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Fixed documentation after changing sys arch prototypes for 1.4.0
fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by updating its documentation only.
fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an unaligned pointer.
Fixed bug #33544 (warning in mem.c in lwip 1.4.0 with NO_SYS=1)
Combined IPv4 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP code so that the code is more readable.
... and finally, we got a first working version of a dual-stack lwIP runnin IPv4 and IPv6 in parallel - big thanks to Ivan Delamer! (this is work in progress, so please beware, test a lot and report problems!)
patch #7449 allow tcpip callback from interrupt with static memory message
Update CHANGELOG and version numbers for 1.4.0 release
sys_arch_timeouts() is not needed any more.
Fixed bug #33048 (Bad range for IP source port numbers) by using ports in the IANA private/dynamic range (49152 through 65535).
Fixed broken VLAN support.
Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp pcbs) by checking if the pcb was bound (local_port != 0).
Fixed bug #32280 (ppp: a pbuf is freed twice)
Fixed bug #32906: lwip_connect+lwip_send did not work for udp and raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
Fixed bug #32820 (Outgoing TCP connections created before route is present never times out) by starting retransmission timer before checking route.
Removed 'dataptr' from 'struct tcp_seg' and calculate it in tcp_zero_window_probe (the only place where it was used).
Fixed bug #32648 (PPP code crashes when terminating a link) by only calling sio_read_abort() if the file descriptor is valid.
fixed bug #31748 (Calling non-blocking connect more than once can render a socket useless) since it mainly involves changing "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN: use EALRADY instead of -1
Fixed bug #32561 tcp_poll argument definition out-of-order in documentation
Added missing U/UL modifiers to fix 16-bit-arch portability.
Fixed constant not being 32 bit.
Fixed bug #31741: lwip_select seems to have threading problems
Mreged back changes that were lost during the savannah hack 3 weeks ago (using the sources from http://git.infradead.org/users/dwmw2/lwip.git)
Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS after a successful nonblocking connection.
Fixed bug #31722: IP packets sent with an AutoIP source addr must be sent link-local
patch #7329: tcp_timer_needed prototype was ifdef'ed out for LWIP_TIMERS==0
Added a function to deallocate the struct dhcp from a netif (fixes bug #31525).
Fixed bug #31170: lwip_setsockopt() does not set socket number
Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to resemble other stacks.
Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else no-copy TCP writes will never succeed.
Fixed bug #31701: Error return value from dns_gethostbyname() does not match documentation: return ERR_ARG instead of ERR_VAL if not initialized or wrong argument.
Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
Once again fixed #30038: DHCP/AutoIP cooperation failed when replugging the network cable after an AutoIP address was assigned.
Fixed bug #30728: tcp_new_port() did not check listen pcbs
Don't chain empty pbufs when sending them (fixes bug #30625)
Applied patch #7264 (PPP protocols are rejected incorrectly on big endian architectures)
Fixed compilation with TCP or UDP disabled.
Fixed bug #30565 (tcp_connect() check bound list): that check did no harm but never did anything
Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not add IP options)
Fixed SNMP ASN constant defines to not use ! operator
task #10495: Added support for IP_MULTICAST_LOOP at socket- and raw-API level.
Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
fixed bug #30300 (shutdown parameter was not initialized in netconn_delete)
Remove unportable printing of C function pointers
From patch #7221: added flag NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
Fixed bug #10088: Correctly implemented shutdown at socket level.
Fixed bug #29361 (ip_frag has problems with zero-copy DMA MACs) by adding custom pbufs and implementing custom pbufs that reference other (original) pbufs. Additionally set IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow link-layer-addressed UDP traffic to be received while a netif is down (just like DHCP during configuration)
Fixed bug #29970: DHCP endian issue parsing option responses
Fixed bug #30039: AutoIP does not reuse previous addresses
Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop state
bug #27352: removed packing from ip_addr_t, the packed version is now only used in protocol headers. Added global storage for current src/dest IP address while in input functions.
Correctly NULL-terminate h_addr_list
Add preprocessor-macros for compile-time htonl calculation (and use them throughout the stack where applicable)
changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent "symbol already defined" i.e. when linking to winsock
PPPoE now uses its own MEMP pool instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own MEMP pool instead of the heap
Added new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast packets to more than one pcb
task #6995: Implement SO_REUSEADDR (correctly)
.. and deleted NAT again as Christian obviously didn't have the copyright on the code he sent us... THANKS!!!
task #7506: added NAT support
Fixed bug #29769 (sys_check_timeouts: sys_now() may overflow)
use checksum-on-copy for sending UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
task #6849: added udp_send(_to/_if) functions that take a precalculated checksum, added pbuf_fill_chksum() to copy data into a pbuf and at the same time calculating the checksum for that data
Create overridable macros for copying 2-byte-aligned IP addresses and MAC addresses
Inline generating IP checksum to save a function call
Fixed bug #29617 (sometime cause stall on delete listening connection)
Added an overridable define to get informed when the tcpip_thread processes messages or timeouts to implement a watchdog.
patch #7143: Add a few missing const qualifiers
create a new (contiguous) PBUF_RAM for every outgoing fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
Speedup TX by moving code from find_entry to etharp_output/etharp_query to prevent unnecessary function calls (inspired by patch #7135).
patch #7130: remove meaningless const qualifiers
Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
Fixed compiling with different options disabled (TCP/UDP), triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
Fixed bug #29332: lwip_select() processes readset incorrectly
Fixed bug #29080: Correctly handle remote side overrunning our rcv_wnd in ooseq case.
tcp_listen() did not copy the pcb's prio
Added an option to disable tcpip_(un)timeout code since the linker cannot do this automatically to save space.
Added support for static ARP table entries (added option ETHARP_SUPPORT_STATIC_ENTRIES) (+ added test); refactored the etharp code a bit
Fixed bug #29256: SNMP Trap address was not correctly set
task #6849: Calculate checksum when creating TCP segments, not when (re-)transmitting them.
Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h and basing PBUF_LINK_HLEN on it.
task #10241 (AutoIP: don't break existing connections when assiging routable address): when checking incoming packets and aborting existing connection on address change, filter out link-local addresses.
bug #28775 (select/event_callback: only check select_cb_list on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code. This should speed up receiving data on sockets as the select code in event_callback is only executed when select is waiting.
task #7013 (Create option to have all packets delivered to netif->output in one piece): Always copy to try to create single pbufs in tcp_write.
Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
task #10167 (sockets: speed up TCP recv by not allocating a netbuf): added function netconn_recv_tcp_pbuf() for tcp netconns to receive pbufs, not netbufs; use that function for tcp sockets.
Don't try to forward link-local addresses
Fixed bug #29087: etharp: don't send packets for LinkLocal-addresses to gw
Fixed bug #29072: Correctly set ciaddr based on message-type and state. Renamed dhcp_create/delect_request to dhcp_create/delete_msg.
Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split into multiple calls to tcp_write.
task #7040 (Work on tcp_enqueue): 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 const char* name to mem- and memp-stats for easier debugging.
task #10140: Remove DNS_USES_STATIC_BUF (keep the implementation of DNS_USES_STATIC_BUF==1)
Moved stack-internal parts of tcp.h to tcp_impl.h, tcp.h now only contains the actual application programmer's API
Task #10088: Correctly implement close() vs. shutdown(). Now the application does not get any more recv callbacks after calling tcp_close(). Added tcp_shutdown().
Renamed mem_realloc() to mem_trim() to prevent confusion with realloc()
Link status does not depend on LWIP_NETIF_LINK_CALLBACK (fixes bug #28899)
Fixed bug #28877 (Duplicate ARP gratuitous packet with LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and admin-status of a netif are up
Disable ETHARP_TRUST_IP_MAC by default since it slows down packet reception and is not really necessary
Fixed ARP input processing: only add a new entry if a request was directed as us (RFC 826, Packet Reception), otherwise only update existing entries; internalized some functions
Fixed bug #28183 (ARP and TCP/IP cannot be disabled on netif used for PPPoE) by adding a new netif flag (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet device but prevents usage of ARP (so that ethernet_input can be used for PPPoE).
Improved some defines working on ip addresses, added faster macro to copy addresses that cannot be NULL
task #7865 (implement non-blocking send operation)
Added a minimal version of posix fctl() to have a standardised way to set O_NONBLOCK for nonblocking sockets.
netif_set_link_up/down: only do something if the link state actually changes
task #10139 (Prefer statically allocated memory): added autoip_set_struct() and dhcp_set_struct() to let autoip and dhcp work with user-allocated structs instead of callin mem_malloc
patch #6865: use so_options SOF_REUSEADDR instead of flags TF_REUSEADDR (which has ben removed again)
patch #6865 (SO_REUSEADDR for TCP): if tcp_pcb.flags has TF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
Fixed bug #28865 (Cannot close socket/netconn in non-blocking connect)
task #10139 (Prefer statically allocated memory): 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; task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX to let sys.h use binary semaphores instead of mutexes - as before)
Fixed bug #28866 (mem_realloc function defined in mem.h)
Fixed bug #22110 (recv() makes receive window update for data that wasn't received by application); added function-like macros to correctly access/change conn->recv_timeout and conn->recv_bufsize
Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out or any netconn_recv() error)
task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
Added function sys_restart_timeouts() from patch #7085 (Restart system timeout handling)
For loopback packets, adjust the stats- and snmp-counters for the loopback netif.
task #10153 (Integrate loopif into netif.c) - loopif does not have to be created by the port any more, just define LWIP_HAVE_LOOPIF to 1.
Added reentrant versions of inet_ntoa/ipaddr_ntoa inet_ntoa_r/ipaddr_ntoa_r
Moved most defines from igmp.h to igmp.c for clarity since they are not used anywhere else; removed some function prototypes from igmp.h, too
added netif_s/get_igmp_mac_filter() macros
Improved IGMP stats (patch from bug #28798)
Fixed bug #28798 (Error in "Max Response Time" processing) and another bug when LWIP_RAND() returns zero.
Added function-like macros to get/set the hostname on a netif
Replaced struct ip_addr by typedef ip_addr_t to make changing the actual implementation behind the typedef easier.
Use macros defined in ip_addr.h (some of them new) to work with IP addresses (preparation for bug #27352 - Change ip_addr from struct to typedef (u32_t) - and better code).
Let netdb use a memp pool for allocating memory when getaddrinfo() is called.
Reworked the code that parses DHCP options: parse them once instead of parsing for every option. This also removes the need for mem_malloc from dhcp_recv and makes it possible to correctly retrieve the BOOTP file.
Don't call the link-callback from netif_set_up/down() since
this invalidly retriggers DHCP.
Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect the sockets array since the protection time is short
Added except set support in select (patch #6860)
Add non-blocking support for connect (partly from patch #6860) plus many cleanups in socket & netconn API
Cleanly separate the portability file inet.h and its contents from the stack: moved htonX- functions to def.h (and the new def.c - they are not ipv4 dependent), let inet.h depend on ip_addr.h and not the other way round. This fixes bug #28732.
Ensure ssthresh >= 2*MSS
Added TCP_SNDQUEUELOWAT corresponding to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
Fixed bug #27871: Calling tcp_abort() in recv callback can lead to accessing unallocated memory. As a consequence, ERR_ABRT means the application has called tcp_abort()!
Use memp pools for snmp instead of the heap; added 4 new pools.
Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY not implemented in SNMP): write-only or not-accessible are still returned by getnext (though not by get)
Renamed the private mib node from 'private' to 'mib_private' to *not* use reserved C/C++ keywords
Fixed bug #28716: select() returns 0 after waiting for less than 1 ms
Fixed bug #28651 (tcp_connect: no callbacks called if tcp_enqueue fails) both in raw- and netconn-API
Fixed bug #27316 (netconn: Possible deadlock in err_tcp) by using sys_mbox_trypost in err_tcp
reorganised PPP sourcecode to 2.3.11 including some bugfix backports from 2.4.x.
Fixed bug #28679: mem_realloc calculates mem_stats wrong and added test case for it
task #10102: "netconn: clean up conn->err threading issues" by adding error return value to struct api_msg_msg
task #10102: "netconn: clean up conn->err threading issues" by adding error return value to struct api_msg_msg
Changed netconn_recv() and netconn_accept() to return err_t (bugs #27709 and #28087)
Fixed bug #27856: PPP: Set netif link- and status-callback by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
Using typedefs for function prototypes and -pointers throughout the stack for clarity
Again: Fixed bug #26672 (close connection when receive window = 0) by correctly draining recvmbox/acceptmbox
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 (patch #6966 and bug #26133)
Fixed bug #13315 (PPP PAP authentication can result in erroneous callbacks) by copying the code from recent pppd
Fixed bug #28506 (raw_bind should filter received packets)
patch #6822 (Add option to place memory pools in separate arrays) - new config option MEMP_SEPARATE_POOLS
bug #28127: remove call to tcp_output() from tcp_ack(_now)()
patch #6463 (IGMP - Adding Random Delay): added define LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
Fixed bug #26672 (close connection when receive window = 0) by correctly draining recvmbox/acceptmbox
Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string passed to dns_local_addhost() might be volatile
Call tcp_timer_needed() with NO_SYS==1, too
Fixed bug #28496: missing include guards in netdb.h
Reorganised PPP source code from ucip structure to pppd structure to easily compare our code against the pppd code (around v2.3.1)
Separated timer implementation from semaphore/mbox implementation, moved timer implementation to timers.c/.h (TASK#7235)
Added an additional option LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
Another fix for bug #28241 (ooseq processing) and adapted corresponding unit test
Update CHANGELOG for 1.3.2
BUG28241: improve oos sequence processing with patches from Oleg Tyshev.
Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can be statically allocated (like in ucip)
patch #6969: PPP: missing PAP authentication UNTIMEOUT
Fixed bug #28106: dup ack for fast retransmit could have non-zero length
Fixed bug #27904: TCP sends too many ACKs: delay resetting tcp_input_pcb until after calling the pcb's callbacks
Fixed bug #28054: Two segments with FIN flag on the out-of-sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
Fixed bug #28098: Nagle can prevent fast retransmit from sending segment by basing the nagle-decision on TF_INFR also
Fixed bug #28099 (API required to disable Nagle algorithm at PCB level): added tcp_nagele_*() function-like macros
Fixed filename in last comment
Fixed bug #27905: FIN isn't combined with data on unsent
tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when reusing time-wait pcb as suggested by Bill 4 months ago
Fixed bug #28062: Data received directly after accepting does not wake up select
Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
Increased default value for TCP_MSS to 536, updated default value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
Fixed wrong filename
re-work the fast retransmission code to follow algorithm from TCP/IP Illustrated
Fix BUG#27445: grow cwnd with every duplicate ACK
Added netifapi_netif_set_addr()
bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if pcb->recv is NULL to keep rcv_wnd correct)
Another fix for bug #26251: RST process in TIME_WAIT TCP state
Fixed bug #27783: Silly window avoidance for small window sizes
Fixed bug #26251: RST process in TIME_WAIT TCP state
Changed fix for bug #27215 (TCP sent() callback gives leagin and trailing 1 byte len (SYN/FIN)) by decreasing pcb->acked appropriately
Minor code simplification (don't store received pbuf, change conditional code to assert where applicable), check pbuf length before testing for valid reply
Removed most calls to udp_connect since they aren't necessary when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
Fixed bug #27215: TCP sent() callback gives leadin and trailing 1 byte len (SYN/FIN)
Fixed bug #27315: zero window probe and FIN
Fixed bug #27390: Source IP check in ip_input() causes it to drop valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is enabled
Fixed bug #27329: dupacks by unidirectional data transmit
Fixed bug #27709: conn->err race condition on netconn_recv() timeout by directly returning when sys_arch_mbox_fetch times out.
Fixed bug #27704: autoip starts with wrong address: LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead of network byte order
Fixed bug #27504: tcp_enqueue wrongly concatenates segments which are not consecutive when retransmitting unacked segments
Fixed default values of some stats to only be enabled if used Fixes bug #27338: sys_stats is defined when NO_SYS = 1
patch #6888: Patch for UDP Netbufs to support dest-addr and dest-port
Reverted change for bug #27252 (Address pointer invalid after freeing pbuf in UDP receive callback) as it made more problems than before :-(
Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK function" by checking for loopback before calling ip_frag
bug #26397: Added SLIP polling support (uses sio_tryread)
Add patch #6725 to CHANGELOG
fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
task #9033: Support IEEE 802.1q tagged frame (VLAN), New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
patch #6900: added define ip_ntoa(struct ip_addr*)
Fixed bug #27078: Possible memory leak in pppInit()
Fixed bug #26657: DNS, if host name is "localhost", result is error.
Fixed bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF, Fixed wrong parenthesis, added check in init.c
Fixed bug #27266: wait-state debug message in pppMain occurs every ms
Fixed bug #27252: Address pointer invalid after freeing pbuf in UDP receive callback
bug #27267: Added include to string.h where needed
patch #6843: tcp.h macro optimization patch (for little endian)
Added function tcp_debug_state_str() to convert a tcp state to a human-readable string.
BUG27209: handle trimming of segments when out of window or out of order properly
BUG27199: use snd_wl2 instead of snd_wl1
Fixed bug #27105: "realloc() cannot replace mem_realloc()" by making mem_realloc static doing nothing when MEM_LIBC_MALLOC==1
Add missing #include directives
BUG23240 use signed counters for recv_avail and don't increment counters until message successfully sent to mbox
Update changelog for recent commits
fixed bug #26507: "Gratuitous ARP depends on arp_table / uses etharp_query" by adding etharp_gratuitous()
bug #26487: Added ip_output_if_opt that can add IP options to the IP header (used by igmp_ip_output_if)
task #7013: Added option LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only one pbuf to help MACs that don't support scatter-gather DMA.
Shrinked ICMP code, added option to NOT check icoming ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
Worked on dns: local host-list can be put into FLASH (by defining storage target/linker section), external function can be defined for lookup, combined dns_local_removehostname/removehostaddr to dns_local_removehost
On little endian architectures, use LWIP_PLATFORM_HTONS (if defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
Added ip_current_netif() & ip_current_header() to receive extended info about the currently received packet.
Fixed bug #26405: Prematurely released semaphore causes lwip_select() to crash
snmp was not initialized in lwip_init()
CHANGELOG: minor, typo
dhcp.c, netbios.c: Changes if IF_SOF_BROADCAST is enabled.
Fixed bug #26349: Nagle algorithm doesn't send although segment is full (and unsent->next == NULL)
fixed tcpip_untimeout (does not need the time, broken after 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
fixed bug #25636: SNMPSET value is ignored for integer fields
Addition to patch #6721, bug #25575: call autoip_stop in dhcp_stop if in coop-mode
Fixed bug #21680: PPP upap_rauthnak() drops legal NAK packets
Fixed bug #24228: Memory corruption with PPP and DHCP
raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception of broadcast packets even when this option wasn't set. Port maintainers which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h. If you want this option also filter broadcast on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
Integrated patch #6721: new option to adjust the time when DHCP gives over to AUTOIP and some improvements in DHCP/AUTOIP cooperation
Bug #25608: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
fixed bug #24212: "Deadlocked tcp_retransmit due to exceeded pcb->cwnd": Fixed by sorting the unsent and unacked queues (segments are inserted at the right place in tcp_output and tcp_rexmit)
bug #26213 "Problem with memory allocation when debugging": memp_sizes contained the wrong sizes (including sanity regions); memp pools for MEM_USE_POOLS were too small; Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
inet.c: patch #6765: Fix a small problem with the last changes (incorrect behavior, with ip address string not ended by a '\0', a space or a end of line)
Fixed bug #26069: Corrected documentation: if tcp_connect fails, pcb->err is called, not pcb->connected (with an error code).
task #7507, patch #6786: DNS supports static hosts table. New configuration options DNS_LOCAL_HOSTLIST and DNS_LOCAL_HOSTLIST_IS_DYNAMIC.
Fixed bug #26236: "TCP options (timestamp) don't work with no-copy-tcpwrite": deallocate option data, only concat segments with same flags
Fixed bug #25094: "Zero-length pbuf" (options are now allocated in the header pbuf, not the data pbuf); added function comments; "inline" is not supported by ANSI C (tcp_build_timetamp_option)
fixed bug #25695: Segmentation fault in do_writemore()
tried to fix bug #23559: lwip_recvfrom problem with tcp
task #9192: mem_free of dhcp->options_in and dhcp->msg_in
patch #6808: Add a utility function ip_hinted_output() (for smaller code mainly)
patch #6765: Supporting new line characters in inet_aton()
patch #6763: Global DHCP XID can be redefined to something more unique
patch #6764: DHCP rebind and renew did not send hostnam option; Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu is big enough in dhcp_start
bug #26027: netbuf_chain resulted in pbuf memory leak
bug #25763: Corrected 4 occurrences of SMEMCPY to MEMCPY; corrected indentation
bug #26121: set_errno can be overridden
Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when LWIP_TCP==0
Patch#6802 Add do-while-clauses to those function like macros in tcp.h
BUG20515: rework way TCP window updates are calculated and sent
TASK9218: add support for TCP timestamp options
BUG20779: cope with SYN packets received during established states, and retransmission of initial SYN.
