Hi,
On Wed, Dec 19, 2007 at 05:11:34PM +0300, Pavel Emelyanov wrote:
Hi
The pneigh_lookup/delete silently concerns, that the
key_len of the table is more that 4 bytes. Look:
u32 hash_val = *(u32 *)(pkey + key_len - 4);
The hash_val for the proxy neighbor entry is four last bytes
from the pkey.
But the dn_neigh_tables' key_len is sizeof(__le16), that is 2,
so setting (via netlink) the proxy neighbor entry for decnet
will cause this entry to reside in arbitrary hash chain.
Is this too bad for decnet?
Thanks,
Pavel
The pneigh code is never used in DECnet, we only use the normal
part of the neigh code where the hash function was changed so that
it can be defined for each protocol (and thus doesn't suffer from
this problem)
Steve.
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