3 * TODO: The lwIP source code makes some invalid assumptions on processor
4 word-length, storage sizes and alignment. See the mailing lists for
5 problems with exoteric (/DSP) architectures showing these problems.
6 We still have to fix some of these issues neatly.
8 * TODO: the PPP code is broken in a few ways. There are namespace
9 collisions on BSD systems and many assumptions on word-length
10 (sizeof(int)). In ppp.c an assumption is made on the availability of
11 a thread subsystem. Either PPP needs to be moved to contrib/ports/???
12 or rearranged to be more generic.
18 * [Enter new changes just after this line - do not remove this line]
22 2007-10-06 Simon Goldschmidt
23 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
24 to enqueue the received pbufs so that multiple packets can be reassembled
25 simultaneously and no static reassembly buffer is needed.
27 2007-10-05 Simon Goldschmidt
28 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
29 all netifs (or ports) can use it.
31 2007-10-05 Frédéric Bernon
32 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
33 common function to reduce a little bit the footprint (for all functions using
34 only the "netif" parameter).
36 2007-10-03 Frédéric Bernon
37 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
38 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
39 a little bit the footprint (for all functions using only the "netif" parameter).
41 2007-09-15 Frédéric Bernon
42 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
43 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
44 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
45 IP_MULTICAST_TTL and IP_MULTICAST_IF.
47 2007-09-10 Frédéric Bernon
48 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
49 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
50 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
51 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
52 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
53 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
54 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
55 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
56 when it's queried (any direct call to "sysuptime" is changed by a call to
59 2007-09-09 Frédéric Bernon, Bill Florac
60 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
61 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
62 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
63 igmp_report_groups() is now called inside netif_set_link_up() (need to have
64 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
65 the next query message to receive the matching multicast streams).
67 2007-09-08 Frédéric Bernon
68 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
69 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
70 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
71 Enable to access to these fields with LWIP_TCP=0.
73 2007-09-05 Frédéric Bernon
74 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
75 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
76 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
77 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
78 help to reduce footprint, and to reduce "visibility" on the Internet.
80 2007-09-05 Frédéric Bernon, Bill Florac
81 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
82 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
83 parameters have to be provided: a task name, and a task stack size. For this
84 one, since it's platform dependant, you could define the best one for you in
85 your lwipopts.h. For port maintainers, you can just add these new parameters
86 in your sys_arch.c file, and but it's not mandatory, use them in your OS
89 2007-09-05 Frédéric Bernon
90 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
91 inside init.c for task #7142 "Sanity check user-configurable values".
93 2007-09-04 Frédéric Bernon, Bill Florac
94 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
95 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
96 value). It will avoid potential fragmentation problems, use a counter to know
97 how many times a group is used on an netif, and free it when all applications
98 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
99 check if LWIP_IGMP!=0).
101 2007-09-03 Frédéric Bernon
102 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
103 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
104 the netif's "init" function). Use the "imr_interface" field (for socket layer)
105 and/or the "interface" field (for netconn layer), for join/leave operations.
106 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
107 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
109 2007-08-30 Frédéric Bernon
110 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
111 from api/api_lib". Now netbuf API is independant of netconn, and can be used
112 with other API (application based on raw API, or future "socket2" API). Ports
113 maintainers just have to add src/api/netbuf.c in their makefile/projects.
115 2007-08-30 Frédéric Bernon, Jonathan Larmour
116 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
117 user-configurable values".
119 2007-08-29 Frédéric Bernon
120 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
121 igmp_start is call inside netif_add. Now, igmp initialization is in the same
122 spirit than the others modules. Modify some IGMP debug traces.
124 2007-08-29 Frédéric Bernon
125 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
126 Add lwip_init function to regroup all modules initializations, and to provide
127 a place to add code for task #7142 "Sanity check user-configurable values".
128 Ports maintainers should remove direct initializations calls from their code,
129 and add init.c in their makefiles. Note that lwip_init() function is called
130 inside tcpip_init, but can also be used by raw api users since all calls are
131 disabled when matching options are disabled. Also note that their is new options
132 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
134 2007-08-26 Marc Boucher
135 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
136 since they can under certain circumstances be called with an invalid conn
137 pointer after the connection has been closed (and conn has been freed).
139 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
140 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
141 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
143 2007-08-22 Frédéric Bernon
144 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
145 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
147 2007-08-22 Frédéric Bernon
148 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
149 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
150 name is tcpip_input (we keep the name of 1.2.0 function).
152 2007-08-17 Jared Grubb
153 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
154 settings into new memp_std.h and optional user file lwippools.h. This adds
155 more dynamic mempools, and allows the user to create an arbitrary number of
156 mempools for mem_malloc.
158 2007-08-16 Marc Boucher
159 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
160 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
161 close the connection.
163 2007-08-16 Marc Boucher
164 * sockets.c: lwip_accept(): check netconn_peer() error return.
166 2007-08-16 Marc Boucher
167 * mem.c, mem.h: Added mem_calloc().
169 2007-08-16 Marc Boucher
170 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
171 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
172 and starving other message types.
173 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
175 2007-08-16 Marc Boucher
176 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
177 type and flgs (later renamed to flags).
