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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [lwIP_130/] [CHANGELOG] - Blame information for rev 637

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Line No. Rev Author Line
1 606 jeremybenn
FUTURE
2
 
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.
7
 
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.
13
 
14
HISTORY
15
 
16
(CVS HEAD)
17
 
18
  * [Enter new changes just after this line - do not remove this line]
19
 
20
  ++ New features:
21
 
22
 
23
  ++ Bugfixes:
24
 
25
 
26
(STABLE-1.3.0)
27
 
28
  ++ New features:
29
 
30
  2008-03-10 Jonathan Larmour
31
  * inet_chksum.c: Allow choice of one of the sample algorithms to be
32
    made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
33
 
34
  2008-01-22 Frédéric Bernon
35
  * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
36
    TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
37
 
38
  2008-01-14 Frédéric Bernon
39
  * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
40
    to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
41
    tcp_recv callback (see rawapi.txt).
42
 
43
  2008-01-14 Frédéric Bernon, Marc Chaland
44
  * ip.c: Integrate patch #6369" ip_input : checking before realloc".
45
 
46
  2008-01-12 Frédéric Bernon
47
  * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
48
    netconn::sem per netconn::op_completed like suggested for the task #7490
49
    "Add return value to sys_mbox_post".
50
 
51
  2008-01-12 Frédéric Bernon
52
  * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
53
    DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
54
    sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
55
 
56
  2008-01-10 Frédéric Bernon
57
  * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
58
    "Add return value to sys_mbox_post". tcpip_callback is always defined as
59
    "blocking" ("block" parameter = 1).
60
 
61
  2008-01-10 Frédéric Bernon
62
  * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
63
    netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
64
    "Add return value to sys_mbox_post".
65
 
66
  2008-01-05 Frédéric Bernon
67
  * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
68
    Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
69
    modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
70
    indicate the number of pointers query by the mailbox. There is three defines
71
    in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
72
    netconn::acceptmbox. Port maintainers, you can decide to just add this new
73
    parameter in your implementation, but to ignore it to keep the previous behavior.
74
    The new sys_mbox_trypost function return a value to know if the mailbox is
75
    full or if the message is posted. Take a look to sys_arch.txt for more details.
76
    This new function is used in tcpip_input (so, can be called in an interrupt
77
    context since the function is not blocking), and in recv_udp and recv_raw.
78
 
79
  2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
80
  * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
81
    tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
82
    "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
83
    documentation in the rawapi.txt file.
84
 
85
  2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
86
  * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
87
 
88
  2007-12-31 Frédéric Bernon, Luca Ceresoli
89
  * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
90
    in autoip". The change in etharp_raw could be removed, since all calls to
91
    etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
92
    wrong in the future.
93
 
94
  2007-12-30 Frédéric Bernon, Tom Evans
95
  * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
96
    Filtering" reported by Tom Evans.
97
 
98
  2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
99
  * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
100
    sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
101
    applications have to call 'tcp_accepted(pcb)' in their accept callback to
102
    keep accepting new connections.
103
 
104
  2007-12-13 Frédéric Bernon
105
  * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
106
    by err_t type. Add a new err_t code "ERR_INPROGRESS".
107
 
108
  2007-12-12 Frédéric Bernon
109
  * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
110
    are the one which have ram usage.
111
 
112
  2007-12-05 Frédéric Bernon
113
  * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
114
    set of variables (=0) or a local one (=1). In this last case, your port should
115
    provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
116
    which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
117
 
118
  2007-12-03 Simon Goldschmidt
119
  * ip.c: ip_input: check if a packet is for inp first before checking all other
120
    netifs on netif_list (speeds up packet receiving in most cases)
121
 
122
  2007-11-30 Simon Goldschmidt
123
  * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
124
    UDP: move a (connected) pcb selected for input to the front of the list of
125
    pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
126
    a packet.
127
 
128
  2007-11-28 Simon Goldschmidt
129
  * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
130
 
131
  2007-11-25 Simon Goldschmidt
132
  * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
133
    algorithm.
134
 
135
  2007-11-24 Simon Goldschmidt
136
  * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
137
    to the new file netdb.c; included lwip_getaddrinfo.
138
 
139
  2007-11-21 Simon Goldschmidt
140
  * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
141
    based on the MTU of the netif used to send. Enabled by default. Disable by
142
    setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
143
 
144
  2007-11-19 Frédéric Bernon
145
  * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
146
    received match the name query), implement DNS_USES_STATIC_BUF (the place where
147
    copy dns payload to parse the response), return an error if there is no place
148
    for a new query, and fix some minor problems.
149
 
150
  2007-11-16 Simon Goldschmidt
151
  * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
152
    removed files: core/inet.c, core/inet6.c
153
    Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
154
    inet and chksum part; changed includes in all lwIP files as appropriate
155
 
156
  2007-11-16 Simon Goldschmidt
157
  * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
158
    dns resolver function for netconn api (netconn_gethostbyname) and socket api
159
    (gethostbyname/gethostbyname_r).
160
 
161
  2007-11-15 Jim Pettinato, Frédéric Bernon
162
  * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
163
    requests with RAW api interface. Initialization is done in lwip_init() with
164
    build time options. DNS timer is added in tcpip_thread context. DHCP can set
165
    DNS server ip addresses when options are received. You need to set LWIP_DNS=1
166
    in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
167
    some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
168
    list with points to improve.
169
 
170
  2007-11-06 Simon Goldschmidt
171
  * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
172
    enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
173
    for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
174
 
175
  2007-11-06 Simon Goldschmidt
176
  * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
177
    core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
178
    implementation from netconn api applications.
179
 
180
  2007-11-03 Frédéric Bernon
181
  * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
182
    RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
183
    by default). Netconn API users can use the netconn_recv_bufsize macro to access
184
    it. This is a first release which have to be improve for TCP. Note it used the
185
    netconn::recv_avail which need to be more "thread-safe" (note there is already
186
    the problem for FIONREAD with lwip_ioctl/ioctlsocket).
187
 
188
  2007-11-01 Frédéric Bernon, Marc Chaland
189
  * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
190
    Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
191
    layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
192
    layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
193
    Note that previous "copy" parameter for "write" APIs is now called "apiflags".
194
 
195
  2007-10-24 Frédéric Bernon
196
  * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
197
    TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
198
    some code (like we have talk in "patch #5919 : Create compile switch to remove
199
    select code"), but it could be done later.
200
 
201
  2007-10-08 Simon Goldschmidt
202
  * many files: Changed initialization: many init functions are not needed any
203
    more since we now rely on the compiler initializing global and static
204
    variables to zero!
205
 
206
  2007-10-06 Simon Goldschmidt
207
  * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
208
    to enqueue the received pbufs so that multiple packets can be reassembled
209
    simultaneously and no static reassembly buffer is needed.
210
 
211
  2007-10-05 Simon Goldschmidt
212
  * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
213
    all netifs (or ports) can use it.
214
 
215
  2007-10-05 Frédéric Bernon
216
  * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
217
    common function to reduce a little bit the footprint (for all functions using
218
    only the "netif" parameter).
219
 
220
  2007-10-03 Frédéric Bernon
221
  * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
222
    netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
223
    a little bit the footprint (for all functions using only the "netif" parameter).
224
 
225
  2007-09-15 Frédéric Bernon
226
  * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
227
    option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
228
    netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
229
    IP_MULTICAST_TTL and IP_MULTICAST_IF.
230
 
231
  2007-09-10 Frédéric Bernon
232
  * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
233
    even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
234
    each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
235
    decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
236
    call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
237
    or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
238
    This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
239
    snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
240
    when it's queried (any direct call to "sysuptime" is changed by a call to
241
    snmp_get_sysuptime).
242
 
243
  2007-09-09 Frédéric Bernon, Bill Florac
244
  * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
245
    and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
246
    if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
247
    igmp_report_groups() is now called inside netif_set_link_up() (need to have
248
    LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
249
    the next query message to receive the matching multicast streams).
250
 
251
  2007-09-08 Frédéric Bernon
252
  * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
253
    IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
254
    Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
255
    Enable to access to these fields with LWIP_TCP=0.
256
 
