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753 lines
26 KiB
753 lines
26 KiB
FUTURE |
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* TODO: The lwIP source code makes some invalid assumptions on processor |
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word-length, storage sizes and alignment. See the mailing lists for |
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problems with exoteric (/DSP) architectures showing these problems. |
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We still have to fix some of these issues neatly. |
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* TODO: the PPP code is broken in a few ways. There are namespace |
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collisions on BSD systems and many assumptions on word-length |
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(sizeof(int)). In ppp.c an assumption is made on the availability of |
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a thread subsystem. Either PPP needs to be moved to contrib/ports/??? |
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or rearranged to be more generic. |
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* TODO: review the the sequential netconn and socket API (lwip/src/api) |
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for bugs and performance issues. Frequent system calls (e.g. sys_mbox_fetch) |
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slooow things down considerably. |
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HISTORY |
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(CVS HEAD) |
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* [Enter new changes just after this line - do not remove this line] |
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++ New features: |
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2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt) |
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* api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated |
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on the stack and remove the API msg type from memp |
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2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) |
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* sockets.h, sockets.c: Move socket initialization to new |
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lwip_socket_init() function. |
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NOTE: this changes the API with ports. Ports will have to be |
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updated to call lwip_socket_init() now. |
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2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) |
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* api_lib.c: Use memcpy in netbuf_copy_partial. |
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++ Bug fixes: |
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2007-03-06 Frédéric Bernon, Simon Goldschmidt |
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* opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration |
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option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput. |
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Allow to do ARP processing for incoming packets inside tcpip_thread |
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(protecting ARP layer against concurrent access). You can also disable |
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old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0. |
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Older ports have to use tcpip_ethinput. |
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2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov) |
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* err.h, err.c: fixed compiler warning "initialization dircards qualifiers |
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from pointer target type" |
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2007-03-05 Frédéric Bernon |
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* opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES, |
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ETHARP_TRUST_IP_MAC, review SO_REUSE) |
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2007-03-04 Frédéric Bernon |
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* api_msg.c: Remove some compiler warnings : parameter "pcb" was never |
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referenced. |
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2007-03-04 Frédéric Bernon |
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* api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from |
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Dmitry Potapov). |
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The api_msg struct stay on the stack (not moved to netconn struct). |
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2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov) |
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* pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if |
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SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available) |
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Also fixed cast warning in pbuf_alloc() |
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2007-03-04 Simon Goldschmidt |
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* etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt |
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existing pbuf chain when enqueuing multiple pbufs to a pending ARP request |
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2007-03-03 Frédéric Bernon |
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* udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;" |
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It is static, and never used in udp.c except udp_init(). |
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2007-03-02 Simon Goldschmidt |
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* tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from |
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tcpip_thread() to tcpip_init(). This way, raw API connections can be |
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initialized before tcpip_thread is running (e.g. before OS is started) |
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2007-03-02 Frédéric Bernon |
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* rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call |
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interval. |
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2007-02-28 Kieran Mansley |
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* pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved |
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outside the region of the pbuf by pbuf_header() |
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2007-02-28 Kieran Mansley |
