HISTORY (CVS HEAD) * [Enter new changes just after this line - do not remove this line] ++ New features: ++ Bugfixes: (STABLE-1.4.1) ++ New features: 2012-03-25: Simon Goldschmidt (idea by Mason) * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h which are a simple wrapper to the correct lwIP include files. 2012-01-16: Simon Goldschmidt * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP 2011-12-17: Simon Goldschmidt * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW) (fixes bug #35061) 2011-09-27: Simon Goldschmidt * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989) (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h) 2011-09-21: Simon Goldschmidt * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on send (TCP only, bug #33820) 2011-09-21: Simon Goldschmidt * init.c: Converted runtime-sanity-checks into compile-time checks that can be disabled (since runtime checks can often not be seen on embedded targets) 2011-09-11: Simon Goldschmidt * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file to get a clear separation of which functions an application or port may use (task #11281) 2011-09-11: Simon Goldschmidt * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize initial local TCP/UDP ports (so that different port ranges are used after a reboot; bug #33818; this one added tcp_init/udp_init functions again) 2011-09-03: Simon Goldschmidt * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302) 2011-08-24: Simon Goldschmidt * opt.h, netif.h/.c: added netif remove callback (bug #32397) 2011-07-26: Simon Goldschmidt * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN) 2011-07-21: Simon Goldschmidt (patch by hanhui) * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour: Added pbuf flags to mark incoming packets as link-layer broadcast/multicast. Also added code to allow ip_forward() to forward non-broadcast packets to the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1). 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman) * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that pcb->state != LISTEN 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage) * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static memory message ++ Bugfixes: 2012-09-26: Simon Goldschmidt * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object 2012-09-26: patch by Henrik Persson * dhcp.c: patch #7843 Fix corner case with dhcp timeouts 2012-09-26: patch by Henrik Persson * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet 2012-08-22: Simon Goldschmidt * memp.c: fixed bug #37166: memp_sanity check loops itself 2012-05-08: Simon Goldschmidt * tcp_out.c: fixed bug: #36380 unsent_oversize mismatch in 1.4.1RC1 (this was a debug-check issue only) 2012-03-27: Simon Goldschmidt * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c 2012-03-27: Simon Goldschmidt (patch by Mason) * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the send MSS 2012-03-22: Simon Goldschmidt * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward 2012-03-20: Simon Goldschmidt (patch by Mason) * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic) * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian, possible bug on little endian system 2012-02-23: Simon Goldschmidt * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway (introduced when fixing bug# 33551) 2012-02-16: Simon Goldschmidt * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP() (bug #35541: PPP Memory Leak) 2012-02-16: Simon Goldschmidt * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway (introduced when fixing bug# 33551) 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage) * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed 2012-02-15: Simon Goldschmidt * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with MEMP_MEM_MALLOC==1 2012-02-12: Simon Goldschmidt * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on MSS > pcb->snd_wnd (by not creating segments bigger than half the window) 2012-02-11: Simon Goldschmidt * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait queue while closing 2012-01-22: Simon Goldschmidt * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR) 2012-01-21: Simon Goldschmidt * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb 2012-01-20: Simon Goldschmidt * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths 2012-01-20: Simon Goldschmidt * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy 2011-11-25: Simon Goldschmidt * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt tcp_active_pcbs in some cases 2011-11-23: Simon Goldschmidt * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with '#ifndef sys_msleep' 2011-11-22: Simon Goldschmidt * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when netif is brought down 2011-10-28: Simon Goldschmidt * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks 2011-10-23: Simon Goldschmidt * mem.c: fixed bug #34429: possible memory corruption with LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1 2011-10-18: Simon Goldschmidt * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard error value 2011-10-18: Simon Goldschmidt * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small windows (bug #34176 select after non-blocking send times out) 2011-10-18: Simon Goldschmidt * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't consider netif->mtu, causes slow network 2011-10-18: Simon Goldschmidt * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code 2011-10-18: Simon Goldschmidt * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS 2011-10-17: Simon Goldschmidt * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api 2011-10-13: Simon Goldschmidt * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no zero window is received) by starting the persist timer when a zero window is received, not when we have more data queued for sending than fits into the window 2011-10-13: Simon Goldschmidt * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex 2011-10-13: Simon Goldschmidt * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is used and not all protocols are enabled 2011-10-12: Simon Goldschmidt * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4 2011-10-09: Simon Goldschmidt * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect byte value when pcb->unacked != NULL 2011-10-09: Simon Goldschmidt * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong 2011-09-27: Simon Goldschmidt * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places... 2011-09-27: Simon Goldschmidt * tcp_in.c: fixed bug #28288: Data after FIN in oos queue 2011-09-27: Simon Goldschmidt * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf 2011-09-24: Simon Goldschmidt * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1 2011-09-23: Simon Goldschmidt * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for the last packet including FIN can lose data 2011-09-22: Simon Goldschmidt * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into account 2011-09-21: Simon Goldschmidt * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks in init.c 2011-09-20: Simon Goldschmidt * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts) 2011-09-11: Simon Goldschmidt * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs (bug #34019) 2011-09-09: Simon Goldschmidt * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if udp port matches 2011-09-03: Simon Goldschmidt * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet is aggregated and sent to application 2011-09-01: Simon Goldschmidt * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared to other options 2011-09-01: Simon Goldschmidt * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno 2011-08-24: Simon Goldschmidt * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling accept() on UDP connections 2011-08-24: Simon Goldschmidt * sockets.h: fixed bug #34057 socklen_t should be a typedef 2011-08-24: Simon Goldschmidt * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo) 2011-08-24: Simon Goldschmidt * dhcp.c: fixed bug #34122 dhcp: hostname can overflow 2011-08-24: Simon Goldschmidt * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr 2011-08-22: Simon Goldschmidt * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This merely prevents nagle from not transmitting fast after closing.) 2011-07-22: Simon Goldschmidt * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now lwip_send() sends as much as possible for non-blocking sockets 2011-07-22: Simon Goldschmidt * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ() at regular intervals from main level. 2011-07-21: Simon Goldschmidt * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by sending an ARP request when an ARP entry is used in the last minute before it would time out. 2011-07-04: Simon Goldschmidt * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0. 2011-06-26: Simon Goldschmidt * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by updating its documentation only. 2011-06-26: Simon Goldschmidt * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an unaligned pointer. 2011-06-26: Simon Goldschmidt * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1" 2011-05-25: Simon Goldschmidt * tcp.c: fixed bug #33398 (pointless conversion when checking TCP port range) (STABLE-1.4.0) ++ New features: 2011-03-27: Simon Goldschmidt * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and calculate it in tcp_zero_window_probe (the only place where it was used). 2010-11-21: Simon Goldschmidt * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif (fixes bug #31525). 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage) * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for IP_MULTICAST_LOOP at socket- and raw-API level. 2010-06-16: Simon Goldschmidt * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow link-layer-addressed UDP traffic to be received while a netif is down (just like DHCP during configuration) 2010-05-22: Simon Goldschmidt * many many files: bug #27352: removed packing from ip_addr_t, the packed version is now only used in protocol headers. Added global storage for current src/dest IP address while in input functions. 2010-05-16: Simon Goldschmidt * def.h: task #10391: Add preprocessor-macros for compile-time htonl calculation (and use them throughout the stack where applicable) 2010-05-16: Simon Goldschmidt * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h) 2010-05-16: Simon Goldschmidt * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own MEMP pool instead of the heap 2010-05-13: Simon Goldschmidt * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast packets to more than one pcb. 2010-05-02: Simon Goldschmidt * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1 2010-04-30: Simon Goldschmidt * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that take a precalculated checksum, added pbuf_fill_chksum() to copy data into a pbuf and at the same time calculating the checksum for that data 2010-04-29: Simon Goldschmidt * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying 2-byte-aligned IP addresses and MAC addresses 2010-04-28: Patch by Bill Auerbach * ip.c: Inline generating IP checksum to save a function call 2010-04-14: Simon Goldschmidt * tcpip.h/.c, timers.c: Added an overridable define to get informed when the tcpip_thread processes messages or timeouts to implement a watchdog. 2010-03-28: Simon Goldschmidt * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing fragment if LWIP_NETIF_TX_SINGLE_PBUF==1 2010-03-27: Simon Goldschmidt * etharp.c: Speedup TX by moving code from find_entry to etharp_output/ etharp_query to prevent unnecessary function calls (inspired by patch #7135). 2010-03-20: Simon Goldschmidt * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code since the linker cannot do this automatically to save space. 2010-03-20: Simon Goldschmidt * opt.h, etharp.c/.h: Added support for static ARP table entries 2010-03-14: Simon Goldschmidt * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum when creating TCP segments, not when (re-)transmitting them. 2010-03-07: Simon Goldschmidt * sockets.c: bug #28775 (select/event_callback: only check select_cb_list on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code. This should speed up receiving data on sockets as the select code in event_callback is only executed when select is waiting. 2010-03-06: Simon Goldschmidt * tcp_out.c: task #7013 (Create option to have all packets delivered to netif->output in one piece): Always copy to try to create single pbufs in tcp_write. 2010-03-06: Simon Goldschmidt * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv by not allocating a netbuf): added function netconn_recv_tcp_pbuf() for tcp netconns to receive pbufs, not netbufs; use that function for tcp sockets. 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040: Work on tcp_enqueue: Don't waste memory when chaining segments, added option TCP_OVERSIZE to prevent creating many small pbufs when calling tcp_write with many small blocks of data. Instead, pbufs are allocated larger than needed and the space is used for later calls to tcp_write. 2010-02-21: Simon Goldschmidt * stats.c/.h: Added const char* name to mem- and memp-stats for easier debugging. 2010-02-21: Simon Goldschmidt * tcp.h (and usages), added tcp_impl.h: Splitted API and internal implementation of tcp to make API usage cleare to application programmers 2010-02-14: Simon Goldschmidt/Stephane Lesage * ip_addr.h: Improved some defines working on ip addresses, added faster macro to copy addresses that cannot be NULL 2010-02-13: Simon Goldschmidt * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non- blocking send operation) 2010-02-12: Simon Goldschmidt * sockets.c/.h: Added a minimal version of posix fctl() to have a standardised way to set O_NONBLOCK for nonblocking sockets. 