5 * [Enter new changes just after this line - do not remove this line]
9 2012-01-16: Simon Goldschmidt
10 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
12 2011-12-17: Simon Goldschmidt
13 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
16 2011-09-27: Simon Goldschmidt
17 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
18 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
20 2011-09-21: Simon Goldschmidt
21 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
22 send (TCP only, bug #33820)
24 2011-09-21: Simon Goldschmidt
25 * init.c: Converted runtime-sanity-checks into compile-time checks that can
26 be disabled (since runtime checks can often not be seen on embedded targets)
28 2011-09-11: Simon Goldschmidt
29 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
30 to get a clear separation of which functions an application or port may use
33 2011-09-11: Simon Goldschmidt
34 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
35 initial local TCP/UDP ports (so that different port ranges are used after
36 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
38 2011-09-03: Simon Goldschmidt
39 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
41 2011-08-24: Simon Goldschmidt
42 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
44 2011-07-26: Simon Goldschmidt
45 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
46 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
48 2011-07-21: Simon Goldschmidt (patch by hanhui)
49 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
50 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
51 Also added code to allow ip_forward() to forward non-broadcast packets to
52 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
54 2011-07-21: Simon Goldschmidt
55 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
56 ioctl/FIONREAD return the size of the next pending datagram.
58 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
59 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
62 2011-05-25: Simon Goldschmidt
63 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
64 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
65 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
66 code so that the code is more readable.
68 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
69 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
70 Ivan! (this is work in progress: we're just post release anyway :-)
72 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
73 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
79 2012-01-21: Simon Goldschmidt
80 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
82 2012-01-20: Simon Goldschmidt
83 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
85 2012-01-20: Simon Goldschmidt
86 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
88 2011-11-25: Simon Goldschmidt
89 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
90 tcp_active_pcbs in some cases
92 2011-11-23: Simon Goldschmidt
93 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
96 2011-11-22: Simon Goldschmidt
97 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
100 2011-10-28: Simon Goldschmidt
101 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
103 2011-10-23: Simon Goldschmidt
104 * mem.c: fixed bug #34429: possible memory corruption with
105 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
107 2011-10-18: Simon Goldschmidt
108 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
111 2011-10-18: Simon Goldschmidt
112 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
113 windows (bug #34176 select after non-blocking send times out)
115 2011-10-18: Simon Goldschmidt
116 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
117 consider netif->mtu, causes slow network
119 2011-10-18: Simon Goldschmidt
120 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
122 2011-10-18: Simon Goldschmidt
123 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
125 2011-10-17: Simon Goldschmidt
126 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
128 2011-10-13: Simon Goldschmidt
129 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
130 zero window is received) by starting the persist timer when a zero window is
131 received, not when we have more data queued for sending than fits into the
134 2011-10-13: Simon Goldschmidt
135 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
137 2011-10-13: Simon Goldschmidt
138 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
139 used and not all protocols are enabled
141 2011-10-12: Simon Goldschmidt
142 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
144 2011-10-09: Simon Goldschmidt
145 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
146 byte value when pcb->unacked != NULL
148 2011-10-09: Simon Goldschmidt
149 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
151 2011-09-27: Simon Goldschmidt
152 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
154 2011-09-27: Simon Goldschmidt
155 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
157 2011-09-27: Simon Goldschmidt
158 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
160 2011-09-24: Simon Goldschmidt
161 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
163 2011-09-23: Simon Goldschmidt
164 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
165 the last packet including FIN can lose data
167 2011-09-22: Simon Goldschmidt
168 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
171 2011-09-21: Simon Goldschmidt
172 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
175 2011-09-20: Simon Goldschmidt
176 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
178 2011-09-11: Simon Goldschmidt
179 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
182 2011-09-09: Simon Goldschmidt
183 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
186 2011-09-03: Simon Goldschmidt
187 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
188 is aggregated and sent to application
190 2011-09-01: Simon Goldschmidt
191 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
194 2011-09-01: Simon Goldschmidt
195 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
197 2011-08-24: Simon Goldschmidt
198 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
200 2011-08-24: Simon Goldschmidt
201 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
202 accept() on UDP connections
204 2011-08-24: Simon Goldschmidt
205 * sockets.h: fixed bug #34057 socklen_t should be a typedef
207 2011-08-24: Simon Goldschmidt
208 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
210 2011-08-24: Simon Goldschmidt
211 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
213 2011-08-24: Simon Goldschmidt
214 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
216 2011-08-22: Simon Goldschmidt
217 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
218 merely prevents nagle from not transmitting fast after closing.)
220 2011-07-22: Simon Goldschmidt
221 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
222 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
223 lwip_send() sends as much as possible for non-blocking sockets
225 2011-07-22: Simon Goldschmidt
226 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
227 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
228 at regular intervals from main level.
230 2011-07-21: Simon Goldschmidt
231 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
232 sending an ARP request when an ARP entry is used in the last minute before
235 2011-07-04: Simon Goldschmidt
236 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
238 2011-06-26: Simon Goldschmidt
239 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
240 updating its documentation only.
242 2011-06-26: Simon Goldschmidt
243 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
246 2011-06-26: Simon Goldschmidt
247 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
255 2011-03-27: Simon Goldschmidt
256 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
257 calculate it in tcp_zero_window_probe (the only place where it was used).
259 2010-11-21: Simon Goldschmidt
260 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
263 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
264 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
265 IP_MULTICAST_LOOP at socket- and raw-API level.
267 2010-06-16: Simon Goldschmidt
268 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
269 link-layer-addressed UDP traffic to be received while a netif is down (just
270 like DHCP during configuration)
272 2010-05-22: Simon Goldschmidt
273 * many many files: bug #27352: removed packing from ip_addr_t, the packed
274 version is now only used in protocol headers. Added global storage for
275 current src/dest IP address while in input functions.
277 2010-05-16: Simon Goldschmidt
278 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
279 calculation (and use them throughout the stack where applicable)
281 2010-05-16: Simon Goldschmidt
282 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
283 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
285 2010-05-16: Simon Goldschmidt
286 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
287 MEMP pool instead of the heap
289 2010-05-13: Simon Goldschmidt
290 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
291 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
292 packets to more than one pcb.
294 2010-05-02: Simon Goldschmidt
295 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
296 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
298 2010-04-30: Simon Goldschmidt
299 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
300 take a precalculated checksum, added pbuf_fill_chksum() to copy data
301 into a pbuf and at the same time calculating the checksum for that data
303 2010-04-29: Simon Goldschmidt
304 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
305 2-byte-aligned IP addresses and MAC addresses
307 2010-04-28: Patch by Bill Auerbach
308 * ip.c: Inline generating IP checksum to save a function call
310 2010-04-14: Simon Goldschmidt
311 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
312 tcpip_thread processes messages or timeouts to implement a watchdog.
314 2010-03-28: Simon Goldschmidt
315 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
316 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
318 2010-03-27: Simon Goldschmidt
319 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
320 etharp_query to prevent unnecessary function calls (inspired by
323 2010-03-20: Simon Goldschmidt
324 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
325 since the linker cannot do this automatically to save space.
327 2010-03-20: Simon Goldschmidt
328 * opt.h, etharp.c/.h: Added support for static ARP table entries
330 2010-03-14: Simon Goldschmidt
331 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
332 when creating TCP segments, not when (re-)transmitting them.
334 2010-03-07: Simon Goldschmidt
335 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
336 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
337 This should speed up receiving data on sockets as the select code in
338 event_callback is only executed when select is waiting.
340 2010-03-06: Simon Goldschmidt
341 * tcp_out.c: task #7013 (Create option to have all packets delivered to
342 netif->output in one piece): Always copy to try to create single pbufs
345 2010-03-06: Simon Goldschmidt
346 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
347 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
348 for tcp netconns to receive pbufs, not netbufs; use that function
351 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
352 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
353 Work on tcp_enqueue: Don't waste memory when chaining segments,
354 added option TCP_OVERSIZE to prevent creating many small pbufs when
355 calling tcp_write with many small blocks of data. Instead, pbufs are
356 allocated larger than needed and the space is used for later calls to
359 2010-02-21: Simon Goldschmidt
360 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
363 2010-02-21: Simon Goldschmidt
364 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
365 implementation of tcp to make API usage cleare to application programmers
367 2010-02-14: Simon Goldschmidt/Stephane Lesage
368 * ip_addr.h: Improved some defines working on ip addresses, added faster
369 macro to copy addresses that cannot be NULL
371 2010-02-13: Simon Goldschmidt
372 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
373 blocking send operation)
375 2010-02-12: Simon Goldschmidt
376 * sockets.c/.h: Added a minimal version of posix fctl() to have a
377 standardised way to set O_NONBLOCK for nonblocking sockets.
379 2010-02-12: Simon Goldschmidt
380 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
381 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
382 and dhcp work with user-allocated structs instead of callin mem_malloc
384 2010-02-12: Simon Goldschmidt/Jeff Barber
385 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
386 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
388 2010-02-12: Simon Goldschmidt
389 * sys layer: task #10139 (Prefer statically allocated memory): converted
390 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
391 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
392 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
393 to let sys.h use binary semaphores instead of mutexes - as before)
395 2010-02-09: Simon Goldschmidt (Simon Kallweit)
396 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
397 (Restart system timeout handling)
399 2010-02-09: Simon Goldschmidt
400 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
401 netif.c) - loopif does not have to be created by the port any more,
402 just define LWIP_HAVE_LOOPIF to 1.
404 2010-02-08: Simon Goldschmidt
405 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
406 inet_ntoa_r/ipaddr_ntoa_r
408 2010-02-08: Simon Goldschmidt
409 * netif.h: Added netif_s/get_igmp_mac_filter() macros
411 2010-02-05: Simon Goldschmidt
412 * netif.h: Added function-like macros to get/set the hostname on a netif
414 2010-02-04: Simon Goldschmidt
415 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
416 make changing the actual implementation behind the typedef easier.
418 2010-02-01: Simon Goldschmidt
419 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
420 for allocating memory when getaddrinfo() is called.
