To check if a received IKE_SA_INIT request is a new request or a
retransmit, charon maintains hashes of the pending IKE_SA_INIT
exchanges.
However, the hash calculation is not reentrant because a single hasher
is used for the whole IKE SA manager. It leads to bogus calculations
under high load and hence dropped messages on responder
(IkeInInvalidSpi incremented).
Don't share a single hasher in the IKE SA manager, create a transient
one whenever a message must be hashed.
Signed-off-by: Christophe Gouault <[email protected]>
Due to an unprotected incrementation, two load-tester initiators occasionally
use the same SPI under high load, and hence generate 2 IPsec SAs with the same
identifier. The responder IPsec stack will refuse to configure the second SA.
Use an atomic incrementation to avoid this race condition.
Signed-off-by: Christophe Gouault <[email protected]>
Due to an unprotected incrementation, two load-tester initiators occasionally
use the same identifier under high load. The responder typically drops one of
the connections.
Use an atomic incrementation to avoid this race condition.
Signed-off-by: Christophe Gouault <[email protected]>
Christophe Gouault