2010-02-12: Simon Goldschmidt * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated memory): added autoip_set_struct() and dhcp_set_struct() to let autoip and dhcp work with user-allocated structs instead of callin mem_malloc 2010-02-12: Simon Goldschmidt/Jeff Barber * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT 2010-02-12: Simon Goldschmidt * sys layer: task #10139 (Prefer statically allocated memory): converted mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t; converted sys_mbox_new/sys_sem_new to take pointers and return err_t; task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX to let sys.h use binary semaphores instead of mutexes - as before) 2010-02-09: Simon Goldschmidt (Simon Kallweit) * timers.c/.h: Added function sys_restart_timeouts() from patch #7085 (Restart system timeout handling) 2010-02-09: Simon Goldschmidt * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into netif.c) - loopif does not have to be created by the port any more, just define LWIP_HAVE_LOOPIF to 1. 2010-02-08: Simon Goldschmidt * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa inet_ntoa_r/ipaddr_ntoa_r 2010-02-08: Simon Goldschmidt * netif.h: Added netif_s/get_igmp_mac_filter() macros 2010-02-05: Simon Goldschmidt * netif.h: Added function-like macros to get/set the hostname on a netif 2010-02-04: Simon Goldschmidt * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to make changing the actual implementation behind the typedef easier. 2010-02-01: Simon Goldschmidt * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool for allocating memory when getaddrinfo() is called. 2010-01-31: Simon Goldschmidt * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse them once instead of parsing for every option. This also removes the need for mem_malloc from dhcp_recv and makes it possible to correctly retrieve the BOOTP file. 2010-01-30: simon Goldschmidt * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect the sockets array. 2010-01-29: Simon Goldschmidt (patch by Laura Garrett) * api.h, api_msg.c, sockets.c: Added except set support in select (patch #6860) 2010-01-29: Simon Goldschmidt (patch by Laura Garrett) * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c: Add non-blocking support for connect (partly from patch #6860), plus many cleanups in socket & netconn API. 2010-01-27: Simon Goldschmidt * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605 2010-01-26: Simon Goldschmidt * snmp: Use memp pools for snmp instead of the heap; added 4 new pools. 2010-01-14: Simon Goldschmidt * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback() 2010-01-13: Simon Goldschmidt * mem.c: The heap now may be moved to user-defined memory by defining LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address (patch #6966 and bug #26133) 2010-01-10: Simon Goldschmidt (Bill Auerbach) * opt.h, memp.c: patch #6822 (Add option to place memory pools in separate arrays) 2010-01-10: Simon Goldschmidt * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define LWIP_RAND() for lwip-wide randomization (to be defined in cc.h) 2009-12-31: Simon Goldschmidt * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h added timers.c/.h: Separated timer implementation from semaphore/mbox implementation, moved timer implementation to timers.c/.h, timers are now only called from tcpip_thread or by explicitly checking them. (TASK#7235) 2009-12-27: Simon Goldschmidt * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE) ++ Bugfixes: 2011-04-20: Simon Goldschmidt * sys_arch.txt: sys_arch_timeouts() is not needed any more. 2011-04-13: Simon Goldschmidt * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by using ports in the IANA private/dynamic range (49152 through 65535). 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl: * etharp.h/.c: Fixed broken VLAN support. 2011-03-27: Simon Goldschmidt * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp pcbs) by checking if the pcb was bound (local_port != 0). 2011-03-27: Simon Goldschmidt * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice) 2011-03-27: Simon Goldschmidt * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and raw pcbs with LWIP_TCPIP_CORE_LOCKING==1. 2011-03-27: Simon Goldschmidt * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route is present never times out) by starting retransmission timer before checking route. 2011-03-22: Simon Goldschmidt * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only calling sio_read_abort() if the file descriptor is valid. 2011-03-14: Simon Goldschmidt * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect more than once can render a socket useless) since it mainly involves changing "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal. 2011-03-13: Simon Goldschmidt * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN: use EALRADY instead of -1 2011-03-13: Simon Goldschmidt * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the connection has been aborted by err_tcp (since this is not a normal closing procedure). 2011-03-13: Simon Goldschmidt * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind with pcb->state != CLOSED 2011-02-17: Simon Goldschmidt * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in documentation 2011-02-17: Simon Goldschmidt * many files: Added missing U/UL modifiers to fix 16-bit-arch portability. 2011-01-24: Simon Goldschmidt * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems 2010-12-02: Simon Goldschmidt * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal. 2010-11-23: Simon Goldschmidt * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for LWIP_SO_RCVBUF and ioctl/FIONREAD. 2010-11-23: Simon Goldschmidt * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet. 2010-11-23: Simon Goldschmidt * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after refusing 'refused_data' again. 2010-11-22: Simon Goldschmidt * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS after a successful nonblocking connection. 2010-11-22: Simon Goldschmidt * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr must be sent link-local 2010-11-22: Simon Goldschmidt * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for LWIP_TIMERS==0 2010-11-20: Simon Goldschmidt * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number 2010-11-20: Simon Goldschmidt * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to resemble other stacks. 2010-11-20: Simon Goldschmidt * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else no-copy TCP writes will never succeed. 2010-11-20: Simon Goldschmidt * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does not match documentation: return ERR_ARG instead of ERR_VAL if not initialized or wrong argument. 2010-10-20: Simon Goldschmidt * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16 2010-10-05: Simon Goldschmidt * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when replugging the network cable after an AutoIP address was assigned. 2010-08-10: Simon Goldschmidt * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs 2010-08-03: Simon Goldschmidt * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625) 2010-08-01: Simon Goldschmidt (patch by Greg Renda) * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big endian architectures) 2010-07-28: Simon Goldschmidt * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP disabled. 2010-07-27: Simon Goldschmidt * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no harm but never did anything 2010-07-21: Simon Goldschmidt * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not add IP options) 2010-07-16: Kieran Mansley * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator 2010-07-10: Simon Goldschmidt * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options 2010-06-30: Simon Goldschmidt * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in netconn_delete) 2010-06-28: Kieran Mansley * timers.c remove unportable printing of C function pointers 2010-06-24: Simon Goldschmidt * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading 2010-06-24: Simon Goldschmidt * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly implemented shutdown at socket level. 2010-06-21: Simon Goldschmidt * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has problems with zero-copy DMA MACs) by adding custom pbufs and implementing custom pbufs that reference other (original) pbufs. Additionally set IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side. 2010-06-15: Simon Goldschmidt * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses 2010-06-14: Simon Goldschmidt * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses 2010-06-12: Simon Goldschmidt * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop state 2010-05-17: Simon Goldschmidt * netdb.c: Correctly NULL-terminate h_addr_list 2010-05-16: Simon Goldschmidt * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent "symbol already defined" i.e. when linking to winsock 2010-05-05: Simon Goldschmidt * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may overflow) 2010-04-21: Simon Goldschmidt * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening connection) 2010-03-28: Luca Ceresoli * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers 2010-03-27: Luca Ceresoli * mib2.c: patch #7130: remove meaningless const qualifiers 2010-03-26: Simon Goldschmidt * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too 2010-03-26: Simon Goldschmidt * various files: Fixed compiling with different options disabled (TCP/UDP), triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled 2010-03-25: Simon Goldschmidt * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly 2010-03-25: Simon Goldschmidt * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side overrunning our rcv_wnd in ooseq case. 2010-03-22: Simon Goldschmidt * tcp.c: tcp_listen() did not copy the pcb's prio. 2010-03-19: Simon Goldschmidt * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set 2010-03-14: Simon Goldschmidt * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h and basing PBUF_LINK_HLEN on it. 2010-03-08: Simon Goldschmidt * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections when assiging routable address): when checking incoming packets and aborting existing connection on address change, filter out link-local addresses. 2010-03-06: Simon Goldschmidt * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING 2010-03-06: Simon Goldschmidt * ipv4/ip.c: Don't try to forward link-local addresses 2010-03-06: Simon Goldschmidt * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal- addresses to gw 2010-03-05: Simon Goldschmidt * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type and state. 2010-03-05: Simon Goldschmidt * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split into multiple calls to tcp_write. 2010-02-21: Simon Goldschmidt * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep the implementation of DNS_USES_STATIC_BUF==1) 2010-02-20: Simon Goldschmidt * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement close() vs. shutdown(). Now the application does not get any more recv callbacks after calling tcp_close(). Added tcp_shutdown(). 2010-02-19: Simon Goldschmidt * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent confusion with realloc() 2010-02-15: Simon Goldschmidt/Stephane Lesage * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK (fixes bug #28899) 2010-02-14: Simon Goldschmidt * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and admin-status of a netif are up 2010-02-14: Simon Goldschmidt * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet reception and is not really necessary 2010-02-14: Simon Goldschmidt * etharp.c/.h: Fixed ARP input processing: only add a new entry if a request was directed as us (RFC 826, Packet Reception), otherwise only update existing entries; internalized some functions 2010-02-14: Simon Goldschmidt * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be disabled on netif used for PPPoE) by adding a new netif flag (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet device but prevents usage of ARP (so that ethernet_input can be used for PPPoE). 2010-02-12: Simon Goldschmidt * netif.c: netif_set_link_up/down: only do something if the link state actually changes 2010-02-12: Simon Goldschmidt/Stephane Lesage * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking connect) 2010-02-12: Simon Goldschmidt * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h) 2010-02-09: Simon Goldschmidt * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110 (recv() makes receive window update for data that wasn't received by application) 2010-02-09: Simon Goldschmidt/Stephane Lesage * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out or any netconn_recv() error) 2010-02-09: Simon Goldschmidt * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets) 2010-02-09: Simon Goldschmidt * netif.c: For loopback packets, adjust the stats- and snmp-counters for the loopback netif. 2010-02-08: Simon Goldschmidt * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity since they are not used anywhere else. 2010-02-08: Simon Goldschmidt (Stéphane Lesage) * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats (patch from bug #28798) 2010-02-08: Simon Goldschmidt (Stéphane Lesage) * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and another bug when LWIP_RAND() returns zero. 2010-02-04: Simon Goldschmidt * nearly every file: Use macros defined in ip_addr.h (some of them new) to work with IP addresses (preparation for bug #27352 - Change ip_addr from struct to typedef (u32_t) - and better code). 2010-01-31: Simon Goldschmidt * netif.c: Don't call the link-callback from netif_set_up/down() since this invalidly retriggers DHCP. 2010-01-29: Simon Goldschmidt * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the portability file inet.h and its contents from the stack: moved htonX- functions to def.h (and the new def.c - they are not ipv4 dependent), let inet.h depend on ip_addr.h and not the other way round. This fixes bug #28732. 2010-01-28: Kieran Mansley * tcp.c: Ensure ssthresh >= 2*MSS 2010-01-27: Simon Goldschmidt * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv callback can lead to accessing unallocated memory. As a consequence, ERR_ABRT means the application has called tcp_abort()! 