422 2010-01-31: Simon Goldschmidt
423 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
424 them once instead of parsing for every option. This also removes
425 the need for mem_malloc from dhcp_recv and makes it possible to
426 correctly retrieve the BOOTP file.
428 2010-01-30: simon Goldschmidt
429 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
432 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
433 * api.h, api_msg.c, sockets.c: Added except set support in select
436 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
437 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
438 Add non-blocking support for connect (partly from patch #6860),
439 plus many cleanups in socket & netconn API.
441 2010-01-27: Simon Goldschmidt
442 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
443 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
445 2010-01-26: Simon Goldschmidt
446 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
448 2010-01-14: Simon Goldschmidt
449 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
450 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
452 2010-01-13: Simon Goldschmidt
453 * mem.c: The heap now may be moved to user-defined memory by defining
454 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
455 (patch #6966 and bug #26133)
457 2010-01-10: Simon Goldschmidt (Bill Auerbach)
458 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
461 2010-01-10: Simon Goldschmidt
462 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
463 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
465 2009-12-31: Simon Goldschmidt
466 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
467 added timers.c/.h: Separated timer implementation from semaphore/mbox
468 implementation, moved timer implementation to timers.c/.h, timers are
469 now only called from tcpip_thread or by explicitly checking them.
472 2009-12-27: Simon Goldschmidt
473 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
474 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
479 2011-04-20: Simon Goldschmidt
480 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
482 2011-04-13: Simon Goldschmidt
483 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
484 using ports in the IANA private/dynamic range (49152 through 65535).
486 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
487 * etharp.h/.c: Fixed broken VLAN support.
489 2011-03-27: Simon Goldschmidt
490 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
491 pcbs) by checking if the pcb was bound (local_port != 0).
493 2011-03-27: Simon Goldschmidt
494 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
496 2011-03-27: Simon Goldschmidt
497 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
498 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
500 2011-03-27: Simon Goldschmidt
501 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
502 is present never times out) by starting retransmission timer before checking
505 2011-03-22: Simon Goldschmidt
506 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
507 calling sio_read_abort() if the file descriptor is valid.
509 2011-03-14: Simon Goldschmidt
510 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
511 more than once can render a socket useless) since it mainly involves changing
512 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
514 2011-03-13: Simon Goldschmidt
515 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
516 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
517 use EALRADY instead of -1
519 2011-03-13: Simon Goldschmidt
520 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
521 connection has been aborted by err_tcp (since this is not a normal closing
524 2011-03-13: Simon Goldschmidt
525 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
526 with pcb->state != CLOSED
528 2011-02-17: Simon Goldschmidt
529 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
532 2011-02-17: Simon Goldschmidt
533 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
535 2011-01-24: Simon Goldschmidt
536 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
538 2010-12-02: Simon Goldschmidt
539 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
541 2010-11-23: Simon Goldschmidt
542 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
543 LWIP_SO_RCVBUF and ioctl/FIONREAD.
545 2010-11-23: Simon Goldschmidt
546 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
547 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
549 2010-11-23: Simon Goldschmidt
550 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
551 refusing 'refused_data' again.
553 2010-11-22: Simon Goldschmidt
554 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
555 after a successful nonblocking connection.
557 2010-11-22: Simon Goldschmidt
558 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
559 must be sent link-local
561 2010-11-22: Simon Goldschmidt
562 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
565 2010-11-20: Simon Goldschmidt
566 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
568 2010-11-20: Simon Goldschmidt
569 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
570 resemble other stacks.
572 2010-11-20: Simon Goldschmidt
573 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
574 no-copy TCP writes will never succeed.
576 2010-11-20: Simon Goldschmidt
577 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
578 not match documentation: return ERR_ARG instead of ERR_VAL if not
579 initialized or wrong argument.
581 2010-10-20: Simon Goldschmidt
582 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
584 2010-10-05: Simon Goldschmidt
585 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
586 replugging the network cable after an AutoIP address was assigned.
588 2010-08-10: Simon Goldschmidt
589 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
591 2010-08-03: Simon Goldschmidt
592 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
594 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
595 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
596 endian architectures)
598 2010-07-28: Simon Goldschmidt
599 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
602 2010-07-27: Simon Goldschmidt
603 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
604 harm but never did anything
606 2010-07-21: Simon Goldschmidt
607 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
610 2010-07-16: Kieran Mansley
611 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
613 2010-07-10: Simon Goldschmidt
614 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
616 2010-06-30: Simon Goldschmidt
617 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
620 2010-06-28: Kieran Mansley
621 * timers.c remove unportable printing of C function pointers
623 2010-06-24: Simon Goldschmidt
624 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
625 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
627 2010-06-24: Simon Goldschmidt
628 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
629 implemented shutdown at socket level.
631 2010-06-21: Simon Goldschmidt
632 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
633 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
634 custom pbufs that reference other (original) pbufs. Additionally set
635 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
637 2010-06-15: Simon Goldschmidt
638 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
640 2010-06-14: Simon Goldschmidt
641 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
643 2010-06-12: Simon Goldschmidt
644 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
647 2010-05-17: Simon Goldschmidt
648 * netdb.c: Correctly NULL-terminate h_addr_list
650 2010-05-16: Simon Goldschmidt
651 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
652 "symbol already defined" i.e. when linking to winsock
654 2010-05-05: Simon Goldschmidt
655 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
658 2010-04-21: Simon Goldschmidt
659 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
662 2010-03-28: Luca Ceresoli
663 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
665 2010-03-27: Luca Ceresoli
666 * mib2.c: patch #7130: remove meaningless const qualifiers
668 2010-03-26: Simon Goldschmidt
669 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
671 2010-03-26: Simon Goldschmidt
672 * various files: Fixed compiling with different options disabled (TCP/UDP),
673 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
675 2010-03-25: Simon Goldschmidt
676 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
678 2010-03-25: Simon Goldschmidt
679 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
680 overrunning our rcv_wnd in ooseq case.
682 2010-03-22: Simon Goldschmidt
683 * tcp.c: tcp_listen() did not copy the pcb's prio.
685 2010-03-19: Simon Goldschmidt
686 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
688 2010-03-14: Simon Goldschmidt
689 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
690 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
691 and basing PBUF_LINK_HLEN on it.
693 2010-03-08: Simon Goldschmidt
694 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
695 when assiging routable address): when checking incoming packets and
696 aborting existing connection on address change, filter out link-local
699 2010-03-06: Simon Goldschmidt
700 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
702 2010-03-06: Simon Goldschmidt
703 * ipv4/ip.c: Don't try to forward link-local addresses
705 2010-03-06: Simon Goldschmidt
706 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
709 2010-03-05: Simon Goldschmidt
710 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
713 2010-03-05: Simon Goldschmidt
714 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
715 into multiple calls to tcp_write.
717 2010-02-21: Simon Goldschmidt
718 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
719 the implementation of DNS_USES_STATIC_BUF==1)
721 2010-02-20: Simon Goldschmidt
722 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
723 close() vs. shutdown(). Now the application does not get any more
724 recv callbacks after calling tcp_close(). Added tcp_shutdown().
726 2010-02-19: Simon Goldschmidt
727 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
728 confusion with realloc()
730 2010-02-15: Simon Goldschmidt/Stephane Lesage
731 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
734 2010-02-14: Simon Goldschmidt
735 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
736 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
737 admin-status of a netif are up
739 2010-02-14: Simon Goldschmidt
740 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
741 reception and is not really necessary
743 2010-02-14: Simon Goldschmidt
744 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
745 request was directed as us (RFC 826, Packet Reception), otherwise
746 only update existing entries; internalized some functions
748 2010-02-14: Simon Goldschmidt
749 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
750 disabled on netif used for PPPoE) by adding a new netif flag
751 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
752 device but prevents usage of ARP (so that ethernet_input can be used
755 2010-02-12: Simon Goldschmidt
756 * netif.c: netif_set_link_up/down: only do something if the link state
759 2010-02-12: Simon Goldschmidt/Stephane Lesage
760 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
763 2010-02-12: Simon Goldschmidt
764 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
766 2010-02-09: Simon Goldschmidt
767 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
768 (recv() makes receive window update for data that wasn't received by
771 2010-02-09: Simon Goldschmidt/Stephane Lesage
772 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
773 or any netconn_recv() error)
775 2010-02-09: Simon Goldschmidt
776 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
778 2010-02-09: Simon Goldschmidt
779 * netif.c: For loopback packets, adjust the stats- and snmp-counters
780 for the loopback netif.
782 2010-02-08: Simon Goldschmidt
783 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
784 since they are not used anywhere else.
786 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
787 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
788 (patch from bug #28798)
790 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
791 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
792 another bug when LWIP_RAND() returns zero.
794 2010-02-04: Simon Goldschmidt
795 * nearly every file: Use macros defined in ip_addr.h (some of them new)
796 to work with IP addresses (preparation for bug #27352 - Change ip_addr
797 from struct to typedef (u32_t) - and better code).
799 2010-01-31: Simon Goldschmidt
800 * netif.c: Don't call the link-callback from netif_set_up/down() since
801 this invalidly retriggers DHCP.
803 2010-01-29: Simon Goldschmidt
804 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
805 portability file inet.h and its contents from the stack: moved htonX-
806 functions to def.h (and the new def.c - they are not ipv4 dependent),
807 let inet.h depend on ip_addr.h and not the other way round.
808 This fixes bug #28732.
810 2010-01-28: Kieran Mansley
811 * tcp.c: Ensure ssthresh >= 2*MSS
813 2010-01-27: Simon Goldschmidt
814 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
815 callback can lead to accessing unallocated memory. As a consequence,
816 ERR_ABRT means the application has called tcp_abort()!
818 2010-01-25: Simon Goldschmidt
819 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
820 not implemented in SNMP): write-only or not-accessible are still
821 returned by getnext (though not by get)
823 2010-01-24: Simon Goldschmidt
824 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
825 not use reserved C/C++ keywords
827 2010-01-23: Simon Goldschmidt
828 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
831 2010-01-21: Simon Goldschmidt
832 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
833 if tcp_enqueue fails) both in raw- and netconn-API
835 2010-01-19: Simon Goldschmidt
836 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
838 2010-01-18: Iordan Neshev/Simon Goldschmidt
839 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
840 bugfix backports from 2.4.x.
