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Allocate and free a security context when creating and destroying a MAD agent. This context is used for controlling access to PKeys and sending and receiving SMPs. When sending or receiving a MAD check that the agent has permission to access the PKey for the Subnet Prefix of the port. During MAD and snoop agent registration for SMI QPs check that the calling process has permission to access the manage the subnet and register a callback with the LSM to be notified of policy changes. When notificaiton of a policy change occurs recheck permission and set a flag indicating sending and receiving SMPs is allowed. When sending and receiving MADs check that the agent has access to the SMI if it's on an SMI QP. Because security policy can change it's possible permission was allowed when creating the agent, but no longer is. Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Acked-by: Doug Ledford <dledford@redhat.com> [PM: remove the LSM hook init code] Signed-off-by: Paul Moore <paul@paul-moore.com> |
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