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CHANGELOG
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HISTORY
* These are only the most important changes. For a full list, use git log:
http://git.savannah.nongnu.org/cgit/lwip.git
(git master)
* [Enter new changes just after this line - do not remove this line]
2018-10-04: Jasper Verschueren
* Implement IPv4 ACD (Address Conflict Detection)
2018-10-02: Dirk Ziegelmeier
* Integrate contrib repository into main lwIP rep, tag STABLE-2_1_0_RELEASE
(STABLE-2.1.0):
++ New features:
2018-06-17: Simon Goldschmidt
* lwiperf: implemented iPerf client mode
2018-04-23: Dirk Ziegelmeier
* added cmake build files
2018-03-04: Ray Abram
* netbios responder: respond to '*' queries
2018-02-23: Benjamin Aigner
* 6lowpan: add 6lowpan-over-BLE netif (based on existing 6lowpan netif)
2018-02-22: Simon Goldschmidt
* ipv6: add support for stateless DHCPv6 (to get DNS servers in SLAAC nets)
2018-02-16: Simon Goldschmidt
* add raw API http(s) client (with proxy support)
2018-02-01: Simon Goldschmidt
* tcp: add hooks to implement additional socket options
2018-02-01: Simon Goldschmidt
* tcp: add hooks to implement tcp md5 signatures or similar (see contrib/addons for an example)
2018-01-05: Simon Goldschmidt
* Added sys_mbox_trypost_fromisr() and tcpip_callbackmsg_trycallback_fromisr()
These can be used to post preallocated messages from an ISR to the tcpip thread
(e.g. when using FreeRTOS)
2018-01-02: Dirk Ziegelmeier
* task #14780: Add debug helper asserts to ensure threading/locking requirements are met
2017-11-21: Simon Goldschmidt
* task #14600: tcp_alloc(): kill TF_CLOSEPEND connections before other ESTABLISHED
2017-11-21: Simon Goldschmidt
* makefsdata: added option "-ssi:<filename>" to control SSI tag checking/insertion
through a list of filenames, not by checking the file extension at runtime
2017-11-20: Joel Cunningham
* netconn: add LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE to use external DNS resolver (patch #9427)
2017-11-14: Joel Cunningham
* netifapi: Add thread safe ARP cache APIs (task #14724)
2017-11-06: Axel Lin
* TCP: kill existing connections with a LOWER priority than the one currently being opened.
Previous implementations also kill existing connections of the SAME priority.
2017-09-21: Kalle Olavi Niemitalo
* sockets: add poll() implementation (patch #9450)
2017-09-10: Joel Cunningham
* sockets: add readv() implementation (task #14610)
2017-08-04: Simon Goldschmidt
* Clean up DHCP a bit: no need keep msg_out and msg_in as members in struct
dhcp - they are used in a call stack only (p_out and options_out_len as well)
2017-08-04: Simon Goldschmidt
* pbuf: split pbuf_header(s16_t) into pbuf_add_header(size_t) and
pbuf_remove_header(size_t)
2017-07-20: Douglas
* sys: deprecate sys_arch_sem_wait and sys_arch_mbox_fetch returning the
time waited rather they are now defined to return != SYS_ARCH_TIMEOUT
on success.
2017-07-03: Jakub Schmidtke
* tcp: added support for sending TCP SACKs
2017-06-20: Joel Cunningham
* netconn/netdb: added core locking support to netconn_gethostbyname (task #14523)
2017-04-25: Simon Goldschmidt
* dhcp: added two hooks for adding and parsing user defined DHCP options
2017-04-25: Joel Cunningham
* sockets: added recvmsg for UDP (together with CMSG and IP_PKTINFO) (task #14247)
2017-04-20: Joel Cunningham
* tcp: added Appropriate Byte Counting support (task #14128)
2017-04-11: Simon Goldschmidt
* netconn/sockets: remove fatal error handling, fix asynchronous error handling,
ensure data before RST can be received
2017-03-30: Simon Goldschmidt
* added "application layered TCP" connection API (altcp) for seamless integration
of TLS or proxy connections
2017-03-09: Simon Goldschmidt
* sockets: add recvmsg for TCP
2017-03-02: Joel Cunningham
* netconn/sockets: vectorize netconn_write for TCP, treating a vectored I/O write
atomically in regards to TCP segmentation (patch #8882)
2017-03-02: Simon Goldschmidt
* netconn: added nonblocking accept/recv to netconn API (task #14396)
2017-02-28: Simon Goldschmidt
* Added LWIP_SINGLE_NETIF for small targets with only one netif
2017-02-10: David van Moolenbroek
* Implement UDP and RAW multicast support for IPv6 (core API, not netconn/sockets)
2017-02-04: David van Moolenbroek
* IPv6 scopes support
2017-01-20: Joel Cunningham
* sockets: add interface name/index APIs (task #14314)
2017-01-08: David van Moolenbroek
* Extensions to RAW API (patch #9208)
- Connected RAW PCBs
- Add raw_sendto_if_src()
- Support IP_HDRINCL socket option
++ Bugfixes:
2018-06-19: Simon Goldschmidt
* tcp: fix RTO timer not working if link is down
2018-06-15: Sylvain Rochet
* ppp: multiple smaller bugfixes
2018-05-17: Simon Goldschmidt
* etharp: arp table can now be bigger than 127 entries
2018-04-25: Jens Nielsen
* tftp server: correctly handle retransmissions
2018-04-18: Simon Goldschmidt
sockets: fix race conditions when closing full-duplex sockets
2018-03-09: Simon Goldschmidt
* 6lowpan: fix to work against contiki; added ZigBee encapsulation netif for tests
2018-02-04: Simon Goldschmidt
* sockets: fix inconsistencies on close (inconsistent error codes, double FIN)
2018-01-05: Dirk Ziegelmeier
* Fix bug #52748: the bug in timeouts.c by reimplementing timer logic to use
absolute instead of relative timeout values
2017-12-31: Dirk Ziegelmeier
* Fix bug #52704: DHCP and bad OFFER: Stop timeout only if offer is accepted
2017-11-08: Joel Cunningham
* netif: ensure link and admin states are up in issue reports (bug #52353)
2017-09-12: David Lockyer
* select: allocate select_cb from memp for LWIP_MPU_COMPATIBLE = 1 (bug #51990)
2017-09-11: Simon Goldschmidt
* tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
2017-08-11: Joel Cunningham
* lwip_itoa: fix converting the number 0 (previously converted to '\0') (bug #51729)
2017-08-08: Dirk Ziegelmeier
* ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -> ip4_route_src(src, dest)
to make parameter order consistent with other ip*_route*() functions
Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order.