178 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
179 Improved lwip_recvfrom(). TCP push now propagated.
181 2007-08-16 Marc Boucher
182 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
185 2007-08-16 Marc Boucher
186 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
187 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
188 Added PPPoE support and various PPP improvements.
190 2007-07-25 Simon Goldschmidt
191 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
192 making netbuf_copy_partial use this function.
194 2007-07-25 Simon Goldschmidt
195 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
196 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
199 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
200 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
201 a link callback in the netif struct, and functions to handle it. Be carefull
202 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
203 if you want to be sure to be compatible with future changes...
205 2007-06-30 Frédéric Bernon
206 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
208 2007-06-21 Simon Goldschmidt
209 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
210 LWIP_AUTOIP =0 and =1 to remove redundant code.
212 2007-06-21 Simon Goldschmidt
213 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
214 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
215 heap. This both prevents memory fragmentation and gives a higher speed
216 at the cost of more memory consumption. Turned off by default.
218 2007-06-21 Simon Goldschmidt
219 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
220 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
221 int to be able to send a bigger buffer than 64K with one time (mainly
222 used from lwip_send).
224 2007-06-21 Simon Goldschmidt
225 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
226 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
228 2007-06-21 Simon Goldschmidt
229 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
230 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
231 changes on low memory or empty send-buffer.
233 2007-06-18 Simon Goldschmidt
234 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
235 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
236 used for ethernet and struct eth_addr already had a defined length of 6).
238 2007-06-17 Simon Goldschmidt
239 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
240 to disable UDP checksum generation on transmit.
242 2007-06-13 Frédéric Bernon, Simon Goldschmidt
243 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
244 pointers or parameters, and let the possibility to redefined it in cc.h. Use
245 this macro to check "conn" parameter in api_msg.c functions.
247 2007-06-11 Simon Goldschmidt
248 * sockets.c, sockets.h: Added UDP lite support for sockets
250 2007-06-10 Simon Goldschmidt
251 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
252 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
255 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
256 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
257 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
258 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
259 (see TODO mark in the source code).
261 2007-06-09 Simon Goldschmidt
262 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
263 etharp_output() to match netif->output so etharp_output() can be used
264 directly as netif->output to save one function call.
266 2007-06-08 Simon Goldschmidt
267 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
268 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
269 added initialization of those to ethernetif, slipif and loopif.
271 2007-05-18 Simon Goldschmidt
272 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
273 (defaulting to off for now) that can be set to 0 to send fragmented
274 packets by passing PBUF_REFs down the stack.
276 2007-05-23 Frédéric Bernon
277 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
278 connections, such present in patch #5959.
280 2007-05-23 Frédéric Bernon
281 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
282 code in only one part...
284 2007-05-18 Simon Goldschmidt
285 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
286 elements to overflow. This is achieved by adding some bytes before and after
287 each pool element (increasing their size, of course), filling them with a
288 prominent value and checking them on freeing the element.
289 Set it to 2 to also check every element in every pool each time memp_malloc()
290 or memp_free() is called (slower but more helpful).
292 2007-05-10 Simon Goldschmidt
293 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
294 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
297 2007-05-11 Frédéric Bernon
298 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
299 Include a function pointer instead of a table index in the message to reduce
300 footprint. Disable some part of lwip_send and lwip_sendto if some options are
301 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
303 2007-05-10 Simon Goldschmidt
304 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
305 \ extern "C" {' in all header files. Now you can write your application using
306 the lwIP stack in C++ and simply #include the core files. Note I have left
307 out the netif/ppp/*h header files for now, since I don't know which files are
308 included by applications and which are for internal use only.
310 2007-05-09 Simon Goldschmidt
311 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
312 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
313 situations where some compilers might inline the copy and save a function
314 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
316 2007-05-08 Simon Goldschmidt
317 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
318 to be overriden in case the C-library malloc implementation is not protected
319 against concurrent access.
321 2007-05-04 Simon Goldschmidt (Atte Kojo)
322 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
323 multiple packets to the same host.
325 2007-05-04 Frédéric Bernon, Jonathan Larmour
326 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
327 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
328 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
329 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
330 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
331 these fields are now renamed "addr" & "port".
333 2007-04-11 Jonathan Larmour
334 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
335 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
336 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
337 by the port in sys_arch.h if desired.
339 2007-04-06 Frédéric Bernon, Simon Goldschmidt
340 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
341 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
342 clients, using new functions from netifapi.h. Disable as default (no port change to do).
344 2007-04-05 Frédéric Bernon
345 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
347 2007-04-04 Simon Goldschmidt
348 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
349 use this for and architecture-independent form to tell the compiler you intentionally
350 are not using this variable. Can be overriden in cc.h.
352 2007-03-28 Frédéric Bernon
353 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
354 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
355 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
356 It will be used by DHCP to register a client hostname, but can also be use when you call
359 2007-03-28 Frédéric Bernon
360 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
361 initialize a network interface's flag with. It tell this interface is an ethernet
362 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
363 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
365 2007-03-26 Frédéric Bernon, Jonathan Larmour
366 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
367 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
368 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
369 is done in tcpip_init function.
371 2007-03-22 Frédéric Bernon
372 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
373 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
374 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
375 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
376 but never used. Fix msg_in.c with the correct #if test for a stat display.
