1 HISTORY 2 3 (CVS HEAD) 4 5 * [Enter new changes just after this line - do not remove this line] 6 7 ++ New features: 8 9 10 ++ Bugfixes: 11 12 13 14 15 (STABLE-1.4.0) 16 17 ++ New features: 18 19 2011-03-27: Simon Goldschmidt 20 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and 21 calculate it in tcp_zero_window_probe (the only place where it was used). 22 23 2010-11-21: Simon Goldschmidt 24 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif 25 (fixes bug #31525). 26 27 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage) 28 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for 29 IP_MULTICAST_LOOP at socket- and raw-API level. 30 31 2010-06-16: Simon Goldschmidt 32 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow 33 link-layer-addressed UDP traffic to be received while a netif is down (just 34 like DHCP during configuration) 35 36 2010-05-22: Simon Goldschmidt 37 * many many files: bug #27352: removed packing from ip_addr_t, the packed 38 version is now only used in protocol headers. Added global storage for 39 current src/dest IP address while in input functions. 40 41 2010-05-16: Simon Goldschmidt 42 * def.h: task #10391: Add preprocessor-macros for compile-time htonl 43 calculation (and use them throughout the stack where applicable) 44 45 2010-05-16: Simon Goldschmidt 46 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool 47 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h) 48 49 2010-05-16: Simon Goldschmidt 50 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own 51 MEMP pool instead of the heap 52 53 2010-05-13: Simon Goldschmidt 54 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added 55 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast 56 packets to more than one pcb. 57 58 2010-05-02: Simon Goldschmidt 59 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending 60 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1 61 62 2010-04-30: Simon Goldschmidt 63 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that 64 take a precalculated checksum, added pbuf_fill_chksum() to copy data 65 into a pbuf and at the same time calculating the checksum for that data 66 67 2010-04-29: Simon Goldschmidt 68 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying 69 2-byte-aligned IP addresses and MAC addresses 70 71 2010-04-28: Patch by Bill Auerbach 72 * ip.c: Inline generating IP checksum to save a function call 73 74 2010-04-14: Simon Goldschmidt 75 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the 76 tcpip_thread processes messages or timeouts to implement a watchdog. 77 78 2010-03-28: Simon Goldschmidt 79 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing 80 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1 81 82 2010-03-27: Simon Goldschmidt 83 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/ 84 etharp_query to prevent unnecessary function calls (inspired by 85 patch #7135). 86 87 2010-03-20: Simon Goldschmidt 88 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code 89 since the linker cannot do this automatically to save space. 90 91 2010-03-20: Simon Goldschmidt 92 * opt.h, etharp.c/.h: Added support for static ARP table entries 93 94 2010-03-14: Simon Goldschmidt 95 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum 96 when creating TCP segments, not when (re-)transmitting them. 97 98 2010-03-07: Simon Goldschmidt 99 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list 100 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code. 101 This should speed up receiving data on sockets as the select code in 102 event_callback is only executed when select is waiting. 103 104 2010-03-06: Simon Goldschmidt 105 * tcp_out.c: task #7013 (Create option to have all packets delivered to 106 netif->output in one piece): Always copy to try to create single pbufs 107 in tcp_write. 108 109 2010-03-06: Simon Goldschmidt 110 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv 111 by not allocating a netbuf): added function netconn_recv_tcp_pbuf() 112 for tcp netconns to receive pbufs, not netbufs; use that function 113 for tcp sockets. 114 115 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt 116 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040: 117 Work on tcp_enqueue: Don't waste memory when chaining segments, 118 added option TCP_OVERSIZE to prevent creating many small pbufs when 119 calling tcp_write with many small blocks of data. Instead, pbufs are 120 allocated larger than needed and the space is used for later calls to 121 tcp_write. 122 123 2010-02-21: Simon Goldschmidt 124 * stats.c/.h: Added const char* name to mem- and memp-stats for easier 125 debugging. 126 127 2010-02-21: Simon Goldschmidt 128 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal 129 implementation of tcp to make API usage cleare to application programmers 130 131 2010-02-14: Simon Goldschmidt/Stephane Lesage 132 * ip_addr.h: Improved some defines working on ip addresses, added faster 133 macro to copy addresses that cannot be NULL 134 135 2010-02-13: Simon Goldschmidt 136 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non- 137 blocking send operation) 138 139 2010-02-12: Simon Goldschmidt 140 * sockets.c/.h: Added a minimal version of posix fctl() to have a 141 standardised way to set O_NONBLOCK for nonblocking sockets. 142 143 2010-02-12: Simon Goldschmidt 144 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated 145 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip 146 and dhcp work with user-allocated structs instead of callin mem_malloc 147 148 2010-02-12: Simon Goldschmidt/Jeff Barber 149 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has 150 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT 151 152 2010-02-12: Simon Goldschmidt 153 * sys layer: task #10139 (Prefer statically allocated memory): converted 154 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t; 155 converted sys_mbox_new/sys_sem_new to take pointers and return err_t; 156 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX 157 to let sys.h use binary semaphores instead of mutexes - as before) 158 159 2010-02-09: Simon Goldschmidt (Simon Kallweit) 160 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085 161 (Restart system timeout handling) 162 163 2010-02-09: Simon Goldschmidt 164 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into 165 netif.c) - loopif does not have to be created by the port any more, 166 just define LWIP_HAVE_LOOPIF to 1. 167 168 2010-02-08: Simon Goldschmidt 169 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa 170 inet_ntoa_r/ipaddr_ntoa_r 171 172 2010-02-08: Simon Goldschmidt 173 * netif.h: Added netif_s/get_igmp_mac_filter() macros 174 175 2010-02-05: Simon Goldschmidt 176 * netif.h: Added function-like macros to get/set the hostname on a netif 177 178 2010-02-04: Simon Goldschmidt 179 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to 180 make changing the actual implementation behind the typedef easier. 181 182 2010-02-01: Simon Goldschmidt 183 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool 184 for allocating memory when getaddrinfo() is called. 185 186 2010-01-31: Simon Goldschmidt 187 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse 188 them once instead of parsing for every option. This also removes 189 the need for mem_malloc from dhcp_recv and makes it possible to 190 correctly retrieve the BOOTP file. 191 192 2010-01-30: simon Goldschmidt 193 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect 194 the sockets array. 195 196 2010-01-29: Simon Goldschmidt (patch by Laura Garrett) 197 * api.h, api_msg.c, sockets.c: Added except set support in select 198 (patch #6860) 199 200 2010-01-29: Simon Goldschmidt (patch by Laura Garrett) 201 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c: 202 Add non-blocking support for connect (partly from patch #6860), 203 plus many cleanups in socket & netconn API. 204 205 2010-01-27: Simon Goldschmidt 206 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding 207 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605 208 209 2010-01-26: Simon Goldschmidt 210 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools. 211 212 2010-01-14: Simon Goldschmidt 213 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback 214 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback() 215 216 2010-01-13: Simon Goldschmidt 217 * mem.c: The heap now may be moved to user-defined memory by defining 218 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address 219 (patch #6966 and bug #26133) 220 221 2010-01-10: Simon Goldschmidt (Bill Auerbach) 222 * opt.h, memp.c: patch #6822 (Add option to place memory pools in 223 separate arrays) 224 225 2010-01-10: Simon Goldschmidt 226 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define 227 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h) 228 229 2009-12-31: Simon Goldschmidt 230 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h 231 added timers.c/.h: Separated timer implementation from semaphore/mbox 232 implementation, moved timer implementation to timers.c/.h, timers are 233 now only called from tcpip_thread or by explicitly checking them. 234 (TASK#7235) 235 236 2009-12-27: Simon Goldschmidt 237 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option 238 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE) 239 240 241 ++ Bugfixes: 242 243 2011-04-20: Simon Goldschmidt 244 * sys_arch.txt: sys_arch_timeouts() is not needed any more. 245 246 2011-04-13: Simon Goldschmidt 247 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by 248 using ports in the IANA private/dynamic range (49152 through 65535). 249 250 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl: 251 * etharp.h/.c: Fixed broken VLAN support. 252 253 2011-03-27: Simon Goldschmidt 254 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp 255 pcbs) by checking if the pcb was bound (local_port != 0). 256 257 2011-03-27: Simon Goldschmidt 258 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice) 259 260 2011-03-27: Simon Goldschmidt 261 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and 262 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1. 263 264 2011-03-27: Simon Goldschmidt 265 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route 266 is present never times out) by starting retransmission timer before checking 267 route. 268 269 2011-03-22: Simon Goldschmidt 270 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only 271 calling sio_read_abort() if the file descriptor is valid. 272 273 2011-03-14: Simon Goldschmidt 274 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect 275 more than once can render a socket useless) since it mainly involves changing 276 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal. 277 278 2011-03-13: Simon Goldschmidt 279 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing 280 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN: 281 use EALRADY instead of -1 282 283 2011-03-13: Simon Goldschmidt 284 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the 285 connection has been aborted by err_tcp (since this is not a normal closing 286 procedure). 287 288 2011-03-13: Simon Goldschmidt 289 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind 290 with pcb->state != CLOSED 291 292 2011-02-17: Simon Goldschmidt 293 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in 294 documentation 295 296 2011-02-17: Simon Goldschmidt 297 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability. 298 299 2011-01-24: Simon Goldschmidt 300 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems 301 302 2010-12-02: Simon Goldschmidt 303 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal. 304 305 2010-11-23: Simon Goldschmidt 306 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for 307 LWIP_SO_RCVBUF and ioctl/FIONREAD. 308 309 2010-11-23: Simon Goldschmidt 310 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at 311 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet. 312 313 2010-11-23: Simon Goldschmidt 314 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after 315 refusing 'refused_data' again. 316 317 2010-11-22: Simon Goldschmidt 318 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS 319 after a successful nonblocking connection. 320 321 2010-11-22: Simon Goldschmidt 322 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr 323 must be sent link-local 324 325 2010-11-22: Simon Goldschmidt 326 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for 327 LWIP_TIMERS==0 328 329 2010-11-20: Simon Goldschmidt 330 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number 331 332 2010-11-20: Simon Goldschmidt 333 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to 334 resemble other stacks. 335 336 2010-11-20: Simon Goldschmidt 337 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else 338 no-copy TCP writes will never succeed. 339 340 2010-11-20: Simon Goldschmidt 341 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does 342 not match documentation: return ERR_ARG instead of ERR_VAL if not 343 initialized or wrong argument. 344 345 2010-10-20: Simon Goldschmidt 346 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16 347 348 2010-10-05: Simon Goldschmidt 349 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when 350 replugging the network cable after an AutoIP address was assigned. 351 352 2010-08-10: Simon Goldschmidt 353 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs 354 355 2010-08-03: Simon Goldschmidt 356 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625) 357 358 2010-08-01: Simon Goldschmidt (patch by Greg Renda) 359 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big 360 endian architectures) 361 362 2010-07-28: Simon Goldschmidt 363 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP 364 disabled. 365 366 2010-07-27: Simon Goldschmidt 367 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no 368 harm but never did anything 369 370 2010-07-21: Simon Goldschmidt 371 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not 372 add IP options) 373 374 2010-07-16: Kieran Mansley 375 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator 376 377 2010-07-10: Simon Goldschmidt 378 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options 379 380 2010-06-30: Simon Goldschmidt 381 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in 382 netconn_delete) 383 384 2010-06-28: Kieran Mansley 385 * timers.c remove unportable printing of C function pointers 386 387 2010-06-24: Simon Goldschmidt 388 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag 389 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading 390 391 2010-06-24: Simon Goldschmidt 392 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly 393 implemented shutdown at socket level. 