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