378 2007-03-21 Kieran Mansley
379 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
380 Provides callback on netif up/down state change.
382 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
383 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
384 ip.c, netif.h, tcpip.c, opt.h:
385 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
386 filter per all network interfaces. Declare a new function in netif to enable to
387 control the MAC filter (to reduce lwIP traffic processing).
389 2007-03-11 Frédéric Bernon
390 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
391 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
392 unless you know what you're doing (default are RFC1122 compliant). Note
393 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
395 2007-03-08 Frédéric Bernon
396 * tcp.h: Keepalive values can be configured at compile time, but don't change
397 this unless you know what you're doing (default are RFC1122 compliant).
399 2007-03-08 Frédéric Bernon
400 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
401 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
402 on UDP sockets/netconn.
404 2007-03-08 Simon Goldschmidt
405 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
407 2007-03-06 Frédéric Bernon
408 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
409 Implement SO_RCVTIMEO on UDP sockets/netconn.
411 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
412 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
413 on the stack and remove the API msg type from memp
415 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
416 * sockets.h, sockets.c: Move socket initialization to new
417 lwip_socket_init() function.
418 NOTE: this changes the API with ports. Ports will have to be
419 updated to call lwip_socket_init() now.
421 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
422 * api_lib.c: Use memcpy in netbuf_copy_partial.
427 2007-10-09 Simon Goldschmidt
428 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
429 short and also was generated wrong if checksum coverage != tot_len;
430 receive: checksum was calculated wrong if checksum coverage != tot_len
432 2007-10-08 Simon Goldschmidt
433 * mem.c: lfree was not updated in mem_realloc!
435 2007-10-07 Frédéric Bernon
436 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
437 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
438 this change cause an API breakage for netconn_addr, since a parameter
439 type change. Any compiler should cause an error without any changes in
440 yours netconn_peer calls (so, it can't be a "silent change"). It also
441 reduce a little bit the footprint for socket layer (lwip_getpeername &
442 lwip_getsockname use now a common lwip_getaddrname function since
443 netconn_peer & netconn_addr have the same parameters).
445 2007-09-20 Simon Goldschmidt
446 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
447 by checking tcp_tw_pcbs also
449 2007-09-19 Simon Goldschmidt
450 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
452 2007-09-15 Mike Kleshov
453 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
455 2007-09-06 Frédéric Bernon
456 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
457 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
458 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
459 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
461 2007-08-30 Frédéric Bernon
462 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
463 and fix some coding style.
465 2007-08-28 Frédéric Bernon
466 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
467 kind of packets. These packets are considered like Ethernet packets (payload
468 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
469 are considered like IP packets (payload pointing to iphdr).
471 2007-08-27 Frédéric Bernon
472 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
473 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
474 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
476 2007-08-24 Kieran Mansley
477 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
478 compiler (Paradigm C++)
480 2007-08-09 Frédéric Bernon, Bill Florac
481 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
482 Introduce IGMP_STATS to centralize statistics management.
484 2007-08-09 Frédéric Bernon, Bill Florac
485 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
486 packet on a udp pcb binded on an netif's IP address, and not on "any".
488 2007-08-09 Frédéric Bernon, Bill Florac
489 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
490 This is mainly on using lookup/lookfor, and some coding styles...
492 2007-07-26 Frédéric Bernon (and "thedoctor")
493 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
495 2007-07-25 Simon Goldschmidt
496 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
497 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
498 (tcp_output is called again later from tcp timers).
500 2007-07-25 Simon Goldschmidt
501 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
502 copy_from_pbuf, which illegally modified the given pbuf.
504 2007-07-25 Simon Goldschmidt
505 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
506 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
508 2007-07-24 Simon Goldschmidt
509 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
510 correct state (must be CLOSED).
512 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
513 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
514 allocation. It now returns NULL.
516 2007-07-13 Frédéric Bernon
517 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
520 2007-07-13 Frédéric Bernon
521 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
522 because current code doesn't follow rawapi.txt documentation.
524 2007-07-13 Kieran Mansley
525 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
526 out of sequence processing of received packets
528 2007-07-03 Simon Goldschmidt
529 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
530 assumption is made that this pbuf is in one piece (i.e. not chained). These
531 assumptions clash with the possibility of converting to fully pool-based
532 pbuf implementations, where PBUF_RAM pbufs might be chained.
534 2007-07-03 Simon Goldschmidt
535 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
536 when closing tcp netconns: removed conn->sem, less context switches when
537 closing, both netconn_close and netconn_delete should safely close tcp
540 2007-07-02 Simon Goldschmidt
541 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
542 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
543 to cache ARP table indices with each pcb instead of single-entry cache for
546 2007-07-02 Simon Goldschmidt
547 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
548 warnings when assigning to smaller types.
550 2007-06-28 Simon Goldschmidt
551 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
553 2007-06-28 Simon Goldschmidt
554 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
555 a segment contained chained pbufs)
557 2007-06-28 Frédéric Bernon
558 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
559 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
560 possible to define this macro in your own lwipopts.h to always use C library's
561 rand(). Note that autoip_create_rand_addr doesn't use this macro.
563 2007-06-28 Frédéric Bernon
564 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
565 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
566 in api_lib/api_msg (use pointers and not type with table, etc...)
568 2007-06-26 Simon Goldschmidt
569 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
571 2007-06-25 Simon Goldschmidt
572 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
573 for udp packets with no matching pcb.