2017-08-04: Joel Cunningham
* tcp: re-work persist timer to fully close window (details in bug #50837)
2017-07-26: Simon Goldschmidt
* snmp_msg.c: fix bug #51578 (SNMP failed to decode some values on non 32bit platforms)
2017-07-20: Simon Goldschmidt
* compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix',
'src/include/compat/stdc' etc.
2017-05-09: Joel Cunningham
* tcp: add zero-window probe timeout (bug #50837)
2017-04-11: Simon Goldschmidt
* sockets.c: task #14420 (Remove sys_sem_signal from inside SYS_ARCH_PROTECT
crit section) done for LWIP_TCPIP_CORE_LOCKING==1
2017-02-24: Simon Goldschmidt
* sockets.c: fixed close race conditions in lwip_select (for LWIP_NETCONN_FULLDUPLEX)
2017-02-24: Simon Goldschmidt
* sockets.c: fixed that select ignored invalid/not open sockets in the fd_sets (bug #50392)
2017-01-11: David van Moolenbroek
* Lots of IPv6 related fixes and improvements
(STABLE-2.0.3)
++ Bugfixes:
2017-09-11: Simon Goldschmidt
* tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
2017-08-02: Abroz Bizjak/Simon Goldschmidt
* multiple fixes in IPv4 reassembly (leading to corrupted datagrams received)
2017-03-30: Simon Goldschmidt
* dhcp.c: return ERR_VAL instead of asserting on offset-out-of-pbuf
2017-03-23: Dirk Ziegelmeier
* dhcp.h: fix bug #50618 (dhcp_remove_struct() macro does not work)
(STABLE-2.0.2)
++ New features:
2017-02-10: Dirk Ziegelmeier
* Implement task #14367: Hooks need a better place to be defined:
We now have a #define for a header file name that is #included in every .c
file that provides hooks.
2017-02-10: Simon Goldschmidt
* tcp_close does not fail on memory error (instead, FIN is sent from tcp_tmr)
++ Bugfixes:
2017-03-08
* tcp: do not keep sending SYNs when getting ACKs
2017-03-08: Joel Cunningham
* tcp: Initialize ssthresh to TCP_SND_BUF (bug #50476)
2017-03-01: Simon Goldschmidt
* httpd: LWIP_HTTPD_POST_MANUAL_WND: fixed double-free when httpd_post_data_recved
is called nested from httpd_post_receive_data() (bug #50424)
2017-02-28: David van Moolenbroek/Simon Goldschmidt
* tcp: fixed bug #50418: LWIP_EVENT_API: fix invalid calbacks for SYN_RCVD pcb
2017-02-17: Simon Goldschmidt
* dns: Improved DNS_LOCAL_HOSTLIST interface (bug #50325)
2017-02-16: Simon Goldschmidt
* LWIP_NETCONN_FULLDUPLEX: fixed shutdown during write (bug #50274)
2017-02-13: Simon Goldschmidt/Dirk Ziegelmeier
* For tiny targtes, LWIP_RAND is optional (fix compile time checks)
2017-02-10: Simon Goldschmidt
* tcp: Fixed bug #47485 (tcp_close() should not fail on memory error) by retrying
to send FIN from tcp_fasttmr
2017-02-09: Simon Goldschmidt
* sockets: Fixed bug #44032 (LWIP_NETCONN_FULLDUPLEX: select might work on
invalid/reused socket) by not allowing to reallocate a socket that has
"select_waiting != 0"
2017-02-09: Simon Goldschmidt
* httpd: Fixed bug #50059 (httpd LWIP_HTTPD_SUPPORT_11_KEEPALIVE vs.
LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED)
2017-02-08: Dirk Ziegelmeier
* Rename "IPv6 mapped IPv4 addresses" to their correct name from RFC4191:
"IPv4-mapped IPv6 address"
2017-02-08: Luc Revardel
* mld6.c: Fix bug #50220 (mld6_leavegroup does not send ICMP6_TYPE_MLD, even
if last reporter)
2017-02-08: David van Moolenbroek
* ip6.c: Patch #9250: fix source substitution in ip6_output_if()
2017-02-08: Simon Goldschmidt
* tcp_out.c: Fixed bug #50090 (last_unsent->oversize_left can become wrong value
in tcp_write error path)
2017-02-02: Dirk Ziegelmeier
* Fix bug #50206: UDP Netconn bind to IP6_ADDR_ANY fails
2017-01-18: Dirk Ziegelmeier
* Fix zero-copy RX, see bug bug #50064. PBUF_REFs were not supported as ARP requests.