2010-01-25: Simon Goldschmidt * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY not implemented in SNMP): write-only or not-accessible are still returned by getnext (though not by get) 2010-01-24: Simon Goldschmidt * snmp: Renamed the private mib node from 'private' to 'mib_private' to not use reserved C/C++ keywords 2010-01-23: Simon Goldschmidt * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less than 1 ms 2010-01-21: Simon Goldschmidt * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called if tcp_enqueue fails) both in raw- and netconn-API 2010-01-19: Simon Goldschmidt * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp 2010-01-18: Iordan Neshev/Simon Goldschmidt * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some bugfix backports from 2.4.x. 2010-01-18: Simon Goldschmidt * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong 2010-01-17: Simon Goldschmidt * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c): task #10102: "netconn: clean up conn->err threading issues" by adding error return value to struct api_msg_msg 2010-01-17: Simon Goldschmidt * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept() to return err_t (bugs #27709 and #28087) 2010-01-14: Simon Goldschmidt * ...: Use typedef for function prototypes throughout the stack. 2010-01-13: Simon Goldschmidt * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive window = 0) by correctly draining recvmbox/acceptmbox 2010-01-11: Simon Goldschmidt * pap.c: Fixed bug #13315 (PPP PAP authentication can result in erroneous callbacks) by copying the code from recent pppd 2010-01-10: Simon Goldschmidt * raw.c: Fixed bug #28506 (raw_bind should filter received packets) 2010-01-10: Simon Goldschmidt * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)()) 2010-01-08: Simon Goldschmidt * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535) 2010-01-08: Simon Goldschmidt * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string passed to dns_local_addhost() might be volatile 2010-01-07: Simon Goldschmidt * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too 2010-01-06: Simon Goldschmidt * netdb.h: Fixed bug #28496: missing include guards in netdb.h 2009-12-31: Simon Goldschmidt * many ppp files: Reorganised PPP source code from ucip structure to pppd structure to easily compare our code against the pppd code (around v2.3.1) 2009-12-27: Simon Goldschmidt * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted unit test (STABLE-1.3.2) ++ New features: 2009-10-27 Simon Goldschmidt/Stephan Lesage * netifapi.c/.h: Added netifapi_netif_set_addr() 2009-10-07 Simon Goldschmidt/Fabian Koch * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO) 2009-08-26 Simon Goldschmidt/Simon Kallweit * slipif.c/.h: bug #26397: SLIP polling support 2009-08-25 Simon Goldschmidt * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN), New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK. 2009-08-25 Simon Goldschmidt * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*) 2009-08-24 Jakob Stoklund Olesen * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond to netif_set_link_up(). 2009-08-23 Simon Goldschmidt * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state to a human-readable string. ++ Bugfixes: 2009-12-24: Kieran Mansley * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing (BUG#28241) 2009-12-06: Simon Goldschmidt * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can be statically allocated (like in ucip) 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev) * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT 2009-12-03: Simon Goldschmidt * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit could have non-zero length 2009-12-02: Simon Goldschmidt * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting tcp_input_pcb until after calling the pcb's callbacks 2009-11-29: Simon Goldschmidt * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of- sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code 2009-11-29: Simon Goldschmidt * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty 2009-11-26: Simon Goldschmidt * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending segment 2009-11-26: Simon Goldschmidt * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle algorithm at PCB level 2009-11-22: Simon Goldschmidt * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach) * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when reusing time-wait pcb 2009-11-20: Simon Goldschmidt (patch by Albert Bartel) * sockets.c: Fixed bug #28062: Data received directly after accepting does not wake up select 2009-11-11: Simon Goldschmidt * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo) 2009-10-30: Simon Goldschmidt * opt.h: Increased default value for TCP_MSS to 536, updated default value for TCP_WND to 4*TCP_MSS to keep delayed ACK working. 2009-10-28: Kieran Mansley * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code to follow algorithm from TCP/IP Illustrated 2009-10-27: Kieran Mansley * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK 2009-10-25: Simon Goldschmidt * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if pcb->recv is NULL to keep rcv_wnd correct) 2009-10-25: Simon Goldschmidt * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state 2009-10-23: Simon Goldschmidt (David Empson) * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes 2009-10-21: Simon Goldschmidt * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and trailing 1 byte len (SYN/FIN) 2009-10-21: Simon Goldschmidt * tcp_out.c: Fixed bug #27315: zero window probe and FIN 2009-10-19: Simon Goldschmidt * dhcp.c/.h: Minor code simplification (don't store received pbuf, change conditional code to assert where applicable), check pbuf length before testing for valid reply 2009-10-19: Simon Goldschmidt * dhcp.c: Removed most calls to udp_connect since they aren't necessary when using udp_sendto_if() - always stay connected to IP_ADDR_ANY. 2009-10-16: Simon Goldschmidt * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is enabled 2009-10-15: Simon Goldschmidt (Oleg Tyshev) * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit 2009-10-15: Simon Goldschmidt * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv() timeout 2009-10-15: Simon Goldschmidt * autoip.c: Fixed bug #27704: autoip starts with wrong address LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead of network byte order 2009-10-11 Simon Goldschmidt (Jörg Kesten) * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments which are not consecutive when retransmitting unacked segments 2009-10-09 Simon Goldschmidt * opt.h: Fixed default values of some stats to only be enabled if used Fixes bug #27338: sys_stats is defined when NO_SYS = 1 2009-08-30 Simon Goldschmidt * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK function" by checking for loopback before calling ip_frag 2009-08-25 Simon Goldschmidt * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0 2009-08-23 Simon Goldschmidt * ppp.c: bug #27078: Possible memory leak in pppInit() 2009-08-23 Simon Goldschmidt * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result is error. 2009-08-23 Simon Goldschmidt * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF Fixed wrong parenthesis, added check in init.c 2009-08-23 Simon Goldschmidt * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms 2009-08-23 Simon Goldschmidt * many ppp files: bug #27267: Added include to string.h where needed 2009-08-23 Simon Goldschmidt * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian) (STABLE-1.3.1) ++ New features: 2009-05-10 Simon Goldschmidt * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only one pbuf to help MACs that don't support scatter-gather DMA. 2009-05-09 Simon Goldschmidt * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive extended info about the currently received packet. 2009-04-27 Simon Goldschmidt * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1 2009-04-25 Simon Goldschmidt * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next bigger malloc pool if one is empty (only usable with MEM_USE_POOLS). 2009-04-21 Simon Goldschmidt * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static hosts table. New configuration options DNS_LOCAL_HOSTLIST and DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined as an external function for lookup. 2009-04-15 Simon Goldschmidt * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique 2009-03-31 Kieran Mansley * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for TCP timestamp options, off by default. Rework tcp_enqueue() to take option flags rather than specified option data 2009-02-18 Simon Goldschmidt * cc.h: Added printf formatter for size_t: SZT_F 2009-02-16 Simon Goldschmidt (patch by Rishi Khan) * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast pings 2009-02-12 Simon Goldschmidt * init.h: Added LWIP_VERSION to get the current version of the stack 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler) * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc is otherwise used) 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach) * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial() is only used by UDPLITE at present, so conditionalise it. 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli) * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP "seed" address. This should reduce AUTOIP conflicts if LWIP_AUTOIP_CREATE_SEED_ADDR is overridden. 2008-10-02 Jonathan Larmour and Rishi Khan * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking socket. 2008-06-30 Simon Goldschmidt * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows mem_free to run between mem_malloc iterations. Added illegal counter for mem stats. 2008-06-27 Simon Goldschmidt * stats.h/.c, some other files: patch #6483: stats module improvement: Added defines to display each module's statistic individually, added stats defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter. 2008-06-17 Simon Goldschmidt * err.h: patch #6459: Made err_t overridable to use a more efficient type (define LWIP_ERR_T in cc.h) 2008-06-17 Simon Goldschmidt * slipif.c: patch #6480: Added a configuration option for slipif for symmetry to loopif 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli) * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly modified version of patch # 6370: Moved loopif code to netif.c so that loopback traffic is supported on all netifs (all local IPs). Added option to limit loopback packets for each netifs. ++ Bugfixes: 2009-08-12 Kieran Mansley * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when out of window or out of order properly 2009-08-12 Kieran Mansley * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1 2009-07-28 Simon Goldschmidt * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s 2009-07-27 Kieran Mansley * api.h api_msg.h netdb.h sockets.h: add missing #include directives 2009-07-09 Kieran Mansley * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for recv_avail and don't increment counters until message successfully sent to mbox 2009-06-25 Kieran Mansley * api_msg.c api.h: BUG26722: initialise netconn write variables in netconn_alloc 2009-06-25 Kieran Mansley * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set 2009-06-25 Kieran Mansley * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct simultaneous close behaviour, and make snd_nxt have the same meaning as in the RFCs. 2009-05-12 Simon Goldschmidt * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on arp_table / uses etharp_query" by adding etharp_gratuitous() 2009-05-12 Simon Goldschmidt * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options to the IP header (used by igmp_ip_output_if) 2009-05-06 Simon Goldschmidt * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if defined) for SWAP_BYTES_IN_WORD to speed up checksumming. 2009-05-05 Simon Goldschmidt * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select() to crash 2009-05-04 Simon Goldschmidt * init.c: snmp was not initialized in lwip_init() 2009-05-04 Frédéric Bernon * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled. 2009-05-03 Simon Goldschmidt * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full (and unsent->next == NULL) 2009-05-02 Simon Goldschmidt * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after 1.3.0 in CVS only) - fixes compilation of ppp_oe.c 2009-05-02 Simon Goldschmidt * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields 2009-05-01 Simon Goldschmidt * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets 2009-05-01 Simon Goldschmidt * ppp.c: bug #24228: Memory corruption with PPP and DHCP 2009-04-29 Frédéric Bernon * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception of broadcast packets even when this option wasn't set. Port maintainers which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h. If you want this option also filter broadcast on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1 in opt.h. 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and DHCP/AUTOIP cooperation 2009-04-25 Simon Goldschmidt, Oleg Tyshev * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd Fixed by sorting the unsent and unacked queues (segments are inserted at the right place in tcp_output and tcp_rexmit). 2009-04-25 Simon Goldschmidt * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation when debugging": memp_sizes contained the wrong sizes (including sanity regions); memp pools for MEM_USE_POOLS were too small 2009-04-24 Simon Goldschmidt, Frédéric Bernon * inet.c: patch #6765: Fix a small problem with the last changes (incorrect behavior, with with ip address string not ended by a '\0', a space or a end of line) 2009-04-19 Simon Goldschmidt * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails, pcb->err is called, not pcb->connected (with an error code). 