TODO List for netfilter / iptables. Currently maintained by Harald Welte 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 1.68 2003/01/10 14:50:24 laforge Exp $ IMPORTANT issues: - erroneously too-fast dropped conntrack for half-open TCP connections [JK] X wrong 'Out of window' error message from tcp-windowtracking [JK] - --mac-source not working in FORWARD (manpage bug?) [BZ] - update manpages to include recently submitted extensions [BZ] - locally bound udp port can still be used for MASQ/SNAT [BZ] - fix for ICMP DNAT info leak - unaligned access of nulldevname during string match [BZ] - update documentation to reflect newnat - ip6_tables not working on ultrasparc [BZ] (20020912155314.GA20741@paradigm.rfc822.org) TO BE INVESTIGATED: - packet counters on sparc64 platform [BZ] - token ring crashes ?? - 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 X make RPC conntrack work again - multicast connection tracking - sysctl support for ftp-multi, irc-conntrack/nat, ftp-fxp [BZ] X integrate HOPLIMIT for ipv6 in patch-o-matic [HW] - u32 classifier (port from tc -> iptables) [YU] - port conntrack to IPv6 (code reuse?) [BC] - ip_nat_ident module [BZ] - make iptables / ip6tables use the same codebase (as libiptc) [KA] - libipq reentrancy [JM] - compiling without O2 issue [BZ] - libipq runtime version, do before 1.2.5 [JM] - add ICMP type-3-code-13 option to REJECT [BZ] - export list of matches/targets via proc-fs [BZ] - ip6tables mangle needs 'route_me_harder' equivalent [BZ] 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 [HW] Harald Welte [JK] Jozsef Kadlecsik [JM] James Morris [KA] Kiz-Szabo Andras [MB] Marc Boucher [RR] Paul 'Rusty' Russel [YU] Yon Uriarte [BZ] Included in Bugzilla System