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* sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero |
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when supplied timeout is also non-zero |
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(STABLE-1.2.0) |
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2006-12-05 Leon Woestenberg |
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* CHANGELOG: Mention STABLE-1.2.0 release. |
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++ New features: |
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2006-12-01 Christiaan Simons |
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* mem.h, opt.h: Added MEM_LIBC_MALLOC option. |
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Note this is a workaround. Currently I have no other options left. |
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2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour) |
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* ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define |
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to include/lwip/opt.h. |
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* ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL. |
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Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h. |
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* opt.h: Add above new options. |
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2006-08-18 Christiaan Simons |
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* tcp_{in,out}.c: added SNMP counters. |
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* ipv4/ip.c: added SNMP counters. |
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* ipv4/ip_frag.c: added SNMP counters. |
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2006-08-08 Christiaan Simons |
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* etharp.{c,h}: added etharp_find_addr() to read |
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(stable) ethernet/IP address pair from ARP table |
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2006-07-14 Christiaan Simons |
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* mib_structs.c: added |
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* include/lwip/snmp_structs.h: added |
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* netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct |
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2006-07-06 Christiaan Simons |
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* snmp/asn1_{enc,dec}.c added |
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* snmp/mib2.c added |
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* snmp/msg_{in,out}.c added |
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* include/lwip/snmp_asn1.h added |
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* include/lwip/snmp_msg.h added |
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* doc/snmp_agent.txt added |
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2006-03-29 Christiaan Simons |
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* inet.c, inet.h: Added platform byteswap support. |
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Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and |
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optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros. |
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++ Bug fixes: |
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2006-11-30 Christiaan Simons |
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* dhcp.c: Fixed false triggers of request_timeout. |
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2006-11-28 Christiaan Simons |
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* netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags. |
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2006-10-11 Christiaan Simons |
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* api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h: |
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Partially accepted patch #5449 for ANSI C compatibility / build fixes. |
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* ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol |
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identifier from 170 to 136 (bug #17574). |
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2006-10-10 Christiaan Simons |
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* api_msg.c: Fixed Nagle algorithm as reported by Bob Grice. |
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2006-08-17 Christiaan Simons |
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* udp.c: Fixed bug #17200, added check for broadcast |
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destinations for PCBs bound to a unicast address. |
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2006-08-07 Christiaan Simons |
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* api_msg.c: Flushing TCP output in do_close() (bug #15926). |
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2006-06-27 Christiaan Simons |
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* api_msg.c: Applied patch for cold case (bug #11135). |
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In accept_function() ensure newconn->callback is always initialized. |
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2006-06-15 Christiaan Simons |
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* mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748), |
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facilitate printing of mem_size_t and u16_t statistics. |
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2006-06-14 Christiaan Simons |
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* api_msg.c: Applied patch #5146 to handle allocation failures |
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in accept() by Kevin Lawson. |
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2006-05-26 Christiaan Simons |
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* api_lib.c: Removed conn->sem creation and destruction |
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from netconn_write() and added sys_sem_new to netconn_new_*. |
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(STABLE-1_1_1) |
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2006-03-03 Christiaan Simons |
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* ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap |
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access and added pbuf_alloc() return value checks. |
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2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is |
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now handled by the checksum routine properly. |
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2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* pbuf.c: Fix alignment; pbuf_init() would not work unless |
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pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.) |