575 2007-06-25 Simon Goldschmidt
576 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
577 could get udp input packets if the remote side matched.
579 2007-06-13 Simon Goldschmidt
580 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
581 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
583 2007-06-13 Simon Goldschmidt
584 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
585 -> netconn_new_..() does not allocate a new connection for unsupported
588 2007-06-13 Frédéric Bernon, Simon Goldschmidt
589 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
590 conn->err was reset to ERR_OK without any reasons (and error was lost)...
592 2007-06-13 Frédéric Bernon, Matthias Weisser
593 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
594 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
595 some macro names collision with some OS macros.
597 2007-06-11 Simon Goldschmidt
598 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
599 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
600 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
603 2007-06-11 Srinivas Gollakota & Oleg Tyshev
604 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
605 where TCP flags wasn't initialized in tcp_keepalive.
607 2007-06-03 Simon Goldschmidt
608 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
609 registered, p->payload was modified without modifying p->len if sending
610 icmp_dest_unreach() (had no negative effect but was definitively wrong).
612 2007-06-03 Simon Goldschmidt
613 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
614 re-used the input pbuf even if that didn't have enough space to include the
615 link headers. Now the space is tested and a new pbuf is allocated for the
616 echo response packet if the echo request pbuf isn't big enough.
618 2007-06-01 Simon Goldschmidt
619 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
621 2007-05-23 Frédéric Bernon
622 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
623 allocated by do_listen if success) and netconn_accept errors handling. In
624 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
625 by ASSERT, except for netconn_delete.
627 2007-05-23 Frédéric Bernon
628 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
629 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
630 directly close the recvmbox).
632 2007-05-22 Simon Goldschmidt
633 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
634 bound but unconnected (and non-listening) tcp_pcbs.
636 2007-05-22 Frédéric Bernon
637 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
638 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
639 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
640 like "sys_timeout" in their application threads.
642 2007-05-22 Frédéric Bernon
643 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
644 which parameters are used by which do_xxx function, and to avoid "misusing"
645 parameters (patch #5938).
647 2007-05-22 Simon Goldschmidt
648 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
649 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
650 is only 8 bits wide. This affects the api, as there, the protocol was
653 2007-05-18 Simon Goldschmidt
654 * memp.c: addition to patch #5913: smaller pointer was returned but
655 memp_memory was the same size -> did not save memory.
657 2007-05-16 Simon Goldschmidt
658 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
661 2007-05-16 Simon Goldschmidt
662 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
663 as the one of the netif used for sending to prevent sending from old
664 addresses after a netif address gets changed (partly fixes bug #3168).
666 2007-05-16 Frédéric Bernon
667 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
668 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
669 tcpip_init) because we have to be sure that network interfaces are already
670 added (mac filter is updated only in igmp_init for the moment).
672 2007-05-16 Simon Goldschmidt
673 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
674 into sys_arch_sem_wait calls to prevent timers from running while waiting
675 for the heap. This fixes bug #19167.
677 2007-05-13 Simon Goldschmidt
678 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
679 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
682 2007-05-07 Simon Goldschmidt
683 * mem.c: Another attempt to fix bug #17922.
685 2007-05-04 Simon Goldschmidt
686 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
687 implementation so that it can be reused (don't allocate the target
688 pbuf inside pbuf_copy()).
690 2007-05-04 Simon Goldschmidt
691 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
692 to save a little RAM (next pointer of memp is not used while not in pool).
695 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
698 2007-04-23 Simon Goldschmidt
699 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
700 in NULL reference for incoming TCP packets". Loopif has to be configured
701 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
702 (multithreading environments, e.g. netif->input() = tcpip_input()) or
703 putting packets on a list that is fed to the stack by calling loopif_poll()
704 (single-thread / NO_SYS / polling environment where e.g.
705 netif->input() = ip_input).
707 2007-04-17 Jonathan Larmour
708 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
709 the difference between two u16_t's.
710 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
711 MEMP_NUM_NETCONN in sockets.c right now.
713 2007-04-12 Jonathan Larmour
714 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
716 2007-04-12 Kieran Mansley
717 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
718 timer is reset to fix bug#19434, with help from Oleg Tyshev.
720 2007-04-11 Simon Goldschmidt
721 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
722 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
723 pbuf.c: removed functions no needed any more (by etharp).
725 2007-04-11 Kieran Mansley
726 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
727 "Constant is long" warnings with 16bit compilers. Contributed by
728 avatar@mmlab.cse.yzu.edu.tw
730 2007-04-05 Frédéric Bernon, Jonathan Larmour
731 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
732 the mailbox is active". Now, the post is only done during a connect, and do_send,
733 do_write and do_join_leave_group don't do anything if a previous error was signaled.
735 2007-04-03 Frédéric Bernon
736 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
737 packets. See patch #5834.
739 2007-03-30 Frédéric Bernon
740 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
741 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
743 2007-03-30 Frédéric Bernon
744 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
745 others environment defines (these were too "generic").
747 2007-03-28 Frédéric Bernon
748 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
749 result and can cause a crash. lwip_send now check netbuf_ref result.
751 2007-03-28 Simon Goldschmidt
752 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
753 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
754 defined. This is the way it should have been already (looking at
757 2007-03-28 Kieran Mansley
758 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
759 IP and TCP headers *and* physical link headers
761 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
762 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
763 to send some garbage. It is not a definitive solution, but the patch does solve
764 the problem for most cases.
