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* selinux: Fix error return code in sel_ib_pkey_sid_slow()Chen Zhou2020-11-181-1/+3
| | | | | | | | | | | | | | | | commit c350f8bea271782e2733419bd2ab9bf4ec2051ef upstream. Fix to return a negative error code from the error handling case instead of 0 in function sel_ib_pkey_sid_slow(), as done elsewhere in this function. Cc: stable@vger.kernel.org Fixes: 409dcf31538a ("selinux: Add a cache for quicker retreival of PKey SIDs") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* selinux: wrap global selinux stateStephen Smalley2018-03-011-1/+2
| | | | | | | | | | | | | | | | | Define a selinux state structure (struct selinux_state) for global SELinux state and pass it explicitly to all security server functions. The public portion of the structure contains state that is used throughout the SELinux code, such as the enforcing mode. The structure also contains a pointer to a selinux_ss structure whose definition is private to the security server and contains security server specific state such as the policy database and SID table. This change should have no effect on SELinux behavior or APIs (userspace or LSM). It merely wraps SELinux state and passes it explicitly as needed. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> [PM: minor fixups needed due to collisions with the SCTP patches] Signed-off-by: Paul Moore <paul@paul-moore.com>
* selinux: Add a cache for quicker retreival of PKey SIDsDaniel Jurgens2017-05-231-0/+245
It is likely that the SID for the same PKey will be requested many times. To reduce the time to modify QPs and process MADs use a cache to store PKey SIDs. This code is heavily based on the "netif" and "netport" concept originally developed by James Morris <jmorris@redhat.com> and Paul Moore <paul@paul-moore.com> (see security/selinux/netif.c and security/selinux/netport.c for more information) Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Acked-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>