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2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch |
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submitted by Mitrani Hiroshi. |
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2005-12-15 Christiaan Simons |
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* inet.c: Disabled the added summing routine to preserve code space. |
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2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson. |
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Added Curt McDowell's optimized checksumming routine for future |
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inclusion. Need to create test case for unaliged, aligned, odd, |
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even length combination of cases on various endianess machines. |
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2005-12-09 Christiaan Simons |
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* inet.c: Rewrote standard checksum routine in proper portable C. |
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2005-11-25 Christiaan Simons |
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* udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only. |
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* *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t, |
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u32_t, s32_t typedefs. This solves most debug word-length assumes. |
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2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* inet.c: Fixed unaligned 16-bit access in the standard checksum |
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routine by Peter Jolasson. |
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* slipif.c: Fixed implementation assumption of single-pbuf datagrams. |
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2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch. |
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* tcp_{out|in}.c: Applied patch fixing unaligned access. |
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2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement. |
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2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* udp.c: UDP pcb->recv() was called even when it was NULL. |
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(STABLE-1_1_0) |
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2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* etharp.*: Disabled multiple packets on the ARP queue. |
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This clashes with TCP queueing. |
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2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* etharp.*: Fixed race condition from ARP request to ARP timeout. |
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Halved the ARP period, doubled the period counts. |
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ETHARP_MAX_PENDING now should be at least 2. This prevents |
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the counter from reaching 0 right away (which would allow |
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too little time for ARP responses to be received). |
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2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* dhcp.c: Decline messages were not multicast but unicast. |
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* etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD. |
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Do not try hard to insert arbitrary packet's source address, |
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etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD. |
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etharp_query() now always DOES call ETHARP_TRY_HARD so that users |
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querying an address will see it appear in the cache (DHCP could |
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suffer from this when a server invalidly gave an in-use address.) |
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* ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are |
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comparing network addresses (identifiers), not the network masks |
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themselves. |
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* ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given |
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IP address actually belongs to the network of the given interface. |
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2004-11-24 Kieran Mansley <kjm25@cam.ac.uk> |
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* tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state. |
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(STABLE-1_1_0-RC1) |
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2004-10-16 Kieran Mansley <kjm25@cam.ac.uk> |
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* tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately, |
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even if one is already pending, if the rcv_wnd is above a threshold |
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(currently TCP_WND/2). This avoids waiting for a timer to expire to send a |
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delayed ACK in order to open the window if the stack is only receiving data. |
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2004-09-12 Kieran Mansley <kjm25@cam.ac.uk> |
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* tcp*.*: Retransmit time-out handling improvement by Sam Jansen. |
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2004-08-20 Tony Mountifield <tony@softins.co.uk> |
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* etharp.c: Make sure the first pbuf queued on an ARP entry |
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is properly ref counted. |
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2004-07-27 Tony Mountifield <tony@softins.co.uk> |
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* debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler |
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warnings about comparison. |
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* pbuf.c: Stopped compiler complaining of empty if statement |
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when LWIP_DEBUGF() empty. Closed an unclosed comment. |
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* tcp.c: Stopped compiler complaining of empty if statement |
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when LWIP_DEBUGF() empty. |
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* ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons(). |
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* inet.c: Added a couple of casts to quiet the compiler. |
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No need to test isascii(c) before isdigit(c) or isxdigit(c). |