257
  2007-09-05 Frédéric Bernon
258
  * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
259
    ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
260
    LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
261
    Be careful, disabling ICMP make your product non-compliant to RFC1122, but
262
    help to reduce footprint, and to reduce "visibility" on the Internet.
263
 
264
  2007-09-05 Frédéric Bernon, Bill Florac
265
  * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
266
    for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
267
    parameters have to be provided: a task name, and a task stack size. For this
268
    one, since it's platform dependant, you could define the best one for you in
269
    your lwipopts.h. For port maintainers, you can just add these new parameters
270
    in your sys_arch.c file, and but it's not mandatory, use them in your OS
271
    specific functions.
272
 
273
  2007-09-05 Frédéric Bernon
274
  * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
275
    inside init.c for task #7142 "Sanity check user-configurable values".
276
 
277
  2007-09-04 Frédéric Bernon, Bill Florac
278
  * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
279
    memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
280
    value). It will avoid potential fragmentation problems, use a counter to know
281
    how many times a group is used on an netif, and free it when all applications
282
    leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
283
    check if LWIP_IGMP!=0).
284
 
285
  2007-09-03 Frédéric Bernon
286
  * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
287
    Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
288
    the netif's "init" function). Use the "imr_interface" field (for socket layer)
289
    and/or the "interface" field (for netconn layer), for join/leave operations.
290
    The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
291
    This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
292
 
293
  2007-08-30 Frédéric Bernon
294
  * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
295
    from api/api_lib". Now netbuf API is independant of netconn, and can be used
296
    with other API (application based on raw API, or future "socket2" API). Ports
297
    maintainers just have to add src/api/netbuf.c in their makefile/projects.
298
 
299
  2007-08-30 Frédéric Bernon, Jonathan Larmour
300
  * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
301
    user-configurable values".
302
 
303
  2007-08-29 Frédéric Bernon
304
  * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
305
    igmp_start is call inside netif_add. Now, igmp initialization is in the same
306
    spirit than the others modules. Modify some IGMP debug traces.
307
 
308
  2007-08-29 Frédéric Bernon
309
  * Add init.h, init.c, Change opt.h, tcpip.c: Task  #7213 "Add a lwip_init function"
310
    Add lwip_init function to regroup all modules initializations, and to provide
311
    a place to add code for task #7142 "Sanity check user-configurable values".
312
    Ports maintainers should remove direct initializations calls from their code,
313
    and add init.c in their makefiles. Note that lwip_init() function is called
314
    inside tcpip_init, but can also be used by raw api users since all calls are
315
    disabled when matching options are disabled. Also note that their is new options
316
    in opt.h, you should configure in your lwipopts.h (they are enabled per default).
317
 
318
  2007-08-26 Marc Boucher
319
  * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
320
    since they can under certain circumstances be called with an invalid conn
321
    pointer after the connection has been closed (and conn has been freed).
322
 
323
  2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
324
  * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
325
    Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
326
 
327
  2007-08-22 Frédéric Bernon
328
  * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
329
    to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
330
 
331
  2007-08-22 Frédéric Bernon
332
  * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
333
    ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
334
    name is tcpip_input (we keep the name of 1.2.0 function).
335
 
336
  2007-08-17 Jared Grubb
337
  * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
338
    settings into new memp_std.h and optional user file lwippools.h. This adds
339
    more dynamic mempools, and allows the user to create an arbitrary number of
340
    mempools for mem_malloc.
341
 
342
  2007-08-16 Marc Boucher
343
  * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
344
    otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
345
    close the connection.
346
 
347
  2007-08-16 Marc Boucher
348
  * sockets.c: lwip_accept(): check netconn_peer() error return.
349
 
350
  2007-08-16 Marc Boucher
351
  * mem.c, mem.h: Added mem_calloc().
352
 
353
  2007-08-16 Marc Boucher
354
  * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
355
    for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
356
    and starving other message types.
357
    Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
358
 
359
  2007-08-16 Marc Boucher
360
  * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
361
    type and flgs (later renamed to flags).
362
    Use enum pbuf_flag as pbuf_type.  Renumber PBUF_FLAG_*.
363
    Improved lwip_recvfrom().  TCP push now propagated.
364
 
365
  2007-08-16 Marc Boucher
366
  * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
367
    provided by etharp.
368
 
369
  2007-08-16 Marc Boucher
370
  * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
371
    etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
372
    Added PPPoE support and various PPP improvements.
373
 
374
  2007-07-25 Simon Goldschmidt
375
  * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
376
    making netbuf_copy_partial use this function.
377
 
378
  2007-07-25 Simon Goldschmidt
379
  * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
380
    2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
381
    other stacks.
382
 
383
  2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
384
  * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
385
    a link callback in the netif struct, and functions to handle it. Be carefull
386
    for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
387
    if you want to be sure to be compatible with future changes...
388
 
389
  2007-06-30 Frédéric Bernon
390
  * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
391
 
392
  2007-06-21 Simon Goldschmidt
393
  * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
394
    LWIP_AUTOIP =0 and =1 to remove redundant code.
395
 
396
  2007-06-21 Simon Goldschmidt
397
  * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
398
    MEM_USE_POOLS to use 4 pools with different sized elements instead of a
399
    heap. This both prevents memory fragmentation and gives a higher speed
400
    at the cost of more memory consumption. Turned off by default.
401
 
402
  2007-06-21 Simon Goldschmidt
403
  * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
404
    netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
405
    int to be able to send a bigger buffer than 64K with one time (mainly
406
    used from lwip_send).
407
 
408
  2007-06-21 Simon Goldschmidt
409
  * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
410
    into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
411
 
412
  2007-06-21 Simon Goldschmidt
413
  * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
414
    netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
415
    changes on low memory or empty send-buffer.
416
 
417
  2007-06-18 Simon Goldschmidt
418
  * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
419
    of 6 to avoid loading netif->hwaddr_len every time (since this file is only
420
    used for ethernet and struct eth_addr already had a defined length of 6).
421
 
422
  2007-06-17 Simon Goldschmidt
423
  * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
424
    to disable UDP checksum generation on transmit.
425
 
426
  2007-06-13 Frédéric Bernon, Simon Goldschmidt
427
  * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
428
    pointers or parameters, and let the possibility to redefined it in cc.h. Use
429
    this macro to check "conn" parameter in api_msg.c functions.
430
 
431
  2007-06-11 Simon Goldschmidt
432
  * sockets.c, sockets.h: Added UDP lite support for sockets
433
 
434
  2007-06-10 Simon Goldschmidt
435
  * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
436
    by default) to switch off UDP-Lite support if not needed (reduces udp.c code
437
    size)
438
 
439
  2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
440
  * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
441
    AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
442
    LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
443
    (see TODO mark in the source code).
444
 
445
  2007-06-09 Simon Goldschmidt
446
  * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
447
    etharp_output() to match netif->output so etharp_output() can be used
448
    directly as netif->output to save one function call.
449
 
450
  2007-06-08 Simon Goldschmidt
451
  * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
452
    NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
453
    added initialization of those to ethernetif, slipif and loopif.
454
 
455
  2007-05-18 Simon Goldschmidt
456
  * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
457
    (defaulting to off for now) that can be set to 0 to send fragmented
458
    packets by passing PBUF_REFs down the stack.
459
 
460
  2007-05-23 Frédéric Bernon
461
  * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
462
    connections, such present in patch #5959.
463
 
464
  2007-05-23 Frédéric Bernon
465
  * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
466
    code in only one part...
467
 
468
  2007-05-18 Simon Goldschmidt
469
  * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
470
    elements to overflow. This is achieved by adding some bytes before and after
471
    each pool element (increasing their size, of course), filling them with a
472
    prominent value and checking them on freeing the element.
473
    Set it to 2 to also check every element in every pool each time memp_malloc()
474
    or memp_free() is called (slower but more helpful).
475
 
476
  2007-05-10 Simon Goldschmidt
477
  * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
478
    PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
479
    code size.
480
 
481
  2007-05-11 Frédéric Bernon
482
  * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
483
    Include a function pointer instead of a table index in the message to reduce
484
    footprint. Disable some part of lwip_send and lwip_sendto if some options are
485
    not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
486
 
487
  2007-05-10 Simon Goldschmidt
488
  * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
489
    \ extern "C" {' in all header files. Now you can write your application using
490
    the lwIP stack in C++ and simply #include the core files. Note I have left
491
    out the netif/ppp/*h header files for now, since I don't know which files are
492
    included by applications and which are for internal use only.
493
 