BUG26010: set push bit correctly when tcp segments are merged
Correct change to probe window setting
BUG25622: handle return code of tcp_enqueue in tcp_listen_input()
BUG25629: set TCP_ACK flags on keepalive and zero window probes
cc.h: Added printf formatter for size_t: SZT_F
patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be too small depending on MEM_ALIGNMENT
patch #6539: (configurable) response to broadcast- and multicast pings
fixed arguments of socket functions to match the standard; converted size argument of netconn_write to 'size_t' for that; fixed some warnings
fixed bug #24440: TCP connection close problem on 64-bit host by moving accept callback function pointer to TCP_PCB_COMMON
Added LWIP_VERSION to get the current version of the stack (implements task #9032: Provide means to get Version of Stack and submodules)
fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size" option)
added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc is otherwise used)
fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
added configurable default valud for netconn->recv_bufsize: RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD: Accepts_pending is decrease on a corresponding listen pcb when a connection in state SYN_RCVD is close.
* ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial() is only used by UDPLITE at present, so conditionalise it.
* pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run out of pool pbufs.
Another fix for bug #6683 (and a typo in changelog)
patch #6699: fixed some warnings on platform where sizeof(int) == 2
sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and port uses deleted netbuf.
Checked in (slightly modified) patch #6683: Customizable AUTOIP "seed" address. This should reduce AUTOIP conflicts if LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
fixed bug ##24596: Vulnerability on faulty TCP options length in tcp_parseopt
fixed bug #24517: IP reassembly crashes on unaligned IP headers by packing the struct ip_reass_helper.
* etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
* sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking socket.
* dns.c: Hard-code structure sizes, to avoid issues on some compilers where padding is included.
* sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an assertion check that addrlen isn't NULL.
* tcp.c: Fix bug #24227, wrong error message in tcp_bind.
fixed bug #24132: Cross-dependency between ip_addr.h and inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
fixed bug #23847: do_close_internal references freed memory
stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
fixed bug #21433: Calling mem_free/pbuf_free from interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows mem_free to run between mem_malloc iterations. Added illegal counter for mem stats.
patch #6483: stats module improvement: Added defines to display each module's statistic individually, added stats defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
* tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
if tcp_seg_copy fails.
patch #6459: Made err_t overridable to use a more efficient type (define LWIP_ERR_T in cc.h)
Added a configuration option for slipif for symmetry to loopif (patch #6480)
Checked in some ideas of patch #6460 (loop optimizations) and created defines for swapping bytes and folding u32 to u16.
Changed loopback code (less difference between NO_SYS = 0 / 1), added setting LWIP_LOOPBACK_MAX_PBUFS to limit loopback-queued pbufs
Got the date & place of the newest feature wrong ;-)
Checked in slightly modified version of patch # 6370: Moved loopif code to netif.c so that loopback traffic is supported on all netifs (all local IPs).
Remove redundant "if" statement, and use real rcv_wnd rather than rcv_ann_wnd when deciding if packets are in-window. Contributed by <arasmussen@consultant.datasys.swri.edu>
Fix BUG#23254. Change macro definition of mem_* to allow passing as function pointers when MEM_LIBC_MALLOC is defined.
* err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
stop it being treated as a fatal error.
fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP (flag now cleared)
Changed the pbuf_free/mem_free callback functions a little: created extra functions for that
fixed bug #21433 (Calling mem_free/pbuf_free from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1 in lwipopts.h or use tcpip_callback_nonblocking(pbuf_free_int, p)/ tcpip_callback_nonblocking(mem_free, m) to free pbufs or heap memory from interrupt context
fixed bug #22249: division by zero could occur if a remote host sent a zero mss as TCP option.
Update CHANGELOG for 1.3.0
igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have some problems to fill the IP header on some targets, use now the ip.h macros to do it).
sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a TCP connection caused a crash. Note that using (lwip_)recvfrom like this is a bit slow and that using (lwip)getpeername is the good lwip way to do it (so, using recv is faster on tcp sockets).
api_msg.c: Fix bug #22530 "api_msg.c's recv_raw() does not consume data".
* inet_chksum.c: Allow choice of one of the sample algorithms to be
made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
* pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
* mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors and/or warnings on some systems where mem_size_t and size_t differ.
2008-03-04 Kieran Mansley (contributions by others)
* Numerous small compiler error/warning fixes from contributions to
mailing list after 1.3.0 release candidate made.
dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
Minor changes: typo in doc files.
2008-01-15 Kieran Mansley
* tcp_out.c: BUG20511. Modify persist timer to start when we are
prevented from sending by a small send window, not just a zero
send window.
rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the tcp_recv callback (see rawapi.txt).
ip.c: Integrate patch #6369" ip_input : checking before realloc".
tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field netconn::sem per netconn::op_completed like suggested for the task #7490 "Add return value to sys_mbox_post".
api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE, DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490 "Add return value to sys_mbox_post". tcpip_callback is always defined as "blocking" ("block" parameter = 1).
tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490 "Add return value to sys_mbox_post".
* opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid conflict with Linux system headers.
* dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP address entirely on receiving a DHCPNAK, and restarting discovery.
sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h: Introduce changes for task #7490 "Add return value to sys_mbox_post" with some modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which indicate the number of pointers query by the mailbox. There is three defines in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the netconn::acceptmbox. Port maintainers, you can decide to just add this new parameter in your implementation, but to ignore it to keep the previous behavior. The new sys_mbox_trypost function return a value to know if the mailbox is full or if the message is posted. Take a look to sys_arch.txt for more details. This new function is used in tcpip_input (so, can be called in an interrupt context since the function is not blocking), and in recv_udp and recv_raw.
rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c, tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add documentation in the rawapi.txt file.
Add persist timer
autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets in autoip". The change in etharp_raw could be removed, since all calls to etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be wrong in the future.
ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address Filtering" reported by Tom Evans.
tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c, sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API applications have to call 'tcp_accepted(pcb)' in their accept callback to keep accepting new connections.
sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail is not protected" by using new macros for interlocked access to modify/test netconn->recv_avail.