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2004-07-22 Tony Mountifield <tony@softins.co.uk> |
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* inet.c: Made data types consistent in inet_ntoa(). |
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Added casts for return values of checksum routines, to pacify compiler. |
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* ip_frag.c, tcp_out.c, sockets.c, pbuf.c |
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Small corrections to some debugging statements, to pacify compiler. |
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2004-07-21 Tony Mountifield <tony@softins.co.uk> |
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* etharp.c: Removed spurious semicolon and added missing end-of-comment. |
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* ethernetif.c Updated low_level_output() to match prototype for |
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netif->linkoutput and changed low_level_input() similarly for consistency. |
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* api_msg.c: Changed recv_raw() from int to u8_t, to match prototype |
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of raw_recv() in raw.h and so avoid compiler error. |
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* sockets.c: Added trivial (int) cast to keep compiler happier. |
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* ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros. |
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(STABLE-1_0_0) |
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++ Changes: |
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2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure |
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your cc.h file defines this either 1 or 0. If non-defined, |
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defaults to 1. |
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* .c: Added <string.h> and <errno.h> includes where used. |
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* etharp.c: Made some array indices unsigned. |
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2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* netif.*: Added netif_set_up()/down(). |
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* dhcp.c: Changes to restart program flow. |
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2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* etharp.c: In find_entry(), instead of a list traversal per candidate, do a |
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single-pass lookup for different candidates. Should exploit locality. |
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2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* tcp*.c: Cleaned up source comment documentation for Doxygen processing. |
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* opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC. |
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* etharp.c: update_arp_entry() only adds new ARP entries when adviced to by |
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the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option. |
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++ Bug fixes: |
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2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution |
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suggested by Timmy Brolin. Fix for 32-bit processors that cannot access |
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non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix |
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is to prefix the 14-bit Ethernet headers with two padding bytes. |
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2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net> |
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* ip_addr.c: Fix in the ip_addr_isbroadcast() check. |
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* etharp.c: Fixed the case where the packet that initiates the ARP request |
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is not queued, and gets lost. Fixed the case where the packets destination |
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address is already known; we now always queue the packet and perform an ARP |
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request. |
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(STABLE-0_7_0) |
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++ Bug fixes: |
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* Fixed TCP bug for SYN_SENT to ESTABLISHED state transition. |
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* Fixed TCP bug in dequeueing of FIN from out of order segment queue. |
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* Fixed two possible NULL references in rare cases. |
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(STABLE-0_6_6) |
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++ Bug fixes: |
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* Fixed DHCP which did not include the IP address in DECLINE messages. |
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++ Changes: |
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* etharp.c has been hauled over a bit. |
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(STABLE-0_6_5) |
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++ Bug fixes: |
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* Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic. |
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* Packets sent from ARP queue had invalid source hardware address. |
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++ Changes: |
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* Pass-by ARP requests do now update the cache. |
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++ New features: |
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* No longer dependent on ctype.h. |
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* New socket options. |
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* Raw IP pcb support. |
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(STABLE-0_6_4) |
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++ Bug fixes: |
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* Some debug formatters and casts fixed. |
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* Numereous fixes in PPP. |
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++ Changes: |
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* DEBUGF now is LWIP_DEBUGF |
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* pbuf_dechain() has been re-enabled. |
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* Mentioned the changed use of CVS branches in README. |
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(STABLE-0_6_3) |
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++ Bug fixes: |
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* Fixed pool pbuf memory leak in pbuf_alloc(). |