2009-04-19 Simon Goldschmidt * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with no-copy-tcpwrite": deallocate option data, only concat segments with same flags 2009-04-19 Simon Goldschmidt * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated in the header pbuf, not the data pbuf) 2009-04-18 Simon Goldschmidt * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore() 2009-04-15 Simon Goldschmidt * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp 2009-04-15 Simon Goldschmidt * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in 2009-04-15 Simon Goldschmidt * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function ip_hinted_output() (for smaller code mainly) 2009-04-15 Simon Goldschmidt * inet.c: patch #6765: Supporting new line characters in inet_aton() 2009-04-15 Simon Goldschmidt * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option; Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu is big enough in dhcp_start 2009-04-15 Simon Goldschmidt * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak 2009-04-15 Simon Goldschmidt * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY 2009-04-15 Simon Goldschmidt * sockets.c: bug #26121: set_errno can be overridden 2009-04-09 Kieran Mansley (patch from Luca Ceresoli ) * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when LWIP_TCP==0 2009-04-09 Kieran Mansley (patch from Roy Lee ) * tcp.h: Patch#6802 Add do-while-clauses to those function like macros in tcp.h 2009-03-31 Kieran Mansley * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window updates are calculated and sent (BUG20515) * tcp_in.c: cope with SYN packets received during established states, and retransmission of initial SYN. * tcp_out.c: set push bit correctly when tcp segments are merged 2009-03-27 Kieran Mansley * tcp_out.c set window correctly on probes (correcting change made yesterday) 2009-03-26 Kieran Mansley * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping connections where no reset required (bug #25622) * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes (bug #20779) 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach) * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be too small depending on MEM_ALIGNMENT 2009-02-16 Simon Goldschmidt * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard; converted size argument of netconn_write to 'size_t' 2009-02-16 Simon Goldschmidt * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host by moving accept callback function pointer to TCP_PCB_COMMON 2009-02-12 Simon Goldschmidt * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size" option) 2009-02-11 Simon Goldschmidt * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start) 2009-02-11 Simon Goldschmidt * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize: RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv()) 2009-02-10 Simon Goldschmidt * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD: Accepts_pending is decrease on a corresponding listen pcb when a connection in state SYN_RCVD is close. 2009-01-28 Jonathan Larmour * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run out of pool pbufs. 2008-12-19 Simon Goldschmidt * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2 2008-12-10 Tamas Somogyi, Frédéric Bernon * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and port uses deleted netbuf. 2008-10-18 Simon Goldschmidt * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length in tcp_parseopt 2008-10-15 Simon Goldschmidt * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers by packing the struct ip_reass_helper. 2008-10-03 David Woodhouse, Jonathan Larmour * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address. 2008-10-02 Jonathan Larmour * dns.c: Hard-code structure sizes, to avoid issues on some compilers where padding is included. 2008-09-30 Jonathan Larmour * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an assertion check that addrlen isn't NULL. 2008-09-30 Jonathan Larmour * tcp.c: Fix bug #24227, wrong error message in tcp_bind. 2008-08-26 Simon Goldschmidt * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h 2008-08-14 Simon Goldschmidt * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when tcp_close returns != ERR_OK) 2008-07-08 Frédéric Bernon * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters in macros, mainly if MEM_STATS=0 and MEMP_STATS=0). 2008-06-24 Jonathan Larmour * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused if tcp_seg_copy fails. 2008-06-17 Simon Goldschmidt * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations) and created defines for swapping bytes and folding u32 to u16. 2008-05-30 Kieran Mansley * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd rather than rcv_ann_wnd when deciding if packets are in-window. Contributed by 2008-05-30 Kieran Mansley * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow passing as function pointers when MEM_LIBC_MALLOC is defined. 2008-05-09 Jonathan Larmour * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to stop it being treated as a fatal error. 2008-04-15 Simon Goldschmidt * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP (flag now cleared) 2008-03-27 Simon Goldschmidt * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs or heap memory from interrupt context 2008-03-26 Simon Goldschmidt * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote host sent a zero mss as TCP option. (STABLE-1.3.0) ++ New features: 2008-03-10 Jonathan Larmour * inet_chksum.c: Allow choice of one of the sample algorithms to be made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM. 2008-01-22 Frédéric Bernon * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names. 2008-01-14 Frédéric Bernon * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the tcp_recv callback (see rawapi.txt). 2008-01-14 Frédéric Bernon, Marc Chaland * ip.c: Integrate patch #6369" ip_input : checking before realloc". 2008-01-12 Frédéric Bernon * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field netconn::sem per netconn::op_completed like suggested for the task #7490 "Add return value to sys_mbox_post". 2008-01-12 Frédéric Bernon * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE, DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues sizes), like suggested for the task #7490 "Add return value to sys_mbox_post". 2008-01-10 Frédéric Bernon * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490 "Add return value to sys_mbox_post". tcpip_callback is always defined as "blocking" ("block" parameter = 1). 2008-01-10 Frédéric Bernon * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490 "Add return value to sys_mbox_post". 2008-01-05 Frédéric Bernon * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h: Introduce changes for task #7490 "Add return value to sys_mbox_post" with some modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which indicate the number of pointers query by the mailbox. There is three defines in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the netconn::acceptmbox. Port maintainers, you can decide to just add this new parameter in your implementation, but to ignore it to keep the previous behavior. The new sys_mbox_trypost function return a value to know if the mailbox is full or if the message is posted. Take a look to sys_arch.txt for more details. This new function is used in tcpip_input (so, can be called in an interrupt context since the function is not blocking), and in recv_udp and recv_raw. 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c, tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add documentation in the rawapi.txt file. 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm) * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer 2007-12-31 Frédéric Bernon, Luca Ceresoli * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets in autoip". The change in etharp_raw could be removed, since all calls to etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be wrong in the future. 2007-12-30 Frédéric Bernon, Tom Evans * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address Filtering" reported by Tom Evans. 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c, sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API applications have to call 'tcp_accepted(pcb)' in their accept callback to keep accepting new connections. 2007-12-13 Frédéric Bernon * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result" by err_t type. Add a new err_t code "ERR_INPROGRESS". 2007-12-12 Frédéric Bernon * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles are the one which have ram usage. 2007-12-05 Frédéric Bernon * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static set of variables (=0) or a local one (=1). In this last case, your port should provide a function "struct hostent* sys_thread_hostent( struct hostent* h)" which have to do a copy of "h" and return a pointer ont the "per-thread" copy. 2007-12-03 Simon Goldschmidt * ip.c: ip_input: check if a packet is for inp first before checking all other netifs on netif_list (speeds up packet receiving in most cases) 2007-11-30 Simon Goldschmidt * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access UDP: move a (connected) pcb selected for input to the front of the list of pcbs so that it is found faster next time. Same for RAW pcbs that have eaten a packet. 2007-11-28 Simon Goldschmidt * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS 2007-11-25 Simon Goldschmidt * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy algorithm. 2007-11-24 Simon Goldschmidt * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c to the new file netdb.c; included lwip_getaddrinfo. 2007-11-21 Simon Goldschmidt * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss based on the MTU of the netif used to send. Enabled by default. Disable by setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492. 2007-11-19 Frédéric Bernon * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name received match the name query), implement DNS_USES_STATIC_BUF (the place where copy dns payload to parse the response), return an error if there is no place for a new query, and fix some minor problems. 2007-11-16 Simon Goldschmidt * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c removed files: core/inet.c, core/inet6.c Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into inet and chksum part; changed includes in all lwIP files as appropriate 2007-11-16 Simon Goldschmidt * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential dns resolver function for netconn api (netconn_gethostbyname) and socket api (gethostbyname/gethostbyname_r). 2007-11-15 Jim Pettinato, Frédéric Bernon * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name requests with RAW api interface. Initialization is done in lwip_init() with build time options. DNS timer is added in tcpip_thread context. DHCP can set DNS server ip addresses when options are received. You need to set LWIP_DNS=1 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo" list with points to improve. 2007-11-06 Simon Goldschmidt * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined. 2007-11-06 Simon Goldschmidt * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include core header files in api.h (ip/tcp/udp/raw.h) to hide the internal implementation from netconn api applications. 2007-11-03 Frédéric Bernon * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP & RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled by default). Netconn API users can use the netconn_recv_bufsize macro to access it. This is a first release which have to be improve for TCP. Note it used the netconn::recv_avail which need to be more "thread-safe" (note there is already the problem for FIONREAD with lwip_ioctl/ioctlsocket). 2007-11-01 Frédéric Bernon, Marc Chaland * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c: Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api layer. This option enable to delayed TCP PUSH flag on multiple "write" calls. Note that previous "copy" parameter for "write" APIs is now called "apiflags". 2007-10-24 Frédéric Bernon * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than TCP_EVENT_xxx macros to get a code more readable. It could also help to remove some code (like we have talk in "patch #5919 : Create compile switch to remove select code"), but it could be done later. 2007-10-08 Simon Goldschmidt * many files: Changed initialization: many init functions are not needed any more since we now rely on the compiler initializing global and static variables to zero! 2007-10-06 Simon Goldschmidt * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY to enqueue the received pbufs so that multiple packets can be reassembled simultaneously and no static reassembly buffer is needed. 2007-10-05 Simon Goldschmidt * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so all netifs (or ports) can use it. 2007-10-05 Frédéric Bernon * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the common function to reduce a little bit the footprint (for all functions using only the "netif" parameter). 2007-10-03 Frédéric Bernon * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down, netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce a little bit the footprint (for all functions using only the "netif" parameter). 2007-09-15 Frédéric Bernon * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for IP_MULTICAST_TTL and IP_MULTICAST_IF. 2007-09-10 Frédéric Bernon * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime() each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime() or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro. This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only when it's queried (any direct call to "sysuptime" is changed by a call to snmp_get_sysuptime). 2007-09-09 Frédéric Bernon, Bill Florac * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP, and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags if you want IGMP on an interface. igmp_stop() is now called inside netif_remove(). igmp_report_groups() is now called inside netif_set_link_up() (need to have LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait the next query message to receive the matching multicast streams). 