2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev) * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT stat)e
2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
* tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
of silly window avoidance and prevent lwIP from shrinking the window)
api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result" by err_t type. Add a new err_t code "ERR_INPROGRESS".
dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles are the ones which have ram usage.
netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static set of variables (=0) or a local one (=1). In this last case, your port should provide a function "struct hostent* sys_thread_hostent( struct hostent* h)" which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
fix bug #21699 (segment leak in ooseq): add assert that all segment lists are empty in tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED state from LAST_ACK in tcp_process
ip_input: check if a packet is for inp first before checking all other netifs on netif_list (speeds up packet receiving in most cases)
fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET. If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now has to be set to 0 in lwipopts.h
fix bug #21656 (recvmbox problem in netconn API): always allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox. This is a fix for thread-safety and allocates all items needed for a netconn when the netconn is created.
task #7497: Sort lists (pcb, netif, ...) for faster access UDP: move a (connected) pcb selected for input to the front of the list of pcbs so that it is found faster next time. Same for RAW pcbs that have eaten a packet.
first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
Introduced ETHARP_STATS
fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by letting ip_route only use netifs that are up.
Changed error handling: ERR_MEM, ERR_BUF and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and sockets block most operations once they have seen a fatal error.
Implemented new function udp_sendto_if which takes the netif to send as an argument (to be able to send on netifs that are down).
Fixed bug #21582: pcb->acked accounting can be wrong when ACKs arrive out-of-order
dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy algorithm; corrected some assert messages
Moved lwip_gethostbyname from sockets.c to the new file netdb.c; included lwip_getaddrinfo.
Implemented calculating the effective send-mss based on the MTU of the netif used to send. Enabled by default. Disable by setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21535.
Fixed bug #20287: tcp_output_nagle sends too early. This fixes the nagle algorithm; nagle now also works for all raw API applications and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name received match the name query), implement DNS_USES_STATIC_BUF (the place where copy dns payload to parse the response), return an error if there is no place for a new query, and fix some minor problems.
Added thread-safe function gethostbyname_r (as in glibc)
Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into inet and chksum part; changed includes in all lwIP files as appropriate
Added sequential (socket API) function gethostbyname and the struct hostent it uses
Added sequential dns resolver function for netconn api (netconn_gethostbyname)
opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name requests with RAW api interface. Initialization is done in lwip_init() with build time options. DNS timer is added in tcpip_thread context. DHCP can set DNS server ip addresses when options are received. You need to set LWIP_DNS=1 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo" list with points to improve.
sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most of the netconn_peer and netconn_addr processing is done inside tcpip_thread context in do_getaddr.
Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can happen any time). Now the packet simply isn't enqueued when out of memory.
Patch #6215: added ifAdminStatus write support (if explicitly enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
Task #7410: Removed the need to include core header files in api.h (ip/tcp/udp/raw.h) to hide the internal implementation from netconn api applications.
api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP & RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled by default). Netconn API users can use the netconn_recv_bufsize macro to access it. This is a first release which have to be improve for TCP. Note it used the netconn::recv_avail which need to be more "thread-safe" (note there is already the problem for FIONREAD with lwip_ioctl/ioctlsocket).
sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c: Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api layer. This option enable to delayed TCP PUSH flag on multiple "write" calls. Note that previous "copy" parameter for "write" APIs is now called "apiflags".
Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or TCP_MSS if that is smaller) as long as no MSS option is received from the remote host.
Fixed bug #21491: The MSS option sent (with SYN) is now based on TCP_MSS instead of pcb->mss (on passive open now effectively sending our configured TCP_MSS instead of the one received).
Fixed bug #21181: On active open, the initial congestion window was calculated based on the configured TCP_MSS, not on the MSS option received with SYN+ACK.
api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than TCP_EVENT_xxx macros to get a code more readable. It could also help to remove some code (like we have talk in "patch #5919 : Create compile switch to remove select code"), but it could be done later.
Changed initialization: many init functions are not needed any more since we now rely on the compiler initializing global and static variables to zero!
Fixed UDPLite receive: checksum was calculated wrong if checksum coverage != tot_len
lfree was not updated in mem_realloc!
Fixed UDPLite SENDING: Checksum was always generated too short and also was generated wrong if checksum coverage != tot_len.
Fix CHANGELOG entry
sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT: this change cause an API breakage for netconn_peer, since a parameter type change. Any compiler should cause an error without any changes in yours netconn_peer calls (so, it can't be a "silent change"). It also reduce a little bit the footprint for socket layer (lwip_getpeername & lwip_getsockname use now a common lwip_getaddrname function since netconn_peer & netconn_addr have the same parameters).
Changed IP_REASSEMBLY to enqueue the received pbufs so that multiple packets can be reassembled simultaneously and no static reassembly buffer is needed.
Moved ethernet_input from tcpip.c to etharp.c so all netifs (or ports) can use it.
netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the common function to reduce a little bit the footprint (for all functions using only the "netif" parameter).
netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down, netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce a little bit the footprint (for all functions using only the "netif" parameter).
Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state) by checking tcp_tw_pcbs also
Fixed bug #21077: inaccuracy in calculation of lwip_stat.mem.used
Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for IP_MULTICAST_TTL and IP_MULTICAST_IF.
enable to remove SNMP timer (which consumne several cycles even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime() each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime() or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro. This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only when it's queried (any direct call to "sysuptime" is changed by a call to snmp_get_sysuptime).
igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP, and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags if you want IGMP on an interface. igmp_stop() is now called inside netif_remove(). igmp_report_groups() is now called inside netif_set_link_up() (need to have LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait the next query message to receive the matching multicast streams).
sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change). Use this new field to access to common pcb fields (ttl, tos, so_options, etc...). Enable to access to these fields with LWIP_TCP=0.
Minor changes (but in lot of files): add #if/#endif for options where they could miss. #if LWIP_xxx if always put after #include "lwip/opt.h" (note this one indirectly include cc.h). Move others includes inside #if/#endif block.
several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h" if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
Integrate "task #7272 : LWIP_ICMP option". The new option LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default). Be careful, disabling ICMP make your product non-compliant to RFC1122, but help to reduce footprint, and to reduce "visibility" on the Internet.
Change parameters list for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new parameters have to be provided: a task name, and a task stack size. For this one, since it's platform dependant, you could define the best one for you in your lwipopts.h. For port maintainers, you can just add these new parameters in your sys_arch.c file, and but it's not mandatory, use them in your OS specific functions.
Move some build time checkings inside init.c for task #7142 "Sanity check user-configurable values".
Replace mem_malloc call by memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the value). It will avoid potential fragmentation problems, use a counter to know how many times a group is used on an netif, and free it when all applications leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity check if LWIP_IGMP!=0).
Changes for "#20503 IGMP Improvement". Initialize igmp_mac_filter to NULL in netif_add (this field should be set in the netif's "init" function). Use the "imr_interface" field (for socket layer) and/or the "interface" field (for netconn layer), for join/leave operations. The igmp_join/leavegroup first parameter change from a netif to an ipaddr. This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions from api/api_lib". Now netbuf API is independant of netconn, and can be used with other API (application based on raw API, or future "socket2" API). Ports maintainers just have to add src/api/netbuf.c in their makefile/projects.
igmp.h, igmp.c: Some changes to remove some redundant code, add some traces, and fix some coding style.
init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check user-configurable values".
igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start. igmp_start is call inside netif_add. Now, igmp initialization is in the same spirit than the others modules. Modify some IGMP debug traces.
Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function" Add lwip_init function to regroup all modules initializations, and to provide a place to add code for task #7142 "Sanity check user-configurable values". Ports maintainers should remove direct initializations calls from their code, and add init.c in their makefiles. Note that lwip_init() function is called inside tcpip_init, but can also be used by raw api users since all calls are disabled when matching options are disabled. Also note that their is new options in opt.h, you should configure in your lwipopts.h (they are enabled per default).
tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any kind of packets. These packets are considered like Ethernet packets (payload pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets are considered like IP packets (payload pointing to iphdr).
First fix for "bug #20900 : Potential crash error problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
Added CHANGELOG entries for my recent contributions.
netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up". Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy compiler (Paradigm C++)
netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT & ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the name is tcpip_input (we keep the name of 1.2.0 function).
*** empty log message ***
stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement. Introduce IGMP_STATS to centralize statistics management.
udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast packet on a udp pcb binded on an netif's IP address, and not on "any".
igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement. This is mainly on using lookup/lookfor, and some coding styles...
igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
Another fix for bug #20021: by not returning an error if tcp_output fails in tcp_close, the code in do_close_internal gets simpler (tcp_output is called again later from tcp timers).
Fixed bug #20429: use the new pbuf_copy_partial instead of the old copy_from_pbuf, which illegally modified the given pbuf; Introduced pbuf_copy_partial, making netbuf_copy_partial use this function.
tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs: changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
Fix bug #20506: Slow start / initial congestion window starts with 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and other stacks.
Fix bug #20480: Check the pcb passed to tcp_listen() for the correct state (must be CLOSED).
+bug fix #20478: memp_malloc now returns NULL for failed allocation (instead of NULL+MEMP_SIZE)
opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add a link callback in the netif struct, and functions to handle it. Be carefull for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c) if you want to be sure to be compatible with future changes...
api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in all error cases.
Fix bug #20315: possible memory leak problem if tcp_listen failed, because current code doesn't follow rawapi.txt documentation.
2007-07-13 Kieran Mansley
* src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
out of sequence processing of received packets
Added assertions where PBUF_RAM pbufs are used and an assumption is made that this pbuf is in one piece (i.e. not chained). These assumptions clash with the possibility of converting to fully pool-based pbuf implementations, where PBUF_RAM pbufs might be chained.
Final fix for bug #20021 and some other problems when closing tcp netconns: removed conn->sem, less context switches when closing, both netconn_close and netconn_delete should safely close tcp connections.
Added option LWIP_NETIF_HWADDRHINT (default=off) to cache ARP table indices with each pcb instead of single-entry cache for the complete stack.
Added some ASSERTS and casts to prevent warnings when assigning to smaller types.
sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
Added check to prevent tcp_pcb->snd_queuelen from overflowing.
Fixed bug #20287: Fixed nagle algorithm (sending was done too early if a segment contained chained pbufs)
autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute a "pseudo-random" value based on netif's MAC and some autoip fields. It's always possible to define this macro in your own lwipopts.h to always use C library's rand(). Note that autoip_create_rand_addr doesn't use this macro.
netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications in api_lib/api_msg (use pointers and not type with table, etc...)
Fixed bug #20259: struct udp_hdr was lacking the packin defines.
Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload for udp packets with no matching pcb.
Fixed bug #20220: UDP PCB search in udp_input(): a non-local match could get udp input packets if the remote side matched.
Combined etharp_request with etharp_raw for both LWIP_AUTOIP =0 and =1 to remove redundant code.
Introduced the option MEM_USE_POOLS to use 4 pools with different sized elements instead of a heap. This both prevents memory fragmentation and gives a higher speed at the cost of more memory consumption. Turned off by default.
Converted the length argument of netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into int to be able to send a bigger buffer than 64K with one time (mainly used from lwip_send).
Moved the nagle algorithm from netconn_write/do_write into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
Fixed bug #20021: Moved sendbuf-processing in netconn_write from api_lib.c to api_msg.c to also prevent multiple context-changes on low memory or empty send-buffer.
Changed etharp to use a defined hardware address length of 6 to avoid loading netif->hwaddr_len every time (since this file is only used for ethernet and struct eth_addr already had a defined length of 6).
Implemented socket options SO_NO_CHECK for UDP sockets to disable UDP checksum generation on transmit.
Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
pcb_new sets conn->err if protocol is not implemented -> netconn_new_..() does not allocate a new connection for unsupported protocols.
api_lib.c: change return expression in netconn_addr and netconn_peer, because conn->err was reset to ERR_OK without any reasons (and error was lost)...
debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid pointers or parameters, and let the possibility to redefined it in cc.h. Use this macro to check "conn" parameter in api_msg.c functions (some others change will be done...).
opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid some macro names collision with some OS macros.
Added UDP lite support for sockets
UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0, create checksum over the complete packet. On RX, if it's < 8 (and not 0), discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both UDP & UDP Lite.
tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags" where TCP flags wasn't initialized in tcp_keepalive. Reported by Srinivas Gollakota with help of Oleg Tyshev.
Included switch LWIP_UDPLITE (enabled by default) to switch off UDP-Lite support if not needed (reduces udp.c code size)
Contrib module by Dominik Spies: autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h: AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt (see TODO mark in the source code).
Modified order of parameters for etharp_output() to match netif->output so etharp_output() can be used directly as netif->output to save one function call.
Changed define NETIF_INIT_SNMP(type, speed) to include the name of the struct netif to change...
Added define NETIF_INIT_SNMP(type, speed) to initialize per-netif snmp variables, added initialization of those to slipif and loopif.
opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF (defaulting to off for now) that can be set to 0 to send fragmented packets by passing PBUF_REFs down the stack.
udp_input(): Input pbuf was not freed if pcb had no recv function registered, p->payload was modified without modifying p->len if sending icmp_dest_unreach() (had no negative effect but was definitively wrong).
Corrected bug #19937: ICMP assumes p_buf has space for ethernet header. Allocating new pbuf if the input pbuf isn't big enough.
Checked in patch #5914: Moved sockopt processing into tcpip_thread.
Minor, fix files modified by last patch...
api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP connections, such present in patch #5959.
api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only allocated by do_listen if success) and netconn_accept errors handling. In most of api_lib functions, we replace some errors checkings like "if (conn==NULL)" by ASSERT, except for netconn_delete.
api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return an error code if it's impossible to fetch a pbuf on a TCP connection (and not directly close the recvmbox).
api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx code in only one part...
sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features like "sys_timeout" in their application threads.
Fixed bug #1895 (tcp_bind not correct) by introducing a list of bound but unconnected (and non-listening) tcp_pcbs.
api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see which parameters are used by which do_xxx function, and to avoid "misusing" parameters (patch #5938).
