[IPV6]: Restore semantics of Routing Header processing.

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The "fix" for emerging security threat was overkill and it broke
basic semantic of IPv6 routing header processing.  We should assume
RT0 (or even RT2, depends on configuration) as "unknown" RH type so
that we
- silently ignore the routing header if segleft == 0
- send ICMPv6 Parameter Problem message back to the sender,
  otherwise.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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YOSHIFUJI Hideaki 2007-07-10 22:47:58 -07:00 • committed by David S. Miller

parent c9726d6890

commit c382bb9d32

1 changed files with 16 additions and 31 deletions

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net/ipv6/exthdrs.c

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