494
  2007-05-09 Simon Goldschmidt
495
  * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
496
    memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
497
    situations where some compilers might inline the copy and save a function
498
    call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
499
 
500
  2007-05-08 Simon Goldschmidt
501
  * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
502
    to be overriden in case the C-library malloc implementation is not protected
503
    against concurrent access.
504
 
505
  2007-05-04 Simon Goldschmidt (Atte Kojo)
506
  * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
507
    multiple packets to the same host.
508
 
509
  2007-05-04 Frédéric Bernon, Jonathan Larmour
510
  * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
511
    to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
512
    netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
513
    sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
514
    Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
515
    these fields are now renamed "addr" & "port".
516
 
517
  2007-04-11 Jonathan Larmour
518
  * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
519
    sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
520
    with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
521
    by the port in sys_arch.h if desired.
522
 
523
  2007-04-06 Frédéric Bernon, Simon Goldschmidt
524
  * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
525
    allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
526
    clients, using new functions from netifapi.h. Disable as default (no port change to do).
527
 
528
  2007-04-05 Frédéric Bernon
529
  * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
530
 
531
  2007-04-04 Simon Goldschmidt
532
  * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
533
    use this for and architecture-independent form to tell the compiler you intentionally
534
    are not using this variable. Can be overriden in cc.h.
535
 
536
  2007-03-28 Frédéric Bernon
537
  * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
538
    define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
539
    string, point on one of your's ethernetif field, or alloc a string you will free yourself).
540
    It will be used by DHCP to register a client hostname, but can also be use when you call
541
    snmp_set_sysname.
542
 
543
  2007-03-28 Frédéric Bernon
544
  * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
545
    initialize a network interface's flag with. It tell this interface is an ethernet
546
    device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
547
    Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
548
 
549
  2007-03-26 Frédéric Bernon, Jonathan Larmour
550
  * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
551
    time if you only use PPP or SLIP. The default is enable. Note we don't have to call
552
    etharp_init in your port's initilization sequence if you use tcpip.c, because this call
553
    is done in tcpip_init function.
554
 
555
  2007-03-22 Frédéric Bernon
556
  * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
557
    new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
558
    your lwipopts.h. More, unused counters are not defined in the stats structs, and not
559
    display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
560
    but never used. Fix msg_in.c with the correct #if test for a stat display.
561
 
562
  2007-03-21 Kieran Mansley
563
  * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
564
    Provides callback on netif up/down state change.
565
 
566
  2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
567
  * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
568
    ip.c, netif.h, tcpip.c, opt.h:
569
    New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
570
    filter per all network interfaces. Declare a new function in netif to enable to
571
    control the MAC filter (to reduce lwIP traffic processing).
572
 
573
  2007-03-11 Frédéric Bernon
574
  * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
575
    be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
576
    unless you know what you're doing (default are RFC1122 compliant). Note
577
    that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
578
 
579
  2007-03-08 Frédéric Bernon
580
  * tcp.h: Keepalive values can be configured at compile time, but don't change
581
    this unless you know what you're doing (default are RFC1122 compliant).
582
 
583
  2007-03-08 Frédéric Bernon
584
  * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
585
    Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
586
    on UDP sockets/netconn.
587
 
588
  2007-03-08 Simon Goldschmidt
589
  * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
590
 
591
  2007-03-06 Frédéric Bernon
592
  * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
593
    Implement SO_RCVTIMEO on UDP sockets/netconn.
594
 
595
  2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
596
  * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
597
    on the stack and remove the API msg type from memp
598
 
599
  2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
600
  * sockets.h, sockets.c: Move socket initialization to new
601
    lwip_socket_init() function.
602
    NOTE: this changes the API with ports. Ports will have to be
603
    updated to call lwip_socket_init() now.
604
 
605
  2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
606
  * api_lib.c: Use memcpy in netbuf_copy_partial.
607
 
608
 
609
  ++ Bug fixes:
610
 
611
  2008-03-17 Frédéric Bernon, Ed Kerekes
612
  * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
613
    some problems to fill the IP header on some targets, use now the
614
    ip.h macros to do it).
615
 
616
  2008-03-13 Frédéric Bernon
617
  * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
618
    (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
619
    TCP connection caused a crash. Note that using (lwip_)recvfrom
620
    like this is a bit slow and that using (lwip)getpeername is the
621
    good lwip way to do it (so, using recv is faster on tcp sockets).
622
 
623
  2008-03-12 Frédéric Bernon, Jonathan Larmour
624
  * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
625
    recv_raw() does not consume data", and the ping sample (with
626
    LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
627
    returned the IP payload, without the IP header).
628
 
629
  2008-03-04 Jonathan Larmour
630
  * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
631
  and/or warnings on some systems where mem_size_t and size_t differ.
632
  * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
633
 
634
  2008-03-04 Kieran Mansley (contributions by others)
635
  * Numerous small compiler error/warning fixes from contributions to
636
    mailing list after 1.3.0 release candidate made.
637
 
638
  2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
639
  * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
640
 
641
  2008-01-15 Kieran Mansley
642
  * tcp_out.c: BUG20511.  Modify persist timer to start when we are
643
    prevented from sending by a small send window, not just a zero
644
    send window.
645
 
646
  2008-01-09 Jonathan Larmour
647
  * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
648
    conflict with Linux system headers.
649
 
650
  2008-01-06 Jonathan Larmour
651
  * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
652
    address entirely on receiving a DHCPNAK, and restarting discovery.
653
 
654
  2007-12-21 Simon Goldschmidt
655
  * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
656
    is not protected" by using new macros for interlocked access to modify/test
657
    netconn->recv_avail.
658
 
659
  2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
660
  * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
661
 
662
  2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
663
  * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
664
    of silly window avoidance and prevent lwIP from shrinking the window)
665
 
666
  2007-12-04 Simon Goldschmidt
667
  * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
668
    data packet was lost): add assert that all segment lists are empty in
669
    tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
670
    state from LAST_ACK in tcp_process
671
 
672
  2007-12-02 Simon Goldschmidt
673
  * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
674
    If including  for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
675
    has to be set to 0 in lwipopts.h
676
 
677
  2007-12-02 Simon Goldschmidt
678
  * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
679
    allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
680
    netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
681
    This is a fix for thread-safety and allocates all items needed for a netconn
682
    when the netconn is created.
683
 
684
  2007-11-30 Simon Goldschmidt
685
  * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
686
    netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
687
    to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
688
    port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
689
 
690
  2007-11-27 Simon Goldschmidt
691
  * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
692
    letting ip_route only use netifs that are up.
693
 
694
  2007-11-27 Simon Goldschmidt
695
  * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
696
    and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
697
    sockets block most operations once they have seen a fatal error.
698
 
699
  2007-11-27 Simon Goldschmidt
700
  * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
701
    netif to send as an argument (to be able to send on netifs that are down).
702
 
703
  2007-11-26 Simon Goldschmidt
704
  * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
705
    arrive out-of-order
706
 
707
  2007-11-21 Simon Goldschmidt
708
  * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
709
    Fixed the nagle algorithm; nagle now also works for all raw API applications
710
    and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
711
 
712
  2007-11-12 Frédéric Bernon
713
  * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
714
    of the netconn_peer and netconn_addr processing is done inside tcpip_thread
715
    context in do_getaddr.
716
 
717
  2007-11-10 Simon Goldschmidt
718
  * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
719
    happen any time). Now the packet simply isn't enqueued when out of memory.
720
 
721
  2007-11-01 Simon Goldschmidt
722
  * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
723
    TCP_MSS if that is smaller) as long as no MSS option is received from the
724
    remote host.
725
 
726
  2007-11-01 Simon Goldschmidt
727
  * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
728
    is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
729
    sending our configured TCP_MSS instead of the one received).
730
 
731
  2007-11-01 Simon Goldschmidt
732
  * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
733
    calculated based on the configured TCP_MSS, not on the MSS option received
734
    with SYN+ACK.
735
 
736
  2007-10-09 Simon Goldschmidt
737
  * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
738
    short and also was generated wrong if checksum coverage != tot_len;
739
    receive: checksum was calculated wrong if checksum coverage != tot_len
740
 
