sockets.c: bug #26121: set_errno can be overridden
1158 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1159 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1162 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1163 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1166 2009-03-31 Kieran Mansley
1167 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1168 updates are calculated and sent (BUG20515)
1170 * tcp_in.c: cope with SYN packets received during established states,
1171 and retransmission of initial SYN.
1173 * tcp_out.c: set push bit correctly when tcp segments are merged
1175 2009-03-27 Kieran Mansley
1176 * tcp_out.c set window correctly on probes (correcting change made
1179 2009-03-26 Kieran Mansley
1180 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1181 connections where no reset required (bug #25622)
1183 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1186 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1187 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1188 too small depending on MEM_ALIGNMENT
1190 2009-02-16 Simon Goldschmidt
1191 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1192 converted size argument of netconn_write to 'size_t'
1194 2009-02-16 Simon Goldschmidt
1195 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1196 by moving accept callback function pointer to TCP_PCB_COMMON
1198 2009-02-12 Simon Goldschmidt
1199 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1202 2009-02-11 Simon Goldschmidt
1203 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1205 2009-02-11 Simon Goldschmidt
1206 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1207 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1209 2009-02-10 Simon Goldschmidt
1210 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1211 Accepts_pending is decrease on a corresponding listen pcb when a connection
1212 in state SYN_RCVD is close.
1214 2009-01-28 Jonathan Larmour
1215 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1218 2008-12-19 Simon Goldschmidt
1219 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1221 2008-12-10 Tamas Somogyi, Frédéric Bernon
1222 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1223 port uses deleted netbuf.
1225 2008-10-18 Simon Goldschmidt
1226 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1229 2008-10-15 Simon Goldschmidt
1230 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1231 by packing the struct ip_reass_helper.
1233 2008-10-03 David Woodhouse, Jonathan Larmour
1234 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1236 2008-10-02 Jonathan Larmour
1237 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1238 padding is included.
1240 2008-09-30 Jonathan Larmour
1241 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1242 assertion check that addrlen isn't NULL.
1244 2008-09-30 Jonathan Larmour
1245 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1247 2008-08-26 Simon Goldschmidt
1248 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1249 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1251 2008-08-14 Simon Goldschmidt
1252 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1253 tcp_close returns != ERR_OK)
1255 2008-07-08 Frédéric Bernon
1256 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1257 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1259 2008-06-24 Jonathan Larmour
1260 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1261 if tcp_seg_copy fails.
1263 2008-06-17 Simon Goldschmidt
1264 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1265 and created defines for swapping bytes and folding u32 to u16.
1267 2008-05-30 Kieran Mansley
1268 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1269 rather than rcv_ann_wnd when deciding if packets are in-window.
1270 Contributed by <arasmussen@consultant.datasys.swri.edu>
1272 2008-05-30 Kieran Mansley
1273 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1274 passing as function pointers when MEM_LIBC_MALLOC is defined.
1276 2008-05-09 Jonathan Larmour
1277 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1278 stop it being treated as a fatal error.
1280 2008-04-15 Simon Goldschmidt
1281 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1284 2008-03-27 Simon Goldschmidt
1285 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1286 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1287 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1288 or heap memory from interrupt context
1290 2008-03-26 Simon Goldschmidt
1291 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1292 host sent a zero mss as TCP option.
1299 2008-03-10 Jonathan Larmour
1300 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1301 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1303 2008-01-22 Frédéric Bernon
1304 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1305 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1307 2008-01-14 Frédéric Bernon
1308 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1309 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1310 tcp_recv callback (see rawapi.txt).
1312 2008-01-14 Frédéric Bernon, Marc Chaland
1313 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1315 2008-01-12 Frédéric Bernon
1316 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1317 netconn::sem per netconn::op_completed like suggested for the task #7490
1318 "Add return value to sys_mbox_post".
1320 2008-01-12 Frédéric Bernon
1321 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1322 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1323 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1325 2008-01-10 Frédéric Bernon
1326 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1327 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1328 "blocking" ("block" parameter = 1).
1330 2008-01-10 Frédéric Bernon
1331 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1332 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1333 "Add return value to sys_mbox_post".
1335 2008-01-05 Frédéric Bernon
1336 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1337 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1338 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1339 indicate the number of pointers query by the mailbox. There is three defines
1340 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1341 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1342 parameter in your implementation, but to ignore it to keep the previous behavior.
1343 The new sys_mbox_trypost function return a value to know if the mailbox is
1344 full or if the message is posted. Take a look to sys_arch.txt for more details.
1345 This new function is used in tcpip_input (so, can be called in an interrupt
1346 context since the function is not blocking), and in recv_udp and recv_raw.
1348 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1349 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1350 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1351 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1352 documentation in the rawapi.txt file.
1354 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1355 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1357 2007-12-31 Frédéric Bernon, Luca Ceresoli
1358 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1359 in autoip". The change in etharp_raw could be removed, since all calls to
1360 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1361 wrong in the future.
1363 2007-12-30 Frédéric Bernon, Tom Evans
1364 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1365 Filtering" reported by Tom Evans.
1367 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1368 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1369 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1370 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1371 keep accepting new connections.
1373 2007-12-13 Frédéric Bernon
1374 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1375 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1377 2007-12-12 Frédéric Bernon
1378 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1379 are the one which have ram usage.
1381 2007-12-05 Frédéric Bernon
1382 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1383 set of variables (=0) or a local one (=1). In this last case, your port should
1384 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1385 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1387 2007-12-03 Simon Goldschmidt
1388 * ip.c: ip_input: check if a packet is for inp first before checking all other
1389 netifs on netif_list (speeds up packet receiving in most cases)
1391 2007-11-30 Simon Goldschmidt
1392 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1393 UDP: move a (connected) pcb selected for input to the front of the list of
1394 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1397 2007-11-28 Simon Goldschmidt
1398 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1400 2007-11-25 Simon Goldschmidt
1401 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1404 2007-11-24 Simon Goldschmidt
1405 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1406 to the new file netdb.c; included lwip_getaddrinfo.
1408 2007-11-21 Simon Goldschmidt
1409 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1410 based on the MTU of the netif used to send. Enabled by default. Disable by
1411 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1413 2007-11-19 Frédéric Bernon
1414 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1415 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1416 copy dns payload to parse the response), return an error if there is no place
1417 for a new query, and fix some minor problems.