2017-01-15: Axel Lin, Dirk Ziegelmeier
* minor bug fixes in mqtt
2017-01-11: Knut Andre Tidemann
* sockets/netconn: fix broken default ICMPv6 handling of checksums
(STABLE-2.0.1)
++ New features:
2016-12-31: Simon Goldschmidt
* tcp.h/.c: added function tcp_listen_with_backlog_and_err() to get the error
reason when listening fails (bug #49861)
2016-12-20: Erik Andersen
* Add MQTT client
2016-12-14: Jan Breuer:
* opt.h, ndc.h/.c: add support for RDNSS option (as per RFC 6106)
2016-12-14: David van Moolenbroek
* opt.h, nd6.c: Added LWIP_HOOK_ND6_GET_GW()
2016-12-09: Dirk Ziegelmeier
* ip6_frag.c: Implemented support for LWIP_NETIF_TX_SINGLE_PBUF
2016-12-09: Simon Goldschmidt
* dns.c: added one-shot multicast DNS queries
2016-11-24: Ambroz Bizjak, David van Moolenbroek
* tcp_out.c: Optimize passing contiguous nocopy buffers to tcp_write (bug #46290)
2016-11-16: Dirk Ziegelmeier
* sockets.c: added support for IPv6 mapped IPv4 addresses
++ Bugfixes:
2016-12-16: Thomas Mueller
* api_lib.c: fixed race condition in return value of netconn_gethostbyname()
(and thus also lwip_gethostbyname/_r() and lwip_getaddrinfo())
2016-12-15: David van Moolenbroek
* opt.h, tcp: added LWIP_HOOK_TCP_ISN() to implement less predictable initial
sequence numbers (see contrib/addons/tcp_isn for an example implementation)
2016-12-05: Dirk Ziegelmeier
* fixed compiling with IPv4 disabled (IPv6 only case)
2016-11-28: Simon Goldschmidt
* api_lib.c: fixed bug #49725 (send-timeout: netconn_write() can return
ERR_OK without all bytes being written)
2016-11-28: Ambroz Bizjak
* tcpi_in.c: fixed bug #49717 (window size in received SYN and SYN-ACK
assumed scaled)
2016-11-25: Simon Goldschmidt
* dhcp.c: fixed bug #49676 (Possible endless loop when parsing dhcp options)
2016-11-23: Dirk Ziegelmeier
* udp.c: fixed bug #49662: multicast traffic is now only received on a UDP PCB
(and therefore on a UDP socket/netconn) when the PCB is bound to IP_ADDR_ANY
2016-11-16: Dirk Ziegelmeier
* *: Fixed dual-stack behaviour, IPv6 mapped IPv4 support in socket API
2016-11-14: Joel Cunningham
* tcp_out.c: fixed bug #49533 (start persist timer when unsent seg can't fit
in window)
2016-11-16: Roberto Barbieri Carrera
* autoip.c: fixed bug #49610 (sometimes AutoIP fails to reuse the same address)
2016-11-11: Dirk Ziegelmeier
* sockets.c: fixed bug #49578 (dropping multicast membership does not work
with LWIP_SOCKET_OFFSET)
(STABLE-2.0.0)
++ New features:
2016-07-27: Simon Goldschmidt
* opt.h, timeouts.h/.c: added LWIP_TIMERS_CUSTOM to override the default
implementation of timeouts
2016-07-xx: Dirk Ziegelmeier
* Large overhaul of doxygen documentation
2016-04-05: Simon Goldschmidt
* timers.h/.c: prepare for overriding current timeout implementation: all
stack-internal caclic timers are avaliable in the lwip_cyclic_timers array
2016-03-23: Simon Goldschmidt
* tcp: call accept-callback with ERR_MEM when allocating a pcb fails on
passive open to inform the application about this error
ATTENTION: applications have to handle NULL pcb in accept callback!
2016-02-22: Ivan Delamer
* Initial 6LoWPAN support
2016-02-XX to 2016-03-XX: Dirk Ziegelmeier
* Cleanup TCPIP thread sync methods in a way that it is possibe to use them
in arbitrary code that needs things to be done in TCPIP thread. Used to
decouple netconn, netif, ppp and 6LoWPAN from LWIP core.
2016-02-XX: Dirk Ziegelmeier
* Implement dual-stack support in RAW, UDP and TCP. Add new IP address
type IPADDR_ANY_TYPE for this. Netconn/Socket API: Dual-stack is
automatically supported when an IPv6 netconn/socket is created.
2015-12-26: Martin Hentschel and Dirk Ziegelmeier
* Rewrite SNMP agent. SNMPv2c + MIB compiler.
2015-11-12: Dirk Ziegelmeier
* Decouple SNMP stack from lwIP core and move stack to apps/ directory.
Breaking change: Users have to call snmp_init() now!