394 395 2010-06-21: Simon Goldschmidt 396 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has 397 problems with zero-copy DMA MACs) by adding custom pbufs and implementing 398 custom pbufs that reference other (original) pbufs. Additionally set 399 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side. 400 401 2010-06-15: Simon Goldschmidt 402 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses 403 404 2010-06-14: Simon Goldschmidt 405 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses 406 407 2010-06-12: Simon Goldschmidt 408 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop 409 state 410 411 2010-05-17: Simon Goldschmidt 412 * netdb.c: Correctly NULL-terminate h_addr_list 413 414 2010-05-16: Simon Goldschmidt 415 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent 416 "symbol already defined" i.e. when linking to winsock 417 418 2010-05-05: Simon Goldschmidt 419 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may 420 overflow) 421 422 2010-04-21: Simon Goldschmidt 423 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening 424 connection) 425 426 2010-03-28: Luca Ceresoli 427 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers 428 429 2010-03-27: Luca Ceresoli 430 * mib2.c: patch #7130: remove meaningless const qualifiers 431 432 2010-03-26: Simon Goldschmidt 433 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too 434 435 2010-03-26: Simon Goldschmidt 436 * various files: Fixed compiling with different options disabled (TCP/UDP), 437 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled 438 439 2010-03-25: Simon Goldschmidt 440 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly 441 442 2010-03-25: Simon Goldschmidt 443 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side 444 overrunning our rcv_wnd in ooseq case. 445 446 2010-03-22: Simon Goldschmidt 447 * tcp.c: tcp_listen() did not copy the pcb's prio. 448 449 2010-03-19: Simon Goldschmidt 450 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set 451 452 2010-03-14: Simon Goldschmidt 453 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports 454 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h 455 and basing PBUF_LINK_HLEN on it. 456 457 2010-03-08: Simon Goldschmidt 458 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections 459 when assiging routable address): when checking incoming packets and 460 aborting existing connection on address change, filter out link-local 461 addresses. 462 463 2010-03-06: Simon Goldschmidt 464 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING 465 466 2010-03-06: Simon Goldschmidt 467 * ipv4/ip.c: Don't try to forward link-local addresses 468 469 2010-03-06: Simon Goldschmidt 470 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal- 471 addresses to gw 472 473 2010-03-05: Simon Goldschmidt 474 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type 475 and state. 476 477 2010-03-05: Simon Goldschmidt 478 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split 479 into multiple calls to tcp_write. 480 481 2010-02-21: Simon Goldschmidt 482 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep 483 the implementation of DNS_USES_STATIC_BUF==1) 484 485 2010-02-20: Simon Goldschmidt 486 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement 487 close() vs. shutdown(). Now the application does not get any more 488 recv callbacks after calling tcp_close(). Added tcp_shutdown(). 489 490 2010-02-19: Simon Goldschmidt 491 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent 492 confusion with realloc() 493 494 2010-02-15: Simon Goldschmidt/Stephane Lesage 495 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK 496 (fixes bug #28899) 497 498 2010-02-14: Simon Goldschmidt 499 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with 500 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and 501 admin-status of a netif are up 502 503 2010-02-14: Simon Goldschmidt 504 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet 505 reception and is not really necessary 506 507 2010-02-14: Simon Goldschmidt 508 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a 509 request was directed as us (RFC 826, Packet Reception), otherwise 510 only update existing entries; internalized some functions 511 512 2010-02-14: Simon Goldschmidt 513 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be 514 disabled on netif used for PPPoE) by adding a new netif flag 515 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet 516 device but prevents usage of ARP (so that ethernet_input can be used 517 for PPPoE). 518 519 2010-02-12: Simon Goldschmidt 520 * netif.c: netif_set_link_up/down: only do something if the link state 521 actually changes 522 523 2010-02-12: Simon Goldschmidt/Stephane Lesage 524 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking 525 connect) 526 527 2010-02-12: Simon Goldschmidt 528 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h) 529 530 2010-02-09: Simon Goldschmidt 531 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110 532 (recv() makes receive window update for data that wasn't received by 533 application) 534 535 2010-02-09: Simon Goldschmidt/Stephane Lesage 536 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out 537 or any netconn_recv() error) 538 539 2010-02-09: Simon Goldschmidt 540 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets) 541 542 2010-02-09: Simon Goldschmidt 543 * netif.c: For loopback packets, adjust the stats- and snmp-counters 544 for the loopback netif. 545 546 2010-02-08: Simon Goldschmidt 547 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity 548 since they are not used anywhere else. 549 550 2010-02-08: Simon Goldschmidt (Stphane Lesage) 551 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats 552 (patch from bug #28798) 553 554 2010-02-08: Simon Goldschmidt (Stphane Lesage) 555 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and 556 another bug when LWIP_RAND() returns zero. 557 558 2010-02-04: Simon Goldschmidt 559 * nearly every file: Use macros defined in ip_addr.h (some of them new) 560 to work with IP addresses (preparation for bug #27352 - Change ip_addr 561 from struct to typedef (u32_t) - and better code). 562 563 2010-01-31: Simon Goldschmidt 564 * netif.c: Don't call the link-callback from netif_set_up/down() since 565 this invalidly retriggers DHCP. 566 567 2010-01-29: Simon Goldschmidt 568 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the 569 portability file inet.h and its contents from the stack: moved htonX- 570 functions to def.h (and the new def.c - they are not ipv4 dependent), 571 let inet.h depend on ip_addr.h and not the other way round. 572 This fixes bug #28732. 573 574 2010-01-28: Kieran Mansley 575 * tcp.c: Ensure ssthresh >= 2*MSS 576 577 2010-01-27: Simon Goldschmidt 578 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv 579 callback can lead to accessing unallocated memory. As a consequence, 580 ERR_ABRT means the application has called tcp_abort()! 581 582 2010-01-25: Simon Goldschmidt 583 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY 584 not implemented in SNMP): write-only or not-accessible are still 585 returned by getnext (though not by get) 586 587 2010-01-24: Simon Goldschmidt 588 * snmp: Renamed the private mib node from 'private' to 'mib_private' to 589 not use reserved C/C++ keywords 590 591 2010-01-23: Simon Goldschmidt 592 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less 593 than 1 ms 594 595 2010-01-21: Simon Goldschmidt 596 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called 597 if tcp_enqueue fails) both in raw- and netconn-API 598 599 2010-01-19: Simon Goldschmidt 600 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp 601 602 2010-01-18: Iordan Neshev/Simon Goldschmidt 603 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some 604 bugfix backports from 2.4.x. 605 606 2010-01-18: Simon Goldschmidt 607 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong 608 609 2010-01-17: Simon Goldschmidt 610 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c): 611 task #10102: "netconn: clean up conn->err threading issues" by adding 612 error return value to struct api_msg_msg 613 614 2010-01-17: Simon Goldschmidt 615 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept() 616 to return err_t (bugs #27709 and #28087) 617 618 2010-01-14: Simon Goldschmidt 619 * ...: Use typedef for function prototypes throughout the stack. 620 621 2010-01-13: Simon Goldschmidt 622 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive 623 window = 0) by correctly draining recvmbox/acceptmbox 624 625 2010-01-11: Simon Goldschmidt 626 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in 627 erroneous callbacks) by copying the code from recent pppd 628 629 2010-01-10: Simon Goldschmidt 630 * raw.c: Fixed bug #28506 (raw_bind should filter received packets) 631 632 2010-01-10: Simon Goldschmidt 633 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)()) 634 635 2010-01-08: Simon Goldschmidt 636 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535) 637 638 2010-01-08: Simon Goldschmidt 639 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string 640 passed to dns_local_addhost() might be volatile 641 642 2010-01-07: Simon Goldschmidt 643 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too 644 645 2010-01-06: Simon Goldschmidt 646 * netdb.h: Fixed bug #28496: missing include guards in netdb.h 647 648 2009-12-31: Simon Goldschmidt 649 * many ppp files: Reorganised PPP source code from ucip structure to pppd 650 structure to easily compare our code against the pppd code (around v2.3.1) 651 652 2009-12-27: Simon Goldschmidt 653 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted 654 unit test 655 656 657 (STABLE-1.3.2) 658 659 ++ New features: 660 661 2009-10-27 Simon Goldschmidt/Stephan Lesage 662 * netifapi.c/.h: Added netifapi_netif_set_addr() 663 664 2009-10-07 Simon Goldschmidt/Fabian Koch 665 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to 666 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO) 667 668 2009-08-26 Simon Goldschmidt/Simon Kallweit 669 * slipif.c/.h: bug #26397: SLIP polling support 670 671 2009-08-25 Simon Goldschmidt 672 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN), 673 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK. 674 675 2009-08-25 Simon Goldschmidt 676 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*) 677 678 2009-08-24 Jakob Stoklund Olesen 679 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond 680 to netif_set_link_up(). 681 682 2009-08-23 Simon Goldschmidt 683 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state 684 to a human-readable string. 685 686 ++ Bugfixes: 687 688 2009-12-24: Kieran Mansley 689 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing 690 (BUG#28241) 691 692 2009-12-06: Simon Goldschmidt 693 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can 694 be statically allocated (like in ucip) 695 696 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev) 697 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT 698 699 2009-12-03: Simon Goldschmidt 700 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit 701 could have non-zero length 702 703 2009-12-02: Simon Goldschmidt 704 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting 705 tcp_input_pcb until after calling the pcb's callbacks 706 707 2009-11-29: Simon Goldschmidt 708 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of- 709 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code 710 711 2009-11-29: Simon Goldschmidt 712 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by 713 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty 714 715 2009-11-26: Simon Goldschmidt 716 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending 717 segment 718 719 2009-11-26: Simon Goldschmidt 720 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle 721 algorithm at PCB level 722 723 2009-11-22: Simon Goldschmidt 724 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent 725 726 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach) 727 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when 728 reusing time-wait pcb 729 730 2009-11-20: Simon Goldschmidt (patch by Albert Bartel) 731 * sockets.c: Fixed bug #28062: Data received directly after accepting 732 does not wake up select 733 734 2009-11-11: Simon Goldschmidt 735 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo) 736 737 2009-10-30: Simon Goldschmidt 738 * opt.h: Increased default value for TCP_MSS to 536, updated default 739 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working. 740 741 2009-10-28: Kieran Mansley 742 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code 743 to follow algorithm from TCP/IP Illustrated 744 745 2009-10-27: Kieran Mansley 746 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK 747 748 2009-10-25: Simon Goldschmidt 749 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if 750 pcb->recv is NULL to keep rcv_wnd correct) 751 752 2009-10-25: Simon Goldschmidt 753 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state 754 755 2009-10-23: Simon Goldschmidt (David Empson) 756 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes 757 758 2009-10-21: Simon Goldschmidt 759 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and 760 trailing 1 byte len (SYN/FIN) 761 762 2009-10-21: Simon Goldschmidt 763 * tcp_out.c: Fixed bug #27315: zero window probe and FIN 764 765 2009-10-19: Simon Goldschmidt 766 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change 767 conditional code to assert where applicable), check pbuf length before 768 testing for valid reply 769 770 2009-10-19: Simon Goldschmidt 771 * dhcp.c: Removed most calls to udp_connect since they aren't necessary 772 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY. 773 774 2009-10-16: Simon Goldschmidt 775 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop 776 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is 777 enabled 778 779 2009-10-15: Simon Goldschmidt (Oleg Tyshev) 780 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit 781 782 2009-10-15: Simon Goldschmidt 783 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv() 784 timeout 785 786 2009-10-15: Simon Goldschmidt 787 * autoip.c: Fixed bug #27704: autoip starts with wrong address 788 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead 789 of network byte order 790 791 2009-10-11 Simon Goldschmidt (Jrg Kesten) 792 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments 793 which are not consecutive when retransmitting unacked segments 794 795 2009-10-09 Simon Goldschmidt 796 * opt.h: Fixed default values of some stats to only be enabled if used 797 Fixes bug #27338: sys_stats is defined when NO_SYS = 1 798 799 2009-08-30 Simon Goldschmidt 800 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK 801 function" by checking for loopback before calling ip_frag 802 803 2009-08-25 Simon Goldschmidt 804 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0 805 806 2009-08-23 Simon Goldschmidt 807 * ppp.c: bug #27078: Possible memory leak in pppInit() 808 809 2009-08-23 Simon Goldschmidt 810 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result 811 is error. 812 813 2009-08-23 Simon Goldschmidt 814 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF 815 Fixed wrong parenthesis, added check in init.c 816 817 2009-08-23 Simon Goldschmidt 818 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms 819 820 2009-08-23 Simon Goldschmidt 821 * many ppp files: bug #27267: Added include to string.h where needed 822 823 2009-08-23 Simon Goldschmidt 824 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian) 825 826 827 (STABLE-1.3.1) 828 829 ++ New features: 830 831 2009-05-10 Simon Goldschmidt 832 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option 833 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only 834 one pbuf to help MACs that don't support scatter-gather DMA. 835 836 2009-05-09 Simon Goldschmidt 837 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming 838 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN 839 840 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen 841 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive 842 extended info about the currently received packet. 