766 2007-03-22 Frédéric Bernon
767 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
769 2007-03-22 Frédéric Bernon
770 * api_lib.c: somes resources couldn't be freed if there was errors during
771 netconn_new_with_proto_and_callback.
773 2007-03-22 Frédéric Bernon
774 * ethernetif.c: update netif->input calls to check return value. In older ports,
775 it's a good idea to upgrade them, even if before, there could be another problem
776 (access to an uninitialized mailbox).
778 2007-03-21 Simon Goldschmidt
779 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
780 by casting to unsigned).
782 2007-03-21 Frédéric Bernon
783 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
784 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
785 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
786 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
787 faster and more reliable communication between api_lib and tcpip.
789 2007-03-21 Frédéric Bernon
790 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
792 2007-03-21 Frédéric Bernon
793 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
795 2007-03-21 Kieran Mansley
796 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
799 2007-03-21 Kieran Mansley
800 * Fix all uses of pbuf_header to check the return value. In some
801 cases just assert if it fails as I'm not sure how to fix them, but
802 this is no worse than before when they would carry on regardless
805 2007-03-21 Kieran Mansley
806 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
807 comment out missing header include in icmp.c
809 2007-03-20 Frédéric Bernon
810 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
811 synchronized with memp.h.
813 2007-03-20 Frédéric Bernon
814 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
815 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
816 network interfaces. Also fix a compiler warning.
818 2007-03-20 Kieran Mansley
819 * udp.c: Only try and use pbuf_header() to make space for headers if
820 not a ROM or REF pbuf.
822 2007-03-19 Frédéric Bernon
823 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
826 2007-03-19 Frédéric Bernon
827 * Remove unimplemented "memp_realloc" function from memp.h.
829 2007-03-11 Simon Goldschmidt
830 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
833 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
834 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
835 (missing `const' qualifier in socket functions), to get more compatible to
836 standard POSIX sockets.
838 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
839 * sockets.c: Add asserts inside bind, connect and sendto to check input
840 parameters. Remove excessive set_errno() calls after get_socket(), because
841 errno is set inside of get_socket(). Move last sock_set_errno() inside
844 2007-03-09 Simon Goldschmidt
845 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
846 was allocated too small.
848 2007-03-06 Simon Goldschmidt
849 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
850 the stack from concurrent access.
852 2007-03-06 Frédéric Bernon, Dmitry Potapov
853 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
854 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
856 2007-03-06 Simon Goldschmidt
857 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
858 if IP_FRAG == 0 and IP_REASSEMBLY == 0
860 2007-03-06 Frédéric Bernon, Simon Goldschmidt
861 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
862 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
863 Allow to do ARP processing for incoming packets inside tcpip_thread
864 (protecting ARP layer against concurrent access). You can also disable
865 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
866 Older ports have to use tcpip_ethinput.
868 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
869 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
870 from pointer target type"
872 2007-03-05 Frédéric Bernon
873 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
874 ETHARP_TRUST_IP_MAC, review SO_REUSE)
876 2007-03-04 Frédéric Bernon
877 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
880 2007-03-04 Frédéric Bernon
881 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
883 The api_msg struct stay on the stack (not moved to netconn struct).
885 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
886 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
887 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
888 Also fixed cast warning in pbuf_alloc()
890 2007-03-04 Simon Goldschmidt
891 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
892 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
894 2007-03-03 Frédéric Bernon
895 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
896 It is static, and never used in udp.c except udp_init().
898 2007-03-02 Simon Goldschmidt
899 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
900 tcpip_thread() to tcpip_init(). This way, raw API connections can be
901 initialized before tcpip_thread is running (e.g. before OS is started)
903 2007-03-02 Frédéric Bernon
904 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
907 2007-02-28 Kieran Mansley
908 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
909 outside the region of the pbuf by pbuf_header()
911 2007-02-28 Kieran Mansley
912 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
913 when supplied timeout is also non-zero
917 2006-12-05 Leon Woestenberg
918 * CHANGELOG: Mention STABLE-1.2.0 release.
922 2006-12-01 Christiaan Simons
923 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
924 Note this is a workaround. Currently I have no other options left.
926 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
927 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
928 to include/lwip/opt.h.
929 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
930 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
931 * opt.h: Add above new options.
933 2006-08-18 Christiaan Simons
934 * tcp_{in,out}.c: added SNMP counters.
935 * ipv4/ip.c: added SNMP counters.
936 * ipv4/ip_frag.c: added SNMP counters.
938 2006-08-08 Christiaan Simons
939 * etharp.{c,h}: added etharp_find_addr() to read
940 (stable) ethernet/IP address pair from ARP table
942 2006-07-14 Christiaan Simons
943 * mib_structs.c: added
944 * include/lwip/snmp_structs.h: added
945 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
947 2006-07-06 Christiaan Simons
948 * snmp/asn1_{enc,dec}.c added
950 * snmp/msg_{in,out}.c added
951 * include/lwip/snmp_asn1.h added
952 * include/lwip/snmp_msg.h added
953 * doc/snmp_agent.txt added
955 2006-03-29 Christiaan Simons
956 * inet.c, inet.h: Added platform byteswap support.