2007-09-08 Frédéric Bernon * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change). Use this new field to access to common pcb fields (ttl, tos, so_options, etc...). Enable to access to these fields with LWIP_TCP=0. 2007-09-05 Frédéric Bernon * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h, ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default). Be careful, disabling ICMP make your product non-compliant to RFC1122, but help to reduce footprint, and to reduce "visibility" on the Internet. 2007-09-05 Frédéric Bernon, Bill Florac * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new parameters have to be provided: a task name, and a task stack size. For this one, since it's platform dependant, you could define the best one for you in your lwipopts.h. For port maintainers, you can just add these new parameters in your sys_arch.c file, and but it's not mandatory, use them in your OS specific functions. 2007-09-05 Frédéric Bernon * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings inside init.c for task #7142 "Sanity check user-configurable values". 2007-09-04 Frédéric Bernon, Bill Florac * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the value). It will avoid potential fragmentation problems, use a counter to know how many times a group is used on an netif, and free it when all applications leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity check if LWIP_IGMP!=0). 2007-09-03 Frédéric Bernon * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement". Initialize igmp_mac_filter to NULL in netif_add (this field should be set in the netif's "init" function). Use the "imr_interface" field (for socket layer) and/or the "interface" field (for netconn layer), for join/leave operations. The igmp_join/leavegroup first parameter change from a netif to an ipaddr. This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany). 2007-08-30 Frédéric Bernon * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions from api/api_lib". Now netbuf API is independant of netconn, and can be used with other API (application based on raw API, or future "socket2" API). Ports maintainers just have to add src/api/netbuf.c in their makefile/projects. 2007-08-30 Frédéric Bernon, Jonathan Larmour * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check user-configurable values". 2007-08-29 Frédéric Bernon * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start. igmp_start is call inside netif_add. Now, igmp initialization is in the same spirit than the others modules. Modify some IGMP debug traces. 2007-08-29 Frédéric Bernon * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function" Add lwip_init function to regroup all modules initializations, and to provide a place to add code for task #7142 "Sanity check user-configurable values". Ports maintainers should remove direct initializations calls from their code, and add init.c in their makefiles. Note that lwip_init() function is called inside tcpip_init, but can also be used by raw api users since all calls are disabled when matching options are disabled. Also note that their is new options in opt.h, you should configure in your lwipopts.h (they are enabled per default). 2007-08-26 Marc Boucher * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL since they can under certain circumstances be called with an invalid conn pointer after the connection has been closed (and conn has been freed). 2007-08-25 Frédéric Bernon (Artem Migaev's Patch) * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up". Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set. 2007-08-22 Frédéric Bernon * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release. 2007-08-22 Frédéric Bernon * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT & ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the name is tcpip_input (we keep the name of 1.2.0 function). 2007-08-17 Jared Grubb * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool settings into new memp_std.h and optional user file lwippools.h. This adds more dynamic mempools, and allows the user to create an arbitrary number of mempools for mem_malloc. 2007-08-16 Marc Boucher * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function; otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely close the connection. 2007-08-16 Marc Boucher * sockets.c: lwip_accept(): check netconn_peer() error return. 2007-08-16 Marc Boucher * mem.c, mem.h: Added mem_calloc(). 2007-08-16 Marc Boucher * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT) for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG and starving other message types. Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API 2007-08-16 Marc Boucher * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf type and flgs (later renamed to flags). Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*. Improved lwip_recvfrom(). TCP push now propagated. 2007-08-16 Marc Boucher * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global provided by etharp. 2007-08-16 Marc Boucher * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h, etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c: Added PPPoE support and various PPP improvements. 2007-07-25 Simon Goldschmidt * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial, making netbuf_copy_partial use this function. 2007-07-25 Simon Goldschmidt * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and other stacks. 2007-07-13 Jared Grubb (integrated by Frédéric Bernon) * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add a link callback in the netif struct, and functions to handle it. Be carefull for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c) if you want to be sure to be compatible with future changes... 2007-06-30 Frédéric Bernon * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions. 2007-06-21 Simon Goldschmidt * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both LWIP_AUTOIP =0 and =1 to remove redundant code. 2007-06-21 Simon Goldschmidt * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option MEM_USE_POOLS to use 4 pools with different sized elements instead of a heap. This both prevents memory fragmentation and gives a higher speed at the cost of more memory consumption. Turned off by default. 2007-06-21 Simon Goldschmidt * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into int to be able to send a bigger buffer than 64K with one time (mainly used from lwip_send). 2007-06-21 Simon Goldschmidt * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too. 2007-06-21 Simon Goldschmidt * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in netconn_write from api_lib.c to api_msg.c to also prevent multiple context- changes on low memory or empty send-buffer. 2007-06-18 Simon Goldschmidt * etharp.c, etharp.h: Changed etharp to use a defined hardware address length of 6 to avoid loading netif->hwaddr_len every time (since this file is only used for ethernet and struct eth_addr already had a defined length of 6). 2007-06-17 Simon Goldschmidt * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets to disable UDP checksum generation on transmit. 2007-06-13 Frédéric Bernon, Simon Goldschmidt * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid pointers or parameters, and let the possibility to redefined it in cc.h. Use this macro to check "conn" parameter in api_msg.c functions. 2007-06-11 Simon Goldschmidt * sockets.c, sockets.h: Added UDP lite support for sockets 2007-06-10 Simon Goldschmidt * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled by default) to switch off UDP-Lite support if not needed (reduces udp.c code size) 2007-06-09 Dominik Spies (integrated by Frédéric Bernon) * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h: AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt (see TODO mark in the source code). 2007-06-09 Simon Goldschmidt * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for etharp_output() to match netif->output so etharp_output() can be used directly as netif->output to save one function call. 2007-06-08 Simon Goldschmidt * netif.h, ethernetif.c, slipif.c, loopif.c: Added define NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables, added initialization of those to ethernetif, slipif and loopif. 2007-05-18 Simon Goldschmidt * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF (defaulting to off for now) that can be set to 0 to send fragmented packets by passing PBUF_REFs down the stack. 2007-05-23 Frédéric Bernon * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP connections, such present in patch #5959. 2007-05-23 Frédéric Bernon * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx code in only one part... 2007-05-18 Simon Goldschmidt * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp elements to overflow. This is achieved by adding some bytes before and after each pool element (increasing their size, of course), filling them with a prominent value and checking them on freeing the element. Set it to 2 to also check every element in every pool each time memp_malloc() or memp_free() is called (slower but more helpful). 2007-05-10 Simon Goldschmidt * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce code size. 2007-05-11 Frédéric Bernon * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c: Include a function pointer instead of a table index in the message to reduce footprint. Disable some part of lwip_send and lwip_sendto if some options are not set (LWIP_TCP, LWIP_UDP, LWIP_RAW). 2007-05-10 Simon Goldschmidt * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus \ extern "C" {' in all header files. Now you can write your application using the lwIP stack in C++ and simply #include the core files. Note I have left out the netif/ppp/*h header files for now, since I don't know which files are included by applications and which are for internal use only. 2007-05-09 Simon Goldschmidt * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for situations where some compilers might inline the copy and save a function call. Also replaced all calls to memcpy() with calls to (S)MEMCPY(). 2007-05-08 Simon Goldschmidt * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc()) to be overriden in case the C-library malloc implementation is not protected against concurrent access. 2007-05-04 Simon Goldschmidt (Atte Kojo) * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending multiple packets to the same host. 2007-05-04 Frédéric Bernon, Jonathan Larmour * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible to corrupt remote addr/port connection state". Reduce problems "not enought memory" with netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function. Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct, these fields are now renamed "addr" & "port". 2007-04-11 Jonathan Larmour * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro by the port in sys_arch.h if desired. 2007-04-06 Frédéric Bernon, Simon Goldschmidt * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp clients, using new functions from netifapi.h. Disable as default (no port change to do). 2007-04-05 Frédéric Bernon * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant. 2007-04-04 Simon Goldschmidt * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x) use this for and architecture-independent form to tell the compiler you intentionally are not using this variable. Can be overriden in cc.h. 2007-03-28 Frédéric Bernon * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded string, point on one of your's ethernetif field, or alloc a string you will free yourself). It will be used by DHCP to register a client hostname, but can also be use when you call snmp_set_sysname. 2007-03-28 Frédéric Bernon * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to initialize a network interface's flag with. It tell this interface is an ethernet device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility Support for IPv4" section 4.6) when interface is "up" with netif_set_up(). 2007-03-26 Frédéric Bernon, Jonathan Larmour * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build time if you only use PPP or SLIP. The default is enable. Note we don't have to call etharp_init in your port's initilization sequence if you use tcpip.c, because this call is done in tcpip_init function. 2007-03-22 Frédéric Bernon * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in your lwipopts.h. More, unused counters are not defined in the stats structs, and not display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined but never used. Fix msg_in.c with the correct #if test for a stat display. 2007-03-21 Kieran Mansley * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com). Provides callback on netif up/down state change. 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c, ip.c, netif.h, tcpip.c, opt.h: New configuration option LWIP_IGMP to enable IGMP processing. Based on only one filter per all network interfaces. Declare a new function in netif to enable to control the MAC filter (to reduce lwIP traffic processing). 2007-03-11 Frédéric Bernon * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this unless you know what you're doing (default are RFC1122 compliant). Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds. 2007-03-08 Frédéric Bernon * tcp.h: Keepalive values can be configured at compile time, but don't change this unless you know what you're doing (default are RFC1122 compliant). 2007-03-08 Frédéric Bernon * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h: Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO on UDP sockets/netconn. 2007-03-08 Simon Goldschmidt * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time. 2007-03-06 Frédéric Bernon * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h: Implement SO_RCVTIMEO on UDP sockets/netconn. 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt) * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated on the stack and remove the API msg type from memp 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) * sockets.h, sockets.c: Move socket initialization to new lwip_socket_init() function. NOTE: this changes the API with ports. Ports will have to be updated to call lwip_socket_init() now. 