842 2010-01-18: Simon Goldschmidt
843 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
845 2010-01-17: Simon Goldschmidt
846 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
847 task #10102: "netconn: clean up conn->err threading issues" by adding
848 error return value to struct api_msg_msg
850 2010-01-17: Simon Goldschmidt
851 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
852 to return err_t (bugs #27709 and #28087)
854 2010-01-14: Simon Goldschmidt
855 * ...: Use typedef for function prototypes throughout the stack.
857 2010-01-13: Simon Goldschmidt
858 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
859 window = 0) by correctly draining recvmbox/acceptmbox
861 2010-01-11: Simon Goldschmidt
862 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
863 erroneous callbacks) by copying the code from recent pppd
865 2010-01-10: Simon Goldschmidt
866 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
868 2010-01-10: Simon Goldschmidt
869 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
871 2010-01-08: Simon Goldschmidt
872 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
874 2010-01-08: Simon Goldschmidt
875 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
876 passed to dns_local_addhost() might be volatile
878 2010-01-07: Simon Goldschmidt
879 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
881 2010-01-06: Simon Goldschmidt
882 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
884 2009-12-31: Simon Goldschmidt
885 * many ppp files: Reorganised PPP source code from ucip structure to pppd
886 structure to easily compare our code against the pppd code (around v2.3.1)
888 2009-12-27: Simon Goldschmidt
889 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
897 2009-10-27 Simon Goldschmidt/Stephan Lesage
898 * netifapi.c/.h: Added netifapi_netif_set_addr()
900 2009-10-07 Simon Goldschmidt/Fabian Koch
901 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
902 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
904 2009-08-26 Simon Goldschmidt/Simon Kallweit
905 * slipif.c/.h: bug #26397: SLIP polling support
907 2009-08-25 Simon Goldschmidt
908 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
909 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
911 2009-08-25 Simon Goldschmidt
912 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
914 2009-08-24 Jakob Stoklund Olesen
915 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
916 to netif_set_link_up().
918 2009-08-23 Simon Goldschmidt
919 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
920 to a human-readable string.
924 2009-12-24: Kieran Mansley
925 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
928 2009-12-06: Simon Goldschmidt
929 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
930 be statically allocated (like in ucip)
932 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
933 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
935 2009-12-03: Simon Goldschmidt
936 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
937 could have non-zero length
939 2009-12-02: Simon Goldschmidt
940 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
941 tcp_input_pcb until after calling the pcb's callbacks
943 2009-11-29: Simon Goldschmidt
944 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
945 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
947 2009-11-29: Simon Goldschmidt
948 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
949 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
951 2009-11-26: Simon Goldschmidt
952 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
955 2009-11-26: Simon Goldschmidt
956 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
957 algorithm at PCB level
959 2009-11-22: Simon Goldschmidt
960 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
962 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
963 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
964 reusing time-wait pcb
966 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
967 * sockets.c: Fixed bug #28062: Data received directly after accepting
968 does not wake up select
970 2009-11-11: Simon Goldschmidt
971 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
973 2009-10-30: Simon Goldschmidt
974 * opt.h: Increased default value for TCP_MSS to 536, updated default
975 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
977 2009-10-28: Kieran Mansley
978 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
979 to follow algorithm from TCP/IP Illustrated
981 2009-10-27: Kieran Mansley
982 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
984 2009-10-25: Simon Goldschmidt
985 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
986 pcb->recv is NULL to keep rcv_wnd correct)
988 2009-10-25: Simon Goldschmidt
989 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
991 2009-10-23: Simon Goldschmidt (David Empson)
992 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
994 2009-10-21: Simon Goldschmidt
995 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
996 trailing 1 byte len (SYN/FIN)
998 2009-10-21: Simon Goldschmidt
999 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1001 2009-10-19: Simon Goldschmidt
1002 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1003 conditional code to assert where applicable), check pbuf length before
1004 testing for valid reply
1006 2009-10-19: Simon Goldschmidt
1007 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1008 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1010 2009-10-16: Simon Goldschmidt
1011 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1012 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1015 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1016 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1018 2009-10-15: Simon Goldschmidt
1019 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1022 2009-10-15: Simon Goldschmidt
1023 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1024 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1025 of network byte order
1027 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1028 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1029 which are not consecutive when retransmitting unacked segments
1031 2009-10-09 Simon Goldschmidt
1032 * opt.h: Fixed default values of some stats to only be enabled if used
1033 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1035 2009-08-30 Simon Goldschmidt
1036 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1037 function" by checking for loopback before calling ip_frag
1039 2009-08-25 Simon Goldschmidt
1040 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1042 2009-08-23 Simon Goldschmidt
1043 * ppp.c: bug #27078: Possible memory leak in pppInit()
1045 2009-08-23 Simon Goldschmidt
1046 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1049 2009-08-23 Simon Goldschmidt
1050 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1051 Fixed wrong parenthesis, added check in init.c
1053 2009-08-23 Simon Goldschmidt
1054 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1056 2009-08-23 Simon Goldschmidt
1057 * many ppp files: bug #27267: Added include to string.h where needed
1059 2009-08-23 Simon Goldschmidt
1060 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1067 2009-05-10 Simon Goldschmidt
1068 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1069 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1070 one pbuf to help MACs that don't support scatter-gather DMA.
1072 2009-05-09 Simon Goldschmidt
1073 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1074 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1076 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1077 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1078 extended info about the currently received packet.
1080 2009-04-27 Simon Goldschmidt
1081 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1083 2009-04-25 Simon Goldschmidt
1084 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1085 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1087 2009-04-21 Simon Goldschmidt
1088 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1089 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1090 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1091 as an external function for lookup.
1093 2009-04-15 Simon Goldschmidt
1094 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1096 2009-03-31 Kieran Mansley
1097 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1098 TCP timestamp options, off by default. Rework tcp_enqueue() to
1099 take option flags rather than specified option data
1101 2009-02-18 Simon Goldschmidt
1102 * cc.h: Added printf formatter for size_t: SZT_F
1104 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1105 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1108 2009-02-12 Simon Goldschmidt
1109 * init.h: Added LWIP_VERSION to get the current version of the stack
1111 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1112 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1113 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1116 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1117 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1118 is only used by UDPLITE at present, so conditionalise it.
1120 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1121 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1122 "seed" address. This should reduce AUTOIP conflicts if
1123 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1125 2008-10-02 Jonathan Larmour and Rishi Khan
1126 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1129 2008-06-30 Simon Goldschmidt
1130 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1131 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1132 mem_free to run between mem_malloc iterations. Added illegal counter for
1135 2008-06-27 Simon Goldschmidt
1136 * stats.h/.c, some other files: patch #6483: stats module improvement:
1137 Added defines to display each module's statistic individually, added stats
1138 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1140 2008-06-17 Simon Goldschmidt
1141 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1142 (define LWIP_ERR_T in cc.h)
1144 2008-06-17 Simon Goldschmidt
1145 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1148 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1149 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1150 modified version of patch # 6370: Moved loopif code to netif.c so that
1151 loopback traffic is supported on all netifs (all local IPs).
1152 Added option to limit loopback packets for each netifs.
1156 2009-08-12 Kieran Mansley
1157 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1158 out of window or out of order properly
1160 2009-08-12 Kieran Mansley
1161 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1163 2009-07-28 Simon Goldschmidt
1164 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1166 2009-07-27 Kieran Mansley
1167 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1169 2009-07-09 Kieran Mansley
1170 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1171 recv_avail and don't increment counters until message successfully
1174 2009-06-25 Kieran Mansley
1175 * api_msg.c api.h: BUG26722: initialise netconn write variables
1178 2009-06-25 Kieran Mansley
1179 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1181 2009-06-25 Kieran Mansley
1182 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1183 simultaneous close behaviour, and make snd_nxt have the same meaning
1186 2009-05-12 Simon Goldschmidt
1187 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1188 arp_table / uses etharp_query" by adding etharp_gratuitous()
1190 2009-05-12 Simon Goldschmidt
1191 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1192 to the IP header (used by igmp_ip_output_if)
1194 2009-05-06 Simon Goldschmidt
1195 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1196 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1198 2009-05-05 Simon Goldschmidt
1199 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1202 2009-05-04 Simon Goldschmidt
1203 * init.c: snmp was not initialized in lwip_init()
1205 2009-05-04 Frédéric Bernon
1206 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1208 2009-05-03 Simon Goldschmidt
1209 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1210 (and unsent->next == NULL)
1212 2009-05-02 Simon Goldschmidt
1213 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1214 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1216 2009-05-02 Simon Goldschmidt
1217 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1219 2009-05-01 Simon Goldschmidt
1220 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1222 2009-05-01 Simon Goldschmidt
1223 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1225 2009-04-29 Frédéric Bernon
1226 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1227 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1228 of broadcast packets even when this option wasn't set. Port maintainers
1229 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1230 If you want this option also filter broadcast on recv operations, you also
1231 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1233 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1234 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1235 DHCP/AUTOIP cooperation
1237 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1238 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1239 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1240 right place in tcp_output and tcp_rexmit).
1242 2009-04-25 Simon Goldschmidt
1243 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1244 when debugging": memp_sizes contained the wrong sizes (including sanity
1245 regions); memp pools for MEM_USE_POOLS were too small
1247 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1248 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1249 behavior, with with ip address string not ended by a '\0', a space or a
1252 2009-04-19 Simon Goldschmidt
1253 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1254 pcb->err is called, not pcb->connected (with an error code).
1256 2009-04-19 Simon Goldschmidt
1257 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1258 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1260 2009-04-19 Simon Goldschmidt
1261 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1262 in the header pbuf, not the data pbuf)
1264 2009-04-18 Simon Goldschmidt
1265 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1267 2009-04-15 Simon Goldschmidt
1268 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1270 2009-04-15 Simon Goldschmidt
1271 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1273 2009-04-15 Simon Goldschmidt
1274 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1275 ip_hinted_output() (for smaller code mainly)
1277 2009-04-15 Simon Goldschmidt
1278 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1280 2009-04-15 Simon Goldschmidt
1281 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1282 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1283 is big enough in dhcp_start
1285 2009-04-15 Simon Goldschmidt
1286 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1288 2009-04-15 Simon Goldschmidt
1289 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1291 2009-04-15 Simon Goldschmidt
1292 * sockets.c: bug #26121: set_errno can be overridden
1294 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1295 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1298 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1299 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1302 2009-03-31 Kieran Mansley
1303 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1304 updates are calculated and sent (BUG20515)
1306 * tcp_in.c: cope with SYN packets received during established states,
1307 and retransmission of initial SYN.
