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286 lines
8.5 KiB
286 lines
8.5 KiB
Changelog that precedes the move to Savannah: |
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(0.5.3) Changes since version 0.5.2 |
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++ Bugfixes: |
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* memp_malloc(MEMP_API_MSG) could fail with multiple application |
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threads because it wasn't protected by semaphores. |
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++ Other changes: |
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* struct ip_addr now packed. |
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* The name of the time variable in arp.c has been changed to ctime |
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to avoid conflicts with the time() function. |
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(0.5.2) Changes since version 0.5.1 |
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++ New features: |
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* A new TCP function, tcp_tmr(), now handles both TCP timers. |
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++ Bugfixes: |
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* A bug in tcp_parseopt() could cause the stack to hang because of a |
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malformed TCP option. |
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* The address of new connections in the accept() function in the BSD |
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socket library was not handled correctly. |
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* pbuf_dechain() did not update the ->tot_len field of the tail. |
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* Aborted TCP connections were not handled correctly in all |
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situations. |
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++ Other changes: |
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* All protocol header structs are now packed. |
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* The ->len field in the tcp_seg structure now counts the actual |
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amount of data, and does not add one for SYN and FIN segments. |
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(0.5.1) Changes since version 0.5.0 |
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++ New features: |
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* Possible to run as a user process under Linux. |
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* Preliminary support for cross platform packed structs. |
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* ARP timer now implemented. |
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++ Bugfixes: |
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* TCP output queue length was badly initialized when opening |
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connections. |
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* TCP delayed ACKs were not sent correctly. |
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* Explicit initialization of BSS segment variables. |
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* read() in BSD socket library could drop data. |
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* Problems with memory alignment. |
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* Situations when all TCP buffers were used could lead to |
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starvation. |
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* TCP MSS option wasn't parsed correctly. |
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* Problems with UDP checksum calculation. |
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* IP multicast address tests had endianess problems. |
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* ARP requests had wrong destination hardware address. |
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++ Other changes: |
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* struct eth_addr changed from u16_t[3] array to u8_t[6]. |
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* A ->linkoutput() member was added to struct netif. |
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* TCP and UDP ->dest_* struct members where changed to ->remote_*. |
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* ntoh* macros are now null definitions for big endian CPUs. |
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(0.5.0) Changes since version 0.4.2 |
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++ New features: |
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* Redesigned operating system emulation layer to make porting easier. |
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* Better control over TCP output buffers. |
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* Documenation added. |
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++ Bugfixes: |
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* Locking issues in buffer management. |
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* Bugfixes in the sequential API. |
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* IP forwarding could cause memory leakage. This has been fixed. |
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++ Other changes: |
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* Directory structure somewhat changed; the core/ tree has been |
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collapsed. |
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(0.4.2) Changes since version 0.4.1 |
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++ New features: |
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* Experimental ARP implementation added. |
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* Skeleton Ethernet driver added. |
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* Experimental BSD socket API library added. |
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++ Bugfixes: |
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* In very intense situations, memory leakage could occur. This has |
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been fixed. |
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++ Other changes: |
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* Variables named "data" and "code" have been renamed in order to |
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avoid name conflicts in certain compilers. |
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* Variable++ have in appliciable cases been translated to ++variable |
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since some compilers generate better code in the latter case. |
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(0.4.1) Changes since version 0.4 |
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++ New features: |
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* TCP: Connection attempts time out earlier than data |
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transmissions. Nagle algorithm implemented. Push flag set on the |
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last segment in a burst. |
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* UDP: experimental support for UDP-Lite extensions. |
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++ Bugfixes: |
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* TCP: out of order segments were in some cases handled incorrectly, |
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and this has now been fixed. Delayed acknowledgements was broken |
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in 0.4, has now been fixed. Binding to an address that is in use |
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now results in an error. Reset connections sometimes hung an |
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application; this has been fixed. |
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* Checksum calculation sometimes failed for chained pbufs with odd |
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lengths. This has been fixed. |
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* API: a lot of bug fixes in the API. The UDP API has been improved |
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and tested. Error reporting and handling has been |
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improved. Logical flaws and race conditions for incoming TCP |
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connections has been found and removed. |