957 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
958 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
962 2006-11-30 Christiaan Simons
963 * dhcp.c: Fixed false triggers of request_timeout.
965 2006-11-28 Christiaan Simons
966 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
968 2006-10-11 Christiaan Simons
969 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
970 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
971 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
972 identifier from 170 to 136 (bug #17574).
974 2006-10-10 Christiaan Simons
975 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
977 2006-08-17 Christiaan Simons
978 * udp.c: Fixed bug #17200, added check for broadcast
979 destinations for PCBs bound to a unicast address.
981 2006-08-07 Christiaan Simons
982 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
984 2006-06-27 Christiaan Simons
985 * api_msg.c: Applied patch for cold case (bug #11135).
986 In accept_function() ensure newconn->callback is always initialized.
988 2006-06-15 Christiaan Simons
989 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
990 facilitate printing of mem_size_t and u16_t statistics.
992 2006-06-14 Christiaan Simons
993 * api_msg.c: Applied patch #5146 to handle allocation failures
994 in accept() by Kevin Lawson.
996 2006-05-26 Christiaan Simons
997 * api_lib.c: Removed conn->sem creation and destruction
998 from netconn_write() and added sys_sem_new to netconn_new_*.
1002 2006-03-03 Christiaan Simons
1003 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
1004 access and added pbuf_alloc() return value checks.
1006 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
1007 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
1008 now handled by the checksum routine properly.
1010 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
1011 * pbuf.c: Fix alignment; pbuf_init() would not work unless
1012 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
1014 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
1015 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
1016 submitted by Mitrani Hiroshi.
1018 2005-12-15 Christiaan Simons
1019 * inet.c: Disabled the added summing routine to preserve code space.
1021 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
1022 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
1023 Added Curt McDowell's optimized checksumming routine for future
1024 inclusion. Need to create test case for unaliged, aligned, odd,
1025 even length combination of cases on various endianess machines.
1027 2005-12-09 Christiaan Simons
1028 * inet.c: Rewrote standard checksum routine in proper portable C.
1030 2005-11-25 Christiaan Simons
1031 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
1032 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
1033 u32_t, s32_t typedefs. This solves most debug word-length assumes.
1035 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
1036 * inet.c: Fixed unaligned 16-bit access in the standard checksum
1037 routine by Peter Jolasson.
1038 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
1040 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
1041 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
1042 * tcp_{out|in}.c: Applied patch fixing unaligned access.
1044 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
1045 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
1047 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
1048 * udp.c: UDP pcb->recv() was called even when it was NULL.
1052 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
1053 * etharp.*: Disabled multiple packets on the ARP queue.
1054 This clashes with TCP queueing.
1056 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
1057 * etharp.*: Fixed race condition from ARP request to ARP timeout.
1058 Halved the ARP period, doubled the period counts.
1059 ETHARP_MAX_PENDING now should be at least 2. This prevents
1060 the counter from reaching 0 right away (which would allow
1061 too little time for ARP responses to be received).
1063 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
1064 * dhcp.c: Decline messages were not multicast but unicast.
1065 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
1066 Do not try hard to insert arbitrary packet's source address,
1067 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
1068 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
1069 querying an address will see it appear in the cache (DHCP could
1070 suffer from this when a server invalidly gave an in-use address.)
1071 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
1072 comparing network addresses (identifiers), not the network masks
1074 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
1075 IP address actually belongs to the network of the given interface.
1077 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
1078 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
1082 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
1083 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
1084 even if one is already pending, if the rcv_wnd is above a threshold
1085 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
1086 delayed ACK in order to open the window if the stack is only receiving data.
1088 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
1089 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
1091 2004-08-20 Tony Mountifield <tony@softins.co.uk>
1092 * etharp.c: Make sure the first pbuf queued on an ARP entry
1093 is properly ref counted.
1095 2004-07-27 Tony Mountifield <tony@softins.co.uk>
1096 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
1097 warnings about comparison.
1098 * pbuf.c: Stopped compiler complaining of empty if statement
1099 when LWIP_DEBUGF() empty. Closed an unclosed comment.
1100 * tcp.c: Stopped compiler complaining of empty if statement
1101 when LWIP_DEBUGF() empty.
1102 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
1103 * inet.c: Added a couple of casts to quiet the compiler.
1104 No need to test isascii(c) before isdigit(c) or isxdigit(c).
1106 2004-07-22 Tony Mountifield <tony@softins.co.uk>
1107 * inet.c: Made data types consistent in inet_ntoa().
1108 Added casts for return values of checksum routines, to pacify compiler.
1109 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
1110 Small corrections to some debugging statements, to pacify compiler.
1112 2004-07-21 Tony Mountifield <tony@softins.co.uk>
1113 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
1114 * ethernetif.c Updated low_level_output() to match prototype for
1115 netif->linkoutput and changed low_level_input() similarly for consistency.
1116 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
1117 of raw_recv() in raw.h and so avoid compiler error.
1118 * sockets.c: Added trivial (int) cast to keep compiler happier.
1119 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
1125 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
1126 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
1127 your cc.h file defines this either 1 or 0. If non-defined,
1129 * .c: Added <string.h> and <errno.h> includes where used.
1130 * etharp.c: Made some array indices unsigned.
1132 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
1133 * netif.*: Added netif_set_up()/down().