2015-11-12: Dirk Ziegelmeier
* Implement possibility to declare private memory pools. This is useful to
decouple some apps from the core (SNMP stack) or make contrib app usage
simpler (httpserver_raw)
2015-10-09: Simon Goldschmidt
* started to move "private" header files containing implementation details to
"lwip/priv/" include directory to seperate the API from the implementation.
2015-10-07: Simon Goldschmidt
* added sntp client as first "supported" application layer protocol implementation
added 'apps' folder
2015-09-30: Dirk Ziegelmeier
* snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
implementation by aggregating the "base class" (struct mib_node) in all
derived node classes to get more type-safe code
2015-09-23: Simon Goldschmidt
* netif.h/.c, nd6.c: task #13729: Convert netif addresses (IPv4 & IPv6) to
ip_addr_t (so they can be used without conversion/temporary storage)
2015-09-08: Dirk Ziegelmeier
* snmp: Separate mib2 counter/table callbacks from snmp agent. This both cleans
up the code and should allow integration of a 3rd party agent/mib2. Simple
counters are kept in MIB2_STATS, tree/table change function prototypes moved to
snmp_mib2.h.
2015-09-03: Simon Goldschmidt
* opt.h, dns.h/.c: DNS/IPv6: added support for AAAA records
2015-09-01: Simon Goldschmidt
* task #12178: hardware checksum capabilities can be configured per netif
(use NETIF_SET_CHECKSUM_CTRL() in your netif's init function)
2015-08-30: Simon Goldschmidt
* PBUF_REF with "custom" pbufs is now supported for RX pbufs (see pcapif in
contrib for an example, LWIP_SUPPORT_CUSTOM_PBUF is required)
2015-08-30: Simon Goldschmidt
* support IPv4 source based routing: define LWIP_HOOK_IP4_ROUTE_SRC to point
to a routing function
2015-08-05: Simon Goldschmidt
* many files: allow multicast socket options IP_MULTICAST_TTL, IP_MULTICAST_IF
and IP_MULTICAST_LOOP to be used without IGMP
2015-04-24: Simon Goldschmidt
* dhcp.h/c, autoip.h/.c: added functions dhcp/autoip_supplied_address() to
check for the source of address assignment (replacement for NETIF_FLAG_DHCP)
2015-04-10: Simon Goldschmidt
* many files: task #13480: added LWIP_IPV4 define - IPv4 can be disabled,
leaving an IPv6-only stack
2015-04-09: Simon Goldschmidt
* nearly all files: task #12722 (improve IPv4/v6 address handling): renamed
ip_addr_t to ip4_addr_t, renamed ipX_addr_t to ip_addr_t and added IP
version; ip_addr_t is used for all generic IP addresses for the API,
ip(4/6)_addr_t are only used internally or when initializing netifs or when
calling version-related functions
2015-03-24: Simon Goldschmidt
* opt.h, ip4_addr.h, ip4.c, ip6.c: loopif is not required for loopback traffic
any more but passed through any netif (ENABLE_LOOPBACK has to be enabled)
2015-03-23: Simon Goldschmidt
* opt.h, etharp.c: with ETHARP_TABLE_MATCH_NETIF== 1, duplicate (Auto)-IP
addresses on multiple netifs should now be working correctly (if correctly
addressed by routing, that is)
2015-03-23: Simon Goldschmidt
* etharp.c: Stable etharp entries that are about to expire are now refreshed
using unicast to prevent unnecessary broadcast. Only if no answer is received
after 15 seconds, broadcast is used.
2015-03-06: Philip Gladstone
* netif.h/.c: patch #8359 (Provide utility function to add an IPv6 address to
an interface)
2015-03-05: Simon Goldschmidt
* netif.c, ip4.c, dhcp.c, autoip.c: fixed bug #37068 (netif up/down handling
is unclear): correclty separated administrative status of a netif (up/down)
from 'valid address' status
ATTENTION: netif_set_up() now always has to be called, even when dhcp/autoip
is used!
2015-02-26: patch by TabascoEye
* netif.c, udp.h/.c: fixed bug #40753 (re-bind UDP pcbs on change of IP address)
2015-02-22: chrysn, Simon Goldschmidt
* *.*: Changed nearly all functions taking 'ip(X)_addr_t' pointer to take
const pointers (changed user callbacks: raw_recv_fn, udp_recv_fn; changed
port callbacks: netif_output_fn, netif_igmp_mac_filter_fn)
2015-02-19: Ivan Delamer
* netif.h, dhcp.c: Removed unused netif flag for DHCP. The preferred way to evaluate
if DHCP is active is through netif->dhcp field.
2015-02-19: Ivan Delamer
* netif.h, slipif.c, ppp.c: Removed unused netif flag for point to point connections
2015-02-18: Simon Goldschmidt
* api_lib.c: fixed bug #37958 "netconn API doesn't handle correctly
connections half-closed by peer"
2015-02-18: Simon Goldschmidt
* tcp.c: tcp_alloc() prefers killing CLOSING/LAST_ACK over active connections
(see bug #39565)
2015-02-16: Claudius Zingerli, Sergio Caprile
* opt.h, dhcp.h/.c: patch #8361 "Add support for NTP option in DHCP"
2015-02-14: Simon Goldschmidt
* opt.h, snmp*: added support for write-access community and dedicated
community for sending traps
2015-02-13: Simon Goldschmidt
* opt.h, memp.c: added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when
a memp pool was empty and an item is now available
2015-02-13: Simon Goldschmidt
* opt.h, pbuf.h/.c, etharp.c: Added the option PBUF_LINK_ENCAPSULATION_HLEN to
allocate additional header space for TX on netifs requiring additional headers
2015-02-12: chrysn
* timers.h/.c: introduce sys_timeouts_sleeptime (returns the time left before
the next timeout is due, for NO_SYS==1)
2015-02-11: Nick van Ijzendoorn
* opt.h, sockets.h/c: patch #7702 "Include ability to increase the socket number
with defined offset"
2015-02-11: Frederick Baksik
* opt.h, def.h, others: patch #8423 "arch/perf.h" should be made an optional item
2015-02-11: Simon Goldschmidt
* api_msg.c, opt.h: started to implement fullduplex sockets/netconns
(note that this is highly unstable yet!)