843 844 2009-04-27 Simon Goldschmidt 845 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1 846 847 2009-04-25 Simon Goldschmidt 848 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next 849 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS). 850 851 2009-04-21 Simon Goldschmidt 852 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static 853 hosts table. New configuration options DNS_LOCAL_HOSTLIST and 854 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined 855 as an external function for lookup. 856 857 2009-04-15 Simon Goldschmidt 858 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique 859 860 2009-03-31 Kieran Mansley 861 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for 862 TCP timestamp options, off by default. Rework tcp_enqueue() to 863 take option flags rather than specified option data 864 865 2009-02-18 Simon Goldschmidt 866 * cc.h: Added printf formatter for size_t: SZT_F 867 868 2009-02-16 Simon Goldschmidt (patch by Rishi Khan) 869 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast 870 pings 871 872 2009-02-12 Simon Goldschmidt 873 * init.h: Added LWIP_VERSION to get the current version of the stack 874 875 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler) 876 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead 877 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc 878 is otherwise used) 879 880 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach) 881 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial() 882 is only used by UDPLITE at present, so conditionalise it. 883 884 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli) 885 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP 886 "seed" address. This should reduce AUTOIP conflicts if 887 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden. 888 889 2008-10-02 Jonathan Larmour and Rishi Khan 890 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking 891 socket. 892 893 2008-06-30 Simon Goldschmidt 894 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from 895 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows 896 mem_free to run between mem_malloc iterations. Added illegal counter for 897 mem stats. 898 899 2008-06-27 Simon Goldschmidt 900 * stats.h/.c, some other files: patch #6483: stats module improvement: 901 Added defines to display each module's statistic individually, added stats 902 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter. 903 904 2008-06-17 Simon Goldschmidt 905 * err.h: patch #6459: Made err_t overridable to use a more efficient type 906 (define LWIP_ERR_T in cc.h) 907 908 2008-06-17 Simon Goldschmidt 909 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry 910 to loopif 911 912 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli) 913 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly 914 modified version of patch # 6370: Moved loopif code to netif.c so that 915 loopback traffic is supported on all netifs (all local IPs). 916 Added option to limit loopback packets for each netifs. 917 918 919 ++ Bugfixes: 920 2009-08-12 Kieran Mansley 921 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when 922 out of window or out of order properly 923 924 2009-08-12 Kieran Mansley 925 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1 926 927 2009-07-28 Simon Goldschmidt 928 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s 929 930 2009-07-27 Kieran Mansley 931 * api.h api_msg.h netdb.h sockets.h: add missing #include directives 932 933 2009-07-09 Kieran Mansley 934 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for 935 recv_avail and don't increment counters until message successfully 936 sent to mbox 937 938 2009-06-25 Kieran Mansley 939 * api_msg.c api.h: BUG26722: initialise netconn write variables 940 in netconn_alloc 941 942 2009-06-25 Kieran Mansley 943 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set 944 945 2009-06-25 Kieran Mansley 946 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct 947 simultaneous close behaviour, and make snd_nxt have the same meaning 948 as in the RFCs. 949 950 2009-05-12 Simon Goldschmidt 951 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on 952 arp_table / uses etharp_query" by adding etharp_gratuitous() 953 954 2009-05-12 Simon Goldschmidt 955 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options 956 to the IP header (used by igmp_ip_output_if) 957 958 2009-05-06 Simon Goldschmidt 959 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if 960 defined) for SWAP_BYTES_IN_WORD to speed up checksumming. 961 962 2009-05-05 Simon Goldschmidt 963 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select() 964 to crash 965 966 2009-05-04 Simon Goldschmidt 967 * init.c: snmp was not initialized in lwip_init() 968 969 2009-05-04 Frdric Bernon 970 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled. 971 972 2009-05-03 Simon Goldschmidt 973 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full 974 (and unsent->next == NULL) 975 976 2009-05-02 Simon Goldschmidt 977 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after 978 1.3.0 in CVS only) - fixes compilation of ppp_oe.c 979 980 2009-05-02 Simon Goldschmidt 981 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields 982 983 2009-05-01 Simon Goldschmidt 984 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets 985 986 2009-05-01 Simon Goldschmidt 987 * ppp.c: bug #24228: Memory corruption with PPP and DHCP 988 989 2009-04-29 Frdric Bernon 990 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the 991 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception 992 of broadcast packets even when this option wasn't set. Port maintainers 993 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h. 994 If you want this option also filter broadcast on recv operations, you also 995 have to set IP_SOF_BROADCAST_RECV=1 in opt.h. 996 997 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen 998 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and 999 DHCP/AUTOIP cooperation 1000 1001 2009-04-25 Simon Goldschmidt, Oleg Tyshev 1002 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd 1003 Fixed by sorting the unsent and unacked queues (segments are inserted at the 1004 right place in tcp_output and tcp_rexmit). 1005 1006 2009-04-25 Simon Goldschmidt 1007 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation 1008 when debugging": memp_sizes contained the wrong sizes (including sanity 1009 regions); memp pools for MEM_USE_POOLS were too small 1010 1011 2009-04-24 Simon Goldschmidt, Frdric Bernon 1012 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect 1013 behavior, with with ip address string not ended by a '\0', a space or a 1014 end of line) 1015 1016 2009-04-19 Simon Goldschmidt 1017 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails, 1018 pcb->err is called, not pcb->connected (with an error code). 1019 1020 2009-04-19 Simon Goldschmidt 1021 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with 1022 no-copy-tcpwrite": deallocate option data, only concat segments with same flags 1023 1024 2009-04-19 Simon Goldschmidt 1025 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated 1026 in the header pbuf, not the data pbuf) 1027 1028 2009-04-18 Simon Goldschmidt 1029 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore() 1030 1031 2009-04-15 Simon Goldschmidt 1032 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp 1033 1034 2009-04-15 Simon Goldschmidt 1035 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in 1036 1037 2009-04-15 Simon Goldschmidt 1038 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function 1039 ip_hinted_output() (for smaller code mainly) 1040 1041 2009-04-15 Simon Goldschmidt 1042 * inet.c: patch #6765: Supporting new line characters in inet_aton() 1043 1044 2009-04-15 Simon Goldschmidt 1045 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option; 1046 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu 1047 is big enough in dhcp_start 1048 1049 2009-04-15 Simon Goldschmidt 1050 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak 1051 1052 2009-04-15 Simon Goldschmidt 1053 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY 1054 1055 2009-04-15 Simon Goldschmidt 1056 * sockets.c: bug #26121: set_errno can be overridden 1057 1058 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>) 1059 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when 1060 LWIP_TCP==0 1061 1062 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>) 1063 * tcp.h: Patch#6802 Add do-while-clauses to those function like 1064 macros in tcp.h 1065 1066 2009-03-31 Kieran Mansley 1067 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window 1068 updates are calculated and sent (BUG20515) 1069 1070 * tcp_in.c: cope with SYN packets received during established states, 1071 and retransmission of initial SYN. 1072 1073 * tcp_out.c: set push bit correctly when tcp segments are merged 1074 1075 2009-03-27 Kieran Mansley 1076 * tcp_out.c set window correctly on probes (correcting change made 1077 yesterday) 1078 1079 2009-03-26 Kieran Mansley 1080 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping 1081 connections where no reset required (bug #25622) 1082 1083 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes 1084 (bug #20779) 1085 1086 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach) 1087 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be 1088 too small depending on MEM_ALIGNMENT 1089 1090 2009-02-16 Simon Goldschmidt 1091 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard; 1092 converted size argument of netconn_write to 'size_t' 1093 1094 2009-02-16 Simon Goldschmidt 1095 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host 1096 by moving accept callback function pointer to TCP_PCB_COMMON 1097 1098 2009-02-12 Simon Goldschmidt 1099 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size" 1100 option) 1101 1102 2009-02-11 Simon Goldschmidt 1103 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start) 1104 1105 2009-02-11 Simon Goldschmidt 1106 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize: 1107 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv()) 1108 1109 2009-02-10 Simon Goldschmidt 1110 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD: 1111 Accepts_pending is decrease on a corresponding listen pcb when a connection 1112 in state SYN_RCVD is close. 1113 1114 2009-01-28 Jonathan Larmour 1115 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run 1116 out of pool pbufs. 1117 1118 2008-12-19 Simon Goldschmidt 1119 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2 1120 1121 2008-12-10 Tamas Somogyi, Frdric Bernon 1122 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and 1123 port uses deleted netbuf. 1124 1125 2008-10-18 Simon Goldschmidt 1126 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length 1127 in tcp_parseopt 1128 1129 2008-10-15 Simon Goldschmidt 1130 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers 1131 by packing the struct ip_reass_helper. 1132 1133 2008-10-03 David Woodhouse, Jonathan Larmour 1134 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address. 1135 1136 2008-10-02 Jonathan Larmour 1137 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where 1138 padding is included. 1139 1140 2008-09-30 Jonathan Larmour 1141 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an 1142 assertion check that addrlen isn't NULL. 1143 1144 2008-09-30 Jonathan Larmour 1145 * tcp.c: Fix bug #24227, wrong error message in tcp_bind. 1146 1147 2008-08-26 Simon Goldschmidt 1148 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and 1149 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h 1150 1151 2008-08-14 Simon Goldschmidt 1152 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when 1153 tcp_close returns != ERR_OK) 1154 1155 2008-07-08 Frdric Bernon 1156 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters 1157 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0). 1158 1159 2008-06-24 Jonathan Larmour 1160 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused 1161 if tcp_seg_copy fails. 1162 1163 2008-06-17 Simon Goldschmidt 1164 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations) 1165 and created defines for swapping bytes and folding u32 to u16. 1166 1167 2008-05-30 Kieran Mansley 1168 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd 1169 rather than rcv_ann_wnd when deciding if packets are in-window. 1170 Contributed by <arasmussen (a] consultant.datasys.swri.edu> 1171 1172 2008-05-30 Kieran Mansley 1173 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow 1174 passing as function pointers when MEM_LIBC_MALLOC is defined. 1175 1176 2008-05-09 Jonathan Larmour 1177 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to 1178 stop it being treated as a fatal error. 1179 1180 2008-04-15 Simon Goldschmidt 1181 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP 1182 (flag now cleared) 1183 1184 2008-03-27 Simon Goldschmidt 1185 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free 1186 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1 1187 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs 1188 or heap memory from interrupt context 1189 1190 2008-03-26 Simon Goldschmidt 1191 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote 1192 host sent a zero mss as TCP option. 1193 1194 1195 (STABLE-1.3.0) 1196 1197 ++ New features: 1198 1199 2008-03-10 Jonathan Larmour 1200 * inet_chksum.c: Allow choice of one of the sample algorithms to be 1201 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM. 1202 1203 2008-01-22 Frdric Bernon 1204 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in 1205 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names. 1206 1207 2008-01-14 Frdric Bernon 1208 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable 1209 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the 1210 tcp_recv callback (see rawapi.txt). 1211 1212 2008-01-14 Frdric Bernon, Marc Chaland 1213 * ip.c: Integrate patch #6369" ip_input : checking before realloc". 1214 1215 2008-01-12 Frdric Bernon 1216 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field 1217 netconn::sem per netconn::op_completed like suggested for the task #7490 1218 "Add return value to sys_mbox_post". 1219 1220 2008-01-12 Frdric Bernon 1221 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE, 1222 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues 1223 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post". 1224 1225 2008-01-10 Frdric Bernon 1226 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490 1227 "Add return value to sys_mbox_post". tcpip_callback is always defined as 1228 "blocking" ("block" parameter = 1). 