1419 2007-11-16 Simon Goldschmidt
1420 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1421 removed files: core/inet.c, core/inet6.c
1422 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1423 inet and chksum part; changed includes in all lwIP files as appropriate
1425 2007-11-16 Simon Goldschmidt
1426 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1427 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1428 (gethostbyname/gethostbyname_r).
1430 2007-11-15 Jim Pettinato, Frédéric Bernon
1431 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1432 requests with RAW api interface. Initialization is done in lwip_init() with
1433 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1434 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1435 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1436 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1437 list with points to improve.
1439 2007-11-06 Simon Goldschmidt
1440 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1441 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1442 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1444 2007-11-06 Simon Goldschmidt
1445 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1446 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1447 implementation from netconn api applications.
1449 2007-11-03 Frédéric Bernon
1450 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1451 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1452 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1453 it. This is a first release which have to be improve for TCP. Note it used the
1454 netconn::recv_avail which need to be more "thread-safe" (note there is already
1455 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1457 2007-11-01 Frédéric Bernon, Marc Chaland
1458 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1459 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1460 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1461 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1462 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1464 2007-10-24 Frédéric Bernon
1465 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1466 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1467 some code (like we have talk in "patch #5919 : Create compile switch to remove
1468 select code"), but it could be done later.
1470 2007-10-08 Simon Goldschmidt
1471 * many files: Changed initialization: many init functions are not needed any
1472 more since we now rely on the compiler initializing global and static
1475 2007-10-06 Simon Goldschmidt
1476 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1477 to enqueue the received pbufs so that multiple packets can be reassembled
1478 simultaneously and no static reassembly buffer is needed.
1480 2007-10-05 Simon Goldschmidt
1481 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1482 all netifs (or ports) can use it.
1484 2007-10-05 Frédéric Bernon
1485 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1486 common function to reduce a little bit the footprint (for all functions using
1487 only the "netif" parameter).
1489 2007-10-03 Frédéric Bernon
1490 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1491 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1492 a little bit the footprint (for all functions using only the "netif" parameter).
1494 2007-09-15 Frédéric Bernon
1495 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1496 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1497 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1498 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1500 2007-09-10 Frédéric Bernon
1501 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1502 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1503 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1504 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1505 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1506 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1507 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1508 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1509 when it's queried (any direct call to "sysuptime" is changed by a call to
1510 snmp_get_sysuptime).
1512 2007-09-09 Frédéric Bernon, Bill Florac
1513 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1514 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1515 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1516 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1517 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1518 the next query message to receive the matching multicast streams).
1520 2007-09-08 Frédéric Bernon
1521 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1522 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1523 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1524 Enable to access to these fields with LWIP_TCP=0.
1526 2007-09-05 Frédéric Bernon
1527 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1528 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1529 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1530 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1531 help to reduce footprint, and to reduce "visibility" on the Internet.
1533 2007-09-05 Frédéric Bernon, Bill Florac
1534 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1535 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1536 parameters have to be provided: a task name, and a task stack size. For this
1537 one, since it's platform dependant, you could define the best one for you in
1538 your lwipopts.h. For port maintainers, you can just add these new parameters
1539 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1542 2007-09-05 Frédéric Bernon
1543 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1544 inside init.c for task #7142 "Sanity check user-configurable values".
1546 2007-09-04 Frédéric Bernon, Bill Florac
1547 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1548 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1549 value). It will avoid potential fragmentation problems, use a counter to know
1550 how many times a group is used on an netif, and free it when all applications
1551 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1552 check if LWIP_IGMP!=0).
1554 2007-09-03 Frédéric Bernon
1555 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1556 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1557 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1558 and/or the "interface" field (for netconn layer), for join/leave operations.
1559 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1560 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1562 2007-08-30 Frédéric Bernon
1563 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1564 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1565 with other API (application based on raw API, or future "socket2" API). Ports
1566 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1568 2007-08-30 Frédéric Bernon, Jonathan Larmour
1569 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1570 user-configurable values".
1572 2007-08-29 Frédéric Bernon
1573 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1574 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1575 spirit than the others modules. Modify some IGMP debug traces.
1577 2007-08-29 Frédéric Bernon
1578 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1579 Add lwip_init function to regroup all modules initializations, and to provide
1580 a place to add code for task #7142 "Sanity check user-configurable values".
1581 Ports maintainers should remove direct initializations calls from their code,
1582 and add init.c in their makefiles. Note that lwip_init() function is called
1583 inside tcpip_init, but can also be used by raw api users since all calls are
1584 disabled when matching options are disabled. Also note that their is new options
1585 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1587 2007-08-26 Marc Boucher
1588 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1589 since they can under certain circumstances be called with an invalid conn
1590 pointer after the connection has been closed (and conn has been freed).
1592 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1593 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1594 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1596 2007-08-22 Frédéric Bernon
1597 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1598 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1600 2007-08-22 Frédéric Bernon
1601 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1602 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1603 name is tcpip_input (we keep the name of 1.2.0 function).
1605 2007-08-17 Jared Grubb
1606 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1607 settings into new memp_std.h and optional user file lwippools.h. This adds
1608 more dynamic mempools, and allows the user to create an arbitrary number of
1609 mempools for mem_malloc.
1611 2007-08-16 Marc Boucher
1612 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1613 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1614 close the connection.
1616 2007-08-16 Marc Boucher
1617 * sockets.c: lwip_accept(): check netconn_peer() error return.
1619 2007-08-16 Marc Boucher
1620 * mem.c, mem.h: Added mem_calloc().
1622 2007-08-16 Marc Boucher
1623 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1624 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1625 and starving other message types.
1626 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1628 2007-08-16 Marc Boucher
1629 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1630 type and flgs (later renamed to flags).
1631 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1632 Improved lwip_recvfrom(). TCP push now propagated.
1634 2007-08-16 Marc Boucher
1635 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1638 2007-08-16 Marc Boucher
1639 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1640 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1641 Added PPPoE support and various PPP improvements.
1643 2007-07-25 Simon Goldschmidt
1644 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1645 making netbuf_copy_partial use this function.
1647 2007-07-25 Simon Goldschmidt
1648 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1649 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1652 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1653 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1654 a link callback in the netif struct, and functions to handle it. Be carefull
1655 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1656 if you want to be sure to be compatible with future changes...