Included patch #5938: changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto is only 8 bits wide. This affects the api, as there, the protocol was u16_t, too.
Addition to patch #5913: decrease size of memp_memory. Added option MEMP_OVERFLOW_CHECK to check for memp elements to overflow.
Fix bug #19729: free pbuf if netif->input() returns != ERR_OK.
If a udp_pcb has a local_ip set, check if it is the same as the one of the netif used for sending to prevent sending from old addresses after a netif address gets changed (partly fixes bug #3168).
tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in tcpip_init) because we have to be sure that network interfaces are already added (mac filter is updated only in igmp_init for the moment).
Removed semaphores from memp, changed sys_sem_wait calls into sys_arch_sem_wait calls to prevent timers from running while waiting for the heap. This fixes bug #19167.
task #6831: removed the option PBUF_POOL_USES_MEMP and removed the old pbuf pool code, pbuf pool now always allocates from a memp pool
(see task #6831): Included new option PBUF_POOL_USES_MEMP to use a memp pool for PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to remove redundant code.
Fixed bug from patch #5865 by moving the defines for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from tcp.h to sockets.h.
sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c: Include a function pointer instead of a table index in the message to reduce footprint. Disable some part of lwip_send and lwip_sendto if some options are not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
Included patch #5448: include '#ifdef __cplusplus \ extern "C" {' in all header files. Now you can write your application using the lwIP stack in C++ and simply #include the core files. Note I have left out the netif/ppp/*h header files for now, since I don't know which files are included by applications and which are for internal use only.
Included patch #5920: Create define to override C-library memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for situations where some compilers might inline the copy and save a function call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc()) to be overriden in case the C-library malloc implementation is not protected against concurrent access.
Another attempt to fix bug #17922
Further update to ARP queueing: Changed pbuf_copy() implementation so that it can be reused (don't allocate the target pbuf inside pbuf_copy()).
Introduced fast one-entry-cache to speed up ARP lookup when sending multiple packets to the same host.
checked in patch #5913: in memp_malloc() we can return memp as mem to save a little RAM (next pointer of memp is not used while not in pool).
sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible to corrupt remote addr/port connection state". Reduce problems "not enought memory" with netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function. WARNING, if you directly access to "fromaddr" & "fromport" field from netbuf struct, these fields are now renamed "addr" & "port".
* sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
(patch #3574).
fix bug #2595: "loopif results in NULL reference for incoming TCP packets". Loopif has to be configured (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input() (multithreading environments, e.g. netif->input() = tcpip_input()) or putting packets on a list that is fed to the stack by calling loopif_poll() (single-thread / NO_SYS / polling environment where e.g. netif->input() = ip_input).
* sockets.h: FD_SETSIZE needs to match number of sockets, which is
MEMP_NUM_NETCONN in sockets.c right now.
* pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold the difference between two u16_t's.
* icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
3rd fix for bug #11400 (arp-queuing): More pbufs than previously thought need to be copied (everything but PBUF_ROM!). Cleaned up pbuf.c: removed functions no needed any more (by etharp).
Oops, forgot final version of Changelog for last change I made.
* sys.h, api_lib.c: Provide new sys_mbox_tryfetch function.
Require ports to provide new sys_arch_mbox_tryfetch function to get
a message if one is there, otherwise return with SYS_MBOX_EMPTY.
Apply patch #5745: Fix "Constant is long" warnings with 16bit compilers. Contributed by avatar@mmlab.cse.yzu.edu.tw
opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp clients, using new functions from netifapi.h. Disable as default (no port change to do).
api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on the mailbox is active". Now, the post is only done during a connect, and do_send, do_write and do_join_leave_group don't do anything if a previous error was signaled.
sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
comment to the last check-in was incomplete: Introduced #define LWIP_UNUSED_ARG(x) use this for and architecture-independent form to tell the compiler you intentionally are not using this variable. Can be overriden in cc.h.
Introduced #define LWIP_UNUSED_ARG(x) use this for and architecture-independent form to tell the compiler you intentionally are not using this variable. Can be overriden in cc.h.
Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output packets. See patch #5834.
ip.c: if IP_REASSEMBLY is set to 1, don't set the IP_DF ("Don't fragment") flag in the IP header in IP output packets.
api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with others environment defines (these were too "generic").
api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call result and can cause a crash. lwip_send now check netbuf_ref result.
sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
defined. This is the way it should have been already (looking at
doc/sys_arch.txt)
2007-03-28 Kieran Mansley
* opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
IP and TCP headers *and* physical link headers
opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded string, point on one of your's ethernetif field, or alloc a string you will free yourself). It will be used by DHCP to register a client hostname, but can also be use when you call snmp_set_sysname.
netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to initialize a network interface's flag with. It tell this interface is an ethernet device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build time if you only use PPP or SLIP. The default is enable. Note we don't have to call etharp_init in your port's initilization sequence if you use tcpip.c, because this call is done in tcpip_init function.
api_lib.c (from Dmitry Potapov) : patch for netconn_write(), fixes a possible race condition which cause to send some garbage. It is not a definitive solution, but the patch does solve the problem for most cases.
stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in your lwipopts.h. More, unused counters are not defined in the stats structs, and not display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined but never used. Fix msg_in.c with the correct #if test for a stat display.
api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
api_lib.c: somes resources couldn't be freed if there was errors during netconn_new_with_proto_and_callback.
ethernetif.c: update netif->input calls to check return value. In older ports, it's a good idea to upgrade them, even if before, there could be another problem (access to an uninitialized mailbox).
fixed bug #5067 (essentialy a signed/unsigned warning fixed by casting to unsigned).
api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call. Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a faster and more reliable communication between api_lib and tcpip.
opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
api_msg.c, igmp.c, igmp.h: Fix C++ style comments
* netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com). Provides callback on netif up/down state change.
2007-03-21 Kieran Mansley
* opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
IP and TCP headers
* Fix all uses of pbuf_header to check the return value. In some
cases just assert if it fails as I'm not sure how to fix them, but
this is no worse than before when they would carry on regardless
of the failure.
sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and comment out missing header include in icmp.c
memp.h, stats.c: Fix stats_display function where memp_names table wasn't synchronized with memp.h
tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input, tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with network interfaces. Also fix a compiler warning.
udp.c: Only try and use pbuf_header() to make space for headers if not a ROM or REF pbuf.
Add return types to tcpip_apimsg() and api_msg_post() to check ERR_MEM problems (api_lib.c can be change now).
Remove unimplemented "memp_realloc" function from memp.h.
checked in patch #5796: pbuf_alloc: len field claculation caused memory corruption.
New configuration option LWIP_IGMP to enable IGMP processing. Based on only one filter per all network interfaces. Declare a new function in netif to enable to control the MAC filter (to reduce lwIP traffic processing). Mace Gael for the upper layers, Steve Reynolds for lower ones...
Fixed bug #19251 (missing `const' qualifier in socket functions), to get more compatible to standard POSIX sockets.
