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This file lists major changes between release versions that require |
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ports or applications to be changed. Use it to update a port or an |
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application written for an older version of lwIP to correctly work |
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with newer versions. |
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|
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|
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(CVS HEAD) |
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|
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* [Enter new changes just after this line - do not remove this line] |
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|
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++ Application changes: |
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|
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* Replaced struct ip_addr by typedef ip_addr_t (struct ip_addr is kept for |
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compatibility to old applications, but will be removed in the future). |
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|
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* Renamed mem_realloc() to mem_trim() to prevent confusion with realloc() |
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|
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+++ Raw API: |
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* Changed the semantics of tcp_close() (since it was rather a |
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shutdown before): Now the application does *NOT* get any calls to the recv |
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callback (aside from NULL/closed) after calling tcp_close() |
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|
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* When calling tcp_abort() from a raw API TCP callback function, |
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make sure you return ERR_ABRT to prevent accessing unallocated memory. |
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(ERR_ABRT now means the applicaiton has called tcp_abort!) |
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|
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+++ Netconn API: |
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* Changed netconn_receive() and netconn_accept() to return |
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err_t, not a pointer to new data/netconn. |
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|
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+++ Socket API: |
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* LWIP_SO_RCVTIMEO: when accept() or recv() time out, they |
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now set errno to EWOULDBLOCK/EAGAIN, not ETIMEDOUT. |
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|
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* Added a minimal version of posix fctl() to have a |
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standardised way to set O_NONBLOCK for nonblocking sockets. |
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|
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+++ all APIs: |
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* correctly implemented SO(F)_REUSEADDR |
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|
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++ Port changes |
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|
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+++ new files: |
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|
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* Added 4 new files: def.c, timers.c, timers.h, tcp_impl.h: |
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|
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* Moved stack-internal parts of tcp.h to tcp_impl.h, tcp.h now only contains |
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the actual application programmer's API |
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|
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* Separated timer implementation from sys.h/.c, moved to timers.h/.c; |
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Added timer implementation for NO_SYS==1, set NO_SYS_NO_TIMERS==1 if you |
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still want to use your own timer implementation for NO_SYS==0 (as before). |
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|
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+++ sys layer: |
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|
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* Converted mbox- and semaphore-functions to take pointers to sys_mbox_t/ |
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sys_sem_t; |
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|
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* Converted sys_mbox_new/sys_sem_new to take pointers and return err_t; |
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|
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* Added Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX to let sys.h use |
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binary semaphores instead of mutexes - as before) |
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|
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+++ new options: |
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|
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* Don't waste memory when chaining segments, added option TCP_OVERSIZE to |
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prevent creating many small pbufs when calling tcp_write with many small |
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blocks of data. Instead, pbufs are allocated larger than needed and the |
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space is used for later calls to tcp_write. |
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|
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* Added LWIP_NETIF_TX_SINGLE_PBUF to always copy to try to create single pbufs |
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in tcp_write/udp_send. |
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|
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* Added an additional option LWIP_ETHERNET to support ethernet without ARP |
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(necessary for pure PPPoE) |
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|
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* Add MEMP_SEPARATE_POOLS to place memory pools in separate arrays. This may |
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be used to place these pools into user-defined memory by using external |
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declaration. |
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|
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* Added TCP_SNDQUEUELOWAT corresponding to TCP_SNDLOWAT |
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|
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+++ new pools: |
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|
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* Netdb uses a memp pool for allocating memory when getaddrinfo() is called, |
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so MEMP_NUM_NETDB has to be set accordingly. |
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|
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* DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses a memp pool instead of the heap, so |
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MEMP_NUM_LOCALHOSTLIST has to be set accordingly. |
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|
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* Snmp-agent uses a memp pools instead of the heap, so MEMP_NUM_SNMP_* have |
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to be set accordingly. |
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|
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* PPPoE uses a MEMP pool instead of the heap, so MEMP_NUM_PPPOE_INTERFACES |
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has to be set accordingly |
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|
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* Integrated loopif into netif.c - loopif does not have to be created by the |
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port any more, just define LWIP_HAVE_LOOPIF to 1. |
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|
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* Added define LWIP_RAND() for lwip-wide randomization (needs to be defined |
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in cc.h, e.g. used by igmp) |
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|
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* Added printf-formatter X8_F to printf u8_t as hex |
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|
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* The heap now may be moved to user-defined memory by defining |
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LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address |
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|
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* added autoip_set_struct() and dhcp_set_struct() to let autoip and dhcp work |
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with user-allocated structs instead of calling mem_malloc |
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|
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* Added const char* name to mem- and memp-stats for easier debugging. |
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|
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* Calculate the TCP/UDP checksum while copying to only fetch data once: |
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Define LWIP_CHKSUM_COPY to a memcpy-like function that returns the checksum |
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|
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* Added SO_REUSE_RXTOALL to pass received UDP broadcast/multicast packets to |
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more than one pcb. |
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|
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* Changed the semantics of ARP_QUEUEING==0: ARP_QUEUEING now cannot be turned |
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off any more, if this is set to 0, only one packet (the most recent one) is |
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queued (like demanded by RFC 1122). |
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|
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|
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++ Major bugfixes/improvements |
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|
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* Implemented tcp_shutdown() to only shut down one end of a connection |
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* Implemented shutdown() at socket- and netconn-level |
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* Added errorset support to select() + improved select speed overhead |
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* Merged pppd to v2.3.11 (including some backported bugfixes from 2.4.x) |
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* Added timer implementation for NO_SYS==1 (may be disabled with NO_SYS_NO_TIMERS==1 |
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* Use macros defined in ip_addr.h to work with IP addresses |
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* Implemented many nonblocking socket/netconn functions |
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* Fixed ARP input processing: only add a new entry if a request was directed as us |
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* mem_realloc() to mem_trim() to prevent confusion with realloc() |
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* Some improvements for AutoIP (don't route/forward link-local addresses, don't break |
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existing connections when assigning a routable address) |
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* Correctly handle remote side overrunning our rcv_wnd in ooseq case |
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* Removed packing from ip_addr_t, the packed version is now only used in protocol headers |
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* Corrected PBUF_POOL_BUFSIZE for ports where ETH_PAD_SIZE > 0 |
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* Added support for static ARP table entries |
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|
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(STABLE-1.3.2) |
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|
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* initial version of this file |