1658 2007-06-30 Frédéric Bernon
1659 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1661 2007-06-21 Simon Goldschmidt
1662 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1663 LWIP_AUTOIP =0 and =1 to remove redundant code.
1665 2007-06-21 Simon Goldschmidt
1666 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1667 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1668 heap. This both prevents memory fragmentation and gives a higher speed
1669 at the cost of more memory consumption. Turned off by default.
1671 2007-06-21 Simon Goldschmidt
1672 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1673 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1674 int to be able to send a bigger buffer than 64K with one time (mainly
1675 used from lwip_send).
1677 2007-06-21 Simon Goldschmidt
1678 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1679 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1681 2007-06-21 Simon Goldschmidt
1682 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1683 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1684 changes on low memory or empty send-buffer.
1686 2007-06-18 Simon Goldschmidt
1687 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1688 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1689 used for ethernet and struct eth_addr already had a defined length of 6).
1691 2007-06-17 Simon Goldschmidt
1692 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1693 to disable UDP checksum generation on transmit.
1695 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1696 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1697 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1698 this macro to check "conn" parameter in api_msg.c functions.
1700 2007-06-11 Simon Goldschmidt
1701 * sockets.c, sockets.h: Added UDP lite support for sockets
1703 2007-06-10 Simon Goldschmidt
1704 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1705 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1708 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1709 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1710 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1711 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1712 (see TODO mark in the source code).
1714 2007-06-09 Simon Goldschmidt
1715 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1716 etharp_output() to match netif->output so etharp_output() can be used
1717 directly as netif->output to save one function call.
1719 2007-06-08 Simon Goldschmidt
1720 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1721 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1722 added initialization of those to ethernetif, slipif and loopif.
1724 2007-05-18 Simon Goldschmidt
1725 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1726 (defaulting to off for now) that can be set to 0 to send fragmented
1727 packets by passing PBUF_REFs down the stack.
1729 2007-05-23 Frédéric Bernon
1730 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1731 connections, such present in patch #5959.
1733 2007-05-23 Frédéric Bernon
1734 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1735 code in only one part...
1737 2007-05-18 Simon Goldschmidt
1738 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1739 elements to overflow. This is achieved by adding some bytes before and after
1740 each pool element (increasing their size, of course), filling them with a
1741 prominent value and checking them on freeing the element.
1742 Set it to 2 to also check every element in every pool each time memp_malloc()
1743 or memp_free() is called (slower but more helpful).
1745 2007-05-10 Simon Goldschmidt
1746 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1747 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1750 2007-05-11 Frédéric Bernon
1751 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1752 Include a function pointer instead of a table index in the message to reduce
1753 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1754 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1756 2007-05-10 Simon Goldschmidt
1757 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1758 \ extern "C" {' in all header files. Now you can write your application using
1759 the lwIP stack in C++ and simply #include the core files. Note I have left
1760 out the netif/ppp/*h header files for now, since I don't know which files are
1761 included by applications and which are for internal use only.
1763 2007-05-09 Simon Goldschmidt
1764 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1765 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1766 situations where some compilers might inline the copy and save a function
1767 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1769 2007-05-08 Simon Goldschmidt
1770 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1771 to be overriden in case the C-library malloc implementation is not protected
1772 against concurrent access.
1774 2007-05-04 Simon Goldschmidt (Atte Kojo)
1775 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1776 multiple packets to the same host.
1778 2007-05-04 Frédéric Bernon, Jonathan Larmour
1779 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1780 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1781 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1782 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1783 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1784 these fields are now renamed "addr" & "port".
1786 2007-04-11 Jonathan Larmour
1787 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1788 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1789 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1790 by the port in sys_arch.h if desired.
1792 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1793 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1794 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1795 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1797 2007-04-05 Frédéric Bernon
1798 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1800 2007-04-04 Simon Goldschmidt
1801 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1802 use this for and architecture-independent form to tell the compiler you intentionally
1803 are not using this variable. Can be overriden in cc.h.
1805 2007-03-28 Frédéric Bernon
1806 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1807 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1808 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1809 It will be used by DHCP to register a client hostname, but can also be use when you call
1812 2007-03-28 Frédéric Bernon
1813 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1814 initialize a network interface's flag with. It tell this interface is an ethernet
1815 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1816 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1818 2007-03-26 Frédéric Bernon, Jonathan Larmour
1819 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1820 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1821 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1822 is done in tcpip_init function.
1824 2007-03-22 Frédéric Bernon
1825 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1826 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1827 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1828 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1829 but never used. Fix msg_in.c with the correct #if test for a stat display.
1831 2007-03-21 Kieran Mansley
1832 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1833 Provides callback on netif up/down state change.
1835 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1836 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1837 ip.c, netif.h, tcpip.c, opt.h:
1838 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1839 filter per all network interfaces. Declare a new function in netif to enable to
1840 control the MAC filter (to reduce lwIP traffic processing).
1842 2007-03-11 Frédéric Bernon
1843 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1844 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1845 unless you know what you're doing (default are RFC1122 compliant). Note
1846 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1848 2007-03-08 Frédéric Bernon
1849 * tcp.h: Keepalive values can be configured at compile time, but don't change
1850 this unless you know what you're doing (default are RFC1122 compliant).
1852 2007-03-08 Frédéric Bernon
1853 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1854 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1855 on UDP sockets/netconn.
1857 2007-03-08 Simon Goldschmidt
1858 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1860 2007-03-06 Frédéric Bernon
1861 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1862 Implement SO_RCVTIMEO on UDP sockets/netconn.
1864 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1865 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1866 on the stack and remove the API msg type from memp
1868 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1869 * sockets.h, sockets.c: Move socket initialization to new
1870 lwip_socket_init() function.
1871 NOTE: this changes the API with ports. Ports will have to be
1872 updated to call lwip_socket_init() now.
1874 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1875 * api_lib.c: Use memcpy in netbuf_copy_partial.
1880 2008-03-17 Frédéric Bernon, Ed Kerekes
1881 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1882 some problems to fill the IP header on some targets, use now the
1883 ip.h macros to do it).
1885 2008-03-13 Frédéric Bernon
1886 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1887 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1888 TCP connection caused a crash. Note that using (lwip_)recvfrom
1889 like this is a bit slow and that using (lwip)getpeername is the
1890 good lwip way to do it (so, using recv is faster on tcp sockets).
1892 2008-03-12 Frédéric Bernon, Jonathan Larmour
1893 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1894 recv_raw() does not consume data", and the ping sample (with
1895 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1896 returned the IP payload, without the IP header).
