CVS log for kame/kame/sys/netinet6/route6.c

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Keyword substitution: kv
Default branch: MAIN

ANSIfy, to reduce diffs with *BSDs.
based on diff from dunceor at gmail.com.
XXX not tested yet, sorry, we need to ressurect buildlab configs.

random thoughts:
- IGMPv3 support needs a serious cleanup.  argument passing is horrible, style
  does not meet style(9) at all.  i'm afraid there could be a lot of bugs.
- DCCP/SCTP/NAT-PT need someone to maintain them, otherwise we should drop
  them at once.
- we should pick a platform (one of *BSD) and try to get KAME tree in sync
  with more recent version of *BSD.  otherwise, KAME tree gets more and more
  out-of-date.

typo: s/baned/banned/

comment on the ICMPv6 error return on rthdr0.  based on chat w/ jinmei

oops

disable type 0 routing header (for now - we'll make sure to enable it,
hopefully soon - but do not hold your breath).

http://www.secdev.org/conf/IPv6_RH_security-csw07.pdf

corrected an RFC number in a comment line.

removed COMPAT_RFC1883
COMPAT_RFC1883 was used to keep the old strict routing code
defined in rfc1883, which is not used any more.

discard invalid rt type=2

revised scope-related interfaces, clarifying the relationship between
the kernel-internal form and the public sockaddr_in6 form.

New Mobile IPv6 code which also supports NEMO.

removed comments about the "conflict" between a sanity check and the
standard algorithm of processing a routing header.

s/RFC2462/RFC2460/ about the removal of the strict/loose bitmap

reverted the previous changes and described why that change is unnecessary

a Type-0 Routing-header is skipped if Segments Left is set to zero, regardless of the Hdr-Ext-Len value. (RFC2460 section 4.4)

remove support for freebsd[23], simplify #ifdef

restructure of header files based on draft-ietf-mip6-mipext-advapi-00.

missing in6_clearscope() for routing header type 1

MIP6 fix regarding to back to embeded style.
some parts worked, some not yet...

move away from in6_{get,set}pktaddrs framework, go back to embedded
scopeid in s6_addr16[1].  this is to make *BSD merge easier.

TODO: check missing/removed scope border code
TODO: variable name re-sync w/ *BSD platforms
TODO: fix non-netbsd platforms
TODO: fix mip6, sctp, dccp, mldv2

- changed TAILQ to LIST to manage the hif list since it need not to be.

use "goto bad"

Make it compilable on NetBSD as a correspondent node

- restructured mip6 code.
  divided cn/ha/mn part to separate files.  this makes it easier to
  merge a paticular part (ex. CN) to original BSD or to integrate
  a paticular part (ex. HA) to routers.

changed 2nd and 3rd argument of ip6_getpktaddrs() from sockaddr_in6 **
to sockaddr_in6 * in order to avoid sharing a pointer in an mbuf.

changes for *bsd-specific files will follow.

looks okay for freebsd4.  will compilation check for others.

transition from m_aux framework to m_tag framework.
XXX freebsd4/bsdi3 won't compile for a while

MIP6: sanity check for care-of address and
      check mip6_prefix_list before process_movement

- comment

KNF - return is not a function.

added a stat structure for MIP6.

whitespace cleanup

- the first step for mip6 id17 support.
  this commit is for the KAME mip6 developpers.  do not try to use this.

corrected an incorrect substitution for ip6aux.

make mip6 code scope aware.
need more work...

- always included route.h from *.c files below
- stopped defining route_in6{} for bsdi4 regardless of local configuration
  options

totally revised IPv6 scoped address architecture in the kernel.
- sticked to use sockaddr_in6, not in6_addr, as much as possible.
- did not refer to ip6_src/ip6_dst (which may have ambiguity on scope zones),
  but used full sockaddr_in6 structures attached to the packet.
- replaced special cases for link-local addresses with code that used
  generic functions such as in6_addr2zoneid().
- additional cleanups mainly for scoped address handling.

made the source routing code more scope-aware:
  - it now considers all type of scopes.  special case for link-local addresses
    is removed
  - it conforms to the forwarding rule described in the scoping arch draft
  - it does not embed zone ID in the packet header.  instead it uses full
    sockaddrs attached as m_aux

remove opt_inet6.h,mip6_var.h&etc. includes from if_hif.h&mip6.h

remove unused variable.

route optimize logic change.
check rthdr of incoming packet.  if the packet don't have a rthdr
for route optimization, send a BU for route optimization.

typo

MIP6 removed.
Ericsson's code is provided as a patch to the plain (without MIP6)
KAME source after this point.

mbuf leak

reject invalid home-addresses(multicast, linklocal, v4mapped, loopback, ...)
reject home-address option before rthdr

s/register//

cut and paste bug.  from: francis dupont

remove COMPAT_RFC2292, we do not intend to provide source code RFC2292 compat yet

add comment on COMPAT_RFC2292 case.  i do not think it is necessary.

made the code non-2292bis friendly

more sys/queue.h

always use new (large) route{} instead of route_in6 if NEW_STRUCT_ROUTE
is specified.

indent and comment

revise comment on ip6e_len

add comment on max segleft we support - should be fixed

INET6 define is moved from opt_inet.h to opt_inet6.h in FreeBSD3,
I believe this helps to share codes with FreeBSD4 easily.

nuke spaces end of line.

add $KAME$

sync with latest mip6 from ericsson.
encaptab (ip_encap.[ch]) is now visible to the outside, read-only.

ericsson guys: look at line marked with "BUG ALERT" in mip6_md.c.
we have missing curly brace, or wrong indentation there.

compiled on: freebsd2 (will do on other platforms)

ericsson mobile-ip6.  compiled on netbsd but not tested.

avoid direct reference to netinet6/{ip6,icmp6,in6}.h.

be paranoid about malicious use of v4 mapped addr on v6 packet.
(this can possibly be used to bypass security checks,
i.e. use ::ffff:127.0.0.1 as src to pretend to be from local node)

this includes additional checks in ip6 layer (ip6_input and ip6_rthdr0).
the portion can be controversial.

removed the ip6r0_addr and ip6r0_slmap members from ip6_rthdr0{}
according to rfc2292bis-01.

don't include netinet6/in6.h directly, they should be
included via netinet/in.h

remove extra sanity checks in ip6_saveoptions() added on the previous commit,
add some comment about it.
add cases for m_pulldown tests.

sync w/ snap branch
(added a sanity check in IP6_EXTHDR_CHECK)

- increment per-interface statistics against a bogus packet in IP6_EXTHDR_CHECK
- added an include file to route6.c according to the above change

KAME/NetBSD 1.4, as of 1999/7/30.
for unified-KAME code.
no cross-OS portability is introduced.
works fine on NetBSD as no change from KAME/NetBSD.

Initial revision