2015-01-17: Simon Goldschmidt
* api: allow enabling socket API without (public) netconn API - netconn API is
still used by sockets, but keeping it private (static) should allow better
compiler optimizations
2015-01-16: Simon Goldschmidt
* tcp_in.c: fixed bug #20506 "Initial congestion window is very small" again
by implementing the calculation formula from RFC3390
2014-12-10: Simon Goldschmidt
* api: added option LWIP_NETCONN_SEM_PER_THREAD to use a semaphore per thread
instead of using one per netconn and per select call
2014-12-08: Simon Goldschmidt
* ip6.h: fixed bug #43778: IPv6 header version not set on 16-bit platform
(macro IP6H_VTCFL_SET())
2014-12-08: Simon Goldschmidt
* icmp.c, ip4.c, pbuf.c, udp.c, pbuf.h: task #11472 Support PBUF_REF for RX
(IPv6 and IPv4/v6 reassembly might not work yet)
2014-11-06: Simon Goldschmidt
* sockets.c/.h, init.c: lwip_socket_init() is not needed any more
-> compatibility define
2014-09-16: Simon Goldschmidt
* dns.c, opt.h: reduced ram usage by parsing DNS responses in place
2014-09-16: Simon Goldschmidt
* pbuf.h/.c: added pbuf_take_at() and pbuf_put_at()
2014-09-15: Simon Goldschmidt
* dns.c: added source port randomization to make the DNS client more robust
(see bug #43144)
2013-09-02: Simon Goldschmidt
* arch.h and many other files: added optional macros PACK_STRUCT_FLD_8() and
PACK_STRUCT_FLD_S() to prevent gcc 4 from warning about struct members that
do not need packing
2013-08-19: Simon Goldschmidt
* netif.h: bug #42998: made NETIF_MAX_HWADDR_LEN overridable for some special
networks
2013-03-17: Simon Goldschmidt (patch by Ghobad Emadi)
* opt.h, etharp.c: Added LWIP_HOOK_ETHARP_GET_GW to implement IPv4 routing with
multiple gateways
2013-04-20: Fatih Asici
* opt.h, etharp.h/.c: patch #7993: Added support for transmitting packets
with VLAN headers via hook function LWIP_HOOK_VLAN_SET and to check them
via hook function LWIP_HOOK_VLAN_CHECK
2014-02-20: Simon Goldschmidt (based on patch by Artem Pisarenko)
* patch #7885: modification of api modules to support FreeRTOS-MPU
(don't pass stack-pointers to other threads)
2014-02-05: Simon Goldschmidt (patch by "xtian" and "alex_ab")
* patch #6537/#7858: TCP window scaling support
2014-01-17: Jiri Engelthaler
* icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and
IPv6 ICMP's
2012-08-22: Sylvain Rochet
* New PPP stack for lwIP, developed in ppp-new branch.
Based from pppd 2.4.5, released 2009-11-17, with huge changes to match
code size and memory requirements for embedded devices, including:
- Gluing together the previous low-level PPP code in lwIP to pppd 2.4.5, which
is more or less what pppd sys-* files are, so that we get something working
using the unix port.
- Merged some patchs from lwIP Git repository which add interesting features
or fix bugs.
- Merged some patchs from Debian pppd package which add interesting features
or fix bugs.
- Ported PPP timeout handling to the lwIP timers system
- Disabled all the PPP code using filesystem access, replaced in necessary cases
to configuration variables.
- Disabled all the PPP code forking processes.
- Removed IPX support, lwIP does not support IPX.
- Ported and improved random module from the previous PPP port.
- Removed samba TDB (file-driven database) usage, because it needs a filesystem.
- MS-CHAP required a DES implementation, we added the latest PolarSSL DES
implementation which is under a BSD-ish license.
- Also switched to PolarSSL MD4,MD5,SHA1 implementations, which are meant to be
used in embedded devices with reduced memory footprint.
- Removed PPP configuration file parsing support.
- Added macro definition EAP_SUPPORT to make EAP support optional.
- Added macro definition CHAP_SUPPORT to make CHAP support optional.
- Added macro definition MSCHAP_SUPPORT to make MSCHAP support optional.
- Added macro definition PAP_SUPPORT to make PAP support optional.
- Cleared all Linux syscall calls.
- Disabled demand support using a macro, so that it can be ported later.
- Disabled ECP support using a macro, so that it can be ported later.
- Disabled CCP support using a macro, so that it can be ported later.
- Disabled CBCP support using a macro, so that it can be ported later.
- Disabled LQR support using a macro, so that it can be ported later.
- Print packet debug feature optional, through PRINTPKT_SUPPORT
- Removed POSIX signal usage.