1229 1230 2008-01-10 Frdric Bernon 1231 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field 1232 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490 1233 "Add return value to sys_mbox_post". 1234 1235 2008-01-05 Frdric Bernon 1236 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h: 1237 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some 1238 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which 1239 indicate the number of pointers query by the mailbox. There is three defines 1240 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the 1241 netconn::acceptmbox. Port maintainers, you can decide to just add this new 1242 parameter in your implementation, but to ignore it to keep the previous behavior. 1243 The new sys_mbox_trypost function return a value to know if the mailbox is 1244 full or if the message is posted. Take a look to sys_arch.txt for more details. 1245 This new function is used in tcpip_input (so, can be called in an interrupt 1246 context since the function is not blocking), and in recv_udp and recv_raw. 1247 1248 2008-01-04 Frdric Bernon, Simon Goldschmidt, Jonathan Larmour 1249 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c, 1250 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the 1251 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add 1252 documentation in the rawapi.txt file. 1253 1254 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm) 1255 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer 1256 1257 2007-12-31 Frdric Bernon, Luca Ceresoli 1258 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets 1259 in autoip". The change in etharp_raw could be removed, since all calls to 1260 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be 1261 wrong in the future. 1262 1263 2007-12-30 Frdric Bernon, Tom Evans 1264 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address 1265 Filtering" reported by Tom Evans. 1266 1267 2007-12-21 Frdric Bernon, Simon Goldschmidt, Jonathan Larmour 1268 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c, 1269 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API 1270 applications have to call 'tcp_accepted(pcb)' in their accept callback to 1271 keep accepting new connections. 1272 1273 2007-12-13 Frdric Bernon 1274 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result" 1275 by err_t type. Add a new err_t code "ERR_INPROGRESS". 1276 1277 2007-12-12 Frdric Bernon 1278 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles 1279 are the one which have ram usage. 1280 1281 2007-12-05 Frdric Bernon 1282 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static 1283 set of variables (=0) or a local one (=1). In this last case, your port should 1284 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)" 1285 which have to do a copy of "h" and return a pointer ont the "per-thread" copy. 1286 1287 2007-12-03 Simon Goldschmidt 1288 * ip.c: ip_input: check if a packet is for inp first before checking all other 1289 netifs on netif_list (speeds up packet receiving in most cases) 1290 1291 2007-11-30 Simon Goldschmidt 1292 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access 1293 UDP: move a (connected) pcb selected for input to the front of the list of 1294 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten 1295 a packet. 1296 1297 2007-11-28 Simon Goldschmidt 1298 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS 1299 1300 2007-11-25 Simon Goldschmidt 1301 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy 1302 algorithm. 1303 1304 2007-11-24 Simon Goldschmidt 1305 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c 1306 to the new file netdb.c; included lwip_getaddrinfo. 1307 1308 2007-11-21 Simon Goldschmidt 1309 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss 1310 based on the MTU of the netif used to send. Enabled by default. Disable by 1311 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492. 1312 1313 2007-11-19 Frdric Bernon 1314 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name 1315 received match the name query), implement DNS_USES_STATIC_BUF (the place where 1316 copy dns payload to parse the response), return an error if there is no place 1317 for a new query, and fix some minor problems. 1318 1319 2007-11-16 Simon Goldschmidt 1320 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c 1321 removed files: core/inet.c, core/inet6.c 1322 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into 1323 inet and chksum part; changed includes in all lwIP files as appropriate 1324 1325 2007-11-16 Simon Goldschmidt 1326 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential 1327 dns resolver function for netconn api (netconn_gethostbyname) and socket api 1328 (gethostbyname/gethostbyname_r). 1329 1330 2007-11-15 Jim Pettinato, Frdric Bernon 1331 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name 1332 requests with RAW api interface. Initialization is done in lwip_init() with 1333 build time options. DNS timer is added in tcpip_thread context. DHCP can set 1334 DNS server ip addresses when options are received. You need to set LWIP_DNS=1 1335 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get 1336 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo" 1337 list with points to improve. 1338 1339 2007-11-06 Simon Goldschmidt 1340 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly 1341 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status 1342 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined. 1343 1344 2007-11-06 Simon Goldschmidt 1345 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include 1346 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal 1347 implementation from netconn api applications. 1348 1349 2007-11-03 Frdric Bernon 1350 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP & 1351 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled 1352 by default). Netconn API users can use the netconn_recv_bufsize macro to access 1353 it. This is a first release which have to be improve for TCP. Note it used the 1354 netconn::recv_avail which need to be more "thread-safe" (note there is already 1355 the problem for FIONREAD with lwip_ioctl/ioctlsocket). 1356 1357 2007-11-01 Frdric Bernon, Marc Chaland 1358 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c: 1359 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api 1360 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api 1361 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls. 1362 Note that previous "copy" parameter for "write" APIs is now called "apiflags". 1363 1364 2007-10-24 Frdric Bernon 1365 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than 1366 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove 1367 some code (like we have talk in "patch #5919 : Create compile switch to remove 1368 select code"), but it could be done later. 1369 1370 2007-10-08 Simon Goldschmidt 1371 * many files: Changed initialization: many init functions are not needed any 1372 more since we now rely on the compiler initializing global and static 1373 variables to zero! 1374 1375 2007-10-06 Simon Goldschmidt 1376 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY 1377 to enqueue the received pbufs so that multiple packets can be reassembled 1378 simultaneously and no static reassembly buffer is needed. 1379 1380 2007-10-05 Simon Goldschmidt 1381 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so 1382 all netifs (or ports) can use it. 1383 1384 2007-10-05 Frdric Bernon 1385 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the 1386 common function to reduce a little bit the footprint (for all functions using 1387 only the "netif" parameter). 1388 1389 2007-10-03 Frdric Bernon 1390 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down, 1391 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce 1392 a little bit the footprint (for all functions using only the "netif" parameter). 1393 1394 2007-09-15 Frdric Bernon 1395 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF 1396 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for 1397 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for 1398 IP_MULTICAST_TTL and IP_MULTICAST_IF. 1399 1400 2007-09-10 Frdric Bernon 1401 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles 1402 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime() 1403 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can 1404 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but 1405 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime() 1406 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro. 1407 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside 1408 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only 1409 when it's queried (any direct call to "sysuptime" is changed by a call to 1410 snmp_get_sysuptime). 1411 1412 2007-09-09 Frdric Bernon, Bill Florac 1413 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP, 1414 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags 1415 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove(). 1416 igmp_report_groups() is now called inside netif_set_link_up() (need to have 1417 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait 1418 the next query message to receive the matching multicast streams). 1419 1420 2007-09-08 Frdric Bernon 1421 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains 1422 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change). 1423 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...). 1424 Enable to access to these fields with LWIP_TCP=0. 1425 1426 2007-09-05 Frdric Bernon 1427 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h, 1428 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option 1429 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default). 1430 Be careful, disabling ICMP make your product non-compliant to RFC1122, but 1431 help to reduce footprint, and to reduce "visibility" on the Internet. 1432 1433 2007-09-05 Frdric Bernon, Bill Florac 1434 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list 1435 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new 1436 parameters have to be provided: a task name, and a task stack size. For this 1437 one, since it's platform dependant, you could define the best one for you in 1438 your lwipopts.h. For port maintainers, you can just add these new parameters 1439 in your sys_arch.c file, and but it's not mandatory, use them in your OS 1440 specific functions. 1441 1442 2007-09-05 Frdric Bernon 1443 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings 1444 inside init.c for task #7142 "Sanity check user-configurable values". 1445 1446 2007-09-04 Frdric Bernon, Bill Florac 1447 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by 1448 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the 1449 value). It will avoid potential fragmentation problems, use a counter to know 1450 how many times a group is used on an netif, and free it when all applications 1451 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity 1452 check if LWIP_IGMP!=0). 1453 1454 2007-09-03 Frdric Bernon 1455 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement". 1456 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in 1457 the netif's "init" function). Use the "imr_interface" field (for socket layer) 1458 and/or the "interface" field (for netconn layer), for join/leave operations. 1459 The igmp_join/leavegroup first parameter change from a netif to an ipaddr. 1460 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany). 1461 1462 2007-08-30 Frdric Bernon 1463 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions 1464 from api/api_lib". Now netbuf API is independant of netconn, and can be used 1465 with other API (application based on raw API, or future "socket2" API). Ports 1466 maintainers just have to add src/api/netbuf.c in their makefile/projects. 1467 1468 2007-08-30 Frdric Bernon, Jonathan Larmour 1469 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check 1470 user-configurable values". 1471 1472 2007-08-29 Frdric Bernon 1473 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start. 1474 igmp_start is call inside netif_add. Now, igmp initialization is in the same 1475 spirit than the others modules. Modify some IGMP debug traces. 1476 1477 2007-08-29 Frdric Bernon 1478 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function" 1479 Add lwip_init function to regroup all modules initializations, and to provide 1480 a place to add code for task #7142 "Sanity check user-configurable values". 1481 Ports maintainers should remove direct initializations calls from their code, 1482 and add init.c in their makefiles. Note that lwip_init() function is called 1483 inside tcpip_init, but can also be used by raw api users since all calls are 1484 disabled when matching options are disabled. Also note that their is new options 1485 in opt.h, you should configure in your lwipopts.h (they are enabled per default). 1486 1487 2007-08-26 Marc Boucher 1488 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL 1489 since they can under certain circumstances be called with an invalid conn 1490 pointer after the connection has been closed (and conn has been freed). 1491 1492 2007-08-25 Frdric Bernon (Artem Migaev's Patch) 1493 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up". 1494 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set. 1495 1496 2007-08-22 Frdric Bernon 1497 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK 1498 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release. 1499 1500 2007-08-22 Frdric Bernon 1501 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT & 1502 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the 1503 name is tcpip_input (we keep the name of 1.2.0 function). 1504 1505 2007-08-17 Jared Grubb 1506 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool 1507 settings into new memp_std.h and optional user file lwippools.h. This adds 1508 more dynamic mempools, and allows the user to create an arbitrary number of 1509 mempools for mem_malloc. 1510 1511 2007-08-16 Marc Boucher 1512 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function; 1513 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely 1514 close the connection. 1515 1516 2007-08-16 Marc Boucher 1517 * sockets.c: lwip_accept(): check netconn_peer() error return. 1518 1519 2007-08-16 Marc Boucher 1520 * mem.c, mem.h: Added mem_calloc(). 1521 1522 2007-08-16 Marc Boucher 1523 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT) 1524 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG 1525 and starving other message types. 1526 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API 1527 1528 2007-08-16 Marc Boucher 1529 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf 1530 type and flgs (later renamed to flags). 1531 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*. 1532 Improved lwip_recvfrom(). TCP push now propagated. 1533 1534 2007-08-16 Marc Boucher 1535 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global 1536 provided by etharp. 1537 1538 2007-08-16 Marc Boucher 1539 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h, 1540 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c: 1541 Added PPPoE support and various PPP improvements. 