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) * api_lib.c: Use memcpy in netbuf_copy_partial. ++ Bug fixes: 2008-03-17 Frédéric Bernon, Ed Kerekes * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have some problems to fill the IP header on some targets, use now the ip.h macros to do it). 2008-03-13 Frédéric Bernon * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a TCP connection caused a crash. Note that using (lwip_)recvfrom like this is a bit slow and that using (lwip)getpeername is the good lwip way to do it (so, using recv is faster on tcp sockets). 2008-03-12 Frédéric Bernon, Jonathan Larmour * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's recv_raw() does not consume data", and the ping sample (with LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom returned the IP payload, without the IP header). 2008-03-04 Jonathan Larmour * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors and/or warnings on some systems where mem_size_t and size_t differ. * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc. 2008-03-04 Kieran Mansley (contributions by others) * Numerous small compiler error/warning fixes from contributions to mailing list after 1.3.0 release candidate made. 2008-01-25 Cui hengbin (integrated by Frédéric Bernon) * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures. 2008-01-15 Kieran Mansley * tcp_out.c: BUG20511. Modify persist timer to start when we are prevented from sending by a small send window, not just a zero send window. 2008-01-09 Jonathan Larmour * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid conflict with Linux system headers. 2008-01-06 Jonathan Larmour * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP address entirely on receiving a DHCPNAK, and restarting discovery. 2007-12-21 Simon Goldschmidt * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail is not protected" by using new macros for interlocked access to modify/test netconn->recv_avail. 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev) * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state) 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm) * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling of silly window avoidance and prevent lwIP from shrinking the window) 2007-12-04 Simon Goldschmidt * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last data packet was lost): add assert that all segment lists are empty in tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED state from LAST_ACK in tcp_process 2007-12-02 Simon Goldschmidt * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET If including for system-struct timeval, LWIP_TIMEVAL_PRIVATE now has to be set to 0 in lwipopts.h 2007-12-02 Simon Goldschmidt * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox. This is a fix for thread-safety and allocates all items needed for a netconn when the netconn is created. 2007-11-30 Simon Goldschmidt * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address) 2007-11-27 Simon Goldschmidt * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by letting ip_route only use netifs that are up. 2007-11-27 Simon Goldschmidt * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and sockets block most operations once they have seen a fatal error. 2007-11-27 Simon Goldschmidt * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the netif to send as an argument (to be able to send on netifs that are down). 2007-11-26 Simon Goldschmidt * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs arrive out-of-order 2007-11-21 Simon Goldschmidt * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early Fixed the nagle algorithm; nagle now also works for all raw API applications and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY' 2007-11-12 Frédéric Bernon * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most of the netconn_peer and netconn_addr processing is done inside tcpip_thread context in do_getaddr. 2007-11-10 Simon Goldschmidt * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can happen any time). Now the packet simply isn't enqueued when out of memory. 2007-11-01 Simon Goldschmidt * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or TCP_MSS if that is smaller) as long as no MSS option is received from the remote host. 2007-11-01 Simon Goldschmidt * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN) is now based on TCP_MSS instead of pcb->mss (on passive open now effectively sending our configured TCP_MSS instead of the one received). 2007-11-01 Simon Goldschmidt * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was calculated based on the configured TCP_MSS, not on the MSS option received with SYN+ACK. 2007-10-09 Simon Goldschmidt * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too short and also was generated wrong if checksum coverage != tot_len; receive: checksum was calculated wrong if checksum coverage != tot_len 2007-10-08 Simon Goldschmidt * mem.c: lfree was not updated in mem_realloc! 2007-10-07 Frédéric Bernon * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT: this change cause an API breakage for netconn_addr, since a parameter type change. Any compiler should cause an error without any changes in yours netconn_peer calls (so, it can't be a "silent change"). It also reduce a little bit the footprint for socket layer (lwip_getpeername & lwip_getsockname use now a common lwip_getaddrname function since netconn_peer & netconn_addr have the same parameters). 2007-09-20 Simon Goldschmidt * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state) by checking tcp_tw_pcbs also 2007-09-19 Simon Goldschmidt * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies) 2007-09-15 Mike Kleshov * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used) 2007-09-06 Frédéric Bernon * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h" if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h. 2007-08-30 Frédéric Bernon * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces, and fix some coding style. 2007-08-28 Frédéric Bernon * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any kind of packets. These packets are considered like Ethernet packets (payload pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets are considered like IP packets (payload pointing to iphdr). 2007-08-27 Frédéric Bernon * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT). 2007-08-24 Kieran Mansley * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy compiler (Paradigm C++) 2007-08-09 Frédéric Bernon, Bill Florac * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement. Introduce IGMP_STATS to centralize statistics management. 2007-08-09 Frédéric Bernon, Bill Florac * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast packet on a udp pcb binded on an netif's IP address, and not on "any". 2007-08-09 Frédéric Bernon, Bill Florac * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement. This is mainly on using lookup/lookfor, and some coding styles... 2007-07-26 Frédéric Bernon (and "thedoctor") * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages. 2007-07-25 Simon Goldschmidt * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if tcp_output fails in tcp_close, the code in do_close_internal gets simpler (tcp_output is called again later from tcp timers). 2007-07-25 Simon Goldschmidt * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old copy_from_pbuf, which illegally modified the given pbuf. 2007-07-25 Simon Goldschmidt * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs: changed snd_queuelen++ to snd_queuelen += pbuf_clen(p). 2007-07-24 Simon Goldschmidt * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the correct state (must be CLOSED). 2007-07-13 Thomas Taranowski (commited by Jared Grubb) * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed allocation. It now returns NULL. 2007-07-13 Frédéric Bernon * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in all error cases. 2007-07-13 Frédéric Bernon * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed, because current code doesn't follow rawapi.txt documentation. 2007-07-13 Kieran Mansley * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in out of sequence processing of received packets 2007-07-03 Simon Goldschmidt * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an assumption is made that this pbuf is in one piece (i.e. not chained). These assumptions clash with the possibility of converting to fully pool-based pbuf implementations, where PBUF_RAM pbufs might be chained. 2007-07-03 Simon Goldschmidt * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems when closing tcp netconns: removed conn->sem, less context switches when closing, both netconn_close and netconn_delete should safely close tcp connections. 2007-07-02 Simon Goldschmidt * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c, tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off) to cache ARP table indices with each pcb instead of single-entry cache for the complete stack. 2007-07-02 Simon Goldschmidt * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent warnings when assigning to smaller types. 2007-06-28 Simon Goldschmidt * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing. 2007-06-28 Simon Goldschmidt * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if a segment contained chained pbufs) 2007-06-28 Frédéric Bernon * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute a "pseudo-random" value based on netif's MAC and some autoip fields. It's always possible to define this macro in your own lwipopts.h to always use C library's rand(). Note that autoip_create_rand_addr doesn't use this macro. 2007-06-28 Frédéric Bernon * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications in api_lib/api_msg (use pointers and not type with table, etc...) 2007-06-26 Simon Goldschmidt * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines. 2007-06-25 Simon Goldschmidt * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload for udp packets with no matching pcb. 2007-06-25 Simon Goldschmidt * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match could get udp input packets if the remote side matched. 2007-06-13 Simon Goldschmidt * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0. 2007-06-13 Simon Goldschmidt * api_msg.c: pcb_new sets conn->err if protocol is not implemented -> netconn_new_..() does not allocate a new connection for unsupported protocols. 2007-06-13 Frédéric Bernon, Simon Goldschmidt * api_lib.c: change return expression in netconn_addr and netconn_peer, because conn->err was reset to ERR_OK without any reasons (and error was lost)... 2007-06-13 Frédéric Bernon, Matthias Weisser * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid some macro names collision with some OS macros. 2007-06-11 Simon Goldschmidt * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0, create checksum over the complete packet. On RX, if it's < 8 (and not 0), discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both UDP & UDP Lite. 2007-06-11 Srinivas Gollakota & Oleg Tyshev * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags" where TCP flags wasn't initialized in tcp_keepalive. 2007-06-03 Simon Goldschmidt * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function registered, p->payload was modified without modifying p->len if sending icmp_dest_unreach() (had no negative effect but was definitively wrong). 2007-06-03 Simon Goldschmidt * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp re-used the input pbuf even if that didn't have enough space to include the link headers. Now the space is tested and a new pbuf is allocated for the echo response packet if the echo request pbuf isn't big enough. 2007-06-01 Simon Goldschmidt * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread. 2007-05-23 Frédéric Bernon * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only allocated by do_listen if success) and netconn_accept errors handling. In most of api_lib functions, we replace some errors checkings like "if (conn==NULL)" by ASSERT, except for netconn_delete. 2007-05-23 Frédéric Bernon * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return an error code if it's impossible to fetch a pbuf on a TCP connection (and not directly close the recvmbox). 2007-05-22 Simon Goldschmidt * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of bound but unconnected (and non-listening) tcp_pcbs. 2007-05-22 Frédéric Bernon * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features like "sys_timeout" in their application threads. 2007-05-22 Frédéric Bernon * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see which parameters are used by which do_xxx function, and to avoid "misusing" parameters (patch #5938). 2007-05-22 Simon Goldschmidt * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938: changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto is only 8 bits wide. This affects the api, as there, the protocol was u16_t, too. 2007-05-18 Simon Goldschmidt * memp.c: addition to patch #5913: smaller pointer was returned but memp_memory was the same size -> did not save memory. 2007-05-16 Simon Goldschmidt * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns != ERR_OK. 2007-05-16 Simon Goldschmidt * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same as the one of the netif used for sending to prevent sending from old addresses after a netif address gets changed (partly fixes bug #3168). 2007-05-16 Frédéric Bernon * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in tcpip_init) because we have to be sure that network interfaces are already added (mac filter is updated only in igmp_init for the moment). 2007-05-16 Simon Goldschmidt * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls into sys_arch_sem_wait calls to prevent timers from running while waiting for the heap. This fixes bug #19167. 