1309 * tcp_out.c: set push bit correctly when tcp segments are merged
1311 2009-03-27 Kieran Mansley
1312 * tcp_out.c set window correctly on probes (correcting change made
1315 2009-03-26 Kieran Mansley
1316 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1317 connections where no reset required (bug #25622)
1319 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1322 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1323 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1324 too small depending on MEM_ALIGNMENT
1326 2009-02-16 Simon Goldschmidt
1327 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1328 converted size argument of netconn_write to 'size_t'
1330 2009-02-16 Simon Goldschmidt
1331 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1332 by moving accept callback function pointer to TCP_PCB_COMMON
1334 2009-02-12 Simon Goldschmidt
1335 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1338 2009-02-11 Simon Goldschmidt
1339 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1341 2009-02-11 Simon Goldschmidt
1342 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1343 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1345 2009-02-10 Simon Goldschmidt
1346 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1347 Accepts_pending is decrease on a corresponding listen pcb when a connection
1348 in state SYN_RCVD is close.
1350 2009-01-28 Jonathan Larmour
1351 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1354 2008-12-19 Simon Goldschmidt
1355 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1357 2008-12-10 Tamas Somogyi, Frédéric Bernon
1358 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1359 port uses deleted netbuf.
1361 2008-10-18 Simon Goldschmidt
1362 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1365 2008-10-15 Simon Goldschmidt
1366 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1367 by packing the struct ip_reass_helper.
1369 2008-10-03 David Woodhouse, Jonathan Larmour
1370 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1372 2008-10-02 Jonathan Larmour
1373 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1374 padding is included.
1376 2008-09-30 Jonathan Larmour
1377 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1378 assertion check that addrlen isn't NULL.
1380 2008-09-30 Jonathan Larmour
1381 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1383 2008-08-26 Simon Goldschmidt
1384 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1385 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1387 2008-08-14 Simon Goldschmidt
1388 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1389 tcp_close returns != ERR_OK)
1391 2008-07-08 Frédéric Bernon
1392 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1393 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1395 2008-06-24 Jonathan Larmour
1396 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1397 if tcp_seg_copy fails.
1399 2008-06-17 Simon Goldschmidt
1400 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1401 and created defines for swapping bytes and folding u32 to u16.
1403 2008-05-30 Kieran Mansley
1404 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1405 rather than rcv_ann_wnd when deciding if packets are in-window.
1406 Contributed by <arasmussen@consultant.datasys.swri.edu>
1408 2008-05-30 Kieran Mansley
1409 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1410 passing as function pointers when MEM_LIBC_MALLOC is defined.
1412 2008-05-09 Jonathan Larmour
1413 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1414 stop it being treated as a fatal error.
1416 2008-04-15 Simon Goldschmidt
1417 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1420 2008-03-27 Simon Goldschmidt
1421 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1422 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1423 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1424 or heap memory from interrupt context
1426 2008-03-26 Simon Goldschmidt
1427 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1428 host sent a zero mss as TCP option.
1435 2008-03-10 Jonathan Larmour
1436 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1437 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1439 2008-01-22 Frédéric Bernon
1440 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1441 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1443 2008-01-14 Frédéric Bernon
1444 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1445 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1446 tcp_recv callback (see rawapi.txt).
1448 2008-01-14 Frédéric Bernon, Marc Chaland
1449 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1451 2008-01-12 Frédéric Bernon
1452 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1453 netconn::sem per netconn::op_completed like suggested for the task #7490
1454 "Add return value to sys_mbox_post".
1456 2008-01-12 Frédéric Bernon
1457 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1458 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1459 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1461 2008-01-10 Frédéric Bernon
1462 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1463 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1464 "blocking" ("block" parameter = 1).
1466 2008-01-10 Frédéric Bernon
1467 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1468 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1469 "Add return value to sys_mbox_post".
1471 2008-01-05 Frédéric Bernon
1472 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1473 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1474 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1475 indicate the number of pointers query by the mailbox. There is three defines
1476 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1477 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1478 parameter in your implementation, but to ignore it to keep the previous behavior.
1479 The new sys_mbox_trypost function return a value to know if the mailbox is
1480 full or if the message is posted. Take a look to sys_arch.txt for more details.
1481 This new function is used in tcpip_input (so, can be called in an interrupt
1482 context since the function is not blocking), and in recv_udp and recv_raw.
1484 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1485 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1486 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1487 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1488 documentation in the rawapi.txt file.
1490 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1491 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1493 2007-12-31 Frédéric Bernon, Luca Ceresoli
1494 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1495 in autoip". The change in etharp_raw could be removed, since all calls to
1496 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1497 wrong in the future.
1499 2007-12-30 Frédéric Bernon, Tom Evans
1500 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1501 Filtering" reported by Tom Evans.
1503 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1504 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1505 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1506 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1507 keep accepting new connections.
1509 2007-12-13 Frédéric Bernon
1510 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1511 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1513 2007-12-12 Frédéric Bernon
1514 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1515 are the one which have ram usage.
1517 2007-12-05 Frédéric Bernon
1518 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1519 set of variables (=0) or a local one (=1). In this last case, your port should
1520 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1521 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1523 2007-12-03 Simon Goldschmidt
1524 * ip.c: ip_input: check if a packet is for inp first before checking all other
1525 netifs on netif_list (speeds up packet receiving in most cases)
1527 2007-11-30 Simon Goldschmidt
1528 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1529 UDP: move a (connected) pcb selected for input to the front of the list of
1530 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1533 2007-11-28 Simon Goldschmidt
1534 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1536 2007-11-25 Simon Goldschmidt
1537 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1540 2007-11-24 Simon Goldschmidt
1541 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1542 to the new file netdb.c; included lwip_getaddrinfo.
1544 2007-11-21 Simon Goldschmidt
1545 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1546 based on the MTU of the netif used to send. Enabled by default. Disable by
1547 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1549 2007-11-19 Frédéric Bernon
1550 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1551 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1552 copy dns payload to parse the response), return an error if there is no place
1553 for a new query, and fix some minor problems.
1555 2007-11-16 Simon Goldschmidt
1556 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1557 removed files: core/inet.c, core/inet6.c
1558 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1559 inet and chksum part; changed includes in all lwIP files as appropriate
1561 2007-11-16 Simon Goldschmidt
1562 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1563 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1564 (gethostbyname/gethostbyname_r).
1566 2007-11-15 Jim Pettinato, Frédéric Bernon
1567 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1568 requests with RAW api interface. Initialization is done in lwip_init() with
1569 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1570 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1571 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1572 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1573 list with points to improve.
1575 2007-11-06 Simon Goldschmidt
1576 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1577 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1578 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1580 2007-11-06 Simon Goldschmidt
1581 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1582 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1583 implementation from netconn api applications.
1585 2007-11-03 Frédéric Bernon
1586 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1587 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1588 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1589 it. This is a first release which have to be improve for TCP. Note it used the
1590 netconn::recv_avail which need to be more "thread-safe" (note there is already
1591 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1593 2007-11-01 Frédéric Bernon, Marc Chaland
1594 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1595 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1596 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1597 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1598 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1600 2007-10-24 Frédéric Bernon
1601 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1602 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1603 some code (like we have talk in "patch #5919 : Create compile switch to remove
1604 select code"), but it could be done later.
1606 2007-10-08 Simon Goldschmidt
1607 * many files: Changed initialization: many init functions are not needed any
1608 more since we now rely on the compiler initializing global and static
1611 2007-10-06 Simon Goldschmidt
1612 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1613 to enqueue the received pbufs so that multiple packets can be reassembled
1614 simultaneously and no static reassembly buffer is needed.
1616 2007-10-05 Simon Goldschmidt
1617 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1618 all netifs (or ports) can use it.
1620 2007-10-05 Frédéric Bernon
1621 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1622 common function to reduce a little bit the footprint (for all functions using
1623 only the "netif" parameter).
1625 2007-10-03 Frédéric Bernon
1626 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1627 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1628 a little bit the footprint (for all functions using only the "netif" parameter).
1630 2007-09-15 Frédéric Bernon
1631 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1632 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1633 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1634 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1636 2007-09-10 Frédéric Bernon
1637 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1638 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1639 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1640 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1641 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1642 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1643 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1644 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1645 when it's queried (any direct call to "sysuptime" is changed by a call to
1646 snmp_get_sysuptime).
1648 2007-09-09 Frédéric Bernon, Bill Florac
1649 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1650 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1651 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1652 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1653 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1654 the next query message to receive the matching multicast streams).
1656 2007-09-08 Frédéric Bernon
1657 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1658 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1659 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1660 Enable to access to these fields with LWIP_TCP=0.
1662 2007-09-05 Frédéric Bernon
1663 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1664 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1665 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1666 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1667 help to reduce footprint, and to reduce "visibility" on the Internet.
1669 2007-09-05 Frédéric Bernon, Bill Florac
1670 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1671 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1672 parameters have to be provided: a task name, and a task stack size. For this
1673 one, since it's platform dependant, you could define the best one for you in
1674 your lwipopts.h. For port maintainers, you can just add these new parameters
1675 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1678 2007-09-05 Frédéric Bernon
1679 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1680 inside init.c for task #7142 "Sanity check user-configurable values".
1682 2007-09-04 Frédéric Bernon, Bill Florac
1683 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1684 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1685 value). It will avoid potential fragmentation problems, use a counter to know
1686 how many times a group is used on an netif, and free it when all applications
1687 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1688 check if LWIP_IGMP!=0).
1690 2007-09-03 Frédéric Bernon
1691 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1692 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1693 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1694 and/or the "interface" field (for netconn layer), for join/leave operations.