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* Memory manager: alignment issues. Reallocating memory sometimes |
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failed, this has been fixed. |
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* Generic library: bcopy was flawed and has been fixed. |
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++ Other changes: |
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* API: all datatypes has been changed from generic ones such as |
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ints, to specified ones such as u16_t. Functions that return |
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errors now have the correct type (err_t). |
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* General: A lot of code cleaned up and debugging code removed. Many |
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portability issues have been fixed. |
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* The license was changed; the advertising clause was removed. |
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* C64 port added. |
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* Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri |
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Kosunen, Mikael Caleres, and Frits Wilmink for reporting and |
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fixing bugs! |
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(0.4) Changes since version 0.3.1 |
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* Memory management has been radically changed; instead of |
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allocating memory from a shared heap, memory for objects that are |
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rapidly allocated and deallocated is now kept in pools. Allocation |
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and deallocation from those memory pools is very fast. The shared |
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heap is still present but is used less frequently. |
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* The memory, memory pool, and packet buffer subsystems now support |
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4-, 2-, or 1-byte alignment. |
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* "Out of memory" situations are handled in a more robust way. |
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* Stack usage has been reduced. |
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* Easier configuration of lwIP parameters such as memory usage, |
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TTLs, statistics gathering, etc. All configuration parameters are |
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now kept in a single header file "lwipopts.h". |
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* The directory structure has been changed slightly so that all |
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architecture specific files are kept under the src/arch |
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hierarchy. |
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* Error propagation has been improved, both in the protocol modules |
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and in the API. |
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* The code for the RTXC architecture has been implemented, tested |
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and put to use. |
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* Bugs have been found and corrected in the TCP, UDP, IP, API, and |
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the Internet checksum modules. |
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* Bugs related to porting between a 32-bit and a 16-bit architecture |
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have been found and corrected. |
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* The license has been changed slightly to conform more with the |
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original BSD license, including the advertisement clause. |
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(0.3.1) Changes since version 0.3 |
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* Fix of a fatal bug in the buffer management. Pbufs with allocated |
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RAM never returned the RAM when the pbuf was deallocated. |
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* TCP congestion control, window updates and retransmissions did not |
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work correctly. This has now been fixed. |
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* Bugfixes in the API. |
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(0.3) Changes since version 0.2 |
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* New and improved directory structure. All include files are now |
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kept in a dedicated include/ directory. |
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* The API now has proper error handling. A new function, |
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netconn_err(), now returns an error code for the connection in |
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case of errors. |
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* Improvements in the memory management subsystem. The system now |
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keeps a pointer to the lowest free memory block. A new function, |
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mem_malloc2() tries to allocate memory once, and if it fails tries |
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to free some memory and retry the allocation. |
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* Much testing has been done with limited memory |
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configurations. lwIP now does a better job when overloaded. |
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* Some bugfixes and improvements to the buffer (pbuf) subsystem. |
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* Many bugfixes in the TCP code: |
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- Fixed a bug in tcp_close(). |
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- The TCP receive window was incorrectly closed when out of |
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sequence segments was received. This has been fixed. |
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- Connections are now timed-out of the FIN-WAIT-2 state. |
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- The initial congestion window could in some cases be too |
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large. This has been fixed. |
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- The retransmission queue could in some cases be screwed up. This |
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has been fixed. |
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- TCP RST flag now handled correctly. |
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- Out of sequence data was in some cases never delivered to the |
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application. This has been fixed. |
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- Retransmitted segments now contain the correct acknowledgment |
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number and advertised window. |
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- TCP retransmission timeout backoffs are not correctly computed |
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(ala BSD). After a number of retransmissions, TCP now gives up |
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the connection. |
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* TCP connections now are kept on three lists, one for active |
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connections, one for listening connections, and one for |
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connections that are in TIME-WAIT. This greatly speeds up the fast |
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timeout processing for sending delayed ACKs. |
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* TCP now provides proper feedback to the application when a |
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connection has been successfully set up. |
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* More comments have been added to the code. The code has also been |
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somewhat cleaned up. |
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(0.2) Initial public release.
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