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Occured if not enough PBUF_POOL pbufs for a packet pbuf chain. |
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Reported by Savin Zlobec. |
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* PBUF_POOL chains had their tot_len field not set for non-first |
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pbufs. Fixed in pbuf_alloc(). |
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++ New features: |
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* Added PPP stack contributed by Marc Boucher |
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++ Changes: |
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* Now drops short packets for ICMP/UDP/TCP protocols. More robust. |
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* ARP queueuing now queues the latest packet instead of the first. |
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This is the RFC recommended behaviour, but can be overridden in |
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lwipopts.h. |
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(0.6.2) |
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++ Bugfixes: |
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* TCP has been fixed to deal with the new use of the pbuf->ref |
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counter. |
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* DHCP dhcp_inform() crash bug fixed. |
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++ Changes: |
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* Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed |
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pbuf_refresh(). This has sped up pbuf pool operations considerably. |
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Implemented by David Haas. |
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(0.6.1) |
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++ New features: |
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* The packet buffer implementation has been enhanced to support |
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zero-copy and copy-on-demand for packet buffers which have their |
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payloads in application-managed memory. |
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Implemented by David Haas. |
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Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy |
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if an outgoing packet can be directly sent on the link, or perform |
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a copy-on-demand when necessary. |
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The application can safely assume the packet is sent, and the RAM |
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is available to the application directly after calling udp_send() |
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or similar function. |
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++ Bugfixes: |
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* ARP_QUEUEING should now correctly work for all cases, including |
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PBUF_REF. |
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Implemented by Leon Woestenberg. |
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++ Changes: |
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* IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer |
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to a '0.0.0.0' IP address. |
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* The packet buffer implementation is changed. The pbuf->ref counter |
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meaning has changed, and several pbuf functions have been |
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adapted accordingly. |
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* netif drivers have to be changed to set the hardware address length field |
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that must be initialized correctly by the driver (hint: 6 for Ethernet MAC). |
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See the contrib/ports/c16x cs8900 driver as a driver example. |
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* netif's have a dhcp field that must be initialized to NULL by the driver. |
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See the contrib/ports/c16x cs8900 driver as a driver example. |
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(0.5.x) This file has been unmaintained up to 0.6.1. All changes are |
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logged in CVS but have not been explained here. |
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(0.5.3) Changes since version 0.5.2 |
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++ Bugfixes: |
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* memp_malloc(MEMP_API_MSG) could fail with multiple application |
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threads because it wasn't protected by semaphores. |
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++ Other changes: |
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* struct ip_addr now packed. |
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* The name of the time variable in arp.c has been changed to ctime |
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to avoid conflicts with the time() function. |
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(0.5.2) Changes since version 0.5.1 |
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++ New features: |
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* A new TCP function, tcp_tmr(), now handles both TCP timers. |
|
|
|
++ Bugfixes: |
|
|
|
* A bug in tcp_parseopt() could cause the stack to hang because of a |
|
malformed TCP option. |
|
|
|
* The address of new connections in the accept() function in the BSD |
|
socket library was not handled correctly. |
|
|
|
* pbuf_dechain() did not update the ->tot_len field of the tail. |
|
|
|
* Aborted TCP connections were not handled correctly in all |
|
situations. |
|
|
|
++ Other changes: |
|
|
|
* All protocol header structs are now packed. |
|
|
|
* The ->len field in the tcp_seg structure now counts the actual |
|
amount of data, and does not add one for SYN and FIN segments. |
|
|
|
(0.5.1) Changes since version 0.5.0 |
|
|
|
++ New features: |
|
|
|
* Possible to run as a user process under Linux. |
|
|
|
* Preliminary support for cross platform packed structs. |
|
|
|
* ARP timer now implemented. |
|
|
|
++ Bugfixes: |
|
|
|
* TCP output queue length was badly initialized when opening |
|
connections. |
|
|
|
* TCP delayed ACKs were not sent correctly. |
|
|
|
* Explicit initialization of BSS segment variables. |
|
|
|
* read() in BSD socket library could drop data. |
|
|
|
* Problems with memory alignment. |
|
|
|
* Situations when all TCP buffers were used could lead to |
|
starvation. |
|
|
|
* TCP MSS option wasn't parsed correctly. |
|
|
|
* Problems with UDP checksum calculation. |
|
|
|