1695 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1696 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1698 2007-08-30 Frédéric Bernon
1699 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1700 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1701 with other API (application based on raw API, or future "socket2" API). Ports
1702 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1704 2007-08-30 Frédéric Bernon, Jonathan Larmour
1705 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1706 user-configurable values".
1708 2007-08-29 Frédéric Bernon
1709 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1710 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1711 spirit than the others modules. Modify some IGMP debug traces.
1713 2007-08-29 Frédéric Bernon
1714 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1715 Add lwip_init function to regroup all modules initializations, and to provide
1716 a place to add code for task #7142 "Sanity check user-configurable values".
1717 Ports maintainers should remove direct initializations calls from their code,
1718 and add init.c in their makefiles. Note that lwip_init() function is called
1719 inside tcpip_init, but can also be used by raw api users since all calls are
1720 disabled when matching options are disabled. Also note that their is new options
1721 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1723 2007-08-26 Marc Boucher
1724 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1725 since they can under certain circumstances be called with an invalid conn
1726 pointer after the connection has been closed (and conn has been freed).
1728 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1729 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1730 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1732 2007-08-22 Frédéric Bernon
1733 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1734 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1736 2007-08-22 Frédéric Bernon
1737 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1738 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1739 name is tcpip_input (we keep the name of 1.2.0 function).
1741 2007-08-17 Jared Grubb
1742 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1743 settings into new memp_std.h and optional user file lwippools.h. This adds
1744 more dynamic mempools, and allows the user to create an arbitrary number of
1745 mempools for mem_malloc.
1747 2007-08-16 Marc Boucher
1748 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1749 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1750 close the connection.
1752 2007-08-16 Marc Boucher
1753 * sockets.c: lwip_accept(): check netconn_peer() error return.
1755 2007-08-16 Marc Boucher
1756 * mem.c, mem.h: Added mem_calloc().
1758 2007-08-16 Marc Boucher
1759 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1760 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1761 and starving other message types.
1762 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1764 2007-08-16 Marc Boucher
1765 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1766 type and flgs (later renamed to flags).
1767 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1768 Improved lwip_recvfrom(). TCP push now propagated.
1770 2007-08-16 Marc Boucher
1771 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1774 2007-08-16 Marc Boucher
1775 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1776 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1777 Added PPPoE support and various PPP improvements.
1779 2007-07-25 Simon Goldschmidt
1780 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1781 making netbuf_copy_partial use this function.
1783 2007-07-25 Simon Goldschmidt
1784 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1785 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1788 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1789 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1790 a link callback in the netif struct, and functions to handle it. Be carefull
1791 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1792 if you want to be sure to be compatible with future changes...
1794 2007-06-30 Frédéric Bernon
1795 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1797 2007-06-21 Simon Goldschmidt
1798 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1799 LWIP_AUTOIP =0 and =1 to remove redundant code.
1801 2007-06-21 Simon Goldschmidt
1802 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1803 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1804 heap. This both prevents memory fragmentation and gives a higher speed
1805 at the cost of more memory consumption. Turned off by default.
1807 2007-06-21 Simon Goldschmidt
1808 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1809 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1810 int to be able to send a bigger buffer than 64K with one time (mainly
1811 used from lwip_send).
1813 2007-06-21 Simon Goldschmidt
1814 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1815 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1817 2007-06-21 Simon Goldschmidt
1818 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1819 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1820 changes on low memory or empty send-buffer.
1822 2007-06-18 Simon Goldschmidt
1823 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1824 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1825 used for ethernet and struct eth_addr already had a defined length of 6).
1827 2007-06-17 Simon Goldschmidt
1828 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1829 to disable UDP checksum generation on transmit.
1831 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1832 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1833 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1834 this macro to check "conn" parameter in api_msg.c functions.
1836 2007-06-11 Simon Goldschmidt
1837 * sockets.c, sockets.h: Added UDP lite support for sockets
1839 2007-06-10 Simon Goldschmidt
1840 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1841 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1844 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1845 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1846 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1847 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1848 (see TODO mark in the source code).
1850 2007-06-09 Simon Goldschmidt
1851 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1852 etharp_output() to match netif->output so etharp_output() can be used
1853 directly as netif->output to save one function call.
1855 2007-06-08 Simon Goldschmidt
1856 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1857 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1858 added initialization of those to ethernetif, slipif and loopif.
1860 2007-05-18 Simon Goldschmidt
1861 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1862 (defaulting to off for now) that can be set to 0 to send fragmented
1863 packets by passing PBUF_REFs down the stack.
1865 2007-05-23 Frédéric Bernon
1866 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1867 connections, such present in patch #5959.
1869 2007-05-23 Frédéric Bernon
1870 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1871 code in only one part...
1873 2007-05-18 Simon Goldschmidt
1874 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1875 elements to overflow. This is achieved by adding some bytes before and after
1876 each pool element (increasing their size, of course), filling them with a
1877 prominent value and checking them on freeing the element.
1878 Set it to 2 to also check every element in every pool each time memp_malloc()
1879 or memp_free() is called (slower but more helpful).
1881 2007-05-10 Simon Goldschmidt
1882 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1883 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1886 2007-05-11 Frédéric Bernon
1887 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1888 Include a function pointer instead of a table index in the message to reduce
1889 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1890 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1892 2007-05-10 Simon Goldschmidt
1893 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1894 \ extern "C" {' in all header files. Now you can write your application using
1895 the lwIP stack in C++ and simply #include the core files. Note I have left
1896 out the netif/ppp/*h header files for now, since I don't know which files are
1897 included by applications and which are for internal use only.
1899 2007-05-09 Simon Goldschmidt
1900 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1901 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1902 situations where some compilers might inline the copy and save a function
1903 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1905 2007-05-08 Simon Goldschmidt
1906 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1907 to be overriden in case the C-library malloc implementation is not protected
1908 against concurrent access.
1910 2007-05-04 Simon Goldschmidt (Atte Kojo)
1911 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1912 multiple packets to the same host.
1914 2007-05-04 Frédéric Bernon, Jonathan Larmour
1915 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1916 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1917 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1918 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1919 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1920 these fields are now renamed "addr" & "port".
1922 2007-04-11 Jonathan Larmour
1923 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1924 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1925 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1926 by the port in sys_arch.h if desired.
1928 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1929 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1930 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1931 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1933 2007-04-05 Frédéric Bernon
1934 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1936 2007-04-04 Simon Goldschmidt
1937 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1938 use this for and architecture-independent form to tell the compiler you intentionally
1939 are not using this variable. Can be overriden in cc.h.
1941 2007-03-28 Frédéric Bernon
1942 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1943 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1944 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1945 It will be used by DHCP to register a client hostname, but can also be use when you call
1948 2007-03-28 Frédéric Bernon
1949 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1950 initialize a network interface's flag with. It tell this interface is an ethernet
1951 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1952 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1954 2007-03-26 Frédéric Bernon, Jonathan Larmour
1955 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1956 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1957 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1958 is done in tcpip_init function.
1960 2007-03-22 Frédéric Bernon
1961 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1962 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1963 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1964 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1965 but never used. Fix msg_in.c with the correct #if test for a stat display.
1967 2007-03-21 Kieran Mansley
1968 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1969 Provides callback on netif up/down state change.
1971 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1972 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1973 ip.c, netif.h, tcpip.c, opt.h:
1974 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1975 filter per all network interfaces. Declare a new function in netif to enable to
1976 control the MAC filter (to reduce lwIP traffic processing).
1978 2007-03-11 Frédéric Bernon
1979 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1980 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1981 unless you know what you're doing (default are RFC1122 compliant). Note
1982 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1984 2007-03-08 Frédéric Bernon
1985 * tcp.h: Keepalive values can be configured at compile time, but don't change
1986 this unless you know what you're doing (default are RFC1122 compliant).
1988 2007-03-08 Frédéric Bernon
1989 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1990 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1991 on UDP sockets/netconn.
1993 2007-03-08 Simon Goldschmidt
1994 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1996 2007-03-06 Frédéric Bernon
1997 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1998 Implement SO_RCVTIMEO on UDP sockets/netconn.
2000 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2001 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2002 on the stack and remove the API msg type from memp
2004 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2005 * sockets.h, sockets.c: Move socket initialization to new
2006 lwip_socket_init() function.
2007 NOTE: this changes the API with ports. Ports will have to be
2008 updated to call lwip_socket_init() now.
2010 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2011 * api_lib.c: Use memcpy in netbuf_copy_partial.
2016 2008-03-17 Frédéric Bernon, Ed Kerekes
2017 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2018 some problems to fill the IP header on some targets, use now the
2019 ip.h macros to do it).
2021 2008-03-13 Frédéric Bernon
2022 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2023 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2024 TCP connection caused a crash. Note that using (lwip_)recvfrom
2025 like this is a bit slow and that using (lwip)getpeername is the
2026 good lwip way to do it (so, using recv is faster on tcp sockets).
2028 2008-03-12 Frédéric Bernon, Jonathan Larmour
2029 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2030 recv_raw() does not consume data", and the ping sample (with
2031 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2032 returned the IP payload, without the IP header).
2034 2008-03-04 Jonathan Larmour
2035 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2036 and/or warnings on some systems where mem_size_t and size_t differ.
2037 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2039 2008-03-04 Kieran Mansley (contributions by others)
2040 * Numerous small compiler error/warning fixes from contributions to
2041 mailing list after 1.3.0 release candidate made.
2043 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2044 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2046 2008-01-15 Kieran Mansley
2047 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2048 prevented from sending by a small send window, not just a zero
2051 2008-01-09 Jonathan Larmour
2052 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2053 conflict with Linux system headers.
2055 2008-01-06 Jonathan Larmour
2056 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2057 address entirely on receiving a DHCPNAK, and restarting discovery.
2059 2007-12-21 Simon Goldschmidt
2060 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2061 is not protected" by using new macros for interlocked access to modify/test
2062 netconn->recv_avail.