- Fully ported PPPoS code from the previous port.
- Fully ported PPPoE code from the previous port.
- Fully ported VJ compression protocol code from the previous port.
- Removed all malloc()/free() use from PPP, replaced by stack usage or PBUF.
- Disabled PPP server support using a macro, so that it can be ported later.
- Switched all PPP debug to lwIP debug system.
- Created PPP Control Block (PPP PCB), removed PPP unit integer everywhere,
removed all global variables everywhere, did everything necessary for
the PPP stack to support more than one PPP session (pppd only support
one session per process).
- Removed the statically allocated output buffer, now using PBUF.
- Improved structure size of all PPP modules, deep analyze of code to reduce
variables size to the bare minimum. Switched all boolean type (char type in
most architecture) to compiler generated bitfields.
- Added PPP IPv6 support, glued lwIP IPv6 support to PPP.
- Now using a persistent netif interface which can then be used in lwIP
functions requiring a netif.
- Now initializing PPP in lwip_init() function.
- Reworked completely the PPP state machine, so that we don't end up in
anymore in inconsistent state, especially with PPPoE.
- Improved the way we handle PPP reconnection after disconnect, cleaning
everything required so that we start the PPP connection again from a
clean state.
- Added PPP holdoff support, allow the lwIP user to wait a little bit before
reconnecting, prevents connection flood, especially when using PPPoL2TP.
- Added PPPoL2TP LAC support (a.k.a. UDP tunnels), adding a VPN client
feature to lwIP, L2TP being a widely used tunnel protocol.
- Switched all used PPP types to lwIP types (u8t, u16t, u32t, ...)
- Added PPP API "sequential" thread-safe API, based from NETIFAPI.
2011-07-21: Simon Goldschmidt
* sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
ioctl/FIONREAD return the size of the next pending datagram.
2011-05-25: Simon Goldschmidt
* again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
code so that the code is more readable.
2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
* nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
Ivan! (this is work in progress: we're just post release anyway :-)
++ Bugfixes:
2016-08-23: Simon Goldschmidt
* etharp: removed ETHARP_TRUST_IP_MAC since it is insecure and we don't need
it any more after implementing unicast ARP renewal towards arp entry timeout
2016-07-20: Simon Goldschmidt
* memp.h/.c: fixed bug #48442 (memp stats don't work for MEMP_MEM_MALLOC)
2016-07-21: Simon Goldschmidt (patch by Ambroz Bizjak)
* tcp_in.c, tcp_out.c: fixed bug #48543 (TCP sent callback may prematurely
report sent data when only part of a segment is acked) and don't include
SYN/FIN in snd_buf counter
2016-07-19: Simon Goldschmidt
* etharp.c: fixed bug #48477 (ARP input packet might update static entry)
2016-07-11: Simon Goldschmidt
* tcp_in.c: fixed bug #48476 (TCP sent callback called wrongly due to picking
up old pcb->acked
2016-06-30: Simon Goldschmidt (original patch by Fabian Koch)
* tcp_in.c: fixed bug #48170 (Vulnerable to TCP RST spoofing)
2016-05-20: Dirk Ziegelmeier
* sntp.h/.c: Fix return value of sntp_getserver() call to return a pointer
2016-04-05: Simon Goldschmidt (patch by Philip Gladstone)
* udp.c: patch #8358: allow more combinations of listening PCB for IPv6
2016-04-05: Simon Goldschmidt
* netconn/socket API: fixed bug# 43739 (Accept not reporting errors about
aborted connections): netconn_accept() returns ERR_ABRT (sockets: ECONNABORTED)
for aborted connections, ERR_CLSD (sockets: EINVAL) if the listening netconn
is closed, which better seems to follow the standard.
2016-03-23: Florent Matignon
* dhcp.c: fixed bug #38203: DHCP options are not recorded in all DHCP ack messages
2016-03-22: Simon Goldschmidt
* tcp: changed accept handling to be done internally: the application does not
have to call tcp_accepted() any more. Instead, when delaying accept (e.g. sockets
do), call tcp_backlog_delayed()/tcp_backlog_accepted() (fixes bug #46696)
2016-03-22: Simon Goldschmidt
* dns.c: ignore dns response parsing errors, only abort resolving for correct
responses or error responses from correct server (bug #47459)
2016-03-17: Simon Goldschmidt
* api_msg.c: fixed bug #47448 (netconn/socket leak if RST is received during close)
2016-03-17: Joel Cunningham
* api_msg.c: don't fail closing a socket/netconn when failing to allocate the
FIN segment; blocking the calling thread for a while is better than risking
leaking a netconn/socket (see bug #46701)
2016-03-16: Joel Cunningham
* tcp_out.c: reset rto timer on fast retransmission
2016-03-16: Deomid Ryabkov
* tcp_out.c: fixed bug #46384 Segment size calculation bug with MSS != TCP_MSS
2016-03-05: Simon Goldschmidt
* err.h/.c, sockets.c: ERR_IF is not necessarily a fatal error
2015-11-19: fix by Kerem Hadimli
* sockets.c: fixed bug #46471: lwip_accept() leaks socket descriptors if new
netconn was already closed because of peer behavior
2015-11-12: fix by Valery Ushakov