741
  2007-10-08 Simon Goldschmidt
742
  * mem.c: lfree was not updated in mem_realloc!
743
 
744
  2007-10-07 Frédéric Bernon
745
  * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
746
    crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
747
    this change cause an API breakage for netconn_addr, since a parameter
748
    type change. Any compiler should cause an error without any changes in
749
    yours netconn_peer calls (so, it can't be a "silent change"). It also
750
    reduce a little bit the footprint for socket layer (lwip_getpeername &
751
    lwip_getsockname use now a common lwip_getaddrname function since
752
    netconn_peer & netconn_addr have the same parameters).
753
 
754
  2007-09-20 Simon Goldschmidt
755
  * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
756
    by checking  tcp_tw_pcbs also
757
 
758
  2007-09-19 Simon Goldschmidt
759
  * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
760
 
761
  2007-09-15 Mike Kleshov
762
  * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
763
 
764
  2007-09-06 Frédéric Bernon
765
  * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
766
    it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
767
    already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
768
    if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
769
 
770
  2007-08-30 Frédéric Bernon
771
  * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
772
    and fix some coding style.
773
 
774
  2007-08-28 Frédéric Bernon
775
  * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
776
    kind of packets. These packets are considered like Ethernet packets (payload
777
    pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
778
    are considered like IP packets (payload pointing to iphdr).
779
 
780
  2007-08-27 Frédéric Bernon
781
  * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
782
    problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
783
    and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
784
 
785
  2007-08-24 Kieran Mansley
786
  * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
787
    compiler (Paradigm C++)
788
 
789
  2007-08-09 Frédéric Bernon, Bill Florac
790
  * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
791
    Introduce IGMP_STATS to centralize statistics management.
792
 
793
  2007-08-09 Frédéric Bernon, Bill Florac
794
  * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
795
    packet on a udp pcb binded on an netif's IP address, and not on "any".
796
 
797
  2007-08-09 Frédéric Bernon, Bill Florac
798
  * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
799
    This is mainly on using lookup/lookfor, and some coding styles...
800
 
801
  2007-07-26 Frédéric Bernon (and "thedoctor")
802
  * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
803
 
804
  2007-07-25 Simon Goldschmidt
805
  * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
806
    tcp_output fails in tcp_close, the code in do_close_internal gets simpler
807
    (tcp_output is called again later from tcp timers).
808
 
809
  2007-07-25 Simon Goldschmidt
810
  * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
811
    copy_from_pbuf, which illegally modified the given pbuf.
812
 
813
  2007-07-25 Simon Goldschmidt
814
  * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
815
    changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
816
 
817
  2007-07-24 Simon Goldschmidt
818
  * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
819
    correct state (must be CLOSED).
820
 
821
  2007-07-13 Thomas Taranowski (commited by Jared Grubb)
822
  * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
823
    allocation. It now returns NULL.
824
 
825
  2007-07-13 Frédéric Bernon
826
  * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
827
    all error cases.
828
 
829
  2007-07-13 Frédéric Bernon
830
  * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
831
    because current code doesn't follow rawapi.txt documentation.
832
 
833
  2007-07-13 Kieran Mansley
834
  * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
835
    out of sequence processing of received packets
836
 
837
  2007-07-03 Simon Goldschmidt
838
  * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
839
    assumption is made that this pbuf is in one piece (i.e. not chained). These
840
    assumptions clash with the possibility of converting to fully pool-based
841
    pbuf implementations, where PBUF_RAM pbufs might be chained.
842
 
843
  2007-07-03 Simon Goldschmidt
844
  * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
845
    when closing tcp netconns: removed conn->sem, less context switches when
846
    closing, both netconn_close and netconn_delete should safely close tcp
847
    connections.
848
 
849
  2007-07-02 Simon Goldschmidt
850
  * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
851
    tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
852
    to cache ARP table indices with each pcb instead of single-entry cache for
853
    the complete stack.
854
 
855
  2007-07-02 Simon Goldschmidt
856
  * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
857
    warnings when assigning to smaller types.
858
 
859
  2007-06-28 Simon Goldschmidt
860
  * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
861
 
862
  2007-06-28 Simon Goldschmidt
863
  * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
864
    a segment contained chained pbufs)
865
 
866
  2007-06-28 Frédéric Bernon
867
  * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
868
    a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
869
    possible to define this macro in your own lwipopts.h to always use C library's
870
    rand(). Note that autoip_create_rand_addr doesn't use this macro.
871
 
872
  2007-06-28 Frédéric Bernon
873
  * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
874
    LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
875
    in api_lib/api_msg (use pointers and not type with table, etc...)
876
 
877
  2007-06-26 Simon Goldschmidt
878
  * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
879
 
880
  2007-06-25 Simon Goldschmidt
881
  * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
882
    for udp packets with no matching pcb.
883
 
884
  2007-06-25 Simon Goldschmidt
885
  * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
886
    could get udp input packets if the remote side matched.
887
 
888
  2007-06-13 Simon Goldschmidt
889
  * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
890
    changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
891
 
892
  2007-06-13 Simon Goldschmidt
893
  * api_msg.c: pcb_new sets conn->err if protocol is not implemented
894
    -> netconn_new_..() does not allocate a new connection for unsupported
895
    protocols.
896
 
897
  2007-06-13 Frédéric Bernon, Simon Goldschmidt
898
  * api_lib.c: change return expression in netconn_addr and netconn_peer, because
899
    conn->err was reset to ERR_OK without any reasons (and error was lost)...
900
 
901
  2007-06-13 Frédéric Bernon, Matthias Weisser
902
  * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
903
    MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
904
    some macro names collision with some OS macros.
905
 
906
  2007-06-11 Simon Goldschmidt
907
  * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
908
    create checksum over the complete packet. On RX, if it's < 8 (and not 0),
909
    discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
910
    UDP & UDP Lite.
911
 
912
  2007-06-11 Srinivas Gollakota & Oleg Tyshev
913
  * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
914
    where TCP flags wasn't initialized in tcp_keepalive.
915
 
916
  2007-06-03 Simon Goldschmidt
917
  * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
918
    registered, p->payload was modified without modifying p->len if sending
919
    icmp_dest_unreach() (had no negative effect but was definitively wrong).
920
 
921
  2007-06-03 Simon Goldschmidt
922
  * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
923
    re-used the input pbuf even if that didn't have enough space to include the
924
    link headers. Now the space is tested and a new pbuf is allocated for the
925
    echo response packet if the echo request pbuf isn't big enough.
926
 
927
  2007-06-01 Simon Goldschmidt
928
  * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
929
 
930
  2007-05-23 Frédéric Bernon
931
  * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
932
    allocated by do_listen if success) and netconn_accept errors handling. In
933
    most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
934
    by ASSERT, except for netconn_delete.
935
 
936
  2007-05-23 Frédéric Bernon
937
  * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
938
    an error code if it's impossible to fetch a pbuf on a TCP connection (and not
939
    directly close the recvmbox).
940
 
941
  2007-05-22 Simon Goldschmidt
942
  * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
943
    bound but unconnected (and non-listening) tcp_pcbs.
944
 
945
  2007-05-22 Frédéric Bernon
946
  * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
947
    used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
948
    sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
949
    like "sys_timeout" in their application threads.
950
 
951
  2007-05-22 Frédéric Bernon
952
  * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
953
    which parameters are used by which do_xxx function, and to avoid "misusing"
954
    parameters (patch #5938).
955
 
956
  2007-05-22 Simon Goldschmidt
957
  * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
958
    changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
959
    is only 8 bits wide. This affects the api, as there, the protocol was
960
    u16_t, too.
961
 
962
  2007-05-18 Simon Goldschmidt
963
  * memp.c: addition to patch #5913: smaller pointer was returned but
964
    memp_memory was the same size -> did not save memory.
965
 
966
  2007-05-16 Simon Goldschmidt
967
  * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
968
    != ERR_OK.
969
 
970
  2007-05-16 Simon Goldschmidt
971
  * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
972
    as the one of the netif used for sending to prevent sending from old
973
    addresses after a netif address gets changed (partly fixes bug #3168).
974
 