1898 2008-03-04 Jonathan Larmour
1899 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1900 and/or warnings on some systems where mem_size_t and size_t differ.
1901 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1903 2008-03-04 Kieran Mansley (contributions by others)
1904 * Numerous small compiler error/warning fixes from contributions to
1905 mailing list after 1.3.0 release candidate made.
1907 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1908 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1910 2008-01-15 Kieran Mansley
1911 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1912 prevented from sending by a small send window, not just a zero
1915 2008-01-09 Jonathan Larmour
1916 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1917 conflict with Linux system headers.
1919 2008-01-06 Jonathan Larmour
1920 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1921 address entirely on receiving a DHCPNAK, and restarting discovery.
1923 2007-12-21 Simon Goldschmidt
1924 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1925 is not protected" by using new macros for interlocked access to modify/test
1926 netconn->recv_avail.
1928 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1929 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1931 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1932 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1933 of silly window avoidance and prevent lwIP from shrinking the window)
1935 2007-12-04 Simon Goldschmidt
1936 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1937 data packet was lost): add assert that all segment lists are empty in
1938 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1939 state from LAST_ACK in tcp_process
1941 2007-12-02 Simon Goldschmidt
1942 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1943 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1944 has to be set to 0 in lwipopts.h
1946 2007-12-02 Simon Goldschmidt
1947 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1948 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1949 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1950 This is a fix for thread-safety and allocates all items needed for a netconn
1951 when the netconn is created.
1953 2007-11-30 Simon Goldschmidt
1954 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1955 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1956 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1957 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1959 2007-11-27 Simon Goldschmidt
1960 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1961 letting ip_route only use netifs that are up.
1963 2007-11-27 Simon Goldschmidt
1964 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1965 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1966 sockets block most operations once they have seen a fatal error.
1968 2007-11-27 Simon Goldschmidt
1969 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1970 netif to send as an argument (to be able to send on netifs that are down).
1972 2007-11-26 Simon Goldschmidt
1973 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1976 2007-11-21 Simon Goldschmidt
1977 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1978 Fixed the nagle algorithm; nagle now also works for all raw API applications
1979 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1981 2007-11-12 Frédéric Bernon
1982 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1983 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1984 context in do_getaddr.
1986 2007-11-10 Simon Goldschmidt
1987 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1988 happen any time). Now the packet simply isn't enqueued when out of memory.
1990 2007-11-01 Simon Goldschmidt
1991 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1992 TCP_MSS if that is smaller) as long as no MSS option is received from the
1995 2007-11-01 Simon Goldschmidt
1996 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1997 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1998 sending our configured TCP_MSS instead of the one received).
2000 2007-11-01 Simon Goldschmidt
2001 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2002 calculated based on the configured TCP_MSS, not on the MSS option received
2005 2007-10-09 Simon Goldschmidt
2006 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2007 short and also was generated wrong if checksum coverage != tot_len;
2008 receive: checksum was calculated wrong if checksum coverage != tot_len
2010 2007-10-08 Simon Goldschmidt
2011 * mem.c: lfree was not updated in mem_realloc!
2013 2007-10-07 Frédéric Bernon
2014 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2015 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2016 this change cause an API breakage for netconn_addr, since a parameter
2017 type change. Any compiler should cause an error without any changes in
2018 yours netconn_peer calls (so, it can't be a "silent change"). It also
2019 reduce a little bit the footprint for socket layer (lwip_getpeername &
2020 lwip_getsockname use now a common lwip_getaddrname function since
2021 netconn_peer & netconn_addr have the same parameters).
2023 2007-09-20 Simon Goldschmidt
2024 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2025 by checking tcp_tw_pcbs also
2027 2007-09-19 Simon Goldschmidt
2028 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2030 2007-09-15 Mike Kleshov
2031 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2033 2007-09-06 Frédéric Bernon
2034 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2035 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2036 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2037 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2039 2007-08-30 Frédéric Bernon
2040 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2041 and fix some coding style.
2043 2007-08-28 Frédéric Bernon
2044 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2045 kind of packets. These packets are considered like Ethernet packets (payload
2046 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2047 are considered like IP packets (payload pointing to iphdr).
2049 2007-08-27 Frédéric Bernon
2050 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2051 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2052 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2054 2007-08-24 Kieran Mansley
2055 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2056 compiler (Paradigm C++)
2058 2007-08-09 Frédéric Bernon, Bill Florac
2059 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2060 Introduce IGMP_STATS to centralize statistics management.
2062 2007-08-09 Frédéric Bernon, Bill Florac
2063 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2064 packet on a udp pcb binded on an netif's IP address, and not on "any".
2066 2007-08-09 Frédéric Bernon, Bill Florac
2067 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2068 This is mainly on using lookup/lookfor, and some coding styles...
2070 2007-07-26 Frédéric Bernon (and "thedoctor")
2071 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2073 2007-07-25 Simon Goldschmidt
2074 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2075 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2076 (tcp_output is called again later from tcp timers).
2078 2007-07-25 Simon Goldschmidt
2079 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2080 copy_from_pbuf, which illegally modified the given pbuf.
2082 2007-07-25 Simon Goldschmidt
2083 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2084 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2086 2007-07-24 Simon Goldschmidt
2087 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2088 correct state (must be CLOSED).
2090 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2091 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2092 allocation. It now returns NULL.
2094 2007-07-13 Frédéric Bernon
2095 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2098 2007-07-13 Frédéric Bernon
2099 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2100 because current code doesn't follow rawapi.txt documentation.
2102 2007-07-13 Kieran Mansley
2103 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2104 out of sequence processing of received packets
2106 2007-07-03 Simon Goldschmidt
2107 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2108 assumption is made that this pbuf is in one piece (i.e. not chained). These
2109 assumptions clash with the possibility of converting to fully pool-based
2110 pbuf implementations, where PBUF_RAM pbufs might be chained.
2112 2007-07-03 Simon Goldschmidt
2113 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2114 when closing tcp netconns: removed conn->sem, less context switches when
2115 closing, both netconn_close and netconn_delete should safely close tcp
2118 2007-07-02 Simon Goldschmidt
2119 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2120 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2121 to cache ARP table indices with each pcb instead of single-entry cache for
2124 2007-07-02 Simon Goldschmidt
2125 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2126 warnings when assigning to smaller types.
