| TODO List for netfilter / iptables. |
| Currently maintained by Harald Welte <laforge@gnumonks.org> |
| |
| Please inform me, if you want to work on any of the TODO items, so I |
| can update this list and thus prevent two people doing the same work. |
| |
| CVS ID: $Id: TODO,v 1.63 2002/07/08 06:17:33 laforge Exp $ |
| |
| IMPORTANT issues: |
| x solution for nostate / notrack (we don't want to track specific conn's) |
| x multiple related connections (solved: newnat)[HW] |
| x add support for correct SACK handling [HW] |
| - erroneously too-fast dropped conntrack for half-open TCP connections [JK] |
| - wrong 'Out of window' error message from tcp-windowtracking [JK] |
| x mangle table should use all five netfilter hooks [BC] |
| - --mac-source not working in FORWARD (manpage bug?) |
| x netfilter hooks should give error if same function registers twice [HW] |
| x speed issues (mark_source_chains, Robert Olsson) |
| x fix apparent output nat + slip oops bug; see thread at |
| http://lists.samba.org/pipermail/netfilter/2001-December/017747.html |
| x TFTP helper: works only on second packet? |
| x necessary structures for helper match in newnat [HW] |
| x port old conntrack/nat helpers to newnat [HW] |
| x update NAT part of netfilter-hacking-HOWTO to newnat [HW] |
| x update packet traversal schematics to represent 5hook-mangle |
| - update manpages to include recently submitted extensions |
| x remove manually-specified source IP for reject-fakesource patch |
| - locally bound udp port can still be used for MASQ/SNAT |
| - fix for ICMP DNAT info leak |
| - unaligned access of nulldevname during string match |
| |
| TO BE INVESTIGATED: |
| - packet counters on ultrasparc platform (32bit userspace/64bit kernel issue) |
| - token ring crashes ?? |
| - iptables-save/restore problems with log-level |
| - ip_conntrack rmmod loop (sometimes, Yan's patch?) |
| - conntrack helper not called for first packet (udp!) |
| - different behaviour for first packet towards an l2-unresolved ip? |
| |
| NICE to have: |
| - endianness wrt. unnamed initializers in conntrack helpers after |
| pptp-patch applied |
| - make RPC conntrack work again |
| x interface names in ipv6 can contain _ and - |
| - multicast connection tracking |
| - sysctl support for ftp-multi, irc-conntrack/nat, ftp-fxp |
| - integrate HOPLIMIT for ipv6 in patch-o-matic [HW] |
| - u32 classifier (port from tc -> iptables) [YU] |
| x MARK match with boolean OR / AND (to use nfmark bitwise) |
| - documentation for libiptc |
| - port conntrack to IPv6 (code reuse?) [BC] |
| x make patch-o-matic reversible |
| x CONFIG_NF_IP_NAT_LOCAL |
| x fix and test the netfilter bridging stuff |
| - ip_nat_ident module |
| x provide daily CVS snapshots via ftp [HW] |
| - make iptables / ip6tables use the same codebase (as libiptc) [KA] |
| x REJECT optionally generates port unreachable with faked SOURCE |
| - libipq reentrancy [JM] |
| - compiling without O2 issue |
| x add more information like original addresses to the state match |
| - libipq runtime version, do before 1.2.5 [JM] |
| - add ICMP type-3-code-13 option to REJECT |
| - export list of matches/targets via proc-fs |
| |
| FUTURE extensions: |
| - dealing with fragmented expectation-causes (i.e. DCC chat split |
| over two packets, etc.) |
| - conntrack / nat failover [HW] |
| - brainstorming about 2.5 conntrack code |
| - netlink interface for conntrack manipulation from userspace [HW] |
| - unified nfnetlink for queue,ulog,conntrack (and more?) (2.5 issue) |
| |
| Userspace queuing for 2.5: |
| - Integration with nfnetlink. |
| - Multiple queues per protocol. |
| - Netlink broadcast support. |
| - Allow multiple reader/writers in userspace. |
| - How to handle multiple protocols (e.g. use separate queue handlers |
| or a multiplexer like ipqmpd). |
| - Peformance improvements: multipart messages, mmaped socket (possibly). |
| - Simplify queuing logic, which is quite ugly at the moment. (BC suggested |
| removing logic from kernel). |
| - Allow userspace to set nfmark. |
| - Allow userspace to set queue length etc. |
| - Possibly pass conntrack/NAT info to userspace with packet. |
| |
| ====================================================================== |
| [BC] Brad Chapman <kakadu_croc@yahoo.com> |
| [HW] Harald Welte <laforge@gnumonks.org> |
| [JK] Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
| [JM] James Morris <jmorris@intercode.com.au> |
| [KA] Kiz-Szabo Andras <kisza@sch.bme.hu> |
| [MB] Marc Boucher <marc@mbsi.ca> |
| [RR] Paul 'Rusty' Russel <rusty@rustcorp.com.au> |
| [YU] Yon Uriarte <ukl2@rz.uni-karlsruhe.de> |