975
  2007-05-16 Frédéric Bernon
976
  * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
977
    with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
978
    tcpip_init) because we have to be sure that network interfaces are already
979
    added (mac filter is updated only in igmp_init for the moment).
980
 
981
  2007-05-16 Simon Goldschmidt
982
  * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
983
    into sys_arch_sem_wait calls to prevent timers from running while waiting
984
    for the heap. This fixes bug #19167.
985
 
986
  2007-05-13 Simon Goldschmidt
987
  * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
988
    for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
989
    tcp.h to sockets.h.
990
 
991
  2007-05-07 Simon Goldschmidt
992
  * mem.c: Another attempt to fix bug #17922.
993
 
994
  2007-05-04 Simon Goldschmidt
995
  * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
996
    implementation so that it can be reused (don't allocate the target
997
    pbuf inside pbuf_copy()).
998
 
999
  2007-05-04 Simon Goldschmidt
1000
  * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
1001
    to save a little RAM (next pointer of memp is not used while not in pool).
1002
 
1003
  2007-05-03 "maq"
1004
  * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
1005
    (patch #3574).
1006
 
1007
  2007-04-23 Simon Goldschmidt
1008
  * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
1009
    in NULL reference for incoming TCP packets". Loopif has to be configured
1010
    (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
1011
    (multithreading environments, e.g. netif->input() = tcpip_input()) or
1012
    putting packets on a list that is fed to the stack by calling loopif_poll()
1013
    (single-thread / NO_SYS / polling environment where e.g.
1014
    netif->input() = ip_input).
1015
 
1016
  2007-04-17 Jonathan Larmour
1017
  * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
1018
    the difference between two u16_t's.
1019
  * sockets.h: FD_SETSIZE needs to match number of sockets, which is
1020
    MEMP_NUM_NETCONN in sockets.c right now.
1021
 
1022
  2007-04-12 Jonathan Larmour
1023
  * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
1024
 
1025
  2007-04-12 Kieran Mansley
1026
  * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
1027
    timer is reset to fix bug#19434, with help from Oleg Tyshev.
1028
 
1029
  2007-04-11 Simon Goldschmidt
1030
  * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
1031
    previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
1032
    pbuf.c: removed functions no needed any more (by etharp).
1033
 
1034
  2007-04-11 Kieran Mansley
1035
  * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
1036
    "Constant is long" warnings with 16bit compilers.  Contributed by
1037
    avatar@mmlab.cse.yzu.edu.tw
1038
 
1039
  2007-04-05 Frédéric Bernon, Jonathan Larmour
1040
  * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
1041
    the mailbox is active". Now, the post is only done during a connect, and do_send,
1042
    do_write and do_join_leave_group don't do anything if a previous error was signaled.
1043
 
1044
  2007-04-03 Frédéric Bernon
1045
  * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
1046
    packets. See patch #5834.
1047
 
1048
  2007-03-30 Frédéric Bernon
1049
  * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
1050
    missing  pcb allocations checking (in do_bind, and for each raw_new). Fix style.
1051
 
1052
  2007-03-30 Frédéric Bernon
1053
  * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
1054
    others environment defines (these were too "generic").
1055
 
1056
  2007-03-28 Frédéric Bernon
1057
  * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
1058
    result and can cause a crash. lwip_send now check netbuf_ref result.
1059
 
1060
  2007-03-28 Simon Goldschmidt
1061
  * sockets.c Remove "#include " from sockets.c to avoid multiple
1062
    definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
1063
    defined. This is the way it should have been already (looking at
1064
    doc/sys_arch.txt)
1065
 
1066
  2007-03-28 Kieran Mansley
1067
  * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
1068
    IP and TCP headers *and* physical link headers
1069
 
1070
  2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
1071
  * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
1072
    to send some garbage. It is not a definitive solution, but the patch does solve
1073
    the problem for most cases.
1074
 
1075
  2007-03-22 Frédéric Bernon
1076
  * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
1077
 
1078
  2007-03-22 Frédéric Bernon
1079
  * api_lib.c: somes resources couldn't be freed if there was errors during
1080
    netconn_new_with_proto_and_callback.
1081
 
1082
  2007-03-22 Frédéric Bernon
1083
  * ethernetif.c: update netif->input calls to check return value. In older ports,
1084
    it's a good idea to upgrade them, even if before, there could be another problem
1085
    (access to an uninitialized mailbox).
1086
 
1087
  2007-03-21 Simon Goldschmidt
1088
  * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
1089
    by casting to unsigned).
1090
 
1091
  2007-03-21 Frédéric Bernon
1092
  * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
1093
    api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
1094
    dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
1095
    Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
1096
    faster and more reliable communication between api_lib and tcpip.
1097
 
1098
  2007-03-21 Frédéric Bernon
1099
  * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
1100
 
1101
  2007-03-21 Frédéric Bernon
1102
  * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
1103
 
1104
  2007-03-21 Kieran Mansley
1105
  * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
1106
    IP and TCP headers
1107
 
1108
  2007-03-21 Kieran Mansley
1109
  * Fix all uses of pbuf_header to check the return value.  In some
1110
    cases just assert if it fails as I'm not sure how to fix them, but
1111
    this is no worse than before when they would carry on regardless
1112
    of the failure.
1113
 
1114
  2007-03-21 Kieran Mansley
1115
  * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
1116
    comment out missing header include in icmp.c
1117
 
1118
  2007-03-20 Frédéric Bernon
1119
  * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
1120
    synchronized with memp.h.
1121
 
1122
  2007-03-20 Frédéric Bernon
1123
  * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
1124
    tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
1125
    network interfaces. Also fix a compiler warning.
1126
 
1127
  2007-03-20 Kieran Mansley
1128
  * udp.c: Only try and use pbuf_header() to make space for headers if
1129
    not a ROM or REF pbuf.
1130
 
1131
  2007-03-19 Frédéric Bernon
1132
  * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
1133
    and api_msg_post().
1134
 
1135
  2007-03-19 Frédéric Bernon
1136
  * Remove unimplemented "memp_realloc" function from memp.h.
1137
 
1138
  2007-03-11 Simon Goldschmidt
1139
  * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
1140
    memory corruption.
1141
 
1142
  2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
1143
  * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
1144
    (missing `const' qualifier in socket functions), to get more compatible to
1145
    standard POSIX sockets.
1146
 
1147
  2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
1148
  * sockets.c: Add asserts inside bind, connect and sendto to check input
1149
    parameters. Remove excessive set_errno() calls after get_socket(), because
1150
    errno is set inside of get_socket(). Move last sock_set_errno() inside
1151
    lwip_close.
1152
 
1153
  2007-03-09 Simon Goldschmidt
1154
  * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
1155
    was allocated too small.
1156
 
1157
  2007-03-06 Simon Goldschmidt
1158
  * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
1159
    the stack from concurrent access.
1160
 
1161
  2007-03-06 Frédéric Bernon, Dmitry Potapov
1162
  * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
1163
    call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
1164
 
1165
  2007-03-06 Simon Goldschmidt
1166
  * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
1167
    if IP_FRAG == 0 and IP_REASSEMBLY == 0
1168
 
1169
  2007-03-06 Frédéric Bernon, Simon Goldschmidt
1170
  * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
1171
    option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
1172
    Allow to do ARP processing for incoming packets inside tcpip_thread
1173
    (protecting ARP layer against concurrent access). You can also disable
1174
    old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
1175
    Older ports have to use tcpip_ethinput.
1176
 
1177
  2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
1178
  * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
1179
    from pointer target type"
1180
 
1181
  2007-03-05 Frédéric Bernon
1182
  * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
1183
    ETHARP_TRUST_IP_MAC, review SO_REUSE)
1184
 
1185
  2007-03-04 Frédéric Bernon
1186
  * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
1187
    referenced.
1188
 
1189
  2007-03-04 Frédéric Bernon
1190
  * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
1191
    Dmitry Potapov).
1192
    The api_msg struct stay on the stack (not moved to netconn struct).
1193
 
1194
  2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
1195
  * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
1196
    SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
1197
    Also fixed cast warning in pbuf_alloc()
1198
 
1199
  2007-03-04 Simon Goldschmidt
1200
  * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
1201
    existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
1202
 
1203
  2007-03-03 Frédéric Bernon
1204
  * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
1205
    It is static, and never used in udp.c except udp_init().
1206
 