2128 2007-06-28 Simon Goldschmidt
2129 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2131 2007-06-28 Simon Goldschmidt
2132 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2133 a segment contained chained pbufs)
2135 2007-06-28 Frédéric Bernon
2136 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2137 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2138 possible to define this macro in your own lwipopts.h to always use C library's
2139 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2141 2007-06-28 Frédéric Bernon
2142 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2143 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2144 in api_lib/api_msg (use pointers and not type with table, etc...)
2146 2007-06-26 Simon Goldschmidt
2147 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2149 2007-06-25 Simon Goldschmidt
2150 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2151 for udp packets with no matching pcb.
2153 2007-06-25 Simon Goldschmidt
2154 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2155 could get udp input packets if the remote side matched.
2157 2007-06-13 Simon Goldschmidt
2158 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2159 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2161 2007-06-13 Simon Goldschmidt
2162 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2163 -> netconn_new_..() does not allocate a new connection for unsupported
2166 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2167 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2168 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2170 2007-06-13 Frédéric Bernon, Matthias Weisser
2171 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2172 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2173 some macro names collision with some OS macros.
2175 2007-06-11 Simon Goldschmidt
2176 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2177 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2178 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2181 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2182 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2183 where TCP flags wasn't initialized in tcp_keepalive.
2185 2007-06-03 Simon Goldschmidt
2186 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2187 registered, p->payload was modified without modifying p->len if sending
2188 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2190 2007-06-03 Simon Goldschmidt
2191 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2192 re-used the input pbuf even if that didn't have enough space to include the
2193 link headers. Now the space is tested and a new pbuf is allocated for the
2194 echo response packet if the echo request pbuf isn't big enough.
2196 2007-06-01 Simon Goldschmidt
2197 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2199 2007-05-23 Frédéric Bernon
2200 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2201 allocated by do_listen if success) and netconn_accept errors handling. In
2202 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2203 by ASSERT, except for netconn_delete.
2205 2007-05-23 Frédéric Bernon
2206 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2207 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2208 directly close the recvmbox).
2210 2007-05-22 Simon Goldschmidt
2211 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2212 bound but unconnected (and non-listening) tcp_pcbs.
2214 2007-05-22 Frédéric Bernon
2215 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2216 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2217 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2218 like "sys_timeout" in their application threads.
2220 2007-05-22 Frédéric Bernon
2221 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2222 which parameters are used by which do_xxx function, and to avoid "misusing"
2223 parameters (patch #5938).
2225 2007-05-22 Simon Goldschmidt
2226 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2227 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2228 is only 8 bits wide. This affects the api, as there, the protocol was
2231 2007-05-18 Simon Goldschmidt
2232 * memp.c: addition to patch #5913: smaller pointer was returned but
2233 memp_memory was the same size -> did not save memory.
2235 2007-05-16 Simon Goldschmidt
2236 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2239 2007-05-16 Simon Goldschmidt
2240 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2241 as the one of the netif used for sending to prevent sending from old
2242 addresses after a netif address gets changed (partly fixes bug #3168).
2244 2007-05-16 Frédéric Bernon
2245 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2246 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2247 tcpip_init) because we have to be sure that network interfaces are already
2248 added (mac filter is updated only in igmp_init for the moment).
2250 2007-05-16 Simon Goldschmidt
2251 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2252 into sys_arch_sem_wait calls to prevent timers from running while waiting
2253 for the heap. This fixes bug #19167.
2255 2007-05-13 Simon Goldschmidt
2256 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2257 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2260 2007-05-07 Simon Goldschmidt
2261 * mem.c: Another attempt to fix bug #17922.
2263 2007-05-04 Simon Goldschmidt
2264 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2265 implementation so that it can be reused (don't allocate the target
2266 pbuf inside pbuf_copy()).
2268 2007-05-04 Simon Goldschmidt
2269 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2270 to save a little RAM (next pointer of memp is not used while not in pool).
2273 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2276 2007-04-23 Simon Goldschmidt
2277 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2278 in NULL reference for incoming TCP packets". Loopif has to be configured
2279 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2280 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2281 putting packets on a list that is fed to the stack by calling loopif_poll()
2282 (single-thread / NO_SYS / polling environment where e.g.
2283 netif->input() = ip_input).
2285 2007-04-17 Jonathan Larmour
2286 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2287 the difference between two u16_t's.
2288 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2289 MEMP_NUM_NETCONN in sockets.c right now.
2291 2007-04-12 Jonathan Larmour
2292 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2294 2007-04-12 Kieran Mansley
2295 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2296 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2298 2007-04-11 Simon Goldschmidt
2299 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2300 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2301 pbuf.c: removed functions no needed any more (by etharp).
2303 2007-04-11 Kieran Mansley
2304 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2305 "Constant is long" warnings with 16bit compilers. Contributed by
2306 avatar@mmlab.cse.yzu.edu.tw
2308 2007-04-05 Frédéric Bernon, Jonathan Larmour
2309 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2310 the mailbox is active". Now, the post is only done during a connect, and do_send,
2311 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2313 2007-04-03 Frédéric Bernon
2314 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2315 packets. See patch #5834.
2317 2007-03-30 Frédéric Bernon
2318 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2319 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2321 2007-03-30 Frédéric Bernon
2322 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2323 others environment defines (these were too "generic").
2325 2007-03-28 Frédéric Bernon
2326 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2327 result and can cause a crash. lwip_send now check netbuf_ref result.
2329 2007-03-28 Simon Goldschmidt
2330 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2331 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2332 defined. This is the way it should have been already (looking at
2335 2007-03-28 Kieran Mansley
2336 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2337 IP and TCP headers *and* physical link headers
2339 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2340 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2341 to send some garbage. It is not a definitive solution, but the patch does solve
2342 the problem for most cases.
2344 2007-03-22 Frédéric Bernon
2345 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2347 2007-03-22 Frédéric Bernon
2348 * api_lib.c: somes resources couldn't be freed if there was errors during
2349 netconn_new_with_proto_and_callback.
2351 2007-03-22 Frédéric Bernon
2352 * ethernetif.c: update netif->input calls to check return value. In older ports,
2353 it's a good idea to upgrade them, even if before, there could be another problem
2354 (access to an uninitialized mailbox).
2356 2007-03-21 Simon Goldschmidt
2357 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2358 by casting to unsigned).