2064 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2065 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2067 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2068 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2069 of silly window avoidance and prevent lwIP from shrinking the window)
2071 2007-12-04 Simon Goldschmidt
2072 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2073 data packet was lost): add assert that all segment lists are empty in
2074 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2075 state from LAST_ACK in tcp_process
2077 2007-12-02 Simon Goldschmidt
2078 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2079 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2080 has to be set to 0 in lwipopts.h
2082 2007-12-02 Simon Goldschmidt
2083 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2084 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2085 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2086 This is a fix for thread-safety and allocates all items needed for a netconn
2087 when the netconn is created.
2089 2007-11-30 Simon Goldschmidt
2090 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2091 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2092 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2093 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2095 2007-11-27 Simon Goldschmidt
2096 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2097 letting ip_route only use netifs that are up.
2099 2007-11-27 Simon Goldschmidt
2100 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2101 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2102 sockets block most operations once they have seen a fatal error.
2104 2007-11-27 Simon Goldschmidt
2105 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2106 netif to send as an argument (to be able to send on netifs that are down).
2108 2007-11-26 Simon Goldschmidt
2109 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2112 2007-11-21 Simon Goldschmidt
2113 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2114 Fixed the nagle algorithm; nagle now also works for all raw API applications
2115 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2117 2007-11-12 Frédéric Bernon
2118 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2119 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2120 context in do_getaddr.
2122 2007-11-10 Simon Goldschmidt
2123 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2124 happen any time). Now the packet simply isn't enqueued when out of memory.
2126 2007-11-01 Simon Goldschmidt
2127 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2128 TCP_MSS if that is smaller) as long as no MSS option is received from the
2131 2007-11-01 Simon Goldschmidt
2132 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2133 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2134 sending our configured TCP_MSS instead of the one received).
2136 2007-11-01 Simon Goldschmidt
2137 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2138 calculated based on the configured TCP_MSS, not on the MSS option received
2141 2007-10-09 Simon Goldschmidt
2142 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2143 short and also was generated wrong if checksum coverage != tot_len;
2144 receive: checksum was calculated wrong if checksum coverage != tot_len
2146 2007-10-08 Simon Goldschmidt
2147 * mem.c: lfree was not updated in mem_realloc!
2149 2007-10-07 Frédéric Bernon
2150 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2151 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2152 this change cause an API breakage for netconn_addr, since a parameter
2153 type change. Any compiler should cause an error without any changes in
2154 yours netconn_peer calls (so, it can't be a "silent change"). It also
2155 reduce a little bit the footprint for socket layer (lwip_getpeername &
2156 lwip_getsockname use now a common lwip_getaddrname function since
2157 netconn_peer & netconn_addr have the same parameters).
2159 2007-09-20 Simon Goldschmidt
2160 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2161 by checking tcp_tw_pcbs also
2163 2007-09-19 Simon Goldschmidt
2164 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2166 2007-09-15 Mike Kleshov
2167 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2169 2007-09-06 Frédéric Bernon
2170 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2171 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2172 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2173 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2175 2007-08-30 Frédéric Bernon
2176 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2177 and fix some coding style.
2179 2007-08-28 Frédéric Bernon
2180 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2181 kind of packets. These packets are considered like Ethernet packets (payload
2182 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2183 are considered like IP packets (payload pointing to iphdr).
2185 2007-08-27 Frédéric Bernon
2186 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2187 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2188 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2190 2007-08-24 Kieran Mansley
2191 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2192 compiler (Paradigm C++)
2194 2007-08-09 Frédéric Bernon, Bill Florac
2195 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2196 Introduce IGMP_STATS to centralize statistics management.
2198 2007-08-09 Frédéric Bernon, Bill Florac
2199 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2200 packet on a udp pcb binded on an netif's IP address, and not on "any".
2202 2007-08-09 Frédéric Bernon, Bill Florac
2203 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2204 This is mainly on using lookup/lookfor, and some coding styles...
2206 2007-07-26 Frédéric Bernon (and "thedoctor")
2207 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2209 2007-07-25 Simon Goldschmidt
2210 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2211 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2212 (tcp_output is called again later from tcp timers).
2214 2007-07-25 Simon Goldschmidt
2215 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2216 copy_from_pbuf, which illegally modified the given pbuf.
2218 2007-07-25 Simon Goldschmidt
2219 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2220 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2222 2007-07-24 Simon Goldschmidt
2223 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2224 correct state (must be CLOSED).
2226 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2227 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2228 allocation. It now returns NULL.
2230 2007-07-13 Frédéric Bernon
2231 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2234 2007-07-13 Frédéric Bernon
2235 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2236 because current code doesn't follow rawapi.txt documentation.
2238 2007-07-13 Kieran Mansley
2239 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2240 out of sequence processing of received packets
2242 2007-07-03 Simon Goldschmidt
2243 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2244 assumption is made that this pbuf is in one piece (i.e. not chained). These
2245 assumptions clash with the possibility of converting to fully pool-based
2246 pbuf implementations, where PBUF_RAM pbufs might be chained.
2248 2007-07-03 Simon Goldschmidt
2249 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2250 when closing tcp netconns: removed conn->sem, less context switches when
2251 closing, both netconn_close and netconn_delete should safely close tcp
2254 2007-07-02 Simon Goldschmidt
2255 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2256 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2257 to cache ARP table indices with each pcb instead of single-entry cache for
2260 2007-07-02 Simon Goldschmidt
2261 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2262 warnings when assigning to smaller types.
2264 2007-06-28 Simon Goldschmidt
2265 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2267 2007-06-28 Simon Goldschmidt
2268 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2269 a segment contained chained pbufs)
2271 2007-06-28 Frédéric Bernon
2272 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2273 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2274 possible to define this macro in your own lwipopts.h to always use C library's
2275 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2277 2007-06-28 Frédéric Bernon
2278 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2279 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2280 in api_lib/api_msg (use pointers and not type with table, etc...)
2282 2007-06-26 Simon Goldschmidt
2283 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2285 2007-06-25 Simon Goldschmidt
2286 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2287 for udp packets with no matching pcb.
2289 2007-06-25 Simon Goldschmidt
2290 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2291 could get udp input packets if the remote side matched.
2293 2007-06-13 Simon Goldschmidt
2294 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2295 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2297 2007-06-13 Simon Goldschmidt
2298 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2299 -> netconn_new_..() does not allocate a new connection for unsupported
2302 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2303 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2304 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2306 2007-06-13 Frédéric Bernon, Matthias Weisser
2307 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2308 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2309 some macro names collision with some OS macros.
2311 2007-06-11 Simon Goldschmidt
2312 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2313 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2314 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2317 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2318 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2319 where TCP flags wasn't initialized in tcp_keepalive.
2321 2007-06-03 Simon Goldschmidt
2322 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2323 registered, p->payload was modified without modifying p->len if sending
2324 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2326 2007-06-03 Simon Goldschmidt
2327 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2328 re-used the input pbuf even if that didn't have enough space to include the
2329 link headers. Now the space is tested and a new pbuf is allocated for the
2330 echo response packet if the echo request pbuf isn't big enough.
2332 2007-06-01 Simon Goldschmidt
2333 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2335 2007-05-23 Frédéric Bernon
2336 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2337 allocated by do_listen if success) and netconn_accept errors handling. In
2338 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2339 by ASSERT, except for netconn_delete.
2341 2007-05-23 Frédéric Bernon
2342 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2343 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2344 directly close the recvmbox).
2346 2007-05-22 Simon Goldschmidt
2347 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2348 bound but unconnected (and non-listening) tcp_pcbs.
2350 2007-05-22 Frédéric Bernon
2351 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2352 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2353 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2354 like "sys_timeout" in their application threads.
2356 2007-05-22 Frédéric Bernon
2357 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2358 which parameters are used by which do_xxx function, and to avoid "misusing"
2359 parameters (patch #5938).
2361 2007-05-22 Simon Goldschmidt
2362 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2363 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2364 is only 8 bits wide. This affects the api, as there, the protocol was
2367 2007-05-18 Simon Goldschmidt
2368 * memp.c: addition to patch #5913: smaller pointer was returned but
2369 memp_memory was the same size -> did not save memory.
2371 2007-05-16 Simon Goldschmidt
2372 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2375 2007-05-16 Simon Goldschmidt
2376 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2377 as the one of the netif used for sending to prevent sending from old
2378 addresses after a netif address gets changed (partly fixes bug #3168).
2380 2007-05-16 Frédéric Bernon
2381 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2382 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2383 tcpip_init) because we have to be sure that network interfaces are already
2384 added (mac filter is updated only in igmp_init for the moment).
2386 2007-05-16 Simon Goldschmidt
2387 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2388 into sys_arch_sem_wait calls to prevent timers from running while waiting
2389 for the heap. This fixes bug #19167.
2391 2007-05-13 Simon Goldschmidt
2392 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2393 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2396 2007-05-07 Simon Goldschmidt
2397 * mem.c: Another attempt to fix bug #17922.
2399 2007-05-04 Simon Goldschmidt
2400 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2401 implementation so that it can be reused (don't allocate the target
2402 pbuf inside pbuf_copy()).
2404 2007-05-04 Simon Goldschmidt
2405 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2406 to save a little RAM (next pointer of memp is not used while not in pool).
2409 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2412 2007-04-23 Simon Goldschmidt
2413 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2414 in NULL reference for incoming TCP packets". Loopif has to be configured
2415 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2416 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2417 putting packets on a list that is fed to the stack by calling loopif_poll()
2418 (single-thread / NO_SYS / polling environment where e.g.
2419 netif->input() = ip_input).
2421 2007-04-17 Jonathan Larmour
2422 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2423 the difference between two u16_t's.
2424 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2425 MEMP_NUM_NETCONN in sockets.c right now.
2427 2007-04-12 Jonathan Larmour
2428 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2430 2007-04-12 Kieran Mansley
2431 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2432 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2434 2007-04-11 Simon Goldschmidt
2435 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2436 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2437 pbuf.c: removed functions no needed any more (by etharp).
2439 2007-04-11 Kieran Mansley
2440 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2441 "Constant is long" warnings with 16bit compilers. Contributed by
2442 avatar@mmlab.cse.yzu.edu.tw
2444 2007-04-05 Frédéric Bernon, Jonathan Larmour
2445 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2446 the mailbox is active". Now, the post is only done during a connect, and do_send,
2447 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2449 2007-04-03 Frédéric Bernon
2450 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2451 packets. See patch #5834.