2007-05-13 Simon Goldschmidt * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from tcp.h to sockets.h. 2007-05-07 Simon Goldschmidt * mem.c: Another attempt to fix bug #17922. 2007-05-04 Simon Goldschmidt * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy() implementation so that it can be reused (don't allocate the target pbuf inside pbuf_copy()). 2007-05-04 Simon Goldschmidt * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem to save a little RAM (next pointer of memp is not used while not in pool). 2007-05-03 "maq" * sockets.c: Fix ioctl FIONREAD when some data remains from last recv. (patch #3574). 2007-04-23 Simon Goldschmidt * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results in NULL reference for incoming TCP packets". Loopif has to be configured (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input() (multithreading environments, e.g. netif->input() = tcpip_input()) or putting packets on a list that is fed to the stack by calling loopif_poll() (single-thread / NO_SYS / polling environment where e.g. netif->input() = ip_input). 2007-04-17 Jonathan Larmour * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold the difference between two u16_t's. * sockets.h: FD_SETSIZE needs to match number of sockets, which is MEMP_NUM_NETCONN in sockets.c right now. 2007-04-12 Jonathan Larmour * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580). 2007-04-12 Kieran Mansley * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission timer is reset to fix bug#19434, with help from Oleg Tyshev. 2007-04-11 Simon Goldschmidt * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than previously thought need to be copied (everything but PBUF_ROM!). Cleaned up pbuf.c: removed functions no needed any more (by etharp). 2007-04-11 Kieran Mansley * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix "Constant is long" warnings with 16bit compilers. Contributed by avatar@mmlab.cse.yzu.edu.tw 2007-04-05 Frédéric Bernon, Jonathan Larmour * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on the mailbox is active". Now, the post is only done during a connect, and do_send, do_write and do_join_leave_group don't do anything if a previous error was signaled. 2007-04-03 Frédéric Bernon * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output packets. See patch #5834. 2007-03-30 Frédéric Bernon * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add missing pcb allocations checking (in do_bind, and for each raw_new). Fix style. 2007-03-30 Frédéric Bernon * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with others environment defines (these were too "generic"). 2007-03-28 Frédéric Bernon * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call result and can cause a crash. lwip_send now check netbuf_ref result. 2007-03-28 Simon Goldschmidt * sockets.c Remove "#include " from sockets.c to avoid multiple definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is defined. This is the way it should have been already (looking at doc/sys_arch.txt) 2007-03-28 Kieran Mansley * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS + IP and TCP headers *and* physical link headers 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov) * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause to send some garbage. It is not a definitive solution, but the patch does solve the problem for most cases. 2007-03-22 Frédéric Bernon * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used). 2007-03-22 Frédéric Bernon * api_lib.c: somes resources couldn't be freed if there was errors during netconn_new_with_proto_and_callback. 2007-03-22 Frédéric Bernon * ethernetif.c: update netif->input calls to check return value. In older ports, it's a good idea to upgrade them, even if before, there could be another problem (access to an uninitialized mailbox). 2007-03-21 Simon Goldschmidt * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed by casting to unsigned). 2007-03-21 Frédéric Bernon * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call. Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a faster and more reliable communication between api_lib and tcpip. 2007-03-21 Frédéric Bernon * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0. 2007-03-21 Frédéric Bernon * api_msg.c, igmp.c, igmp.h: Fix C++ style comments 2007-03-21 Kieran Mansley * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS + IP and TCP headers 2007-03-21 Kieran Mansley * Fix all uses of pbuf_header to check the return value. In some cases just assert if it fails as I'm not sure how to fix them, but this is no worse than before when they would carry on regardless of the failure. 2007-03-21 Kieran Mansley * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and comment out missing header include in icmp.c 2007-03-20 Frédéric Bernon * memp.h, stats.c: Fix stats_display function where memp_names table wasn't synchronized with memp.h. 2007-03-20 Frédéric Bernon * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input, tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with network interfaces. Also fix a compiler warning. 2007-03-20 Kieran Mansley * udp.c: Only try and use pbuf_header() to make space for headers if not a ROM or REF pbuf. 2007-03-19 Frédéric Bernon * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg() and api_msg_post(). 2007-03-19 Frédéric Bernon * Remove unimplemented "memp_realloc" function from memp.h. 2007-03-11 Simon Goldschmidt * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused memory corruption. 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov) * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251 (missing `const' qualifier in socket functions), to get more compatible to standard POSIX sockets. 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov) * sockets.c: Add asserts inside bind, connect and sendto to check input parameters. Remove excessive set_errno() calls after get_socket(), because errno is set inside of get_socket(). Move last sock_set_errno() inside lwip_close. 2007-03-09 Simon Goldschmidt * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory was allocated too small. 2007-03-06 Simon Goldschmidt * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect the stack from concurrent access. 2007-03-06 Frédéric Bernon, Dmitry Potapov * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input(). 2007-03-06 Simon Goldschmidt * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files if IP_FRAG == 0 and IP_REASSEMBLY == 0 2007-03-06 Frédéric Bernon, Simon Goldschmidt * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput. Allow to do ARP processing for incoming packets inside tcpip_thread (protecting ARP layer against concurrent access). You can also disable old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0. Older ports have to use tcpip_ethinput. 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov) * err.h, err.c: fixed compiler warning "initialization dircards qualifiers from pointer target type" 2007-03-05 Frédéric Bernon * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES, ETHARP_TRUST_IP_MAC, review SO_REUSE) 2007-03-04 Frédéric Bernon * api_msg.c: Remove some compiler warnings : parameter "pcb" was never referenced. 2007-03-04 Frédéric Bernon * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from Dmitry Potapov). The api_msg struct stay on the stack (not moved to netconn struct). 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov) * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available) Also fixed cast warning in pbuf_alloc() 2007-03-04 Simon Goldschmidt * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt existing pbuf chain when enqueuing multiple pbufs to a pending ARP request 2007-03-03 Frédéric Bernon * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;" It is static, and never used in udp.c except udp_init(). 2007-03-02 Simon Goldschmidt * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from tcpip_thread() to tcpip_init(). This way, raw API connections can be initialized before tcpip_thread is running (e.g. before OS is started) 2007-03-02 Frédéric Bernon * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call interval. 2007-02-28 Kieran Mansley * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved outside the region of the pbuf by pbuf_header() 2007-02-28 Kieran Mansley * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero when supplied timeout is also non-zero (STABLE-1.2.0) 2006-12-05 Leon Woestenberg * CHANGELOG: Mention STABLE-1.2.0 release. ++ New features: 2006-12-01 Christiaan Simons * mem.h, opt.h: Added MEM_LIBC_MALLOC option. Note this is a workaround. Currently I have no other options left. 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour) * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define to include/lwip/opt.h. * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL. Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h. * opt.h: Add above new options. 2006-08-18 Christiaan Simons * tcp_{in,out}.c: added SNMP counters. * ipv4/ip.c: added SNMP counters. * ipv4/ip_frag.c: added SNMP counters. 2006-08-08 Christiaan Simons * etharp.{c,h}: added etharp_find_addr() to read (stable) ethernet/IP address pair from ARP table 2006-07-14 Christiaan Simons * mib_structs.c: added * include/lwip/snmp_structs.h: added * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct 2006-07-06 Christiaan Simons * snmp/asn1_{enc,dec}.c added * snmp/mib2.c added * snmp/msg_{in,out}.c added * include/lwip/snmp_asn1.h added * include/lwip/snmp_msg.h added * doc/snmp_agent.txt added 2006-03-29 Christiaan Simons * inet.c, inet.h: Added platform byteswap support. Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros. ++ Bug fixes: 2006-11-30 Christiaan Simons * dhcp.c: Fixed false triggers of request_timeout. 2006-11-28 Christiaan Simons * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags. 2006-10-11 Christiaan Simons * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h: Partially accepted patch #5449 for ANSI C compatibility / build fixes. * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol identifier from 170 to 136 (bug #17574). 2006-10-10 Christiaan Simons * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice. 2006-08-17 Christiaan Simons * udp.c: Fixed bug #17200, added check for broadcast destinations for PCBs bound to a unicast address. 2006-08-07 Christiaan Simons * api_msg.c: Flushing TCP output in do_close() (bug #15926). 2006-06-27 Christiaan Simons * api_msg.c: Applied patch for cold case (bug #11135). In accept_function() ensure newconn->callback is always initialized. 2006-06-15 Christiaan Simons * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748), facilitate printing of mem_size_t and u16_t statistics. 2006-06-14 Christiaan Simons * api_msg.c: Applied patch #5146 to handle allocation failures in accept() by Kevin Lawson. 2006-05-26 Christiaan Simons * api_lib.c: Removed conn->sem creation and destruction from netconn_write() and added sys_sem_new to netconn_new_*. (STABLE-1_1_1) 2006-03-03 Christiaan Simons * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap access and added pbuf_alloc() return value checks. 2006-01-01 Leon Woestenberg * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is now handled by the checksum routine properly. 2006-02-27 Leon Woestenberg * pbuf.c: Fix alignment; pbuf_init() would not work unless pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.) 2005-12-20 Leon Woestenberg * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch submitted by Mitrani Hiroshi. 2005-12-15 Christiaan Simons * inet.c: Disabled the added summing routine to preserve code space. 2005-12-14 Leon Woestenberg * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson. Added Curt McDowell's optimized checksumming routine for future inclusion. Need to create test case for unaliged, aligned, odd, even length combination of cases on various endianess machines. 2005-12-09 Christiaan Simons * inet.c: Rewrote standard checksum routine in proper portable C. 2005-11-25 Christiaan Simons * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only. * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t, u32_t, s32_t typedefs. This solves most debug word-length assumes. 2005-07-17 Leon Woestenberg * inet.c: Fixed unaligned 16-bit access in the standard checksum routine by Peter Jolasson. * slipif.c: Fixed implementation assumption of single-pbuf datagrams. 2005-02-04 Leon Woestenberg * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch. * tcp_{out|in}.c: Applied patch fixing unaligned access. 2005-01-04 Leon Woestenberg * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement. 2005-01-03 Leon Woestenberg * udp.c: UDP pcb->recv() was called even when it was NULL. (STABLE-1_1_0) 2004-12-28 Leon Woestenberg * etharp.*: Disabled multiple packets on the ARP queue. This clashes with TCP queueing. 2004-11-28 Leon Woestenberg * etharp.*: Fixed race condition from ARP request to ARP timeout. Halved the ARP period, doubled the period counts. ETHARP_MAX_PENDING now should be at least 2. This prevents the counter from reaching 0 right away (which would allow too little time for ARP responses to be received). 2004-11-25 Leon Woestenberg * dhcp.c: Decline messages were not multicast but unicast. * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD. Do not try hard to insert arbitrary packet's source address, etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD. etharp_query() now always DOES call ETHARP_TRY_HARD so that users querying an address will see it appear in the cache (DHCP could suffer from this when a server invalidly gave an in-use address.) * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are comparing network addresses (identifiers), not the network masks themselves. * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given IP address actually belongs to the network of the given interface. 2004-11-24 Kieran Mansley * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state. (STABLE-1_1_0-RC1) 2004-10-16 Kieran Mansley * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately, even if one is already pending, if the rcv_wnd is above a threshold (currently TCP_WND/2). This avoids waiting for a timer to expire to send a delayed ACK in order to open the window if the stack is only receiving data. 2004-09-12 Kieran Mansley * tcp*.