1542 1543 2007-07-25 Simon Goldschmidt 1544 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial, 1545 making netbuf_copy_partial use this function. 1546 1547 2007-07-25 Simon Goldschmidt 1548 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with 1549 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and 1550 other stacks. 1551 1552 2007-07-13 Jared Grubb (integrated by Frdric Bernon) 1553 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add 1554 a link callback in the netif struct, and functions to handle it. Be carefull 1555 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c) 1556 if you want to be sure to be compatible with future changes... 1557 1558 2007-06-30 Frdric Bernon 1559 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions. 1560 1561 2007-06-21 Simon Goldschmidt 1562 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both 1563 LWIP_AUTOIP =0 and =1 to remove redundant code. 1564 1565 2007-06-21 Simon Goldschmidt 1566 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option 1567 MEM_USE_POOLS to use 4 pools with different sized elements instead of a 1568 heap. This both prevents memory fragmentation and gives a higher speed 1569 at the cost of more memory consumption. Turned off by default. 1570 1571 2007-06-21 Simon Goldschmidt 1572 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of 1573 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into 1574 int to be able to send a bigger buffer than 64K with one time (mainly 1575 used from lwip_send). 1576 1577 2007-06-21 Simon Goldschmidt 1578 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write 1579 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too. 1580 1581 2007-06-21 Simon Goldschmidt 1582 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in 1583 netconn_write from api_lib.c to api_msg.c to also prevent multiple context- 1584 changes on low memory or empty send-buffer. 1585 1586 2007-06-18 Simon Goldschmidt 1587 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length 1588 of 6 to avoid loading netif->hwaddr_len every time (since this file is only 1589 used for ethernet and struct eth_addr already had a defined length of 6). 1590 1591 2007-06-17 Simon Goldschmidt 1592 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets 1593 to disable UDP checksum generation on transmit. 1594 1595 2007-06-13 Frdric Bernon, Simon Goldschmidt 1596 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid 1597 pointers or parameters, and let the possibility to redefined it in cc.h. Use 1598 this macro to check "conn" parameter in api_msg.c functions. 1599 1600 2007-06-11 Simon Goldschmidt 1601 * sockets.c, sockets.h: Added UDP lite support for sockets 1602 1603 2007-06-10 Simon Goldschmidt 1604 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled 1605 by default) to switch off UDP-Lite support if not needed (reduces udp.c code 1606 size) 1607 1608 2007-06-09 Dominik Spies (integrated by Frdric Bernon) 1609 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h: 1610 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and 1611 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt 1612 (see TODO mark in the source code). 1613 1614 2007-06-09 Simon Goldschmidt 1615 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for 1616 etharp_output() to match netif->output so etharp_output() can be used 1617 directly as netif->output to save one function call. 1618 1619 2007-06-08 Simon Goldschmidt 1620 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define 1621 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables, 1622 added initialization of those to ethernetif, slipif and loopif. 1623 1624 2007-05-18 Simon Goldschmidt 1625 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF 1626 (defaulting to off for now) that can be set to 0 to send fragmented 1627 packets by passing PBUF_REFs down the stack. 1628 1629 2007-05-23 Frdric Bernon 1630 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP 1631 connections, such present in patch #5959. 1632 1633 2007-05-23 Frdric Bernon 1634 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx 1635 code in only one part... 1636 1637 2007-05-18 Simon Goldschmidt 1638 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp 1639 elements to overflow. This is achieved by adding some bytes before and after 1640 each pool element (increasing their size, of course), filling them with a 1641 prominent value and checking them on freeing the element. 1642 Set it to 2 to also check every element in every pool each time memp_malloc() 1643 or memp_free() is called (slower but more helpful). 1644 1645 2007-05-10 Simon Goldschmidt 1646 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for 1647 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce 1648 code size. 1649 1650 2007-05-11 Frdric Bernon 1651 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c: 1652 Include a function pointer instead of a table index in the message to reduce 1653 footprint. Disable some part of lwip_send and lwip_sendto if some options are 1654 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW). 1655 1656 2007-05-10 Simon Goldschmidt 1657 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus 1658 \ extern "C" {' in all header files. Now you can write your application using 1659 the lwIP stack in C++ and simply #include the core files. Note I have left 1660 out the netif/ppp/*h header files for now, since I don't know which files are 1661 included by applications and which are for internal use only. 1662 1663 2007-05-09 Simon Goldschmidt 1664 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library 1665 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for 1666 situations where some compilers might inline the copy and save a function 1667 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY(). 1668 1669 2007-05-08 Simon Goldschmidt 1670 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc()) 1671 to be overriden in case the C-library malloc implementation is not protected 1672 against concurrent access. 1673 1674 2007-05-04 Simon Goldschmidt (Atte Kojo) 1675 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending 1676 multiple packets to the same host. 1677 1678 2007-05-04 Frdric Bernon, Jonathan Larmour 1679 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible 1680 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with 1681 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between 1682 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function. 1683 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct, 1684 these fields are now renamed "addr" & "port". 1685 1686 2007-04-11 Jonathan Larmour 1687 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new 1688 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return 1689 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro 1690 by the port in sys_arch.h if desired. 1691 1692 2007-04-06 Frdric Bernon, Simon Goldschmidt 1693 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API 1694 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp 1695 clients, using new functions from netifapi.h. Disable as default (no port change to do). 1696 1697 2007-04-05 Frdric Bernon 1698 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant. 1699 1700 2007-04-04 Simon Goldschmidt 1701 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x) 1702 use this for and architecture-independent form to tell the compiler you intentionally 1703 are not using this variable. Can be overriden in cc.h. 1704 1705 2007-03-28 Frdric Bernon 1706 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to 1707 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded 1708 string, point on one of your's ethernetif field, or alloc a string you will free yourself). 1709 It will be used by DHCP to register a client hostname, but can also be use when you call 1710 snmp_set_sysname. 1711 1712 2007-03-28 Frdric Bernon 1713 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to 1714 initialize a network interface's flag with. It tell this interface is an ethernet 1715 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility 1716 Support for IPv4" section 4.6) when interface is "up" with netif_set_up(). 1717 1718 2007-03-26 Frdric Bernon, Jonathan Larmour 1719 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build 1720 time if you only use PPP or SLIP. The default is enable. Note we don't have to call 1721 etharp_init in your port's initilization sequence if you use tcpip.c, because this call 1722 is done in tcpip_init function. 1723 1724 2007-03-22 Frdric Bernon 1725 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the 1726 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in 1727 your lwipopts.h. More, unused counters are not defined in the stats structs, and not 1728 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined 1729 but never used. Fix msg_in.c with the correct #if test for a stat display. 1730 1731 2007-03-21 Kieran Mansley 1732 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland (a] hmgsl.com). 1733 Provides callback on netif up/down state change. 1734 1735 2007-03-11 Frdric Bernon, Mace Gael, Steve Reynolds 1736 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c, 1737 ip.c, netif.h, tcpip.c, opt.h: 1738 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one 1739 filter per all network interfaces. Declare a new function in netif to enable to 1740 control the MAC filter (to reduce lwIP traffic processing). 1741 1742 2007-03-11 Frdric Bernon 1743 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can 1744 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this 1745 unless you know what you're doing (default are RFC1122 compliant). Note 1746 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds. 1747 1748 2007-03-08 Frdric Bernon 1749 * tcp.h: Keepalive values can be configured at compile time, but don't change 1750 this unless you know what you're doing (default are RFC1122 compliant). 1751 1752 2007-03-08 Frdric Bernon 1753 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h: 1754 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO 1755 on UDP sockets/netconn. 1756 1757 2007-03-08 Simon Goldschmidt 1758 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time. 1759 1760 2007-03-06 Frdric Bernon 1761 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h: 1762 Implement SO_RCVTIMEO on UDP sockets/netconn. 1763 1764 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt) 1765 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated 1766 on the stack and remove the API msg type from memp 1767 1768 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) 1769 * sockets.h, sockets.c: Move socket initialization to new 1770 lwip_socket_init() function. 1771 NOTE: this changes the API with ports. Ports will have to be 1772 updated to call lwip_socket_init() now. 1773 1774 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) 1775 * api_lib.c: Use memcpy in netbuf_copy_partial. 1776 1777 1778 ++ Bug fixes: 1779 1780 2008-03-17 Frdric Bernon, Ed Kerekes 1781 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have 1782 some problems to fill the IP header on some targets, use now the 1783 ip.h macros to do it). 1784 1785 2008-03-13 Frdric Bernon 1786 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using 1787 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a 1788 TCP connection caused a crash. Note that using (lwip_)recvfrom 1789 like this is a bit slow and that using (lwip)getpeername is the 1790 good lwip way to do it (so, using recv is faster on tcp sockets). 1791 1792 2008-03-12 Frdric Bernon, Jonathan Larmour 1793 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's 1794 recv_raw() does not consume data", and the ping sample (with 1795 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom 1796 returned the IP payload, without the IP header). 1797 1798 2008-03-04 Jonathan Larmour 1799 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors 1800 and/or warnings on some systems where mem_size_t and size_t differ. 1801 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc. 1802 1803 2008-03-04 Kieran Mansley (contributions by others) 1804 * Numerous small compiler error/warning fixes from contributions to 1805 mailing list after 1.3.0 release candidate made. 1806 1807 2008-01-25 Cui hengbin (integrated by Frdric Bernon) 1808 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures. 1809 1810 2008-01-15 Kieran Mansley 1811 * tcp_out.c: BUG20511. Modify persist timer to start when we are 1812 prevented from sending by a small send window, not just a zero 1813 send window. 1814 1815 2008-01-09 Jonathan Larmour 1816 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid 1817 conflict with Linux system headers. 1818 1819 2008-01-06 Jonathan Larmour 1820 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP 1821 address entirely on receiving a DHCPNAK, and restarting discovery. 1822 1823 2007-12-21 Simon Goldschmidt 1824 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail 1825 is not protected" by using new macros for interlocked access to modify/test 1826 netconn->recv_avail. 1827 1828 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev) 1829 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state) 1830 1831 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm) 1832 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling 1833 of silly window avoidance and prevent lwIP from shrinking the window) 1834 1835 2007-12-04 Simon Goldschmidt 1836 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last 1837 data packet was lost): add assert that all segment lists are empty in 1838 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED 1839 state from LAST_ACK in tcp_process 1840 1841 2007-12-02 Simon Goldschmidt 1842 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET 1843 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now 1844 has to be set to 0 in lwipopts.h 1845 1846 2007-12-02 Simon Goldschmidt 1847 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always 1848 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen 1849 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox. 1850 This is a fix for thread-safety and allocates all items needed for a netconn 1851 when the netconn is created. 1852 1853 2007-11-30 Simon Goldschmidt 1854 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple 1855 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed 1856 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same 1857 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address) 1858 1859 2007-11-27 Simon Goldschmidt 1860 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by 1861 letting ip_route only use netifs that are up. 1862 1863 2007-11-27 Simon Goldschmidt 1864 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF 1865 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and 1866 sockets block most operations once they have seen a fatal error. 1867 1868 2007-11-27 Simon Goldschmidt 1869 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the 1870 netif to send as an argument (to be able to send on netifs that are down). 