2453 2007-03-30 Frédéric Bernon
2454 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2455 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2457 2007-03-30 Frédéric Bernon
2458 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2459 others environment defines (these were too "generic").
2461 2007-03-28 Frédéric Bernon
2462 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2463 result and can cause a crash. lwip_send now check netbuf_ref result.
2465 2007-03-28 Simon Goldschmidt
2466 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2467 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2468 defined. This is the way it should have been already (looking at
2471 2007-03-28 Kieran Mansley
2472 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2473 IP and TCP headers *and* physical link headers
2475 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2476 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2477 to send some garbage. It is not a definitive solution, but the patch does solve
2478 the problem for most cases.
2480 2007-03-22 Frédéric Bernon
2481 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2483 2007-03-22 Frédéric Bernon
2484 * api_lib.c: somes resources couldn't be freed if there was errors during
2485 netconn_new_with_proto_and_callback.
2487 2007-03-22 Frédéric Bernon
2488 * ethernetif.c: update netif->input calls to check return value. In older ports,
2489 it's a good idea to upgrade them, even if before, there could be another problem
2490 (access to an uninitialized mailbox).
2492 2007-03-21 Simon Goldschmidt
2493 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2494 by casting to unsigned).
2496 2007-03-21 Frédéric Bernon
2497 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2498 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2499 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2500 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2501 faster and more reliable communication between api_lib and tcpip.
2503 2007-03-21 Frédéric Bernon
2504 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2506 2007-03-21 Frédéric Bernon
2507 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2509 2007-03-21 Kieran Mansley
2510 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2513 2007-03-21 Kieran Mansley
2514 * Fix all uses of pbuf_header to check the return value. In some
2515 cases just assert if it fails as I'm not sure how to fix them, but
2516 this is no worse than before when they would carry on regardless
2519 2007-03-21 Kieran Mansley
2520 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2521 comment out missing header include in icmp.c
2523 2007-03-20 Frédéric Bernon
2524 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2525 synchronized with memp.h.
2527 2007-03-20 Frédéric Bernon
2528 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2529 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2530 network interfaces. Also fix a compiler warning.
2532 2007-03-20 Kieran Mansley
2533 * udp.c: Only try and use pbuf_header() to make space for headers if
2534 not a ROM or REF pbuf.
2536 2007-03-19 Frédéric Bernon
2537 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2540 2007-03-19 Frédéric Bernon
2541 * Remove unimplemented "memp_realloc" function from memp.h.
2543 2007-03-11 Simon Goldschmidt
2544 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2547 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2548 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2549 (missing `const' qualifier in socket functions), to get more compatible to
2550 standard POSIX sockets.
2552 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2553 * sockets.c: Add asserts inside bind, connect and sendto to check input
2554 parameters. Remove excessive set_errno() calls after get_socket(), because
2555 errno is set inside of get_socket(). Move last sock_set_errno() inside
2558 2007-03-09 Simon Goldschmidt
2559 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2560 was allocated too small.
2562 2007-03-06 Simon Goldschmidt
2563 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2564 the stack from concurrent access.
2566 2007-03-06 Frédéric Bernon, Dmitry Potapov
2567 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2568 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2570 2007-03-06 Simon Goldschmidt
2571 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2572 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2574 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2575 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2576 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2577 Allow to do ARP processing for incoming packets inside tcpip_thread
2578 (protecting ARP layer against concurrent access). You can also disable
2579 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2580 Older ports have to use tcpip_ethinput.
2582 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2583 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2584 from pointer target type"
2586 2007-03-05 Frédéric Bernon
2587 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2588 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2590 2007-03-04 Frédéric Bernon
2591 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2594 2007-03-04 Frédéric Bernon
2595 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2597 The api_msg struct stay on the stack (not moved to netconn struct).
2599 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2600 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2601 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2602 Also fixed cast warning in pbuf_alloc()
2604 2007-03-04 Simon Goldschmidt
2605 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2606 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2608 2007-03-03 Frédéric Bernon
2609 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2610 It is static, and never used in udp.c except udp_init().
2612 2007-03-02 Simon Goldschmidt
2613 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2614 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2615 initialized before tcpip_thread is running (e.g. before OS is started)
2617 2007-03-02 Frédéric Bernon
2618 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2621 2007-02-28 Kieran Mansley
2622 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2623 outside the region of the pbuf by pbuf_header()
2625 2007-02-28 Kieran Mansley
2626 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2627 when supplied timeout is also non-zero
2631 2006-12-05 Leon Woestenberg
2632 * CHANGELOG: Mention STABLE-1.2.0 release.
2636 2006-12-01 Christiaan Simons
2637 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2638 Note this is a workaround. Currently I have no other options left.
2640 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2641 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2642 to include/lwip/opt.h.
2643 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2644 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2645 * opt.h: Add above new options.
2647 2006-08-18 Christiaan Simons
2648 * tcp_{in,out}.c: added SNMP counters.
2649 * ipv4/ip.c: added SNMP counters.
2650 * ipv4/ip_frag.c: added SNMP counters.
2652 2006-08-08 Christiaan Simons
2653 * etharp.{c,h}: added etharp_find_addr() to read
2654 (stable) ethernet/IP address pair from ARP table
2656 2006-07-14 Christiaan Simons
2657 * mib_structs.c: added
2658 * include/lwip/snmp_structs.h: added
2659 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2661 2006-07-06 Christiaan Simons
2662 * snmp/asn1_{enc,dec}.c added
2664 * snmp/msg_{in,out}.c added
2665 * include/lwip/snmp_asn1.h added
2666 * include/lwip/snmp_msg.h added
2667 * doc/snmp_agent.txt added
2669 2006-03-29 Christiaan Simons
2670 * inet.c, inet.h: Added platform byteswap support.
2671 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2672 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2676 2006-11-30 Christiaan Simons
2677 * dhcp.c: Fixed false triggers of request_timeout.
2679 2006-11-28 Christiaan Simons
2680 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2682 2006-10-11 Christiaan Simons
2683 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2684 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2685 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2686 identifier from 170 to 136 (bug #17574).
2688 2006-10-10 Christiaan Simons
2689 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2691 2006-08-17 Christiaan Simons
2692 * udp.c: Fixed bug #17200, added check for broadcast
2693 destinations for PCBs bound to a unicast address.
2695 2006-08-07 Christiaan Simons
2696 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2698 2006-06-27 Christiaan Simons
2699 * api_msg.c: Applied patch for cold case (bug #11135).
2700 In accept_function() ensure newconn->callback is always initialized.
2702 2006-06-15 Christiaan Simons
2703 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2704 facilitate printing of mem_size_t and u16_t statistics.
2706 2006-06-14 Christiaan Simons
2707 * api_msg.c: Applied patch #5146 to handle allocation failures
2708 in accept() by Kevin Lawson.
2710 2006-05-26 Christiaan Simons
2711 * api_lib.c: Removed conn->sem creation and destruction
2712 from netconn_write() and added sys_sem_new to netconn_new_*.
2716 2006-03-03 Christiaan Simons
2717 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2718 access and added pbuf_alloc() return value checks.
2720 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2721 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2722 now handled by the checksum routine properly.
2724 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2725 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2726 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2728 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2729 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2730 submitted by Mitrani Hiroshi.
2732 2005-12-15 Christiaan Simons
2733 * inet.c: Disabled the added summing routine to preserve code space.
2735 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2736 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2737 Added Curt McDowell's optimized checksumming routine for future
2738 inclusion. Need to create test case for unaliged, aligned, odd,
2739 even length combination of cases on various endianess machines.
2741 2005-12-09 Christiaan Simons
2742 * inet.c: Rewrote standard checksum routine in proper portable C.
2744 2005-11-25 Christiaan Simons
2745 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2746 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2747 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2749 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2750 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2751 routine by Peter Jolasson.
2752 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2754 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2755 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2756 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2758 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2759 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2761 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2762 * udp.c: UDP pcb->recv() was called even when it was NULL.
2766 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2767 * etharp.*: Disabled multiple packets on the ARP queue.
2768 This clashes with TCP queueing.
2770 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2771 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2772 Halved the ARP period, doubled the period counts.
2773 ETHARP_MAX_PENDING now should be at least 2. This prevents
2774 the counter from reaching 0 right away (which would allow
2775 too little time for ARP responses to be received).
2777 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2778 * dhcp.c: Decline messages were not multicast but unicast.
2779 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2780 Do not try hard to insert arbitrary packet's source address,
2781 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2782 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2783 querying an address will see it appear in the cache (DHCP could
2784 suffer from this when a server invalidly gave an in-use address.)
2785 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2786 comparing network addresses (identifiers), not the network masks
2788 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2789 IP address actually belongs to the network of the given interface.
2791 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2792 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2796 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2797 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2798 even if one is already pending, if the rcv_wnd is above a threshold
2799 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2800 delayed ACK in order to open the window if the stack is only receiving data.
2802 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2803 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2805 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2806 * etharp.c: Make sure the first pbuf queued on an ARP entry
2807 is properly ref counted.
2809 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2810 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2811 warnings about comparison.
2812 * pbuf.c: Stopped compiler complaining of empty if statement
2813 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2814 * tcp.c: Stopped compiler complaining of empty if statement
2815 when LWIP_DEBUGF() empty.
2816 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2817 * inet.c: Added a couple of casts to quiet the compiler.
2818 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2820 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2821 * inet.c: Made data types consistent in inet_ntoa().
2822 Added casts for return values of checksum routines, to pacify compiler.
2823 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2824 Small corrections to some debugging statements, to pacify compiler.
2826 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2827 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2828 * ethernetif.c Updated low_level_output() to match prototype for
2829 netif->linkoutput and changed low_level_input() similarly for consistency.
2830 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2831 of raw_recv() in raw.h and so avoid compiler error.
2832 * sockets.c: Added trivial (int) cast to keep compiler happier.
2833 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2839 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2840 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2841 your cc.h file defines this either 1 or 0. If non-defined,
2843 * .c: Added <string.h> and <errno.h> includes where used.