* tcp_in.c: fixed bug #46365 tcp_accept_null() should call tcp_abort()
2015-10-02: Dirk Ziegelmeier/Simon Goldschmidt
* snmp: cleaned up snmp structs API (fixed race conditions from bug #46089,
reduce ram/rom usage of tables): incompatible change for private MIBs
2015-09-30: Simon Goldschmidt
* ip4_addr.c: fixed bug #46072: ip4addr_aton() does not check the number range
of all address parts
2015-08-28: Simon Goldschmidt
* tcp.c, tcp_in.c: fixed bug #44023: TCP ssthresh value is unclear: ssthresh
is set to the full send window for active open, too, and is updated once
after SYN to ensure the correct send window is used
2015-08-28: Simon Goldschmidt
* tcp: fixed bug #45559: Window scaling casts u32_t to u16_t without checks
2015-08-26: Simon Goldschmidt
* ip6_frag.h/.c: fixed bug bug #41009: IPv6 reassembly broken on 64-bit platforms:
define IPV6_FRAG_COPYHEADER==1 on these platforms to copy the IPv6 header
instead of referencing it, which gives more room for struct ip6_reass_helper
2015-08-25: Simon Goldschmidt
* sockets.c: fixed bug #45827: recvfrom: TCP window is updated with MSG_PEEK
2015-08-20: Manoj Kumar
* snmp_msg.h, msg_in.c: fixed bug #43790: Sending octet string of Length >255
from SNMP agent
2015-08-19: Jens Nielsen
* icmp.c, ip4.c, tcp_in.c, udp.c, raw.c: fixed bug #45120: Broadcast & multiple
interfaces handling
2015-08-19: Simon Goldschmidt (patch by "Sandra")
* dns.c: fixed bug #45004: dns response without answer might be discarded
2015-08-18: Chrysn
* timers.c: patch #8704 fix sys_timeouts_sleeptime function
2015-07-01: Erik Ekman
* puf.c: fixed bug #45454 (pbuf_take_at() skips write and returns OK if offset
is at start of pbuf in chain)
2015-05-19: Simon Goldschmidt
* dhcp.h/.c: fixed bugs #45140 and #45141 (dhcp was not stopped correctly after
fixing bug #38204)
2015-03-21: Simon Goldschmidt (patch by Homyak)
* tcp_in.c: fixed bug #44766 (LWIP_WND_SCALE: tcphdr->wnd was not scaled in
two places)
2015-03-21: Simon Goldschmidt
* tcp_impl.h, tcp.c, tcp_in.c: fixed bug #41318 (Bad memory ref in tcp_input()
after tcp_close())
2015-03-21: Simon Goldschmidt
* tcp_in.c: fixed bug #38468 (tcp_sent() not called on half-open connection for
data ACKed with the same ack as FIN)
2015-03-21: Simon Goldschmidt (patch by Christoffer Lind)
* dhcp.h/.c: fixed bug #38204 (DHCP lease time not handled correctly)
2015-03-20: Simon Goldschmidt
* dhcp.c: fixed bug #38714 (Missing option and client address in DHCPRELEASE message)
2015-03-19: Simon Goldschmidt
* api.h, tcpip.h, api_lib.c, api_msg.c: fixed race conditions in assigning
netconn->last_err (fixed bugs #38121 and #37676)
2015-03-09: Simon Goldschmidt
* ip4.c: fixed the IPv4 part of bug #43904 (ip_route() must detect linkup status)
2015-03-04: Simon Goldschmidt
* nd6.c: fixed bug #43784 (a host should send at least one Router Solicitation)
2015-03-04: Valery Ushakov
* ip6.c: fixed bug #41094 (Byte-order bug in IPv6 fragmentation header test)
2015-03-04: Zach Smith
* nd6.c: fixed bug #38153 (nd6_input() byte order issues)
2015-02-26: Simon Goldschmidt
* netif.c, tcp.h/.c: fixed bug #44378 (TCP connections are not aborted on netif
remove)
2015-02-25: Simon Goldschmidt
* ip4.c, etharp.c: fixed bug #40177 (System hangs when dealing with corrupted
packets), implemented task #12357 (Ensure that malicious packets don't
assert-fail): improved some pbuf_header calls to not assert-fail.
2015-02-25: patch by Joel Cunningham
* udp.h/.c, sockets.c: fixed bug #43028 (IP_MULTICAST_TTL affects unicast
datagrams)
2015-02-25: patch by Greg Renda
* ip4_frag.c: fixed bug #38210 (ip reassembly while remove oldest datagram)
2015-02-25: Simon Goldschmidt
* sockets.c: fixed bug #38165 (socket with mulicast): ensure igmp membership
are dropped when socket (not netconn!) is closed.
2015-02-25: Simon Goldschmidt
* ip4.h/.c, udp.c: fixed bug #38061 (wrong multicast routing in IPv4) by
adding an optional default netif for multicast routing
2015-02-25: Simon Goldschmidt
* netconn API: fixed that netconn_connect still used message passing for
LWIP_TCPIP_CORE_LOCKING==1
2015-02-22: patch by Jens Nielsen
* icmp.c: fixed bug #38803 (Source address in broadcast ping reply)
2015-02-22: Simon Goldschmidt
* udp.h, sockets.c: added proper accessor functions for pcb->multicast_ip
(previously used by get/setsockopt only)
2015-02-18: Simon Goldschmidt
* sockets.c: Fixed select not reporting received FIN as 'readable' in certain
rare cases (bug #43779: select(), close(), and TCP retransmission error)
2015-02-17: Simon Goldschmidt
* err.h, sockets.c, api_msg.c: fixed bug #38853 "connect() use a wrong errno":
return ERR_ALREADY/EALRADY during connect, ERR_ISCONN/EISCONN when already
connected
2015-02-17: Simon Goldschmidt
* tcp_impl.h, tcp_out.c, tcp.c, api_msg.c: fixed bug #37614 "Errors from
ipX_output are not processed". Now tcp_output(_segment) checks for the return
value of ipX_output and does not try to send more on error. A netif driver
can call tcp_txnow() (from tcpip_thread!) to try to send again if TX buffers
are available again.