1871 1872 2007-11-26 Simon Goldschmidt 1873 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs 1874 arrive out-of-order 1875 1876 2007-11-21 Simon Goldschmidt 1877 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early 1878 Fixed the nagle algorithm; nagle now also works for all raw API applications 1879 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY' 1880 1881 2007-11-12 Frdric Bernon 1882 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most 1883 of the netconn_peer and netconn_addr processing is done inside tcpip_thread 1884 context in do_getaddr. 1885 1886 2007-11-10 Simon Goldschmidt 1887 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can 1888 happen any time). Now the packet simply isn't enqueued when out of memory. 1889 1890 2007-11-01 Simon Goldschmidt 1891 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or 1892 TCP_MSS if that is smaller) as long as no MSS option is received from the 1893 remote host. 1894 1895 2007-11-01 Simon Goldschmidt 1896 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN) 1897 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively 1898 sending our configured TCP_MSS instead of the one received). 1899 1900 2007-11-01 Simon Goldschmidt 1901 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was 1902 calculated based on the configured TCP_MSS, not on the MSS option received 1903 with SYN+ACK. 1904 1905 2007-10-09 Simon Goldschmidt 1906 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too 1907 short and also was generated wrong if checksum coverage != tot_len; 1908 receive: checksum was calculated wrong if checksum coverage != tot_len 1909 1910 2007-10-08 Simon Goldschmidt 1911 * mem.c: lfree was not updated in mem_realloc! 1912 1913 2007-10-07 Frdric Bernon 1914 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential 1915 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT: 1916 this change cause an API breakage for netconn_addr, since a parameter 1917 type change. Any compiler should cause an error without any changes in 1918 yours netconn_peer calls (so, it can't be a "silent change"). It also 1919 reduce a little bit the footprint for socket layer (lwip_getpeername & 1920 lwip_getsockname use now a common lwip_getaddrname function since 1921 netconn_peer & netconn_addr have the same parameters). 1922 1923 2007-09-20 Simon Goldschmidt 1924 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state) 1925 by checking tcp_tw_pcbs also 1926 1927 2007-09-19 Simon Goldschmidt 1928 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies) 1929 1930 2007-09-15 Mike Kleshov 1931 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used) 1932 1933 2007-09-06 Frdric Bernon 1934 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove 1935 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which 1936 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h" 1937 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h. 1938 1939 2007-08-30 Frdric Bernon 1940 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces, 1941 and fix some coding style. 1942 1943 2007-08-28 Frdric Bernon 1944 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any 1945 kind of packets. These packets are considered like Ethernet packets (payload 1946 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets 1947 are considered like IP packets (payload pointing to iphdr). 1948 1949 2007-08-27 Frdric Bernon 1950 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error 1951 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state 1952 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT). 1953 1954 2007-08-24 Kieran Mansley 1955 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy 1956 compiler (Paradigm C++) 1957 1958 2007-08-09 Frdric Bernon, Bill Florac 1959 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement. 1960 Introduce IGMP_STATS to centralize statistics management. 1961 1962 2007-08-09 Frdric Bernon, Bill Florac 1963 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast 1964 packet on a udp pcb binded on an netif's IP address, and not on "any". 1965 1966 2007-08-09 Frdric Bernon, Bill Florac 1967 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement. 1968 This is mainly on using lookup/lookfor, and some coding styles... 1969 1970 2007-07-26 Frdric Bernon (and "thedoctor") 1971 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages. 1972 1973 2007-07-25 Simon Goldschmidt 1974 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if 1975 tcp_output fails in tcp_close, the code in do_close_internal gets simpler 1976 (tcp_output is called again later from tcp timers). 1977 1978 2007-07-25 Simon Goldschmidt 1979 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old 1980 copy_from_pbuf, which illegally modified the given pbuf. 1981 1982 2007-07-25 Simon Goldschmidt 1983 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs: 1984 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p). 1985 1986 2007-07-24 Simon Goldschmidt 1987 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the 1988 correct state (must be CLOSED). 1989 1990 2007-07-13 Thomas Taranowski (commited by Jared Grubb) 1991 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed 1992 allocation. It now returns NULL. 1993 1994 2007-07-13 Frdric Bernon 1995 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in 1996 all error cases. 1997 1998 2007-07-13 Frdric Bernon 1999 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed, 2000 because current code doesn't follow rawapi.txt documentation. 2001 2002 2007-07-13 Kieran Mansley 2003 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in 2004 out of sequence processing of received packets 2005 2006 2007-07-03 Simon Goldschmidt 2007 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an 2008 assumption is made that this pbuf is in one piece (i.e. not chained). These 2009 assumptions clash with the possibility of converting to fully pool-based 2010 pbuf implementations, where PBUF_RAM pbufs might be chained. 2011 2012 2007-07-03 Simon Goldschmidt 2013 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems 2014 when closing tcp netconns: removed conn->sem, less context switches when 2015 closing, both netconn_close and netconn_delete should safely close tcp 2016 connections. 2017 2018 2007-07-02 Simon Goldschmidt 2019 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c, 2020 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off) 2021 to cache ARP table indices with each pcb instead of single-entry cache for 2022 the complete stack. 2023 2024 2007-07-02 Simon Goldschmidt 2025 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent 2026 warnings when assigning to smaller types. 2027 2028 2007-06-28 Simon Goldschmidt 2029 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing. 2030 2031 2007-06-28 Simon Goldschmidt 2032 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if 2033 a segment contained chained pbufs) 2034 2035 2007-06-28 Frdric Bernon 2036 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute 2037 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always 2038 possible to define this macro in your own lwipopts.h to always use C library's 2039 rand(). Note that autoip_create_rand_addr doesn't use this macro. 2040 2041 2007-06-28 Frdric Bernon 2042 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option 2043 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications 2044 in api_lib/api_msg (use pointers and not type with table, etc...) 2045 2046 2007-06-26 Simon Goldschmidt 2047 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines. 2048 2049 2007-06-25 Simon Goldschmidt 2050 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload 2051 for udp packets with no matching pcb. 2052 2053 2007-06-25 Simon Goldschmidt 2054 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match 2055 could get udp input packets if the remote side matched. 2056 2057 2007-06-13 Simon Goldschmidt 2058 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get 2059 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0. 2060 2061 2007-06-13 Simon Goldschmidt 2062 * api_msg.c: pcb_new sets conn->err if protocol is not implemented 2063 -> netconn_new_..() does not allocate a new connection for unsupported 2064 protocols. 2065 2066 2007-06-13 Frdric Bernon, Simon Goldschmidt 2067 * api_lib.c: change return expression in netconn_addr and netconn_peer, because 2068 conn->err was reset to ERR_OK without any reasons (and error was lost)... 2069 2070 2007-06-13 Frdric Bernon, Matthias Weisser 2071 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename 2072 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid 2073 some macro names collision with some OS macros. 2074 2075 2007-06-11 Simon Goldschmidt 2076 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0, 2077 create checksum over the complete packet. On RX, if it's < 8 (and not 0), 2078 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both 2079 UDP & UDP Lite. 2080 2081 2007-06-11 Srinivas Gollakota & Oleg Tyshev 2082 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags" 2083 where TCP flags wasn't initialized in tcp_keepalive. 2084 2085 2007-06-03 Simon Goldschmidt 2086 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function 2087 registered, p->payload was modified without modifying p->len if sending 2088 icmp_dest_unreach() (had no negative effect but was definitively wrong). 2089 2090 2007-06-03 Simon Goldschmidt 2091 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp 2092 re-used the input pbuf even if that didn't have enough space to include the 2093 link headers. Now the space is tested and a new pbuf is allocated for the 2094 echo response packet if the echo request pbuf isn't big enough. 2095 2096 2007-06-01 Simon Goldschmidt 2097 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread. 2098 2099 2007-05-23 Frdric Bernon 2100 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only 2101 allocated by do_listen if success) and netconn_accept errors handling. In 2102 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)" 2103 by ASSERT, except for netconn_delete. 2104 2105 2007-05-23 Frdric Bernon 2106 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return 2107 an error code if it's impossible to fetch a pbuf on a TCP connection (and not 2108 directly close the recvmbox). 2109 2110 2007-05-22 Simon Goldschmidt 2111 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of 2112 bound but unconnected (and non-listening) tcp_pcbs. 2113 2114 2007-05-22 Frdric Bernon 2115 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only 2116 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of 2117 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features 2118 like "sys_timeout" in their application threads. 2119 2120 2007-05-22 Frdric Bernon 2121 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see 2122 which parameters are used by which do_xxx function, and to avoid "misusing" 2123 parameters (patch #5938). 2124 2125 2007-05-22 Simon Goldschmidt 2126 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938: 2127 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto 2128 is only 8 bits wide. This affects the api, as there, the protocol was 2129 u16_t, too. 2130 2131 2007-05-18 Simon Goldschmidt 2132 * memp.c: addition to patch #5913: smaller pointer was returned but 2133 memp_memory was the same size -> did not save memory. 2134 2135 2007-05-16 Simon Goldschmidt 2136 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns 2137 != ERR_OK. 2138 2139 2007-05-16 Simon Goldschmidt 2140 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same 2141 as the one of the netif used for sending to prevent sending from old 2142 addresses after a netif address gets changed (partly fixes bug #3168). 2143 2144 2007-05-16 Frdric Bernon 2145 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work 2146 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in 2147 tcpip_init) because we have to be sure that network interfaces are already 2148 added (mac filter is updated only in igmp_init for the moment). 2149 2150 2007-05-16 Simon Goldschmidt 2151 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls 2152 into sys_arch_sem_wait calls to prevent timers from running while waiting 2153 for the heap. This fixes bug #19167. 2154 2155 2007-05-13 Simon Goldschmidt 2156 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines 2157 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from 2158 tcp.h to sockets.h. 2159 2160 2007-05-07 Simon Goldschmidt 2161 * mem.c: Another attempt to fix bug #17922. 2162 2163 2007-05-04 Simon Goldschmidt 2164 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy() 2165 implementation so that it can be reused (don't allocate the target 2166 pbuf inside pbuf_copy()). 2167 2168 2007-05-04 Simon Goldschmidt 2169 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem 2170 to save a little RAM (next pointer of memp is not used while not in pool). 2171 2172 2007-05-03 "maq" 2173 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv. 2174 (patch #3574). 2175 2176 2007-04-23 Simon Goldschmidt 2177 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results 2178 in NULL reference for incoming TCP packets". Loopif has to be configured 2179 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input() 2180 (multithreading environments, e.g. netif->input() = tcpip_input()) or 2181 putting packets on a list that is fed to the stack by calling loopif_poll() 2182 (single-thread / NO_SYS / polling environment where e.g. 2183 netif->input() = ip_input). 2184 2185 2007-04-17 Jonathan Larmour 2186 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold 2187 the difference between two u16_t's. 2188 * sockets.h: FD_SETSIZE needs to match number of sockets, which is 2189 MEMP_NUM_NETCONN in sockets.c right now. 2190 2191 2007-04-12 Jonathan Larmour 2192 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580). 2193 2194 2007-04-12 Kieran Mansley 2195 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission 2196 timer is reset to fix bug#19434, with help from Oleg Tyshev. 2197 2198 2007-04-11 Simon Goldschmidt 2199 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than 2200 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up 2201 pbuf.c: removed functions no needed any more (by etharp). 2202 2203 2007-04-11 Kieran Mansley 2204 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix 2205 "Constant is long" warnings with 16bit compilers. Contributed by 2206 avatar (a] mmlab.cse.yzu.edu.tw 2207 2208 2007-04-05 Frdric Bernon, Jonathan Larmour 2209 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on 2210 the mailbox is active". Now, the post is only done during a connect, and do_send, 2211 do_write and do_join_leave_group don't do anything if a previous error was signaled. 2212 2213 2007-04-03 Frdric Bernon 2214 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output 2215 packets. See patch #5834. 2216 2217 2007-03-30 Frdric Bernon 2218 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add 2219 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style. 2220 2221 2007-03-30 Frdric Bernon 2222 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with 2223 others environment defines (these were too "generic"). 2224 2225 2007-03-28 Frdric Bernon 2226 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call 2227 result and can cause a crash. lwip_send now check netbuf_ref result. 