2360 2007-03-21 Frédéric Bernon
2361 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2362 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2363 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2364 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2365 faster and more reliable communication between api_lib and tcpip.
2367 2007-03-21 Frédéric Bernon
2368 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2370 2007-03-21 Frédéric Bernon
2371 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2373 2007-03-21 Kieran Mansley
2374 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2377 2007-03-21 Kieran Mansley
2378 * Fix all uses of pbuf_header to check the return value. In some
2379 cases just assert if it fails as I'm not sure how to fix them, but
2380 this is no worse than before when they would carry on regardless
2383 2007-03-21 Kieran Mansley
2384 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2385 comment out missing header include in icmp.c
2387 2007-03-20 Frédéric Bernon
2388 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2389 synchronized with memp.h.
2391 2007-03-20 Frédéric Bernon
2392 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2393 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2394 network interfaces. Also fix a compiler warning.
2396 2007-03-20 Kieran Mansley
2397 * udp.c: Only try and use pbuf_header() to make space for headers if
2398 not a ROM or REF pbuf.
2400 2007-03-19 Frédéric Bernon
2401 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2404 2007-03-19 Frédéric Bernon
2405 * Remove unimplemented "memp_realloc" function from memp.h.
2407 2007-03-11 Simon Goldschmidt
2408 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2411 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2412 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2413 (missing `const' qualifier in socket functions), to get more compatible to
2414 standard POSIX sockets.
2416 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2417 * sockets.c: Add asserts inside bind, connect and sendto to check input
2418 parameters. Remove excessive set_errno() calls after get_socket(), because
2419 errno is set inside of get_socket(). Move last sock_set_errno() inside
2422 2007-03-09 Simon Goldschmidt
2423 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2424 was allocated too small.
2426 2007-03-06 Simon Goldschmidt
2427 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2428 the stack from concurrent access.
2430 2007-03-06 Frédéric Bernon, Dmitry Potapov
2431 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2432 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2434 2007-03-06 Simon Goldschmidt
2435 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2436 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2438 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2439 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2440 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2441 Allow to do ARP processing for incoming packets inside tcpip_thread
2442 (protecting ARP layer against concurrent access). You can also disable
2443 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2444 Older ports have to use tcpip_ethinput.
2446 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2447 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2448 from pointer target type"
2450 2007-03-05 Frédéric Bernon
2451 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2452 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2454 2007-03-04 Frédéric Bernon
2455 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2458 2007-03-04 Frédéric Bernon
2459 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2461 The api_msg struct stay on the stack (not moved to netconn struct).
2463 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2464 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2465 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2466 Also fixed cast warning in pbuf_alloc()
2468 2007-03-04 Simon Goldschmidt
2469 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2470 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2472 2007-03-03 Frédéric Bernon
2473 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2474 It is static, and never used in udp.c except udp_init().
2476 2007-03-02 Simon Goldschmidt
2477 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2478 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2479 initialized before tcpip_thread is running (e.g. before OS is started)
2481 2007-03-02 Frédéric Bernon
2482 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2485 2007-02-28 Kieran Mansley
2486 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2487 outside the region of the pbuf by pbuf_header()
2489 2007-02-28 Kieran Mansley
2490 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2491 when supplied timeout is also non-zero
2495 2006-12-05 Leon Woestenberg
2496 * CHANGELOG: Mention STABLE-1.2.0 release.
2500 2006-12-01 Christiaan Simons
2501 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2502 Note this is a workaround. Currently I have no other options left.
2504 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2505 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2506 to include/lwip/opt.h.
2507 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2508 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2509 * opt.h: Add above new options.
2511 2006-08-18 Christiaan Simons
2512 * tcp_{in,out}.c: added SNMP counters.
2513 * ipv4/ip.c: added SNMP counters.
2514 * ipv4/ip_frag.c: added SNMP counters.
2516 2006-08-08 Christiaan Simons
2517 * etharp.{c,h}: added etharp_find_addr() to read
2518 (stable) ethernet/IP address pair from ARP table
2520 2006-07-14 Christiaan Simons
2521 * mib_structs.c: added
2522 * include/lwip/snmp_structs.h: added
2523 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2525 2006-07-06 Christiaan Simons
2526 * snmp/asn1_{enc,dec}.c added
2528 * snmp/msg_{in,out}.c added
2529 * include/lwip/snmp_asn1.h added
2530 * include/lwip/snmp_msg.h added
2531 * doc/snmp_agent.txt added
2533 2006-03-29 Christiaan Simons
2534 * inet.c, inet.h: Added platform byteswap support.
2535 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2536 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2540 2006-11-30 Christiaan Simons
2541 * dhcp.c: Fixed false triggers of request_timeout.
2543 2006-11-28 Christiaan Simons
2544 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2546 2006-10-11 Christiaan Simons
2547 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2548 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2549 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2550 identifier from 170 to 136 (bug #17574).
2552 2006-10-10 Christiaan Simons
2553 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2555 2006-08-17 Christiaan Simons
2556 * udp.c: Fixed bug #17200, added check for broadcast
2557 destinations for PCBs bound to a unicast address.
2559 2006-08-07 Christiaan Simons
2560 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2562 2006-06-27 Christiaan Simons
2563 * api_msg.c: Applied patch for cold case (bug #11135).
2564 In accept_function() ensure newconn->callback is always initialized.
2566 2006-06-15 Christiaan Simons
2567 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2568 facilitate printing of mem_size_t and u16_t statistics.
2570 2006-06-14 Christiaan Simons
2571 * api_msg.c: Applied patch #5146 to handle allocation failures
2572 in accept() by Kevin Lawson.
2574 2006-05-26 Christiaan Simons
2575 * api_lib.c: Removed conn->sem creation and destruction
2576 from netconn_write() and added sys_sem_new to netconn_new_*.
2580 2006-03-03 Christiaan Simons
2581 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2582 access and added pbuf_alloc() return value checks.
2584 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2585 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2586 now handled by the checksum routine properly.
2588 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2589 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2590 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2592 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2593 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2594 submitted by Mitrani Hiroshi.
2596 2005-12-15 Christiaan Simons
2597 * inet.c: Disabled the added summing routine to preserve code space.
2599 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2600 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2601 Added Curt McDowell's optimized checksumming routine for future
2602 inclusion. Need to create test case for unaliged, aligned, odd,
2603 even length combination of cases on various endianess machines.