2015-02-14: patches by Freddie Chopin
* snmp*: made community writable, fixed some const pointers
2015-02-13: Simon Goldschmidt
* msg_in.c: fixed bug #22070 "MIB_OBJECT_WRITE_ONLY not implemented in SNMP"
2015-02-12: Simon Goldschmidt
* ip.h, ip4.c, ip6.c: fixed bug #36403 "ip4_input() and ip6_input() always pass
inp to higher layers": now the accepting netif is passed up, but the input
netif is available through ip_current_input_netif() if required.
2015-02-11: patch by hichard
* tcpip.c: fixed bug #43094 "The function tcpip_input() forget to handle IPv6"
2015-02-10: Simon Goldschmidt
* netconn API: fixed that netconn_close/netconn_delete still used message passing
for LWIP_TCPIP_CORE_LOCKING==1
2015-02-10: Simon Goldschmidt
* netconn/socket api: fixed bug #44225 "closing TCP socket should time out
eventually", implemented task #6930 "Implement SO_LINGER": closing TCP sockets
times out after 20 seconds or after the configured SND_TIMEOUT or depending
on the linger settings.
2015-01-27: Simon Goldschmidt
* api_msg.c: fixed that SHUT_RD followed by SHUT_WR was different to SHUT_RDWR,
fixed return value of lwip_netconn_do_close on unconnected netconns
2015-01-17: Simon Goldschmidt
* sockets.c: fixed bug #43361 select() crashes with stale FDs
2015-01-17: Simon Goldschmidt
* sockets.c/.h, memp_std.h: fixed bug #40788 "lwip_setsockopt_internal() crashes"
by rewriting set/getsockopt functions to combine checks with the actual code
and add more NULL checks; this also fixes that CORE_LOCKING used message
passing for set/getsockopt.
2014-12-19: Simon Goldschmidt
* opt.h, dhcp.h/.c: prevent dhcp from starting when netif link is down (only
when LWIP_DHCP_CHECK_LINK_UP==1, which is disabled by default for
compatibility reasons)
2014-12-17: Simon Goldschmidt
* tcp_out.c: fixed bug #43840 Checksum error for TCP_CHECKSUM_ON_COPY==1 for
no-copy data with odd length
2014-12-10: Simon Goldschmidt
* sockets.c, tcp.c, others: fixed bug #43797 set/getsockopt: SO_SNDTIMEO/SO_RCVTIMEO
take int as option but should take timeval (LWIP_SO_SNDRCVTIMEO_STANDARD==0 can
be used to revert to the old 'winsock' style behaviour)
Fixed implementation of SO_ACCEPTCONN to just look at the pcb state
2014-12-09: Simon Goldschmidt
* ip4.c: fixed bug #43596 IGMP queries from 0.0.0.0 are discarded
2014-10-21: Simon Goldschmidt (patch by Joel Cunningham and Albert Huitsing)
* sockts.c: fixed bugs #41495 Possible threading issue in select() and #43278
event_callback() handle context switch when calling sys_sem_signal()
2014-10-21: Simon Goldschmidt
* api_msg.c: fixed bug #38219 Assert on TCP netconn_write with sndtimeout set
2014-09-16: Kevin Cernekee
* dns.c: patch #8480 Fix handling of dns_seqno wraparound
2014-09-16: Simon Goldschmidt
* tcp_out.c: fixed bug #43192 tcp_enqueue_flags() should not check TCP_SND_QUEUELEN
when sending FIN
2014-09-03: Simon Goldschmidt
* msg_in.c: fixed bug #39355 SNMP Memory Leak in case of error
2014-09-02: Simon Goldschmidt
* err.h/.c, sockets.c, api_msg.c: fixed bug #43110 call getpeername() before
listen() will cause a error
2014-09-02: Simon Goldschmidt
* sockets.c: fixed bug #42117 lwip_fcntl does not set errno
2014-09-02: Simon Goldschmidt
* tcp.c: fixed bug #42299 tcp_abort() leaves freed pcb on tcp_bound_pcbs list
2014-08-20: Simon Goldschmidt
* dns.c: fixed bug #42987 lwIP is vulnerable to DNS cache poisoning due to
non-randomized TXIDs
2014-06-03: Simon Goldschmidt
* tcp_impl.h, tcp_in.c: fixed bug #37969 SYN packet dropped as short packet in
tcp_input function
2014-05-20: Simon Goldschmidt
* tcp_out.c: fixed bug #37184 tcp_write problem for pcbs in the SYN_SENT state
2014-05-19: Simon Goldschmidt
* *.h: Fixed bug #35874 reserved identifier violation (removed leading underscores
from header include guards)
2014-04-08: Simon Goldschmidt
* tcp.c: Fixed bug #36167 tcp server crash when client closes (maximum window)