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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/UPGRADING')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/UPGRADING | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/UPGRADING b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/UPGRADING new file mode 100644 index 0000000..3a984c9 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/UPGRADING @@ -0,0 +1,235 @@ +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. + + +(git master) + + * [Enter new changes just after this line - do not remove this line] + +(2.0.1) + + ++ Application changes: + + * UDP does NOT receive multicast traffic from ALL netifs on an UDP PCB bound to a specific + netif any more. Users need to bind to IP_ADDR_ANY to receive multicast traffic and compare + ip_current_netif() to the desired netif for every packet. + See bug #49662 for an explanation. + +(2.0.0) + + ++ Application changes: + + * Changed netif "up" flag handling to be an administrative flag (as opposed to the previous meaning of + "ip4-address-valid", a netif will now not be used for transmission if not up) -> even a DHCP netif + has to be set "up" before starting the DHCP client + * Added IPv6 support (dual-stack or IPv4/IPv6 only) + * Changed ip_addr_t to be a union in dual-stack mode (use ip4_addr_t where referring to IPv4 only). + * Major rewrite of SNMP (added MIB parser that creates code stubs for custom MIBs); + supports SNMPv2c (experimental v3 support) + * Moved some core applications from contrib repository to src/apps (and include/lwip/apps) + + +++ Raw API: + * Changed TCP listen backlog: removed tcp_accepted(), added the function pair tcp_backlog_delayed()/ + tcp_backlog_accepted() to explicitly delay backlog handling on a connection pcb + + +++ Socket API: + * Added an implementation for posix sendmsg() + * Added LWIP_FIONREAD_LINUXMODE that makes ioctl/FIONREAD return the size of the next pending datagram + + ++ Port changes + + +++ new files: + * MANY new and moved files! + * Added src/Filelists.mk for use in Makefile projects + * Continued moving stack-internal parts from abc.h to abc_priv.h in sub-folder "priv" + to let abc.h only contain the actual application programmer's API + + +++ sys layer: + * Made LWIP_TCPIP_CORE_LOCKING==1 the default as it usually performs better than + the traditional message passing (although with LWIP_COMPAT_MUTEX you are still + open to priority inversion, so this is not recommended any more) + * Added LWIP_NETCONN_SEM_PER_THREAD to use one "op_completed" semaphore per thread + instead of using one per netconn (these semaphores are used even with core locking + enabled as some longer lasting functions like big writes still need to delay) + * Added generalized abstraction for itoa(), strnicmp(), stricmp() and strnstr() + in def.h (to be overridden in cc.h) instead of config + options for netbiosns, httpd, dns, etc. ... + * New abstraction for hton* and ntoh* functions in def.h. + To override them, use the following in cc.h: + #define lwip_htons(x) <your_htons> + #define lwip_htonl(x) <your_htonl> + + +++ new options: + * TODO + + +++ new pools: + * Added LWIP_MEMPOOL_* (declare/init/alloc/free) to declare private memp pools + that share memp.c code but do not have to be made global via lwippools.h + * Added pools for IPv6, MPU_COMPATIBLE, dns-api, netif-api, etc. + * added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when a memp pool was empty and an item + is now available + + * Signature of LWIP_HOOK_VLAN_SET macro was changed + + * LWIP_DECLARE_MEMORY_ALIGNED() may be used to declare aligned memory buffers (mem/memp) + or to move buffers to dedicated memory using compiler attributes + + * Standard C headers are used to define sized types and printf formatters + (disable by setting LWIP_NO_STDINT_H=1 or LWIP_NO_INTTYPES_H=1 if your compiler + does not support these) + + + ++ Major bugfixes/improvements + + * Added IPv6 support (dual-stack or IPv4/IPv6 only) + * Major rewrite of PPP (incl. keep-up with apache pppd) + see doc/ppp.txt for an upgrading how-to + * Major rewrite of SNMP (incl. MIB parser) + * Fixed timing issues that might have lead to losing a DHCP lease + * Made rx processing path more robust against crafted errors + * TCP window scaling support + * modification of api modules to support FreeRTOS-MPU (don't pass stack-pointers to other threads) + * made DNS client more robust + * support PBUF_REF for RX packets + * LWIP_NETCONN_FULLDUPLEX allows netconn/sockets to be used for reading/writing from separate + threads each (needs LWIP_NETCONN_SEM_PER_THREAD) + * Moved and reordered stats (mainly memp/mib2) + +(1.4.0) + + ++ 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 |