1134 * dhcp.c: Changes to restart program flow.
1136 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
1137 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
1138 single-pass lookup for different candidates. Should exploit locality.
1140 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
1141 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
1142 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
1143 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
1144 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
1148 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
1149 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
1150 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
1151 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
1152 is to prefix the 14-bit Ethernet headers with two padding bytes.
1154 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
1155 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
1156 * etharp.c: Fixed the case where the packet that initiates the ARP request
1157 is not queued, and gets lost. Fixed the case where the packets destination
1158 address is already known; we now always queue the packet and perform an ARP
1165 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
1166 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
1167 * Fixed two possible NULL references in rare cases.
1173 * Fixed DHCP which did not include the IP address in DECLINE messages.
1177 * etharp.c has been hauled over a bit.
1183 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
1184 * Packets sent from ARP queue had invalid source hardware address.
1188 * Pass-by ARP requests do now update the cache.
1192 * No longer dependent on ctype.h.
1193 * New socket options.
1194 * Raw IP pcb support.
1200 * Some debug formatters and casts fixed.
1201 * Numereous fixes in PPP.
1205 * DEBUGF now is LWIP_DEBUGF
1206 * pbuf_dechain() has been re-enabled.
1207 * Mentioned the changed use of CVS branches in README.
1213 * Fixed pool pbuf memory leak in pbuf_alloc().
1214 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
1215 Reported by Savin Zlobec.
1217 * PBUF_POOL chains had their tot_len field not set for non-first
1218 pbufs. Fixed in pbuf_alloc().
1222 * Added PPP stack contributed by Marc Boucher
1226 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
1228 * ARP queueuing now queues the latest packet instead of the first.
1229 This is the RFC recommended behaviour, but can be overridden in
1236 * TCP has been fixed to deal with the new use of the pbuf->ref
1239 * DHCP dhcp_inform() crash bug fixed.
1243 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
1244 pbuf_refresh(). This has sped up pbuf pool operations considerably.
1245 Implemented by David Haas.
1251 * The packet buffer implementation has been enhanced to support
1252 zero-copy and copy-on-demand for packet buffers which have their
1253 payloads in application-managed memory.
1254 Implemented by David Haas.
1256 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
1257 if an outgoing packet can be directly sent on the link, or perform
1258 a copy-on-demand when necessary.
1260 The application can safely assume the packet is sent, and the RAM
1261 is available to the application directly after calling udp_send()
1262 or similar function.
1266 * ARP_QUEUEING should now correctly work for all cases, including
1268 Implemented by Leon Woestenberg.
1272 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
1273 to a '0.0.0.0' IP address.
1275 * The packet buffer implementation is changed. The pbuf->ref counter
1276 meaning has changed, and several pbuf functions have been
1277 adapted accordingly.
1279 * netif drivers have to be changed to set the hardware address length field
1280 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
1281 See the contrib/ports/c16x cs8900 driver as a driver example.
1283 * netif's have a dhcp field that must be initialized to NULL by the driver.
1284 See the contrib/ports/c16x cs8900 driver as a driver example.
1286 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
1287 logged in CVS but have not been explained here.
1289 (0.5.3) Changes since version 0.5.2
1293 * memp_malloc(MEMP_API_MSG) could fail with multiple application
1294 threads because it wasn't protected by semaphores.
1298 * struct ip_addr now packed.
1300 * The name of the time variable in arp.c has been changed to ctime
1301 to avoid conflicts with the time() function.
1303 (0.5.2) Changes since version 0.5.1
1307 * A new TCP function, tcp_tmr(), now handles both TCP timers.
1311 * A bug in tcp_parseopt() could cause the stack to hang because of a
1312 malformed TCP option.
1314 * The address of new connections in the accept() function in the BSD
1315 socket library was not handled correctly.
1317 * pbuf_dechain() did not update the ->tot_len field of the tail.
1319 * Aborted TCP connections were not handled correctly in all
1324 * All protocol header structs are now packed.
1326 * The ->len field in the tcp_seg structure now counts the actual
1327 amount of data, and does not add one for SYN and FIN segments.
1329 (0.5.1) Changes since version 0.5.0
1333 * Possible to run as a user process under Linux.
1335 * Preliminary support for cross platform packed structs.
1337 * ARP timer now implemented.
1341 * TCP output queue length was badly initialized when opening
1344 * TCP delayed ACKs were not sent correctly.
1346 * Explicit initialization of BSS segment variables.
1348 * read() in BSD socket library could drop data.
1350 * Problems with memory alignment.
1352 * Situations when all TCP buffers were used could lead to
1355 * TCP MSS option wasn't parsed correctly.
1357 * Problems with UDP checksum calculation.
1359 * IP multicast address tests had endianess problems.
1361 * ARP requests had wrong destination hardware address.
1365 * struct eth_addr changed from u16_t[3] array to u8_t[6].
1367 * A ->linkoutput() member was added to struct netif.
1369 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
1371 * ntoh* macros are now null definitions for big endian CPUs.
1373 (0.5.0) Changes since version 0.4.2
1377 * Redesigned operating system emulation layer to make porting easier.
1379 * Better control over TCP output buffers.
1381 * Documenation added.
1385 * Locking issues in buffer management.
1387 * Bugfixes in the sequential API.