Based on patch from Dmitry Potapov, bug#19225. Add asserts inside bind, connect and sendto to check input parameters. Remove excessive set_errno() calls after get_socket(), because errno is set inside of get_socket(). Move last sock_set_errno() inside lwip_close.
Keepalive values can be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this unless you know what you're doing (default are RFC1122 compliant). Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds. Old TCP_KEEPALIVE can always be used, and its only difference with TCP_KEEPIDLE is this last use seconds and not milliseconds with setsockopt. Some documentation (not perfect, but...): http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.commtechref/doc/commtrf2/setsockopt.htm
Fixed bug #11400-2: New etharp queueing introduced bug: memp_memory was allocated too small.
Keepalive values can be configured at compile time, but don't change this unless you know what you're doing (default are RFC1122 compliant).
Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO on UDP sockets/netconn.
Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect the stack from concurrent access.
SNMP UDP ports can be configured at compile time
Fix some "little" build problems, and a redundancy call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input(). If LINK_STATS was defined, tcpip.c couldn't be build. Even if IP_FRAG or IP_REASSEMBLY were set, ip_frag.c functions are not build.
Implement SO_RCVTIMEO on UDP sockets/netconn.
Reduce code size: don't include code in those files if IP_FRAG == 0 and IP_REASSEMBLY == 0
opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput. Allow to do ARP processing for incoming packets inside tcpip_thread (protecting ARP layer against concurrent access). You can also disable old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0. Older ports have to use tcpip_ethinput.
fixed compiler warning "initialization dircards qualifiers from pointer target type"
opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES, ETHARP_TRUST_IP_MAC, review SO_REUSE). Also include directly tcp.h in sockets.h to improve application independancy from ip stack (avoid to include directly in application the "unknown" tcp.h if you need options like TCP_NODELAY and TCP_KEEPALIVE in application.
api_msg.c: Remove some compiler warnings : parameter "pcb" was never referenced.
api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from Dmitry Potapov). The api_msg struct stay on the stack (not moved to netconn struct).
Fixed buf #19168 based on patch by Dmitry Potapov
Fix BUG#11400 - don't corrupt existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;" Its is static, and never used in udp.c except udp_init().
tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from tcpip_thread() to tcpip_init()
no message
2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
* api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
on the stack and remove the API msg type from memp
* pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
outside the region of the pbuf by pbuf_header()
sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
when supplied timeout is also non-zero
* sockets.h, sockets.c: Move socket initialization to new
lwip_socket_init() function.
2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt) * api_lib.c: Use memcpy in netbuf_copy_partial.
Release 1.2.0.
Added MEM_LIBC_MALLOC option as workaround for failing mem_malloc().
Fixed false triggers of request_timeout.
In netif_add() fixed clearing of ip_addr, netmask, gw and flags.
Accepted patch #5493 IP frag/reass config item tweak.
Partially accepted patch #5449 for ANSI C compatibility / build fixes. Fixed bug #17574 corrected UDP-Lite protocol identifier.
Fixed Nagle algorithm as reported by Bob Grice.
Only mentioning SNMP development additions instead of changes, since we're in pre-alpha.
Fixed bug #17200, added check for broadcast destinations for PCBs bound to a unicast address.
Added etharp_find_addr(), finds eth/IP address pair by interface ptr and IP address.
Added minimalistic SNMP GET functionality.
Mentioned some recent cold case fixes.
Removed conn->sem creation and destruction from netconn_write() and added sys_sem_new to netconn_new_*
Remained indictator where new changes should go.
Added LWIP_PLATFORM_BYTESWAP optimalisation flag and macro glue.
Added upcoming 1.1.1 release to Changelog.
Added pbuf_alloc() return value checks in ip_frag().
pbuf alignment fix.
History update and listing PPP problems as todo.
Remove PCBs which stay in LAST_ACK state too long.
Added Curt McDowell's platform-independent optimized checksum routine.
Mention of multiple pbuf fix in slipif and unaligned access fix in checksumming.
Mentioned unaligned access fix.
4 February 2004, Leon Woestenberg <leon.woestenberg@gmx.net> tcp_out.c: queue was not initialized to NULL, but was referenced in memerr cleanup code.
Mention of missing semicolon, and pcb->recv() called even when NULL.
Updated CHANGELOG.
Mentioned ARP race fix.
Mentioned Kieran's and my changes - Leon.
Mentioned adapted TCP behaviour; send ACK even if one was pending, iff rcv_wnd is above threshold.
Mentioned adapted TCP behaviour; send ACK even if one was pending, iff rcv_wnd is above threshold.
Mentioned TCP retransmit time-out changes contributed by Sam Jansen, committed Kieran Mansley.
Added my July and August updates.
Mentioned 1.0.0.
Updated with latest changes.
Updated list of fixes/changes to the code.
Prepare for 0.7.2 release. Mention 0.7.2 in the Changelog before tagging STABLE-0_7_2.
Mention the merged fixed from HEAD.
Documented latest fixes in HEAD.
Mentioned the merge from HEAD.
Mentioned SO_REUSE #if fix.
Added missing #if LWIP_DHCP #endif pair.
dded comment about this being the pbuf banch to the CHANGELOG
Mentioned another ARP fix and named this 0.7.1 for release.
Mention ARP fix.
Merged from DEVEL to main. Two TCP fixes and two NULL reference fixes.
Merged from DEVEL. etharp prepared for queueing feature. DHCP fix.
Mentioned DHCP DECLINE message bug fix.
Merged from main to DEVEL. Includes mention of release 0.6.5.
Prepared Changelog for upcoming release 0.6.5. Fixed missing 0.6.4 number in history.
Merged from DEVEL into main tree.
Small change in Changelog TODO item.
Updated CHANGELOG to reflect recent changes.
Updated CHANGELOG to reflect recent changes. Clearified docs on merging.
Merged from DEVEL.
fixed 'numereous' misspelling.
Merged from DEVEL.
Updated the Changelog to reflect known changes.
Merge from main.
Mentioned pbuf_alloc() fixes.
Overwrote files from main as the merged_from_main_to_STABLE tag was incorrect.
Merged from main development tree HEAD.
Mention PPP in changelog
Major stylo search/replace for "One space between keyword and opening bracket."
Mentioned changes to netif that imply changes for network drivers.
Mentioned dhcp_inform() fix.
Mention DHCP fix.
Got rid of pbuf_pool_alloc_cache and pbuf_pool_free_cache. Also got rid of pbuf_refresh(). This has sped up pbuf pool operations.
Updated to reflect TCP fix.
Updated changelog to reflect some recent changes.
First attempt to track/explain changes that happened in CVS tree.
Mentioned the 0.6.0RC1 (Release Candidate 1).
Re-added without vendor tag.
Removed to get rid of vendor tag.
Updated texts to reflect move to http://savannah.nongnu.org/projects/lwip/
Initial import from Adam's 20021017 CVS archive w/ modified license.
Initial revision
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