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2021-01-12selinux: remove unused global variablesOndrej Mosnacek
All of sel_ib_pkey_list, sel_netif_list, sel_netnode_list, and sel_netport_list are declared but never used. Remove them. Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
2020-11-12selinux: Fix error return code in sel_ib_pkey_sid_slow()Chen Zhou
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>
2019-12-18selinux: clean up selinux_enabled/disabled/enforcing_bootStephen Smalley
Rename selinux_enabled to selinux_enabled_boot to make it clear that it only reflects whether SELinux was enabled at boot. Replace the references to it in the MAC_STATUS audit log in sel_write_enforce() with hardcoded "1" values because this code is only reachable if SELinux is enabled and does not change its value, and update the corresponding MAC_STATUS audit log in sel_write_disable(). Stop clearing selinux_enabled in selinux_disable() since it is not used outside of initialization code that runs before selinux_disable() can be reached. Mark both selinux_enabled_boot and selinux_enforcing_boot as __initdata since they are only used in initialization code. Wrap the disabled field in the struct selinux_state with CONFIG_SECURITY_SELINUX_DISABLE since it is only used for runtime disable. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 64 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.894819585@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-01selinux: wrap global selinux stateStephen Smalley
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>
2017-05-23selinux: Add a cache for quicker retreival of PKey SIDsDaniel Jurgens
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>