1389 * IP forwarding could cause memory leakage. This has been fixed.
1393 * Directory structure somewhat changed; the core/ tree has been
1396 (0.4.2) Changes since version 0.4.1
1400 * Experimental ARP implementation added.
1402 * Skeleton Ethernet driver added.
1404 * Experimental BSD socket API library added.
1408 * In very intense situations, memory leakage could occur. This has
1413 * Variables named "data" and "code" have been renamed in order to
1414 avoid name conflicts in certain compilers.
1416 * Variable++ have in appliciable cases been translated to ++variable
1417 since some compilers generate better code in the latter case.
1419 (0.4.1) Changes since version 0.4
1423 * TCP: Connection attempts time out earlier than data
1424 transmissions. Nagle algorithm implemented. Push flag set on the
1425 last segment in a burst.
1427 * UDP: experimental support for UDP-Lite extensions.
1431 * TCP: out of order segments were in some cases handled incorrectly,
1432 and this has now been fixed. Delayed acknowledgements was broken
1433 in 0.4, has now been fixed. Binding to an address that is in use
1434 now results in an error. Reset connections sometimes hung an
1435 application; this has been fixed.
1437 * Checksum calculation sometimes failed for chained pbufs with odd
1438 lengths. This has been fixed.
1440 * API: a lot of bug fixes in the API. The UDP API has been improved
1441 and tested. Error reporting and handling has been
1442 improved. Logical flaws and race conditions for incoming TCP
1443 connections has been found and removed.
1445 * Memory manager: alignment issues. Reallocating memory sometimes
1446 failed, this has been fixed.
1448 * Generic library: bcopy was flawed and has been fixed.
1452 * API: all datatypes has been changed from generic ones such as
1453 ints, to specified ones such as u16_t. Functions that return
1454 errors now have the correct type (err_t).
1456 * General: A lot of code cleaned up and debugging code removed. Many
1457 portability issues have been fixed.
1459 * The license was changed; the advertising clause was removed.
1463 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
1464 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
1467 (0.4) Changes since version 0.3.1
1469 * Memory management has been radically changed; instead of
1470 allocating memory from a shared heap, memory for objects that are
1471 rapidly allocated and deallocated is now kept in pools. Allocation
1472 and deallocation from those memory pools is very fast. The shared
1473 heap is still present but is used less frequently.
1475 * The memory, memory pool, and packet buffer subsystems now support
1476 4-, 2-, or 1-byte alignment.
1478 * "Out of memory" situations are handled in a more robust way.
1480 * Stack usage has been reduced.
1482 * Easier configuration of lwIP parameters such as memory usage,
1483 TTLs, statistics gathering, etc. All configuration parameters are
1484 now kept in a single header file "lwipopts.h".
1486 * The directory structure has been changed slightly so that all
1487 architecture specific files are kept under the src/arch
1490 * Error propagation has been improved, both in the protocol modules
1493 * The code for the RTXC architecture has been implemented, tested
1496 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
1497 the Internet checksum modules.
1499 * Bugs related to porting between a 32-bit and a 16-bit architecture
1500 have been found and corrected.
1502 * The license has been changed slightly to conform more with the
1503 original BSD license, including the advertisement clause.
1505 (0.3.1) Changes since version 0.3
1507 * Fix of a fatal bug in the buffer management. Pbufs with allocated
1508 RAM never returned the RAM when the pbuf was deallocated.
1510 * TCP congestion control, window updates and retransmissions did not
1511 work correctly. This has now been fixed.
1513 * Bugfixes in the API.
1515 (0.3) Changes since version 0.2
1517 * New and improved directory structure. All include files are now
1518 kept in a dedicated include/ directory.
1520 * The API now has proper error handling. A new function,
1521 netconn_err(), now returns an error code for the connection in
1524 * Improvements in the memory management subsystem. The system now
1525 keeps a pointer to the lowest free memory block. A new function,
1526 mem_malloc2() tries to allocate memory once, and if it fails tries
1527 to free some memory and retry the allocation.
1529 * Much testing has been done with limited memory
1530 configurations. lwIP now does a better job when overloaded.
1532 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
1534 * Many bugfixes in the TCP code:
1536 - Fixed a bug in tcp_close().
1538 - The TCP receive window was incorrectly closed when out of
1539 sequence segments was received. This has been fixed.
1541 - Connections are now timed-out of the FIN-WAIT-2 state.
1543 - The initial congestion window could in some cases be too
1544 large. This has been fixed.
1546 - The retransmission queue could in some cases be screwed up. This
1549 - TCP RST flag now handled correctly.
1551 - Out of sequence data was in some cases never delivered to the
1552 application. This has been fixed.
1554 - Retransmitted segments now contain the correct acknowledgment
1555 number and advertised window.
1557 - TCP retransmission timeout backoffs are not correctly computed
1558 (ala BSD). After a number of retransmissions, TCP now gives up
1561 * TCP connections now are kept on three lists, one for active
1562 connections, one for listening connections, and one for
1563 connections that are in TIME-WAIT. This greatly speeds up the fast
1564 timeout processing for sending delayed ACKs.
1566 * TCP now provides proper feedback to the application when a
1567 connection has been successfully set up.
1569 * More comments have been added to the code. The code has also been
1570 somewhat cleaned up.
1572 (0.2) Initial public release.