1207
  2007-03-02 Simon Goldschmidt
1208
  * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
1209
    tcpip_thread() to tcpip_init(). This way, raw API connections can be
1210
    initialized before tcpip_thread is running (e.g. before OS is started)
1211
 
1212
  2007-03-02 Frédéric Bernon
1213
  * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
1214
    interval.
1215
 
1216
  2007-02-28 Kieran Mansley
1217
  * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
1218
    outside the region of the pbuf by pbuf_header()
1219
 
1220
  2007-02-28 Kieran Mansley
1221
  * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
1222
    when supplied timeout is also non-zero
1223
 
1224
(STABLE-1.2.0)
1225
 
1226
  2006-12-05 Leon Woestenberg
1227
  * CHANGELOG: Mention STABLE-1.2.0 release.
1228
 
1229
  ++ New features:
1230
 
1231
  2006-12-01 Christiaan Simons
1232
  * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
1233
    Note this is a workaround. Currently I have no other options left.
1234
 
1235
  2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
1236
  * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
1237
    to include/lwip/opt.h.
1238
  * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
1239
    Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
1240
  * opt.h: Add above new options.
1241
 
1242
  2006-08-18 Christiaan Simons
1243
  * tcp_{in,out}.c: added SNMP counters.
1244
  * ipv4/ip.c: added SNMP counters.
1245
  * ipv4/ip_frag.c: added SNMP counters.
1246
 
1247
  2006-08-08 Christiaan Simons
1248
  * etharp.{c,h}: added etharp_find_addr() to read
1249
    (stable) ethernet/IP address pair from ARP table
1250
 
1251
  2006-07-14 Christiaan Simons
1252
  * mib_structs.c: added
1253
  * include/lwip/snmp_structs.h: added
1254
  * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
1255
 
1256
  2006-07-06 Christiaan Simons
1257
  * snmp/asn1_{enc,dec}.c added
1258
  * snmp/mib2.c added
1259
  * snmp/msg_{in,out}.c added
1260
  * include/lwip/snmp_asn1.h added
1261
  * include/lwip/snmp_msg.h added
1262
  * doc/snmp_agent.txt added
1263
 
1264
  2006-03-29 Christiaan Simons
1265
  * inet.c, inet.h: Added platform byteswap support.
1266
    Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
1267
    optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
1268
 
1269
  ++ Bug fixes:
1270
 
1271
  2006-11-30 Christiaan Simons
1272
  * dhcp.c: Fixed false triggers of request_timeout.
1273
 
1274
  2006-11-28 Christiaan Simons
1275
  * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
1276
 
1277
  2006-10-11 Christiaan Simons
1278
  * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
1279
    Partially accepted patch #5449 for ANSI C compatibility / build fixes.
1280
  * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
1281
    identifier from 170 to 136 (bug #17574).
1282
 
1283
  2006-10-10 Christiaan Simons
1284
  * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
1285
 
1286
  2006-08-17 Christiaan Simons
1287
  * udp.c: Fixed bug #17200, added check for broadcast
1288
    destinations for PCBs bound to a unicast address.
1289
 
1290
  2006-08-07 Christiaan Simons
1291
  * api_msg.c: Flushing TCP output in do_close() (bug #15926).
1292
 
1293
  2006-06-27 Christiaan Simons
1294
  * api_msg.c: Applied patch for cold case (bug #11135).
1295
    In accept_function() ensure newconn->callback is always initialized.
1296
 
1297
  2006-06-15 Christiaan Simons
1298
  * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
1299
    facilitate printing of mem_size_t and u16_t statistics.
1300
 
1301
  2006-06-14 Christiaan Simons
1302
  * api_msg.c: Applied patch #5146 to handle allocation failures
1303
    in accept() by Kevin Lawson.
1304
 
1305
  2006-05-26 Christiaan Simons
1306
  * api_lib.c: Removed conn->sem creation and destruction
1307
    from netconn_write() and added sys_sem_new to netconn_new_*.
1308
 
1309
(STABLE-1_1_1)
1310
 
1311
  2006-03-03  Christiaan Simons
1312
  * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
1313
    access and added pbuf_alloc() return value checks.
1314
 
1315
  2006-01-01  Leon Woestenberg 
1316
  * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
1317
    now handled by the checksum routine properly.
1318
 
1319
  2006-02-27  Leon Woestenberg 
1320
   * pbuf.c: Fix alignment; pbuf_init() would not work unless
1321
     pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
1322
 
1323
  2005-12-20  Leon Woestenberg 
1324
  * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
1325
    submitted by Mitrani Hiroshi.
1326
 
1327
  2005-12-15  Christiaan Simons
1328
  * inet.c: Disabled the added summing routine to preserve code space.
1329
 
1330
  2005-12-14  Leon Woestenberg 
1331
  * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
1332
    Added Curt McDowell's optimized checksumming routine for future
1333
    inclusion. Need to create test case for unaliged, aligned, odd,
1334
    even length combination of cases on various endianess machines.
1335
 
1336
  2005-12-09  Christiaan Simons
1337
  * inet.c: Rewrote standard checksum routine in proper portable C.
1338
 
1339
  2005-11-25  Christiaan Simons
1340
  * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
1341
  * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
1342
    u32_t, s32_t typedefs. This solves most debug word-length assumes.
1343
 
1344
  2005-07-17 Leon Woestenberg 
1345
  * inet.c: Fixed unaligned 16-bit access in the standard checksum
1346
    routine by Peter Jolasson.
1347
  * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
1348
 
1349
  2005-02-04 Leon Woestenberg 
1350
  * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
1351
  * tcp_{out|in}.c: Applied patch fixing unaligned access.
1352
 
1353
  2005-01-04 Leon Woestenberg 
1354
  * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
1355
 
1356
  2005-01-03 Leon Woestenberg 
1357
  * udp.c: UDP pcb->recv() was called even when it was NULL.
1358
 
1359
(STABLE-1_1_0)
1360
 
1361
  2004-12-28 Leon Woestenberg 
1362
  * etharp.*: Disabled multiple packets on the ARP queue.
1363
    This clashes with TCP queueing.
1364
 
1365
  2004-11-28 Leon Woestenberg 
1366
  * etharp.*: Fixed race condition from ARP request to ARP timeout.
1367
    Halved the ARP period, doubled the period counts.
1368
    ETHARP_MAX_PENDING now should be at least 2. This prevents
1369
    the counter from reaching 0 right away (which would allow
1370
    too little time for ARP responses to be received).
1371
 
1372
  2004-11-25 Leon Woestenberg 
1373
  * dhcp.c: Decline messages were not multicast but unicast.
1374
  * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
1375
    Do not try hard to insert arbitrary packet's source address,
1376
    etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
1377
    etharp_query() now always DOES call ETHARP_TRY_HARD so that users
1378
    querying an address will see it appear in the cache (DHCP could
1379
    suffer from this when a server invalidly gave an in-use address.)
1380
  * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
1381
    comparing network addresses (identifiers), not the network masks
1382
    themselves.
1383
  * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
1384
    IP address actually belongs to the network of the given interface.
1385
 
1386
  2004-11-24 Kieran Mansley 
1387
  * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
1388
 
1389
(STABLE-1_1_0-RC1)
1390
 
1391
  2004-10-16 Kieran Mansley 
1392
  * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
1393
    even if one is already pending, if the rcv_wnd is above a threshold
1394
    (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
1395
    delayed ACK in order to open the window if the stack is only receiving data.
1396
 
1397
  2004-09-12 Kieran Mansley 
1398
  * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
1399
 
1400
  2004-08-20 Tony Mountifield 
1401
  * etharp.c: Make sure the first pbuf queued on an ARP entry
1402
    is properly ref counted.
1403
 
1404
  2004-07-27 Tony Mountifield 
1405
  * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
1406
    warnings about comparison.
1407
  * pbuf.c: Stopped compiler complaining of empty if statement
1408
    when LWIP_DEBUGF() empty.  Closed an unclosed comment.
1409
  * tcp.c: Stopped compiler complaining of empty if statement
1410
    when LWIP_DEBUGF() empty.
1411
  * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
1412
  * inet.c: Added a couple of casts to quiet the compiler.
1413
    No need to test isascii(c) before isdigit(c) or isxdigit(c).
1414
 