2605 2005-12-09 Christiaan Simons
2606 * inet.c: Rewrote standard checksum routine in proper portable C.
2608 2005-11-25 Christiaan Simons
2609 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2610 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2611 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2613 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2614 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2615 routine by Peter Jolasson.
2616 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2618 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2619 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2620 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2622 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2623 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2625 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2626 * udp.c: UDP pcb->recv() was called even when it was NULL.
2630 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2631 * etharp.*: Disabled multiple packets on the ARP queue.
2632 This clashes with TCP queueing.
2634 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2636 Halved the ARP period, doubled the period counts.
2637 ETHARP_MAX_PENDING now should be at least 2. This prevents
2638 the counter from reaching 0 right away (which would allow
2639 too little time for ARP responses to be received).
2641 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2642 * dhcp.c: Decline messages were not multicast but unicast.
2643 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2644 Do not try hard to insert arbitrary packet's source address,
2645 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2646 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2647 querying an address will see it appear in the cache (DHCP could
2648 suffer from this when a server invalidly gave an in-use address.)
2649 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2650 comparing network addresses (identifiers), not the network masks
2652 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2653 IP address actually belongs to the network of the given interface.
2655 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2656 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2660 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2661 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2662 even if one is already pending, if the rcv_wnd is above a threshold
2663 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2664 delayed ACK in order to open the window if the stack is only receiving data.
2666 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2667 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2669 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2670 * etharp.c: Make sure the first pbuf queued on an ARP entry
2671 is properly ref counted.
2673 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2674 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2675 warnings about comparison.
2676 * pbuf.c: Stopped compiler complaining of empty if statement
2677 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2678 * tcp.c: Stopped compiler complaining of empty if statement
2679 when LWIP_DEBUGF() empty.
2680 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2681 * inet.c: Added a couple of casts to quiet the compiler.
2682 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2684 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2685 * inet.c: Made data types consistent in inet_ntoa().
2686 Added casts for return values of checksum routines, to pacify compiler.
2687 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2688 Small corrections to some debugging statements, to pacify compiler.
2690 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2691 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2692 * ethernetif.c Updated low_level_output() to match prototype for
2693 netif->linkoutput and changed low_level_input() similarly for consistency.
2694 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2695 of raw_recv() in raw.h and so avoid compiler error.
2696 * sockets.c: Added trivial (int) cast to keep compiler happier.
2697 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2703 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2704 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2705 your cc.h file defines this either 1 or 0. If non-defined,
2707 * .c: Added <string.h> and <errno.h> includes where used.
2708 * etharp.c: Made some array indices unsigned.
2710 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2711 * netif.*: Added netif_set_up()/down().
2712 * dhcp.c: Changes to restart program flow.
2714 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2715 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2716 single-pass lookup for different candidates. Should exploit locality.
2718 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2719 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2720 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2721 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2722 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2726 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2727 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2728 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2729 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2730 is to prefix the 14-bit Ethernet headers with two padding bytes.
2732 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2733 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2734 * etharp.c: Fixed the case where the packet that initiates the ARP request
2735 is not queued, and gets lost. Fixed the case where the packets destination
2736 address is already known; we now always queue the packet and perform an ARP
2743 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2744 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2745 * Fixed two possible NULL references in rare cases.
2751 * Fixed DHCP which did not include the IP address in DECLINE messages.
2755 * etharp.c has been hauled over a bit.
2761 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2762 * Packets sent from ARP queue had invalid source hardware address.
2766 * Pass-by ARP requests do now update the cache.
2770 * No longer dependent on ctype.h.
2771 * New socket options.
2772 * Raw IP pcb support.
2778 * Some debug formatters and casts fixed.
2779 * Numereous fixes in PPP.
2783 * DEBUGF now is LWIP_DEBUGF
2784 * pbuf_dechain() has been re-enabled.
2785 * Mentioned the changed use of CVS branches in README.
2791 * Fixed pool pbuf memory leak in pbuf_alloc().
2792 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2793 Reported by Savin Zlobec.
2795 * PBUF_POOL chains had their tot_len field not set for non-first
2796 pbufs. Fixed in pbuf_alloc().
2800 * Added PPP stack contributed by Marc Boucher
2804 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2806 * ARP queueuing now queues the latest packet instead of the first.
2807 This is the RFC recommended behaviour, but can be overridden in
2814 * TCP has been fixed to deal with the new use of the pbuf->ref
2817 * DHCP dhcp_inform() crash bug fixed.
2821 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2822 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2823 Implemented by David Haas.
2829 * The packet buffer implementation has been enhanced to support
2830 zero-copy and copy-on-demand for packet buffers which have their
2831 payloads in application-managed memory.
2832 Implemented by David Haas.
2834 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2835 if an outgoing packet can be directly sent on the link, or perform
2836 a copy-on-demand when necessary.
2838 The application can safely assume the packet is sent, and the RAM
2839 is available to the application directly after calling udp_send()
2840 or similar function.
2844 * ARP_QUEUEING should now correctly work for all cases, including
2846 Implemented by Leon Woestenberg.
2850 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2851 to a '0.0.0.0' IP address.
2853 * The packet buffer implementation is changed. The pbuf->ref counter
2854 meaning has changed, and several pbuf functions have been
2855 adapted accordingly.
2857 * netif drivers have to be changed to set the hardware address length field
2858 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2859 See the contrib/ports/c16x cs8900 driver as a driver example.
2861 * netif's have a dhcp field that must be initialized to NULL by the driver.
2862 See the contrib/ports/c16x cs8900 driver as a driver example.
2864 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2865 logged in CVS but have not been explained here.
2867 (0.5.3) Changes since version 0.5.2
2871 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2872 threads because it wasn't protected by semaphores.
2876 * struct ip_addr now packed.
2878 * The name of the time variable in arp.c has been changed to ctime
2879 to avoid conflicts with the time() function.
2881 (0.5.2) Changes since version 0.5.1
2885 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2889 * A bug in tcp_parseopt() could cause the stack to hang because of a
2890 malformed TCP option.
2892 * The address of new connections in the accept() function in the BSD
2893 socket library was not handled correctly.
2895 * pbuf_dechain() did not update the ->tot_len field of the tail.
2897 * Aborted TCP connections were not handled correctly in all
2902 * All protocol header structs are now packed.
2904 * The ->len field in the tcp_seg structure now counts the actual
2905 amount of data, and does not add one for SYN and FIN segments.