*: Retransmit time-out handling improvement by Sam Jansen. 2004-08-20 Tony Mountifield * etharp.c: Make sure the first pbuf queued on an ARP entry is properly ref counted. 2004-07-27 Tony Mountifield * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler warnings about comparison. * pbuf.c: Stopped compiler complaining of empty if statement when LWIP_DEBUGF() empty. Closed an unclosed comment. * tcp.c: Stopped compiler complaining of empty if statement when LWIP_DEBUGF() empty. * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons(). * inet.c: Added a couple of casts to quiet the compiler. No need to test isascii(c) before isdigit(c) or isxdigit(c). 2004-07-22 Tony Mountifield * inet.c: Made data types consistent in inet_ntoa(). Added casts for return values of checksum routines, to pacify compiler. * ip_frag.c, tcp_out.c, sockets.c, pbuf.c Small corrections to some debugging statements, to pacify compiler. 2004-07-21 Tony Mountifield * etharp.c: Removed spurious semicolon and added missing end-of-comment. * ethernetif.c Updated low_level_output() to match prototype for netif->linkoutput and changed low_level_input() similarly for consistency. * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype of raw_recv() in raw.h and so avoid compiler error. * sockets.c: Added trivial (int) cast to keep compiler happier. * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros. (STABLE-1_0_0) ++ Changes: 2004-07-05 Leon Woestenberg * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure your cc.h file defines this either 1 or 0. If non-defined, defaults to 1. * .c: Added and includes where used. * etharp.c: Made some array indices unsigned. 2004-06-27 Leon Woestenberg * netif.*: Added netif_set_up()/down(). * dhcp.c: Changes to restart program flow. 2004-05-07 Leon Woestenberg * etharp.c: In find_entry(), instead of a list traversal per candidate, do a single-pass lookup for different candidates. Should exploit locality. 2004-04-29 Leon Woestenberg * tcp*.c: Cleaned up source comment documentation for Doxygen processing. * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC. * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option. ++ Bug fixes: 2004-04-27 Leon Woestenberg * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution suggested by Timmy Brolin. Fix for 32-bit processors that cannot access non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix is to prefix the 14-bit Ethernet headers with two padding bytes. 2004-04-23 Leon Woestenberg * ip_addr.c: Fix in the ip_addr_isbroadcast() check. * etharp.c: Fixed the case where the packet that initiates the ARP request is not queued, and gets lost. Fixed the case where the packets destination address is already known; we now always queue the packet and perform an ARP request. (STABLE-0_7_0) ++ Bug fixes: * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition. * Fixed TCP bug in dequeueing of FIN from out of order segment queue. * Fixed two possible NULL references in rare cases. (STABLE-0_6_6) ++ Bug fixes: * Fixed DHCP which did not include the IP address in DECLINE messages. ++ Changes: * etharp.c has been hauled over a bit. (STABLE-0_6_5) ++ Bug fixes: * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic. * Packets sent from ARP queue had invalid source hardware address. ++ Changes: * Pass-by ARP requests do now update the cache. ++ New features: * No longer dependent on ctype.h. * New socket options. * Raw IP pcb support. (STABLE-0_6_4) ++ Bug fixes: * Some debug formatters and casts fixed. * Numereous fixes in PPP. ++ Changes: * DEBUGF now is LWIP_DEBUGF * pbuf_dechain() has been re-enabled. * Mentioned the changed use of CVS branches in README. (STABLE-0_6_3) ++ Bug fixes: * Fixed pool pbuf memory leak in pbuf_alloc(). Occured if not enough PBUF_POOL pbufs for a packet pbuf chain. Reported by Savin Zlobec. * PBUF_POOL chains had their tot_len field not set for non-first pbufs. Fixed in pbuf_alloc(). ++ New features: * Added PPP stack contributed by Marc Boucher ++ Changes: * Now drops short packets for ICMP/UDP/TCP protocols. More robust. * ARP queueuing now queues the latest packet instead of the first. This is the RFC recommended behaviour, but can be overridden in lwipopts.h. (0.6.2) ++ Bugfixes: * TCP has been fixed to deal with the new use of the pbuf->ref counter. * DHCP dhcp_inform() crash bug fixed. ++ Changes: * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed pbuf_refresh(). This has sped up pbuf pool operations considerably. Implemented by David Haas. (0.6.1) ++ New features: * The packet buffer implementation has been enhanced to support zero-copy and copy-on-demand for packet buffers which have their payloads in application-managed memory. Implemented by David Haas. Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy if an outgoing packet can be directly sent on the link, or perform a copy-on-demand when necessary. The application can safely assume the packet is sent, and the RAM is available to the application directly after calling udp_send() or similar function. ++ Bugfixes: * ARP_QUEUEING should now correctly work for all cases, including PBUF_REF. Implemented by Leon Woestenberg. ++ Changes: * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer to a '0.0.0.0' IP address. * The packet buffer implementation is changed. The pbuf->ref counter meaning has changed, and several pbuf functions have been adapted accordingly. * netif drivers have to be changed to set the hardware address length field that must be initialized correctly by the driver (hint: 6 for Ethernet MAC). See the contrib/ports/c16x cs8900 driver as a driver example. * netif's have a dhcp field that must be initialized to NULL by the driver. See the contrib/ports/c16x cs8900 driver as a driver example. (0.5.x) This file has been unmaintained up to 0.6.1. All changes are logged in CVS but have not been explained here. (0.5.3) Changes since version 0.5.2 ++ Bugfixes: * memp_malloc(MEMP_API_MSG) could fail with multiple application threads because it wasn't protected by semaphores. ++ Other changes: * struct ip_addr now packed. * The name of the time variable in arp.c has been changed to ctime to avoid conflicts with the time() function. (0.5.2) Changes since version 0.5.1 ++ New features: * A new TCP function, tcp_tmr(), now handles both TCP timers. ++ Bugfixes: * A bug in tcp_parseopt() could cause the stack to hang because of a malformed TCP option. * The address of new connections in the accept() function in the BSD socket library was not handled correctly. * pbuf_dechain() did not update the ->tot_len field of the tail. * Aborted TCP connections were not handled correctly in all situations. ++ Other changes: * All protocol header structs are now packed. * The ->len field in the tcp_seg structure now counts the actual amount of data, and does not add one for SYN and FIN segments. (0.5.1) Changes since version 0.5.0 ++ New features: * Possible to run as a user process under Linux. * Preliminary support for cross platform packed structs. * ARP timer now implemented. ++ Bugfixes: * TCP output queue length was badly initialized when opening connections. * TCP delayed ACKs were not sent correctly. * Explicit initialization of BSS segment variables. * read() in BSD socket library could drop data. * Problems with memory alignment. * Situations when all TCP buffers were used could lead to starvation. * TCP MSS option wasn't parsed correctly. * Problems with UDP checksum calculation. * IP multicast address tests had endianess problems. * ARP requests had wrong destination hardware address. ++ Other changes: * struct eth_addr changed from u16_t[3] array to u8_t[6]. * A ->linkoutput() member was added to struct netif. * TCP and UDP ->dest_* struct members where changed to ->remote_*. * ntoh* macros are now null definitions for big endian CPUs. (0.5.0) Changes since version 0.4.2 ++ New features: * Redesigned operating system emulation layer to make porting easier. * Better control over TCP output buffers. * Documenation added. ++ Bugfixes: * Locking issues in buffer management. * Bugfixes in the sequential API. * IP forwarding could cause memory leakage. This has been fixed. ++ Other changes: * Directory structure somewhat changed; the core/ tree has been collapsed. (0.4.2) Changes since version 0.4.1 ++ New features: * Experimental ARP implementation added. * Skeleton Ethernet driver added. * Experimental BSD socket API library added. ++ Bugfixes: * In very intense situations, memory leakage could occur. This has been fixed. ++ Other changes: * Variables named "data" and "code" have been renamed in order to avoid name conflicts in certain compilers. * Variable++ have in appliciable cases been translated to ++variable since some compilers generate better code in the latter case. (0.4.1) Changes since version 0.4 ++ New features: * TCP: Connection attempts time out earlier than data transmissions. Nagle algorithm implemented. Push flag set on the last segment in a burst. * UDP: experimental support for UDP-Lite extensions. ++ Bugfixes: * TCP: out of order segments were in some cases handled incorrectly, and this has now been fixed. Delayed acknowledgements was broken in 0.4, has now been fixed. Binding to an address that is in use now results in an error. Reset connections sometimes hung an application; this has been fixed. * Checksum calculation sometimes failed for chained pbufs with odd lengths. This has been fixed. * API: a lot of bug fixes in the API. The UDP API has been improved and tested. Error reporting and handling has been improved. Logical flaws and race conditions for incoming TCP connections has been found and removed. * Memory manager: alignment issues. Reallocating memory sometimes failed, this has been fixed. * Generic library: bcopy was flawed and has been fixed. ++ Other changes: * API: all datatypes has been changed from generic ones such as ints, to specified ones such as u16_t. Functions that return errors now have the correct type (err_t). * General: A lot of code cleaned up and debugging code removed. Many portability issues have been fixed. * The license was changed; the advertising clause was removed. * C64 port added. * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri Kosunen, Mikael Caleres, and Frits Wilmink for reporting and fixing bugs! (0.4) Changes since version 0.3.1 * Memory management has been radically changed; instead of allocating memory from a shared heap, memory for objects that are rapidly allocated and deallocated is now kept in pools. Allocation and deallocation from those memory pools is very fast. The shared heap is still present but is used less frequently. * The memory, memory pool, and packet buffer subsystems now support 4-, 2-, or 1-byte alignment. * "Out of memory" situations are handled in a more robust way. * Stack usage has been reduced. * Easier configuration of lwIP parameters such as memory usage, TTLs, statistics gathering, etc. All configuration parameters are now kept in a single header file "lwipopts.h". * The directory structure has been changed slightly so that all architecture specific files are kept under the src/arch hierarchy. * Error propagation has been improved, both in the protocol modules and in the API. * The code for the RTXC architecture has been implemented, tested and put to use. * Bugs have been found and corrected in the TCP, UDP, IP, API, and the Internet checksum modules. * Bugs related to porting between a 32-bit and a 16-bit architecture have been found and corrected. * The license has been changed slightly to conform more with the original BSD license, including the advertisement clause. (0.3.1) Changes since version 0.3 * Fix of a fatal bug in the buffer management. Pbufs with allocated RAM never returned the RAM when the pbuf was deallocated. * TCP congestion control, window updates and retransmissions did not work correctly. This has now been fixed. * Bugfixes in the API. (0.3) Changes since version 0.2 * New and improved directory structure. All include files are now kept in a dedicated include/ directory. * The API now has proper error handling. A new function, netconn_err(), now returns an error code for the connection in case of errors. * Improvements in the memory management subsystem. The system now keeps a pointer to the lowest free memory block. A new function, mem_malloc2() tries to allocate memory once, and if it fails tries to free some memory and retry the allocation. * Much testing has been done with limited memory configurations. lwIP now does a better job when overloaded. * Some bugfixes and improvements to the buffer (pbuf) subsystem. * Many bugfixes in the TCP code: - Fixed a bug in tcp_close(). - The TCP receive window was incorrectly closed when out of sequence segments was received. This has been fixed. - Connections are now timed-out of the FIN-WAIT-2 state. - The initial congestion window could in some cases be too large. This has been fixed. - The retransmission queue could in some cases be screwed up. This has been fixed. - TCP RST flag now handled correctly. - Out of sequence data was in some cases never delivered to the application. This has been fixed. - Retransmitted segments now contain the correct acknowledgment number and advertised window. - TCP retransmission timeout backoffs are not correctly computed (ala BSD). After a number of retransmissions, TCP now gives up the connection. * TCP connections now are kept on three lists, one for active connections, one for listening connections, and one for connections that are in TIME-WAIT. This greatly speeds up the fast timeout processing for sending delayed ACKs. * TCP now provides proper feedback to the application when a connection has been successfully set up. * More comments have been added to the code. The code has also been somewhat cleaned up. (0.2) Initial public release.