1415
  2004-07-22 Tony Mountifield 
1416
  * inet.c: Made data types consistent in inet_ntoa().
1417
    Added casts for return values of checksum routines, to pacify compiler.
1418
  * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
1419
    Small corrections to some debugging statements, to pacify compiler.
1420
 
1421
  2004-07-21 Tony Mountifield 
1422
  * etharp.c: Removed spurious semicolon and added missing end-of-comment.
1423
  * ethernetif.c Updated low_level_output() to match prototype for
1424
    netif->linkoutput and changed low_level_input() similarly for consistency.
1425
  * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
1426
    of raw_recv() in raw.h and so avoid compiler error.
1427
  * sockets.c: Added trivial (int) cast to keep compiler happier.
1428
  * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
1429
 
1430
(STABLE-1_0_0)
1431
 
1432
  ++ Changes:
1433
 
1434
  2004-07-05 Leon Woestenberg 
1435
  * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
1436
    your cc.h file defines this either 1 or 0. If non-defined,
1437
    defaults to 1.
1438
  * .c: Added  and  includes where used.
1439
  * etharp.c: Made some array indices unsigned.
1440
 
1441
  2004-06-27 Leon Woestenberg 
1442
  * netif.*: Added netif_set_up()/down().
1443
  * dhcp.c: Changes to restart program flow.
1444
 
1445
  2004-05-07 Leon Woestenberg 
1446
  * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
1447
    single-pass lookup for different candidates. Should exploit locality.
1448
 
1449
  2004-04-29 Leon Woestenberg 
1450
  * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
1451
  * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
1452
  * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
1453
    the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
1454
 
1455
  ++ Bug fixes:
1456
 
1457
  2004-04-27 Leon Woestenberg 
1458
  * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
1459
    suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
1460
    non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
1461
    is to prefix the 14-bit Ethernet headers with two padding bytes.
1462
 
1463
  2004-04-23 Leon Woestenberg 
1464
  * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
1465
  * etharp.c: Fixed the case where the packet that initiates the ARP request
1466
    is not queued, and gets lost. Fixed the case where the packets destination
1467
    address is already known; we now always queue the packet and perform an ARP
1468
    request.
1469
 
1470
(STABLE-0_7_0)
1471
 
1472
  ++ Bug fixes:
1473
 
1474
  * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
1475
  * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
1476
  * Fixed two possible NULL references in rare cases.
1477
 
1478
(STABLE-0_6_6)
1479
 
1480
  ++ Bug fixes:
1481
 
1482
  * Fixed DHCP which did not include the IP address in DECLINE messages.
1483
 
1484
  ++ Changes:
1485
 
1486
  * etharp.c has been hauled over a bit.
1487
 
1488
(STABLE-0_6_5)
1489
 
1490
  ++ Bug fixes:
1491
 
1492
  * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
1493
  * Packets sent from ARP queue had invalid source hardware address.
1494
 
1495
  ++ Changes:
1496
 
1497
  * Pass-by ARP requests do now update the cache.
1498
 
1499
  ++ New features:
1500
 
1501
  * No longer dependent on ctype.h.
1502
  * New socket options.
1503
  * Raw IP pcb support.
1504
 
1505
(STABLE-0_6_4)
1506
 
1507
  ++ Bug fixes:
1508
 
1509
  * Some debug formatters and casts fixed.
1510
  * Numereous fixes in PPP.
1511
 
1512
  ++ Changes:
1513
 
1514
  * DEBUGF now is LWIP_DEBUGF
1515
  * pbuf_dechain() has been re-enabled.
1516
  * Mentioned the changed use of CVS branches in README.
1517
 
1518
(STABLE-0_6_3)
1519
 
1520
  ++ Bug fixes:
1521
 
1522
  * Fixed pool pbuf memory leak in pbuf_alloc().
1523
    Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
1524
    Reported by Savin Zlobec.
1525
 
1526
  * PBUF_POOL chains had their tot_len field not set for non-first
1527
    pbufs. Fixed in pbuf_alloc().
1528
 
1529
  ++ New features:
1530
 
1531
  * Added PPP stack contributed by Marc Boucher
1532
 
1533
  ++ Changes:
1534
 
1535
  * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
1536
 
1537
  * ARP queueuing now queues the latest packet instead of the first.
1538
    This is the RFC recommended behaviour, but can be overridden in
1539
    lwipopts.h.
1540
 
1541
(0.6.2)
1542
 
1543
  ++ Bugfixes:
1544
 
1545
  * TCP has been fixed to deal with the new use of the pbuf->ref
1546
    counter.
1547
 
1548
  * DHCP dhcp_inform() crash bug fixed.
1549
 
1550
  ++ Changes:
1551
 
1552
  * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
1553
    pbuf_refresh(). This has sped up pbuf pool operations considerably.
1554
    Implemented by David Haas.
1555
 
1556
(0.6.1)
1557
 
1558
  ++ New features:
1559
 
1560
  * The packet buffer implementation has been enhanced to support
1561
    zero-copy and copy-on-demand for packet buffers which have their
1562
    payloads in application-managed memory.
1563
    Implemented by David Haas.
1564
 
1565
    Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
1566
    if an outgoing packet can be directly sent on the link, or perform
1567
    a copy-on-demand when necessary.
1568
 
1569
    The application can safely assume the packet is sent, and the RAM
1570
    is available to the application directly after calling udp_send()
1571
    or similar function.
1572
 
1573
  ++ Bugfixes:
1574
 
1575
  * ARP_QUEUEING should now correctly work for all cases, including
1576
    PBUF_REF.
1577
    Implemented by Leon Woestenberg.
1578
 
1579
  ++ Changes:
1580
 
1581
  * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
1582
    to a '0.0.0.0' IP address.
1583
 
1584
  * The packet buffer implementation is changed. The pbuf->ref counter
1585
    meaning has changed, and several pbuf functions have been
1586
    adapted accordingly.
1587
 
1588
  * netif drivers have to be changed to set the hardware address length field
1589
    that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
1590
    See the contrib/ports/c16x cs8900 driver as a driver example.
1591
 
1592
  * netif's have a dhcp field that must be initialized to NULL by the driver.
1593
    See the contrib/ports/c16x cs8900 driver as a driver example.
1594
 
1595
(0.5.x) This file has been unmaintained up to 0.6.1. All changes are
1596
  logged in CVS but have not been explained here.
1597
 
1598
(0.5.3) Changes since version 0.5.2
1599
 
1600
  ++ Bugfixes:
1601
 
1602
  * memp_malloc(MEMP_API_MSG) could fail with multiple application
1603
    threads because it wasn't protected by semaphores.
1604
 
1605
  ++ Other changes:
1606
 
1607
  * struct ip_addr now packed.
1608
 
1609
  * The name of the time variable in arp.c has been changed to ctime
1610
    to avoid conflicts with the time() function.
1611
 
1612
(0.5.2) Changes since version 0.5.1
1613
 
1614
  ++ New features:
1615
 
1616
  * A new TCP function, tcp_tmr(), now handles both TCP timers.
1617
 
1618
  ++ Bugfixes:
1619
 
1620
  * A bug in tcp_parseopt() could cause the stack to hang because of a
1621
    malformed TCP option.
1622
 
1623
  * The address of new connections in the accept() function in the BSD
1624
    socket library was not handled correctly.
1625
 
1626
  * pbuf_dechain() did not update the ->tot_len field of the tail.
1627
 
1628
  * Aborted TCP connections were not handled correctly in all
1629
    situations.
1630
 
1631
  ++ Other changes:
1632
 
1633
  * All protocol header structs are now packed.
1634
 
1635
  * The ->len field in the tcp_seg structure now counts the actual
1636
    amount of data, and does not add one for SYN and FIN segments.
1637
 
1638
(0.5.1) Changes since version 0.5.0
1639
 
1640
  ++ New features:
1641
 
1642
  * Possible to run as a user process under Linux.
1643
 
1644
  * Preliminary support for cross platform packed structs.
1645
 
1646
  * ARP timer now implemented.
1647
 
1648
  ++ Bugfixes:
1649
 
1650
  * TCP output queue length was badly initialized when opening
1651
    connections.
1652
 
