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authorOndrej Zajicek <santiago@crfreenet.org>2009-04-08 20:15:01 +0200
committerOndrej Zajicek <santiago@crfreenet.org>2009-04-08 20:15:01 +0200
commit024c310b537abc3ddbac3054de71fd759d422824 (patch)
tree159cc669b9d16d2d97102c187320c800e376f710 /proto/static/Makefile
parentb722fe7ebdf7e11f097ed0a85302769de2ac10fb (diff)
downloadbird-024c310b537abc3ddbac3054de71fd759d422824.tar
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Fixes broken cryptographic authentication in OSPF
Cryptographic authentication in OSPF is defective by design - there might be several packets independently sent to the network (for example HELLO, LSUPD and LSACK) where they might be reordered and that causes crypt. sequence number error. That can be workarounded by not incresing sequence number too often. Now we update it only when last packet was sent before at least one second. This can constitute a risk of replay attacks, but RFC supposes something similar (like time in seconds used as CSN).
Diffstat (limited to 'proto/static/Makefile')
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