2844 * etharp.c: Made some array indices unsigned.
2846 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2847 * netif.*: Added netif_set_up()/down().
2848 * dhcp.c: Changes to restart program flow.
2850 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2851 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2852 single-pass lookup for different candidates. Should exploit locality.
2854 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2855 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2856 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2857 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2858 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2862 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2863 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2864 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2865 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2866 is to prefix the 14-bit Ethernet headers with two padding bytes.
2868 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2869 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2870 * etharp.c: Fixed the case where the packet that initiates the ARP request
2871 is not queued, and gets lost. Fixed the case where the packets destination
2872 address is already known; we now always queue the packet and perform an ARP
2879 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2880 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2881 * Fixed two possible NULL references in rare cases.
2887 * Fixed DHCP which did not include the IP address in DECLINE messages.
2891 * etharp.c has been hauled over a bit.
2897 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2898 * Packets sent from ARP queue had invalid source hardware address.
2902 * Pass-by ARP requests do now update the cache.
2906 * No longer dependent on ctype.h.
2907 * New socket options.
2908 * Raw IP pcb support.
2914 * Some debug formatters and casts fixed.
2915 * Numereous fixes in PPP.
2919 * DEBUGF now is LWIP_DEBUGF
2920 * pbuf_dechain() has been re-enabled.
2921 * Mentioned the changed use of CVS branches in README.
2927 * Fixed pool pbuf memory leak in pbuf_alloc().
2928 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2929 Reported by Savin Zlobec.
2931 * PBUF_POOL chains had their tot_len field not set for non-first
2932 pbufs. Fixed in pbuf_alloc().
2936 * Added PPP stack contributed by Marc Boucher
2940 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2942 * ARP queueuing now queues the latest packet instead of the first.
2943 This is the RFC recommended behaviour, but can be overridden in
2950 * TCP has been fixed to deal with the new use of the pbuf->ref
2953 * DHCP dhcp_inform() crash bug fixed.
2957 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2958 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2959 Implemented by David Haas.
2965 * The packet buffer implementation has been enhanced to support
2966 zero-copy and copy-on-demand for packet buffers which have their
2967 payloads in application-managed memory.
2968 Implemented by David Haas.
2970 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2971 if an outgoing packet can be directly sent on the link, or perform
2972 a copy-on-demand when necessary.
2974 The application can safely assume the packet is sent, and the RAM
2975 is available to the application directly after calling udp_send()
2976 or similar function.
2980 * ARP_QUEUEING should now correctly work for all cases, including
2982 Implemented by Leon Woestenberg.
2986 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2987 to a '0.0.0.0' IP address.
2989 * The packet buffer implementation is changed. The pbuf->ref counter
2990 meaning has changed, and several pbuf functions have been
2991 adapted accordingly.
2993 * netif drivers have to be changed to set the hardware address length field
2994 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2995 See the contrib/ports/c16x cs8900 driver as a driver example.
2997 * netif's have a dhcp field that must be initialized to NULL by the driver.
2998 See the contrib/ports/c16x cs8900 driver as a driver example.
3000 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3001 logged in CVS but have not been explained here.
3003 (0.5.3) Changes since version 0.5.2
3007 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3008 threads because it wasn't protected by semaphores.
3012 * struct ip_addr now packed.
3014 * The name of the time variable in arp.c has been changed to ctime
3015 to avoid conflicts with the time() function.
3017 (0.5.2) Changes since version 0.5.1
3021 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3025 * A bug in tcp_parseopt() could cause the stack to hang because of a
3026 malformed TCP option.
3028 * The address of new connections in the accept() function in the BSD
3029 socket library was not handled correctly.
3031 * pbuf_dechain() did not update the ->tot_len field of the tail.
3033 * Aborted TCP connections were not handled correctly in all
3038 * All protocol header structs are now packed.
3040 * The ->len field in the tcp_seg structure now counts the actual
3041 amount of data, and does not add one for SYN and FIN segments.
3043 (0.5.1) Changes since version 0.5.0
3047 * Possible to run as a user process under Linux.
3049 * Preliminary support for cross platform packed structs.
3051 * ARP timer now implemented.
3055 * TCP output queue length was badly initialized when opening
3058 * TCP delayed ACKs were not sent correctly.
3060 * Explicit initialization of BSS segment variables.
3062 * read() in BSD socket library could drop data.
3064 * Problems with memory alignment.
3066 * Situations when all TCP buffers were used could lead to
3069 * TCP MSS option wasn't parsed correctly.
3071 * Problems with UDP checksum calculation.
3073 * IP multicast address tests had endianess problems.
3075 * ARP requests had wrong destination hardware address.
3079 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3081 * A ->linkoutput() member was added to struct netif.
3083 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3085 * ntoh* macros are now null definitions for big endian CPUs.
3087 (0.5.0) Changes since version 0.4.2
3091 * Redesigned operating system emulation layer to make porting easier.
3093 * Better control over TCP output buffers.
3095 * Documenation added.
3099 * Locking issues in buffer management.
3101 * Bugfixes in the sequential API.
3103 * IP forwarding could cause memory leakage. This has been fixed.
3107 * Directory structure somewhat changed; the core/ tree has been
3110 (0.4.2) Changes since version 0.4.1
3114 * Experimental ARP implementation added.
3116 * Skeleton Ethernet driver added.
3118 * Experimental BSD socket API library added.
3122 * In very intense situations, memory leakage could occur. This has
3127 * Variables named "data" and "code" have been renamed in order to
3128 avoid name conflicts in certain compilers.
3130 * Variable++ have in appliciable cases been translated to ++variable
3131 since some compilers generate better code in the latter case.
3133 (0.4.1) Changes since version 0.4
3137 * TCP: Connection attempts time out earlier than data
3138 transmissions. Nagle algorithm implemented. Push flag set on the
3139 last segment in a burst.
3141 * UDP: experimental support for UDP-Lite extensions.
3145 * TCP: out of order segments were in some cases handled incorrectly,
3146 and this has now been fixed. Delayed acknowledgements was broken
3147 in 0.4, has now been fixed. Binding to an address that is in use
3148 now results in an error. Reset connections sometimes hung an
3149 application; this has been fixed.
3151 * Checksum calculation sometimes failed for chained pbufs with odd
3152 lengths. This has been fixed.
3154 * API: a lot of bug fixes in the API. The UDP API has been improved
3155 and tested. Error reporting and handling has been
3156 improved. Logical flaws and race conditions for incoming TCP
3157 connections has been found and removed.
3159 * Memory manager: alignment issues. Reallocating memory sometimes
3160 failed, this has been fixed.
3162 * Generic library: bcopy was flawed and has been fixed.
3166 * API: all datatypes has been changed from generic ones such as
3167 ints, to specified ones such as u16_t. Functions that return
3168 errors now have the correct type (err_t).
3170 * General: A lot of code cleaned up and debugging code removed. Many
3171 portability issues have been fixed.
3173 * The license was changed; the advertising clause was removed.
3177 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3178 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3181 (0.4) Changes since version 0.3.1
3183 * Memory management has been radically changed; instead of
3184 allocating memory from a shared heap, memory for objects that are
3185 rapidly allocated and deallocated is now kept in pools. Allocation
3186 and deallocation from those memory pools is very fast. The shared
3187 heap is still present but is used less frequently.
3189 * The memory, memory pool, and packet buffer subsystems now support
3190 4-, 2-, or 1-byte alignment.
3192 * "Out of memory" situations are handled in a more robust way.
3194 * Stack usage has been reduced.
3196 * Easier configuration of lwIP parameters such as memory usage,
3197 TTLs, statistics gathering, etc. All configuration parameters are
3198 now kept in a single header file "lwipopts.h".
3200 * The directory structure has been changed slightly so that all
3201 architecture specific files are kept under the src/arch
3204 * Error propagation has been improved, both in the protocol modules
3207 * The code for the RTXC architecture has been implemented, tested
3210 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3211 the Internet checksum modules.
3213 * Bugs related to porting between a 32-bit and a 16-bit architecture
3214 have been found and corrected.
3216 * The license has been changed slightly to conform more with the
3217 original BSD license, including the advertisement clause.
3219 (0.3.1) Changes since version 0.3
3221 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3222 RAM never returned the RAM when the pbuf was deallocated.
3224 * TCP congestion control, window updates and retransmissions did not
3225 work correctly. This has now been fixed.
3227 * Bugfixes in the API.
3229 (0.3) Changes since version 0.2
3231 * New and improved directory structure. All include files are now
3232 kept in a dedicated include/ directory.
3234 * The API now has proper error handling. A new function,
3235 netconn_err(), now returns an error code for the connection in
3238 * Improvements in the memory management subsystem. The system now
3239 keeps a pointer to the lowest free memory block. A new function,
3240 mem_malloc2() tries to allocate memory once, and if it fails tries
3241 to free some memory and retry the allocation.
3243 * Much testing has been done with limited memory
3244 configurations. lwIP now does a better job when overloaded.
3246 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3248 * Many bugfixes in the TCP code:
3250 - Fixed a bug in tcp_close().
3252 - The TCP receive window was incorrectly closed when out of
3253 sequence segments was received. This has been fixed.
3255 - Connections are now timed-out of the FIN-WAIT-2 state.
3257 - The initial congestion window could in some cases be too
3258 large. This has been fixed.
3260 - The retransmission queue could in some cases be screwed up. This
3263 - TCP RST flag now handled correctly.
3265 - Out of sequence data was in some cases never delivered to the
3266 application. This has been fixed.
3268 - Retransmitted segments now contain the correct acknowledgment
3269 number and advertised window.
3271 - TCP retransmission timeout backoffs are not correctly computed
3272 (ala BSD). After a number of retransmissions, TCP now gives up
3275 * TCP connections now are kept on three lists, one for active
3276 connections, one for listening connections, and one for
3277 connections that are in TIME-WAIT. This greatly speeds up the fast
3278 timeout processing for sending delayed ACKs.
3280 * TCP now provides proper feedback to the application when a
3281 connection has been successfully set up.
3283 * More comments have been added to the code. The code has also been
3284 somewhat cleaned up.
3286 (0.2) Initial public release.