* IP multicast address tests had endianess problems. |
|
|
|
* ARP requests had wrong destination hardware address. |
|
|
|
++ Other changes: |
|
|
|
* struct eth_addr changed from u16_t[3] array to u8_t[6]. |
|
|
|
* A ->linkoutput() member was added to struct netif. |
|
|
|
* TCP and UDP ->dest_* struct members where changed to ->remote_*. |
|
|
|
* ntoh* macros are now null definitions for big endian CPUs. |
|
|
|
(0.5.0) Changes since version 0.4.2 |
|
|
|
++ New features: |
|
|
|
* Redesigned operating system emulation layer to make porting easier. |
|
|
|
* Better control over TCP output buffers. |
|
|
|
* Documenation added. |
|
|
|
++ Bugfixes: |
|
|
|
* Locking issues in buffer management. |
|
|
|
* Bugfixes in the sequential API. |
|
|
|
* IP forwarding could cause memory leakage. This has been fixed. |
|
|
|
++ Other changes: |
|
|
|
* Directory structure somewhat changed; the core/ tree has been |
|
collapsed. |
|
|
|
(0.4.2) Changes since version 0.4.1 |
|
|
|
++ New features: |
|
|
|
* Experimental ARP implementation added. |
|
|
|
* Skeleton Ethernet driver added. |
|
|
|
* Experimental BSD socket API library added. |
|
|
|
++ Bugfixes: |
|
|
|
* In very intense situations, memory leakage could occur. This has |
|
been fixed. |
|
|
|
++ Other changes: |
|
|
|
* Variables named "data" and "code" have been renamed in order to |
|
avoid name conflicts in certain compilers. |
|
|
|
* Variable++ have in appliciable cases been translated to ++variable |
|
since some compilers generate better code in the latter case. |
|
|
|
(0.4.1) Changes since version 0.4 |
|
|
|
++ New features: |
|
|
|
* TCP: Connection attempts time out earlier than data |
|
transmissions. Nagle algorithm implemented. Push flag set on the |
|
last segment in a burst. |
|
|
|
* UDP: experimental support for UDP-Lite extensions. |
|
|
|
++ Bugfixes: |
|
|
|
* TCP: out of order segments were in some cases handled incorrectly, |
|
and this has now been fixed. Delayed acknowledgements was broken |
|
in 0.4, has now been fixed. Binding to an address that is in use |
|
now results in an error. Reset connections sometimes hung an |
|
application; this has been fixed. |
|
|
|
* Checksum calculation sometimes failed for chained pbufs with odd |
|
lengths. This has been fixed. |
|
|
|
* API: a lot of bug fixes in the API. The UDP API has been improved |
|
and tested. Error reporting and handling has been |
|
improved. Logical flaws and race conditions for incoming TCP |
|
connections has been found and removed. |
|
|
|
* Memory manager: alignment issues. Reallocating memory sometimes |
|
failed, this has been fixed. |
|
|
|
* Generic library: bcopy was flawed and has been fixed. |
|
|
|
++ Other changes: |
|
|
|
* API: all datatypes has been changed from generic ones such as |
|
ints, to specified ones such as u16_t. Functions that return |
|
errors now have the correct type (err_t). |
|
|
|
* General: A lot of code cleaned up and debugging code removed. Many |
|
portability issues have been fixed. |
|
|
|
* The license was changed; the advertising clause was removed. |
|
|
|
* C64 port added. |
|
|
|
* Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri |
|
Kosunen, Mikael Caleres, and Frits Wilmink for reporting and |
|
fixing bugs! |
|
|
|
(0.4) Changes since version 0.3.1 |
|
|
|
* Memory management has been radically changed; instead of |
|
allocating memory from a shared heap, memory for objects that are |
|
rapidly allocated and deallocated is now kept in pools. Allocation |
|
and deallocation from those memory pools is very fast. The shared |
|
heap is still present but is used less frequently. |
|
|
|
* The memory, memory pool, and packet buffer subsystems now support |
|
4-, 2-, or 1-byte alignment. |
|
|
|
* "Out of memory" situations are handled in a more robust way. |
|
|
|
* Stack usage has been reduced. |
|
|
|
* Easier configuration of lwIP parameters such as memory usage, |
|
TTLs, statistics gathering, etc. All configuration parameters are |
|
now kept in a single header file "lwipopts.h". |
|
|
|
* The directory structure has been changed slightly so that all |
|
architecture specific files are kept under the src/arch |
|
hierarchy. |
|
|
|
* Error propagation has been improved, both in the protocol modules |
|
and in the API. |
|
|
|
* The code for the RTXC architecture has been implemented, tested |
|
and put to use. |
|
|
|
* Bugs have been found and corrected in the TCP, UDP, IP, API, and |
|
the Internet checksum modules. |
|
|
|
* Bugs related to porting between a 32-bit and a 16-bit architecture |
|
have been found and corrected. |
|
|
|
* The license has been changed slightly to conform more with the |
|
original BSD license, including the advertisement clause. |
|
|
|
(0.3.1) Changes since version 0.3 |
|
|
|
* Fix of a fatal bug in the buffer management. Pbufs with allocated |
|
RAM never returned the RAM when the pbuf was deallocated. |
|
|
|
* TCP congestion control, window updates and retransmissions did not |
|
work correctly. This has now been fixed. |
|
|
|
* Bugfixes in the API. |
|
|
|
(0.3) Changes since version 0.2 |
|
|
|
* New and improved directory structure. All include files are now |
|
kept in a dedicated include/ directory. |
|
|
|
* The API now has proper error handling. A new function, |
|
netconn_err(), now returns an error code for the connection in |
|
case of errors. |
|
|
|
* Improvements in the memory management subsystem. The system now |
|
keeps a pointer to the lowest free memory block. A new function, |
|
mem_malloc2() tries to allocate memory once, and if it fails tries |
|
to free some memory and retry the allocation. |
|
|
|
* Much testing has been done with limited memory |
|
configurations. lwIP now does a better job when overloaded. |
|
|
|
* Some bugfixes and improvements to the buffer (pbuf) subsystem. |
|
|
|
* Many bugfixes in the TCP code: |
|
|
|
- Fixed a bug in tcp_close(). |
|
|
|
- The TCP receive window was incorrectly closed when out of |
|
sequence segments was received. This has been fixed. |
|
|
|
- Connections are now timed-out of the FIN-WAIT-2 state. |
|
|
|
- The initial congestion window could in some cases be too |
|
large. This has been fixed. |
|
|
|
- The retransmission queue could in some cases be screwed up. This |
|
has been fixed. |
|
|
|
- TCP RST flag now handled correctly. |
|
|
|
- Out of sequence data was in some cases never delivered to the |
|
application. This has been fixed. |
|
|
|
- Retransmitted segments now contain the correct acknowledgment |
|
number and advertised window. |
|
|
|
- TCP retransmission timeout backoffs are not correctly computed |
|
(ala BSD). After a number of retransmissions, TCP now gives up |
|
the connection. |
|
|
|
* TCP connections now are kept on three lists, one for active |
|
connections, one for listening connections, and one for |
|
connections that are in TIME-WAIT. This greatly speeds up the fast |
|
timeout processing for sending delayed ACKs. |
|
|
|
* TCP now provides proper feedback to the application when a |
|
connection has been successfully set up. |
|
|
|
* More comments have been added to the code. The code has also been |
|
somewhat cleaned up. |
|
|
|
(0.2) Initial public release.
|
|
|