pfil information, instead, struct protosw now contains a structure
which caontains list heads, etc. The per-protosw pfil struct is passed
to pfil_hook_get(), along with an in/out flag to get the head of the
relevant filter list. This has been done for only IPv4 and IPv6, at
present, with these patches only enabling filtering for IPPROTO_IP and
IPPROTO_IPV6, although it is possible to have tcp/udp, etc, dedicated
filters now also. The ipfilter code has been updated to only filter
IPv4 packets - next major release of ipfilter is required for ipv6.
- there's no match against addresses on IFF_UP interface,
send icmp unreach if I'm router. drop it if I'm host.
Revised version of PR: 9387 from nrt@iij.ad.jp. Discussed with thorpej+nrt.
Note, we're reusing the previously unused slot for "MTU discovery" (which
was moved to the "net.inet.ip" branch of the sysctl tree quite some time
ago).
- Filter out multicast destinations explicitly for every incoming packet,
not just SYNs. Previously, non-SYN multicast destination would be
filtered out as a side effect of PCB lookup. Remove now redundant
similar checks in the dropwithreset case and in syn_cache_add().
- Defer the TCP checksum until we know that we want to process the
packet (i.e. have a non-CLOSED connection or a listen socket).
increasing both of them will result in negative number on udp
"delivered" stat on netstat(8), since netstat computes number of delivered
packet by subtracting them from number of inbound packets.
- a packet is delivered to an address X,
- and the address X is configured on my !IFF_UP interface
- and ipforwarding=1
NetBSD PR: 9387
From: nrt@iij.ad.jp
RFC2553/2292-compliant header file path, now the following headers are
forbidden:
netinet6/ip6.h
netinet6/icmp6.h
netinet6/in6.h
if you want netinet6/{ip6,icmp6}.h, use netinet/{ip6,icmp6}.h.
if you want netinet6/in6.h, you just need to include netinet/in.h.
it pulls it in.
(we may need to integrate them into netinet/in.h, but for cross-BSD code
sharing i'd like to keep it like this for now)
(netinet6/{ip6,icmp6}.h is non-standard path - these files should go away)
it was not possible to use cvsmove in this case.
when you try to look at history, chase it toward netinet6/{ip6,icmp6}.h.
it is not supposed to work.
logging fix: add "\n" to some of log() in in6_prefix.c.
improve in6_ifdetach(). now almost all structure depend on ifnet
will be cleared up.
possible loose ends:
- cached route_in6 in static varaiables needs to be cleared as well
- there are ifaddr manipulation without reference counting,
which should be fixed
we still see panics after card removal, though... not sure what is left.
(sync with kame)
although this version has been changed somewhat:
- reference counting on ifaddrs isn't as complete as Bill's original
work was. This is hard to get right, and we should attack one
protocol at a time.
- This doesn't do reference counting or dynamic allocation of ifnets yet.
- This version introduces a new PRU -- PRU_PURGEADDR, which is used to
purge an ifaddr from a protocol. The old method Bill used didn't work
on all protocols, and it only worked on some because it was Very Lucky.
This mostly works ... i.e. works for my USB Ethernet, except for a dangling
ifaddr reference left by the IPv6 code; have not yet tracked this down.
- interop issues in ipcomp is fixed
- padding type (after ESP) is configurable
- key database memory management (need more fixes)
- policy specification is revisited
XXX m->m_pkthdr.rcvif is still overloaded - hope to fix it soon
code, from netbsd-current repository.
#ifdef'ed version is always available from ftp.kame.net.
XXX please do not make too many diff-unfriendly changes, we'll need to take
bunch of diffs on upgrade...
AF_INET6 wildcard listening socket. heavily documented in ip6(4).
net.inet6.ip6.bindv6only defines default value. default is 1.
"options INET6_BINDV6ONLY" removes any code fragment that supports
IPV6_BINDV6ONLY == 0 case (not defopt'ed as use of this is rare).
Patch from Darren send to the mailing list after he released 3.3.6 and
did a bad job with using the wrong way to update the NetBSD version
of ipfilter.
due to massive changes in KAME side.
- IPv6 output goes through nd6_output
- faith can capture IPv4 packets as well - you can run IPv4-to-IPv6 translator
using heavily modified DNS servers
- per-interface statistics (required for IPv6 MIB)
- interface autoconfig is revisited
- udp input handling has a big change for mapped address support.
- introduce in4_cksum() for non-overwriting checksumming
- introduce m_pulldown()
- neighbor discovery cleanups/improvements
- netinet/in.h strictly conforms to RFC2553 (no extra defs visible to userland)
- IFA_STATS is fixed a bit (not tested)
- and more more more.
TODO:
- cleanup os-independency #ifdef
- avoid rcvif dual use (for IPsec) to help ifdetach
(sorry for jumbo commit, I can't separate this any more...)
(if the definition is like in rfc2553) they are not supposed to be used.
XXX i'm trying to change rfc2553 sockaddr_storage definition to include
"ss_len" and "ss_family". see ipngwg. situation might change soon.
just for reference purposes.
This commit includes 1.4 -> 1.4.1 sync for kame branch.
The branch does not compile at all (due to the lack of ALTQ and some other
source code). Please do not try to modify the branch, this is just for
referenre purposes.
synchronization to latest KAME will take place on HEAD branch soon.
itojun