2228 2229 2007-03-28 Simon Goldschmidt 2230 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple 2231 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is 2232 defined. This is the way it should have been already (looking at 2233 doc/sys_arch.txt) 2234 2235 2007-03-28 Kieran Mansley 2236 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS + 2237 IP and TCP headers *and* physical link headers 2238 2239 2007-03-26 Frdric Bernon (based on patch from Dmitry Potapov) 2240 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause 2241 to send some garbage. It is not a definitive solution, but the patch does solve 2242 the problem for most cases. 2243 2244 2007-03-22 Frdric Bernon 2245 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used). 2246 2247 2007-03-22 Frdric Bernon 2248 * api_lib.c: somes resources couldn't be freed if there was errors during 2249 netconn_new_with_proto_and_callback. 2250 2251 2007-03-22 Frdric Bernon 2252 * ethernetif.c: update netif->input calls to check return value. In older ports, 2253 it's a good idea to upgrade them, even if before, there could be another problem 2254 (access to an uninitialized mailbox). 2255 2256 2007-03-21 Simon Goldschmidt 2257 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed 2258 by casting to unsigned). 2259 2260 2007-03-21 Frdric Bernon 2261 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from 2262 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a 2263 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call. 2264 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a 2265 faster and more reliable communication between api_lib and tcpip. 2266 2267 2007-03-21 Frdric Bernon 2268 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0. 2269 2270 2007-03-21 Frdric Bernon 2271 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments 2272 2273 2007-03-21 Kieran Mansley 2274 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS + 2275 IP and TCP headers 2276 2277 2007-03-21 Kieran Mansley 2278 * Fix all uses of pbuf_header to check the return value. In some 2279 cases just assert if it fails as I'm not sure how to fix them, but 2280 this is no worse than before when they would carry on regardless 2281 of the failure. 2282 2283 2007-03-21 Kieran Mansley 2284 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and 2285 comment out missing header include in icmp.c 2286 2287 2007-03-20 Frdric Bernon 2288 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't 2289 synchronized with memp.h. 2290 2291 2007-03-20 Frdric Bernon 2292 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input, 2293 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with 2294 network interfaces. Also fix a compiler warning. 2295 2296 2007-03-20 Kieran Mansley 2297 * udp.c: Only try and use pbuf_header() to make space for headers if 2298 not a ROM or REF pbuf. 2299 2300 2007-03-19 Frdric Bernon 2301 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg() 2302 and api_msg_post(). 2303 2304 2007-03-19 Frdric Bernon 2305 * Remove unimplemented "memp_realloc" function from memp.h. 2306 2307 2007-03-11 Simon Goldschmidt 2308 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused 2309 memory corruption. 2310 2311 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov) 2312 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251 2313 (missing `const' qualifier in socket functions), to get more compatible to 2314 standard POSIX sockets. 2315 2316 2007-03-11 Frdric Bernon (based on patch from Dmitry Potapov) 2317 * sockets.c: Add asserts inside bind, connect and sendto to check input 2318 parameters. Remove excessive set_errno() calls after get_socket(), because 2319 errno is set inside of get_socket(). Move last sock_set_errno() inside 2320 lwip_close. 2321 2322 2007-03-09 Simon Goldschmidt 2323 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory 2324 was allocated too small. 2325 2326 2007-03-06 Simon Goldschmidt 2327 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect 2328 the stack from concurrent access. 2329 2330 2007-03-06 Frdric Bernon, Dmitry Potapov 2331 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy 2332 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input(). 2333 2334 2007-03-06 Simon Goldschmidt 2335 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files 2336 if IP_FRAG == 0 and IP_REASSEMBLY == 0 2337 2338 2007-03-06 Frdric Bernon, Simon Goldschmidt 2339 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration 2340 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput. 2341 Allow to do ARP processing for incoming packets inside tcpip_thread 2342 (protecting ARP layer against concurrent access). You can also disable 2343 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0. 2344 Older ports have to use tcpip_ethinput. 2345 2346 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov) 2347 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers 2348 from pointer target type" 2349 2350 2007-03-05 Frdric Bernon 2351 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES, 2352 ETHARP_TRUST_IP_MAC, review SO_REUSE) 2353 2354 2007-03-04 Frdric Bernon 2355 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never 2356 referenced. 2357 2358 2007-03-04 Frdric Bernon 2359 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from 2360 Dmitry Potapov). 2361 The api_msg struct stay on the stack (not moved to netconn struct). 2362 2363 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov) 2364 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if 2365 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available) 2366 Also fixed cast warning in pbuf_alloc() 2367 2368 2007-03-04 Simon Goldschmidt 2369 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt 2370 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request 2371 2372 2007-03-03 Frdric Bernon 2373 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;" 2374 It is static, and never used in udp.c except udp_init(). 2375 2376 2007-03-02 Simon Goldschmidt 2377 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from 2378 tcpip_thread() to tcpip_init(). This way, raw API connections can be 2379 initialized before tcpip_thread is running (e.g. before OS is started) 2380 2381 2007-03-02 Frdric Bernon 2382 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call 2383 interval. 2384 2385 2007-02-28 Kieran Mansley 2386 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved 2387 outside the region of the pbuf by pbuf_header() 2388 2389 2007-02-28 Kieran Mansley 2390 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero 2391 when supplied timeout is also non-zero 2392 2393 (STABLE-1.2.0) 2394 2395 2006-12-05 Leon Woestenberg 2396 * CHANGELOG: Mention STABLE-1.2.0 release. 2397 2398 ++ New features: 2399 2400 2006-12-01 Christiaan Simons 2401 * mem.h, opt.h: Added MEM_LIBC_MALLOC option. 2402 Note this is a workaround. Currently I have no other options left. 2403 2404 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour) 2405 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define 2406 to include/lwip/opt.h. 2407 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL. 2408 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h. 2409 * opt.h: Add above new options. 2410 2411 2006-08-18 Christiaan Simons 2412 * tcp_{in,out}.c: added SNMP counters. 2413 * ipv4/ip.c: added SNMP counters. 2414 * ipv4/ip_frag.c: added SNMP counters. 2415 2416 2006-08-08 Christiaan Simons 2417 * etharp.{c,h}: added etharp_find_addr() to read 2418 (stable) ethernet/IP address pair from ARP table 2419 2420 2006-07-14 Christiaan Simons 2421 * mib_structs.c: added 2422 * include/lwip/snmp_structs.h: added 2423 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct 2424 2425 2006-07-06 Christiaan Simons 2426 * snmp/asn1_{enc,dec}.c added 2427 * snmp/mib2.c added 2428 * snmp/msg_{in,out}.c added 2429 * include/lwip/snmp_asn1.h added 2430 * include/lwip/snmp_msg.h added 2431 * doc/snmp_agent.txt added 2432 2433 2006-03-29 Christiaan Simons 2434 * inet.c, inet.h: Added platform byteswap support. 2435 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and 2436 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros. 2437 2438 ++ Bug fixes: 2439 2440 2006-11-30 Christiaan Simons 2441 * dhcp.c: Fixed false triggers of request_timeout. 2442 2443 2006-11-28 Christiaan Simons 2444 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags. 2445 2446 2006-10-11 Christiaan Simons 2447 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h: 2448 Partially accepted patch #5449 for ANSI C compatibility / build fixes. 2449 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol 2450 identifier from 170 to 136 (bug #17574). 2451 2452 2006-10-10 Christiaan Simons 2453 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice. 2454 2455 2006-08-17 Christiaan Simons 2456 * udp.c: Fixed bug #17200, added check for broadcast 2457 destinations for PCBs bound to a unicast address. 2458 2459 2006-08-07 Christiaan Simons 2460 * api_msg.c: Flushing TCP output in do_close() (bug #15926). 2461 2462 2006-06-27 Christiaan Simons 2463 * api_msg.c: Applied patch for cold case (bug #11135). 2464 In accept_function() ensure newconn->callback is always initialized. 2465 2466 2006-06-15 Christiaan Simons 2467 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748), 2468 facilitate printing of mem_size_t and u16_t statistics. 2469 2470 2006-06-14 Christiaan Simons 2471 * api_msg.c: Applied patch #5146 to handle allocation failures 2472 in accept() by Kevin Lawson. 2473 2474 2006-05-26 Christiaan Simons 2475 * api_lib.c: Removed conn->sem creation and destruction 2476 from netconn_write() and added sys_sem_new to netconn_new_*. 2477 2478 (STABLE-1_1_1) 2479 2480 2006-03-03 Christiaan Simons 2481 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap 2482 access and added pbuf_alloc() return value checks. 2483 2484 2006-01-01 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2485 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is 2486 now handled by the checksum routine properly. 2487 2488 2006-02-27 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2489 * pbuf.c: Fix alignment; pbuf_init() would not work unless 2490 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.) 2491 2492 2005-12-20 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2493 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch 2494 submitted by Mitrani Hiroshi. 2495 2496 2005-12-15 Christiaan Simons 2497 * inet.c: Disabled the added summing routine to preserve code space. 2498 2499 2005-12-14 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2500 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson. 2501 Added Curt McDowell's optimized checksumming routine for future 2502 inclusion. Need to create test case for unaliged, aligned, odd, 2503 even length combination of cases on various endianess machines. 2504 2505 2005-12-09 Christiaan Simons 2506 * inet.c: Rewrote standard checksum routine in proper portable C. 2507 2508 2005-11-25 Christiaan Simons 2509 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only. 2510 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t, 2511 u32_t, s32_t typedefs. This solves most debug word-length assumes. 2512 2513 2005-07-17 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2514 * inet.c: Fixed unaligned 16-bit access in the standard checksum 2515 routine by Peter Jolasson. 2516 * slipif.c: Fixed implementation assumption of single-pbuf datagrams. 2517 2518 2005-02-04 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2519 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch. 2520 * tcp_{out|in}.c: Applied patch fixing unaligned access. 2521 2522 2005-01-04 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2523 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement. 2524 2525 2005-01-03 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2526 * udp.c: UDP pcb->recv() was called even when it was NULL. 2527 2528 (STABLE-1_1_0) 2529 2530 2004-12-28 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2531 * etharp.*: Disabled multiple packets on the ARP queue. 2532 This clashes with TCP queueing. 2533 2534 2004-11-28 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2535 * etharp.*: Fixed race condition from ARP request to ARP timeout. 2536 Halved the ARP period, doubled the period counts. 2537 ETHARP_MAX_PENDING now should be at least 2. This prevents 2538 the counter from reaching 0 right away (which would allow 2539 too little time for ARP responses to be received). 2540 2541 2004-11-25 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2542 * dhcp.c: Decline messages were not multicast but unicast. 2543 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD. 2544 Do not try hard to insert arbitrary packet's source address, 2545 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD. 2546 etharp_query() now always DOES call ETHARP_TRY_HARD so that users 2547 querying an address will see it appear in the cache (DHCP could 2548 suffer from this when a server invalidly gave an in-use address.) 2549 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are 2550 comparing network addresses (identifiers), not the network masks 2551 themselves. 2552 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given 2553 IP address actually belongs to the network of the given interface. 2554 2555 2004-11-24 Kieran Mansley <kjm25 (a] cam.ac.uk> 2556 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state. 2557 2558 (STABLE-1_1_0-RC1) 2559 2560 2004-10-16 Kieran Mansley <kjm25 (a] cam.ac.uk> 2561 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately, 2562 even if one is already pending, if the rcv_wnd is above a threshold 2563 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a 2564 delayed ACK in order to open the window if the stack is only receiving data. 2565 2566 2004-09-12 Kieran Mansley <kjm25 (a] cam.ac.uk> 2567 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen. 2568 2569 2004-08-20 Tony Mountifield <tony (a] softins.co.uk> 2570 * etharp.c: Make sure the first pbuf queued on an ARP entry 2571 is properly ref counted. 2572 2573 2004-07-27 Tony Mountifield <tony (a] softins.co.uk> 2574 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler 2575 warnings about comparison. 2576 * pbuf.c: Stopped compiler complaining of empty if statement 2577 when LWIP_DEBUGF() empty. Closed an unclosed comment. 2578 * tcp.c: Stopped compiler complaining of empty if statement 2579 when LWIP_DEBUGF() empty. 2580 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons(). 2581 * inet.c: Added a couple of casts to quiet the compiler. 2582 No need to test isascii(c) before isdigit(c) or isxdigit(c). 2583 2584 2004-07-22 Tony Mountifield <tony (a] softins.co.uk> 2585 * inet.c: Made data types consistent in inet_ntoa(). 2586 Added casts for return values of checksum routines, to pacify compiler. 2587 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c 2588 Small corrections to some debugging statements, to pacify compiler. 2589 2590 2004-07-21 Tony Mountifield <tony (a] softins.co.uk> 2591 * etharp.c: Removed spurious semicolon and added missing end-of-comment. 