changelog

lwip-1.4.0

HISTORY

(CVS HEAD)

  * [Enter new changes just after this line - do not remove this line]

 ++ New features:


 ++ Bugfixes:




(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