2907 (0.5.1) Changes since version 0.5.0
2911 * Possible to run as a user process under Linux.
2913 * Preliminary support for cross platform packed structs.
2915 * ARP timer now implemented.
2919 * TCP output queue length was badly initialized when opening
2922 * TCP delayed ACKs were not sent correctly.
2924 * Explicit initialization of BSS segment variables.
2926 * read() in BSD socket library could drop data.
2928 * Problems with memory alignment.
2930 * Situations when all TCP buffers were used could lead to
2933 * TCP MSS option wasn't parsed correctly.
2935 * Problems with UDP checksum calculation.
2937 * IP multicast address tests had endianess problems.
2939 * ARP requests had wrong destination hardware address.
2943 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2945 * A ->linkoutput() member was added to struct netif.
2947 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2949 * ntoh* macros are now null definitions for big endian CPUs.
2951 (0.5.0) Changes since version 0.4.2
2955 * Redesigned operating system emulation layer to make porting easier.
2957 * Better control over TCP output buffers.
2959 * Documenation added.
2963 * Locking issues in buffer management.
2965 * Bugfixes in the sequential API.
2967 * IP forwarding could cause memory leakage. This has been fixed.
2971 * Directory structure somewhat changed; the core/ tree has been
2974 (0.4.2) Changes since version 0.4.1
2978 * Experimental ARP implementation added.
2980 * Skeleton Ethernet driver added.
2982 * Experimental BSD socket API library added.
2986 * In very intense situations, memory leakage could occur. This has
2991 * Variables named "data" and "code" have been renamed in order to
2992 avoid name conflicts in certain compilers.
2994 * Variable++ have in appliciable cases been translated to ++variable
2995 since some compilers generate better code in the latter case.
2997 (0.4.1) Changes since version 0.4
3001 * TCP: Connection attempts time out earlier than data
3002 transmissions. Nagle algorithm implemented. Push flag set on the
3003 last segment in a burst.
3005 * UDP: experimental support for UDP-Lite extensions.
3009 * TCP: out of order segments were in some cases handled incorrectly,
3010 and this has now been fixed. Delayed acknowledgements was broken
3011 in 0.4, has now been fixed. Binding to an address that is in use
3012 now results in an error. Reset connections sometimes hung an
3013 application; this has been fixed.
3015 * Checksum calculation sometimes failed for chained pbufs with odd
3016 lengths. This has been fixed.
3018 * API: a lot of bug fixes in the API. The UDP API has been improved
3019 and tested. Error reporting and handling has been
3020 improved. Logical flaws and race conditions for incoming TCP
3021 connections has been found and removed.
3023 * Memory manager: alignment issues. Reallocating memory sometimes
3024 failed, this has been fixed.
3026 * Generic library: bcopy was flawed and has been fixed.
3030 * API: all datatypes has been changed from generic ones such as
3031 ints, to specified ones such as u16_t. Functions that return
3032 errors now have the correct type (err_t).
3034 * General: A lot of code cleaned up and debugging code removed. Many
3035 portability issues have been fixed.
3037 * The license was changed; the advertising clause was removed.
3041 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3042 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3045 (0.4) Changes since version 0.3.1
3047 * Memory management has been radically changed; instead of
3048 allocating memory from a shared heap, memory for objects that are
3049 rapidly allocated and deallocated is now kept in pools. Allocation
3050 and deallocation from those memory pools is very fast. The shared
3051 heap is still present but is used less frequently.
3053 * The memory, memory pool, and packet buffer subsystems now support
3054 4-, 2-, or 1-byte alignment.
3056 * "Out of memory" situations are handled in a more robust way.
3058 * Stack usage has been reduced.
3060 * Easier configuration of lwIP parameters such as memory usage,
3061 TTLs, statistics gathering, etc. All configuration parameters are
3062 now kept in a single header file "lwipopts.h".
3064 * The directory structure has been changed slightly so that all
3065 architecture specific files are kept under the src/arch
3068 * Error propagation has been improved, both in the protocol modules
3071 * The code for the RTXC architecture has been implemented, tested
3074 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3075 the Internet checksum modules.
3077 * Bugs related to porting between a 32-bit and a 16-bit architecture
3078 have been found and corrected.
3080 * The license has been changed slightly to conform more with the
3081 original BSD license, including the advertisement clause.
3083 (0.3.1) Changes since version 0.3
3085 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3086 RAM never returned the RAM when the pbuf was deallocated.
3088 * TCP congestion control, window updates and retransmissions did not
3089 work correctly. This has now been fixed.
3091 * Bugfixes in the API.
3093 (0.3) Changes since version 0.2
3095 * New and improved directory structure. All include files are now
3096 kept in a dedicated include/ directory.
3098 * The API now has proper error handling. A new function,
3099 netconn_err(), now returns an error code for the connection in
3102 * Improvements in the memory management subsystem. The system now
3103 keeps a pointer to the lowest free memory block. A new function,
3104 mem_malloc2() tries to allocate memory once, and if it fails tries
3105 to free some memory and retry the allocation.
3107 * Much testing has been done with limited memory
3108 configurations. lwIP now does a better job when overloaded.
3110 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3112 * Many bugfixes in the TCP code:
3114 - Fixed a bug in tcp_close().
3116 - The TCP receive window was incorrectly closed when out of
3117 sequence segments was received. This has been fixed.
3119 - Connections are now timed-out of the FIN-WAIT-2 state.
3121 - The initial congestion window could in some cases be too
3122 large. This has been fixed.
3124 - The retransmission queue could in some cases be screwed up. This
3127 - TCP RST flag now handled correctly.
3129 - Out of sequence data was in some cases never delivered to the
3130 application. This has been fixed.
3132 - Retransmitted segments now contain the correct acknowledgment
3133 number and advertised window.
3135 - TCP retransmission timeout backoffs are not correctly computed
3136 (ala BSD). After a number of retransmissions, TCP now gives up
3139 * TCP connections now are kept on three lists, one for active
3140 connections, one for listening connections, and one for
3141 connections that are in TIME-WAIT. This greatly speeds up the fast
3142 timeout processing for sending delayed ACKs.
3144 * TCP now provides proper feedback to the application when a
3145 connection has been successfully set up.
3147 * More comments have been added to the code. The code has also been
3148 somewhat cleaned up.
3150 (0.2) Initial public release.