1653
  * TCP delayed ACKs were not sent correctly.
1654
 
1655
  * Explicit initialization of BSS segment variables.
1656
 
1657
  * read() in BSD socket library could drop data.
1658
 
1659
  * Problems with memory alignment.
1660
 
1661
  * Situations when all TCP buffers were used could lead to
1662
    starvation.
1663
 
1664
  * TCP MSS option wasn't parsed correctly.
1665
 
1666
  * Problems with UDP checksum calculation.
1667
 
1668
  * IP multicast address tests had endianess problems.
1669
 
1670
  * ARP requests had wrong destination hardware address.
1671
 
1672
  ++ Other changes:
1673
 
1674
  * struct eth_addr changed from u16_t[3] array to u8_t[6].
1675
 
1676
  * A ->linkoutput() member was added to struct netif.
1677
 
1678
  * TCP and UDP ->dest_* struct members where changed to ->remote_*.
1679
 
1680
  * ntoh* macros are now null definitions for big endian CPUs.
1681
 
1682
(0.5.0) Changes since version 0.4.2
1683
 
1684
  ++ New features:
1685
 
1686
  * Redesigned operating system emulation layer to make porting easier.
1687
 
1688
  * Better control over TCP output buffers.
1689
 
1690
  * Documenation added.
1691
 
1692
  ++ Bugfixes:
1693
 
1694
  * Locking issues in buffer management.
1695
 
1696
  * Bugfixes in the sequential API.
1697
 
1698
  * IP forwarding could cause memory leakage. This has been fixed.
1699
 
1700
  ++ Other changes:
1701
 
1702
  * Directory structure somewhat changed; the core/ tree has been
1703
    collapsed.
1704
 
1705
(0.4.2) Changes since version 0.4.1
1706
 
1707
  ++ New features:
1708
 
1709
  * Experimental ARP implementation added.
1710
 
1711
  * Skeleton Ethernet driver added.
1712
 
1713
  * Experimental BSD socket API library added.
1714
 
1715
  ++ Bugfixes:
1716
 
1717
  * In very intense situations, memory leakage could occur. This has
1718
    been fixed.
1719
 
1720
  ++ Other changes:
1721
 
1722
  * Variables named "data" and "code" have been renamed in order to
1723
    avoid name conflicts in certain compilers.
1724
 
1725
  * Variable++ have in appliciable cases been translated to ++variable
1726
    since some compilers generate better code in the latter case.
1727
 
1728
(0.4.1) Changes since version 0.4
1729
 
1730
  ++ New features:
1731
 
1732
  * TCP: Connection attempts time out earlier than data
1733
    transmissions. Nagle algorithm implemented. Push flag set on the
1734
    last segment in a burst.
1735
 
1736
  * UDP: experimental support for UDP-Lite extensions.
1737
 
1738
  ++ Bugfixes:
1739
 
1740
  * TCP: out of order segments were in some cases handled incorrectly,
1741
    and this has now been fixed. Delayed acknowledgements was broken
1742
    in 0.4, has now been fixed. Binding to an address that is in use
1743
    now results in an error. Reset connections sometimes hung an
1744
    application; this has been fixed.
1745
 
1746
  * Checksum calculation sometimes failed for chained pbufs with odd
1747
    lengths. This has been fixed.
1748
 
1749
  * API: a lot of bug fixes in the API. The UDP API has been improved
1750
    and tested. Error reporting and handling has been
1751
    improved. Logical flaws and race conditions for incoming TCP
1752
    connections has been found and removed.
1753
 
1754
  * Memory manager: alignment issues. Reallocating memory sometimes
1755
    failed, this has been fixed.
1756
 
1757
  * Generic library: bcopy was flawed and has been fixed.
1758
 
1759
  ++ Other changes:
1760
 
1761
  * API: all datatypes has been changed from generic ones such as
1762
    ints, to specified ones such as u16_t. Functions that return
1763
    errors now have the correct type (err_t).
1764
 
1765
  * General: A lot of code cleaned up and debugging code removed. Many
1766
    portability issues have been fixed.
1767
 
1768
  * The license was changed; the advertising clause was removed.
1769
 
1770
  * C64 port added.
1771
 
1772
  * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
1773
    Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
1774
    fixing bugs!
1775
 
1776
(0.4) Changes since version 0.3.1
1777
 
1778
  * Memory management has been radically changed; instead of
1779
    allocating memory from a shared heap, memory for objects that are
1780
    rapidly allocated and deallocated is now kept in pools. Allocation
1781
    and deallocation from those memory pools is very fast. The shared
1782
    heap is still present but is used less frequently.
1783
 
1784
  * The memory, memory pool, and packet buffer subsystems now support
1785
    4-, 2-, or 1-byte alignment.
1786
 
1787
  * "Out of memory" situations are handled in a more robust way.
1788
 
1789
  * Stack usage has been reduced.
1790
 
1791
  * Easier configuration of lwIP parameters such as memory usage,
1792
    TTLs, statistics gathering, etc. All configuration parameters are
1793
    now kept in a single header file "lwipopts.h".
1794
 
1795
  * The directory structure has been changed slightly so that all
1796
    architecture specific files are kept under the src/arch
1797
    hierarchy.
1798
 
1799
  * Error propagation has been improved, both in the protocol modules
1800
    and in the API.
1801
 
1802
  * The code for the RTXC architecture has been implemented, tested
1803
    and put to use.
1804
 
1805
  * Bugs have been found and corrected in the TCP, UDP, IP, API, and
1806
    the Internet checksum modules.
1807
 
1808
  * Bugs related to porting between a 32-bit and a 16-bit architecture
1809
    have been found and corrected.
1810
 
1811
  * The license has been changed slightly to conform more with the
1812
    original BSD license, including the advertisement clause.
1813
 
1814
(0.3.1) Changes since version 0.3
1815
 
1816
  * Fix of a fatal bug in the buffer management. Pbufs with allocated
1817
    RAM never returned the RAM when the pbuf was deallocated.
1818
 
1819
  * TCP congestion control, window updates and retransmissions did not
1820
    work correctly. This has now been fixed.
1821
 
1822
  * Bugfixes in the API.
1823
 
1824
(0.3) Changes since version 0.2
1825
 
1826
  * New and improved directory structure. All include files are now
1827
    kept in a dedicated include/ directory.
1828
 
1829
  * The API now has proper error handling. A new function,
1830
    netconn_err(), now returns an error code for the connection in
1831
    case of errors.
1832
 
1833
  * Improvements in the memory management subsystem. The system now
1834
    keeps a pointer to the lowest free memory block. A new function,
1835
    mem_malloc2() tries to allocate memory once, and if it fails tries
1836
    to free some memory and retry the allocation.
1837
 
1838
  * Much testing has been done with limited memory
1839
    configurations. lwIP now does a better job when overloaded.
1840
 
1841
  * Some bugfixes and improvements to the buffer (pbuf) subsystem.
1842
 
1843
  * Many bugfixes in the TCP code:
1844
 
1845
    - Fixed a bug in tcp_close().
1846
 
1847
    - The TCP receive window was incorrectly closed when out of
1848
      sequence segments was received. This has been fixed.
1849
 
1850
    - Connections are now timed-out of the FIN-WAIT-2 state.
1851
 
1852
    - The initial congestion window could in some cases be too
1853
      large. This has been fixed.
1854
 
1855
    - The retransmission queue could in some cases be screwed up. This
1856
      has been fixed.
1857
 
1858
    - TCP RST flag now handled correctly.
1859
 
1860
    - Out of sequence data was in some cases never delivered to the
1861
      application. This has been fixed.
1862
 
1863
    - Retransmitted segments now contain the correct acknowledgment
1864
      number and advertised window.
1865
 
1866
    - TCP retransmission timeout backoffs are not correctly computed
1867
      (ala BSD). After a number of retransmissions, TCP now gives up
1868
      the connection.
1869
 
1870
  * TCP connections now are kept on three lists, one for active
1871
    connections, one for listening connections, and one for
1872
    connections that are in TIME-WAIT. This greatly speeds up the fast
1873
    timeout processing for sending delayed ACKs.
1874
 
1875
  * TCP now provides proper feedback to the application when a
1876
    connection has been successfully set up.
1877
 
1878
  * More comments have been added to the code. The code has also been
1879
    somewhat cleaned up.
1880
 
1881
(0.2) Initial public release.

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