2592 * ethernetif.c Updated low_level_output() to match prototype for 2593 netif->linkoutput and changed low_level_input() similarly for consistency. 2594 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype 2595 of raw_recv() in raw.h and so avoid compiler error. 2596 * sockets.c: Added trivial (int) cast to keep compiler happier. 2597 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros. 2598 2599 (STABLE-1_0_0) 2600 2601 ++ Changes: 2602 2603 2004-07-05 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2604 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure 2605 your cc.h file defines this either 1 or 0. If non-defined, 2606 defaults to 1. 2607 * .c: Added <string.h> and <errno.h> includes where used. 2608 * etharp.c: Made some array indices unsigned. 2609 2610 2004-06-27 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2611 * netif.*: Added netif_set_up()/down(). 2612 * dhcp.c: Changes to restart program flow. 2613 2614 2004-05-07 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2615 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a 2616 single-pass lookup for different candidates. Should exploit locality. 2617 2618 2004-04-29 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2619 * tcp*.c: Cleaned up source comment documentation for Doxygen processing. 2620 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC. 2621 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by 2622 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option. 2623 2624 ++ Bug fixes: 2625 2626 2004-04-27 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2627 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution 2628 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access 2629 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix 2630 is to prefix the 14-bit Ethernet headers with two padding bytes. 2631 2632 2004-04-23 Leon Woestenberg <leon.woestenberg (a] gmx.net> 2633 * ip_addr.c: Fix in the ip_addr_isbroadcast() check. 2634 * etharp.c: Fixed the case where the packet that initiates the ARP request 2635 is not queued, and gets lost. Fixed the case where the packets destination 2636 address is already known; we now always queue the packet and perform an ARP 2637 request. 2638 2639 (STABLE-0_7_0) 2640 2641 ++ Bug fixes: 2642 2643 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition. 2644 * Fixed TCP bug in dequeueing of FIN from out of order segment queue. 2645 * Fixed two possible NULL references in rare cases. 2646 2647 (STABLE-0_6_6) 2648 2649 ++ Bug fixes: 2650 2651 * Fixed DHCP which did not include the IP address in DECLINE messages. 2652 2653 ++ Changes: 2654 2655 * etharp.c has been hauled over a bit. 2656 2657 (STABLE-0_6_5) 2658 2659 ++ Bug fixes: 2660 2661 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic. 2662 * Packets sent from ARP queue had invalid source hardware address. 2663 2664 ++ Changes: 2665 2666 * Pass-by ARP requests do now update the cache. 2667 2668 ++ New features: 2669 2670 * No longer dependent on ctype.h. 2671 * New socket options. 2672 * Raw IP pcb support. 2673 2674 (STABLE-0_6_4) 2675 2676 ++ Bug fixes: 2677 2678 * Some debug formatters and casts fixed. 2679 * Numereous fixes in PPP. 2680 2681 ++ Changes: 2682 2683 * DEBUGF now is LWIP_DEBUGF 2684 * pbuf_dechain() has been re-enabled. 2685 * Mentioned the changed use of CVS branches in README. 2686 2687 (STABLE-0_6_3) 2688 2689 ++ Bug fixes: 2690 2691 * Fixed pool pbuf memory leak in pbuf_alloc(). 2692 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain. 2693 Reported by Savin Zlobec. 2694 2695 * PBUF_POOL chains had their tot_len field not set for non-first 2696 pbufs. Fixed in pbuf_alloc(). 2697 2698 ++ New features: 2699 2700 * Added PPP stack contributed by Marc Boucher 2701 2702 ++ Changes: 2703 2704 * Now drops short packets for ICMP/UDP/TCP protocols. More robust. 2705 2706 * ARP queueuing now queues the latest packet instead of the first. 2707 This is the RFC recommended behaviour, but can be overridden in 2708 lwipopts.h. 2709 2710 (0.6.2) 2711 2712 ++ Bugfixes: 2713 2714 * TCP has been fixed to deal with the new use of the pbuf->ref 2715 counter. 2716 2717 * DHCP dhcp_inform() crash bug fixed. 2718 2719 ++ Changes: 2720 2721 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed 2722 pbuf_refresh(). This has sped up pbuf pool operations considerably. 2723 Implemented by David Haas. 2724 2725 (0.6.1) 2726 2727 ++ New features: 2728 2729 * The packet buffer implementation has been enhanced to support 2730 zero-copy and copy-on-demand for packet buffers which have their 2731 payloads in application-managed memory. 2732 Implemented by David Haas. 2733 2734 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy 2735 if an outgoing packet can be directly sent on the link, or perform 2736 a copy-on-demand when necessary. 2737 2738 The application can safely assume the packet is sent, and the RAM 2739 is available to the application directly after calling udp_send() 2740 or similar function. 2741 2742 ++ Bugfixes: 2743 2744 * ARP_QUEUEING should now correctly work for all cases, including 2745 PBUF_REF. 2746 Implemented by Leon Woestenberg. 2747 2748 ++ Changes: 2749 2750 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer 2751 to a '0.0.0.0' IP address. 2752 2753 * The packet buffer implementation is changed. The pbuf->ref counter 2754 meaning has changed, and several pbuf functions have been 2755 adapted accordingly. 2756 2757 * netif drivers have to be changed to set the hardware address length field 2758 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC). 2759 See the contrib/ports/c16x cs8900 driver as a driver example. 2760 2761 * netif's have a dhcp field that must be initialized to NULL by the driver. 2762 See the contrib/ports/c16x cs8900 driver as a driver example. 2763 2764 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are 2765 logged in CVS but have not been explained here. 2766 2767 (0.5.3) Changes since version 0.5.2 2768 2769 ++ Bugfixes: 2770 2771 * memp_malloc(MEMP_API_MSG) could fail with multiple application 2772 threads because it wasn't protected by semaphores. 2773 2774 ++ Other changes: 2775 2776 * struct ip_addr now packed. 2777 2778 * The name of the time variable in arp.c has been changed to ctime 2779 to avoid conflicts with the time() function. 2780 2781 (0.5.2) Changes since version 0.5.1 2782 2783 ++ New features: 2784 2785 * A new TCP function, tcp_tmr(), now handles both TCP timers. 2786 2787 ++ Bugfixes: 2788 2789 * A bug in tcp_parseopt() could cause the stack to hang because of a 2790 malformed TCP option. 2791 2792 * The address of new connections in the accept() function in the BSD 2793 socket library was not handled correctly. 2794 2795 * pbuf_dechain() did not update the ->tot_len field of the tail. 2796 2797 * Aborted TCP connections were not handled correctly in all 2798 situations. 2799 2800 ++ Other changes: 2801 2802 * All protocol header structs are now packed. 2803 2804 * The ->len field in the tcp_seg structure now counts the actual 2805 amount of data, and does not add one for SYN and FIN segments. 2806 2807 (0.5.1) Changes since version 0.5.0 2808 2809 ++ New features: 2810 2811 * Possible to run as a user process under Linux. 2812 2813 * Preliminary support for cross platform packed structs. 2814 2815 * ARP timer now implemented. 2816 2817 ++ Bugfixes: 2818 2819 * TCP output queue length was badly initialized when opening 2820 connections. 2821 2822 * TCP delayed ACKs were not sent correctly. 2823 2824 * Explicit initialization of BSS segment variables. 2825 2826 * read() in BSD socket library could drop data. 2827 2828 * Problems with memory alignment. 2829 2830 * Situations when all TCP buffers were used could lead to 2831 starvation. 2832 2833 * TCP MSS option wasn't parsed correctly. 2834 2835 * Problems with UDP checksum calculation. 2836 2837 * IP multicast address tests had endianess problems. 2838 2839 * ARP requests had wrong destination hardware address. 2840 2841 ++ Other changes: 2842 2843 * struct eth_addr changed from u16_t[3] array to u8_t[6]. 2844 2845 * A ->linkoutput() member was added to struct netif. 2846 2847 * TCP and UDP ->dest_* struct members where changed to ->remote_*. 2848 2849 * ntoh* macros are now null definitions for big endian CPUs. 2850 2851 (0.5.0) Changes since version 0.4.2 2852 2853 ++ New features: 2854 2855 * Redesigned operating system emulation layer to make porting easier. 2856 2857 * Better control over TCP output buffers. 2858 2859 * Documenation added. 2860 2861 ++ Bugfixes: 2862 2863 * Locking issues in buffer management. 2864 2865 * Bugfixes in the sequential API. 2866 2867 * IP forwarding could cause memory leakage. This has been fixed. 2868 2869 ++ Other changes: 2870 2871 * Directory structure somewhat changed; the core/ tree has been 2872 collapsed. 2873 2874 (0.4.2) Changes since version 0.4.1 2875 2876 ++ New features: 2877 2878 * Experimental ARP implementation added. 2879 2880 * Skeleton Ethernet driver added. 2881 2882 * Experimental BSD socket API library added. 2883 2884 ++ Bugfixes: 2885 2886 * In very intense situations, memory leakage could occur. This has 2887 been fixed. 2888 2889 ++ Other changes: 2890 2891 * Variables named "data" and "code" have been renamed in order to 2892 avoid name conflicts in certain compilers. 2893 2894 * Variable++ have in appliciable cases been translated to ++variable 2895 since some compilers generate better code in the latter case. 2896 2897 (0.4.1) Changes since version 0.4 2898 2899 ++ New features: 2900 2901 * TCP: Connection attempts time out earlier than data 2902 transmissions. Nagle algorithm implemented. Push flag set on the 2903 last segment in a burst. 2904 2905 * UDP: experimental support for UDP-Lite extensions. 2906 2907 ++ Bugfixes: 2908 2909 * TCP: out of order segments were in some cases handled incorrectly, 2910 and this has now been fixed. Delayed acknowledgements was broken 2911 in 0.4, has now been fixed. Binding to an address that is in use 2912 now results in an error. Reset connections sometimes hung an 2913 application; this has been fixed. 2914 2915 * Checksum calculation sometimes failed for chained pbufs with odd 2916 lengths. This has been fixed. 2917 2918 * API: a lot of bug fixes in the API. The UDP API has been improved 2919 and tested. Error reporting and handling has been 2920 improved. Logical flaws and race conditions for incoming TCP 2921 connections has been found and removed. 2922 2923 * Memory manager: alignment issues. Reallocating memory sometimes 2924 failed, this has been fixed. 2925 2926 * Generic library: bcopy was flawed and has been fixed. 2927 2928 ++ Other changes: 2929 2930 * API: all datatypes has been changed from generic ones such as 2931 ints, to specified ones such as u16_t. Functions that return 2932 errors now have the correct type (err_t). 2933 2934 * General: A lot of code cleaned up and debugging code removed. Many 2935 portability issues have been fixed. 2936 2937 * The license was changed; the advertising clause was removed. 2938 2939 * C64 port added. 2940 2941 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri 2942 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and 2943 fixing bugs! 2944 2945 (0.4) Changes since version 0.3.1 2946 2947 * Memory management has been radically changed; instead of 2948 allocating memory from a shared heap, memory for objects that are 2949 rapidly allocated and deallocated is now kept in pools. Allocation 2950 and deallocation from those memory pools is very fast. The shared 2951 heap is still present but is used less frequently. 2952 2953 * The memory, memory pool, and packet buffer subsystems now support 2954 4-, 2-, or 1-byte alignment. 2955 2956 * "Out of memory" situations are handled in a more robust way. 2957 2958 * Stack usage has been reduced. 2959 2960 * Easier configuration of lwIP parameters such as memory usage, 2961 TTLs, statistics gathering, etc. All configuration parameters are 2962 now kept in a single header file "lwipopts.h". 2963 2964 * The directory structure has been changed slightly so that all 2965 architecture specific files are kept under the src/arch 2966 hierarchy. 2967 2968 * Error propagation has been improved, both in the protocol modules 2969 and in the API. 2970 2971 * The code for the RTXC architecture has been implemented, tested 2972 and put to use. 2973 2974 * Bugs have been found and corrected in the TCP, UDP, IP, API, and 2975 the Internet checksum modules. 2976 2977 * Bugs related to porting between a 32-bit and a 16-bit architecture 2978 have been found and corrected. 2979 2980 * The license has been changed slightly to conform more with the 2981 original BSD license, including the advertisement clause. 2982 2983 (0.3.1) Changes since version 0.3 2984 2985 * Fix of a fatal bug in the buffer management. Pbufs with allocated 2986 RAM never returned the RAM when the pbuf was deallocated. 2987 2988 * TCP congestion control, window updates and retransmissions did not 2989 work correctly. This has now been fixed. 2990 2991 * Bugfixes in the API. 2992 2993 (0.3) Changes since version 0.2 2994 2995 * New and improved directory structure. All include files are now 2996 kept in a dedicated include/ directory. 2997 2998 * The API now has proper error handling. A new function, 2999 netconn_err(), now returns an error code for the connection in 3000 case of errors. 3001 3002 * Improvements in the memory management subsystem. The system now 3003 keeps a pointer to the lowest free memory block. A new function, 3004 mem_malloc2() tries to allocate memory once, and if it fails tries 3005 to free some memory and retry the allocation. 3006 3007 * Much testing has been done with limited memory 3008 configurations. lwIP now does a better job when overloaded. 3009 3010 * Some bugfixes and improvements to the buffer (pbuf) subsystem. 3011 3012 * Many bugfixes in the TCP code: 3013 3014 - Fixed a bug in tcp_close(). 3015 3016 - The TCP receive window was incorrectly closed when out of 3017 sequence segments was received. This has been fixed. 3018 3019 - Connections are now timed-out of the FIN-WAIT-2 state. 3020 3021 - The initial congestion window could in some cases be too 3022 large. This has been fixed. 3023 3024 - The retransmission queue could in some cases be screwed up. This 3025 has been fixed. 3026 3027 - TCP RST flag now handled correctly. 3028 3029 - Out of sequence data was in some cases never delivered to the 3030 application. This has been fixed. 3031 3032 - Retransmitted segments now contain the correct acknowledgment 3033 number and advertised window. 3034 3035 - TCP retransmission timeout backoffs are not correctly computed 3036 (ala BSD). After a number of retransmissions, TCP now gives up 3037 the connection. 3038 3039 * TCP connections now are kept on three lists, one for active 3040 connections, one for listening connections, and one for 3041 connections that are in TIME-WAIT. This greatly speeds up the fast 3042 timeout processing for sending delayed ACKs. 3043 3044 * TCP now provides proper feedback to the application when a 3045 connection has been successfully set up. 3046 3047 * More comments have been added to the code. The code has also been 3048 somewhat cleaned up. 3049 3050 (0.2) Initial public release. 3051
