changelog

基于STM32F107的UDP服务器程序

  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, Fr閐閞ic 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 Fr閐閞ic 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 <[e-mail]>

  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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic Bernon, Marc Chaland
  * ip.c: Integrate patch #6369" ip_input : checking before realloc".
  
  2008-01-12 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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 Fr閐閞ic 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, Fr閐閞ic 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 Fr閐閞ic 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