kernel.git/security/smack/smack.h, branch linux-5.3.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372

2019-06-05T15:37:10Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081036.435762997@linutronix.de Signed-off-by: Greg Kroah-Hartman

Smack: Create smack_rule cache to optimize memory usage

2019-04-02T18:45:41Z

This patch allows for small memory optimization by creating the kmem cache for "struct smack_rule" instead of using kzalloc. For adding new smack rule, kzalloc is used to allocate the memory for "struct smack_rule". kzalloc will always allocate 32 or 64 bytes for 1 structure depending upon the kzalloc cache sizes available in system. Although the size of structure is 20 bytes only, resulting in memory wastage per object in the default pool. For e.g., if there are 20000 rules, then it will save 240KB(20000*12) which is crucial for small memory targets. Signed-off-by: Vishal Goel Signed-off-by: Amit Sahrawat Signed-off-by: Casey Schaufler

Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2019-03-12T21:08:19Z

Pull vfs mount infrastructure updates from Al Viro: "The rest of core infrastructure; no new syscalls in that pile, but the old parts are switched to new infrastructure. At that point conversions of individual filesystems can happen independently; some are done here (afs, cgroup, procfs, etc.), there's also a large series outside of that pile dealing with NFS (quite a bit of option-parsing stuff is getting used there - it's one of the most convoluted filesystems in terms of mount-related logics), but NFS bits are the next cycle fodder. It got seriously simplified since the last cycle; documentation is probably the weakest bit at the moment - I considered dropping the commit introducing Documentation/filesystems/mount_api.txt (cutting the size increase by quarter ;-), but decided that it would be better to fix it up after -rc1 instead. That pile allows to do followup work in independent branches, which should make life much easier for the next cycle. fs/super.c size increase is unpleasant; there's a followup series that allows to shrink it considerably, but I decided to leave that until the next cycle" * 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits) afs: Use fs_context to pass parameters over automount afs: Add fs_context support vfs: Add some logging to the core users of the fs_context log vfs: Implement logging through fs_context vfs: Provide documentation for new mount API vfs: Remove kern_mount_data() hugetlbfs: Convert to fs_context cpuset: Use fs_context kernfs, sysfs, cgroup, intel_rdt: Support fs_context cgroup: store a reference to cgroup_ns into cgroup_fs_context cgroup1_get_tree(): separate "get cgroup_root to use" into a separate helper cgroup_do_mount(): massage calling conventions cgroup: stash cgroup_root reference into cgroup_fs_context cgroup2: switch to option-by-option parsing cgroup1: switch to option-by-option parsing cgroup: take options parsing into ->parse_monolithic() cgroup: fold cgroup1_mount() into cgroup1_get_tree() cgroup: start switching to fs_context ipc: Convert mqueue fs to fs_context proc: Add fs_context support to procfs ...

smack: Implement filesystem context security hooks

2019-02-28T08:29:25Z

Implement filesystem context security hooks for the smack LSM. Signed-off-by: David Howells cc: Casey Schaufler cc: linux-security-module@vger.kernel.org Signed-off-by: Al Viro

LSM: Infrastructure management of the ipc security blob

2019-01-08T21:18:45Z

Move management of the kern_ipc_perm->security and msg_msg->security blobs out of the individual security modules and into the security infrastructure. Instead of allocating the blobs from within the modules the modules tell the infrastructure how much space is required, and the space is allocated there. Signed-off-by: Casey Schaufler Reviewed-by: Kees Cook [kees: adjusted for ordered init series] Signed-off-by: Kees Cook

Smack: Abstract use of ipc security blobs

2019-01-08T21:18:45Z

Don't use the ipc->security pointer directly. Don't use the msg_msg->security pointer directly. Provide helper functions that provides the security blob pointers. Signed-off-by: Casey Schaufler Reviewed-by: Kees Cook Signed-off-by: Kees Cook

LSM: Infrastructure management of the inode security

2019-01-08T21:18:45Z

Move management of the inode->i_security blob out of the individual security modules and into the security infrastructure. Instead of allocating the blobs from within the modules the modules tell the infrastructure how much space is required, and the space is allocated there. Signed-off-by: Casey Schaufler Reviewed-by: Kees Cook [kees: adjusted for ordered init series] Signed-off-by: Kees Cook

Smack: Abstract use of inode security blob

2019-01-08T21:18:45Z

Don't use the inode->i_security pointer directly. Provide a helper function that provides the security blob pointer. Signed-off-by: Casey Schaufler Reviewed-by: Kees Cook Signed-off-by: Kees Cook

LSM: Infrastructure management of the file security

2019-01-08T21:18:44Z

Move management of the file->f_security blob out of the individual security modules and into the infrastructure. The modules no longer allocate or free the data, instead they tell the infrastructure how much space they require. Signed-off-by: Casey Schaufler Reviewed-by: Kees Cook [kees: adjusted for ordered init series] Signed-off-by: Kees Cook

Smack: Abstract use of file security blob

2019-01-08T21:18:44Z

Don't use the file->f_security pointer directly. Provide a helper function that provides the security blob pointer. Signed-off-by: Casey Schaufler Reviewed-by: Kees Cook Signed-off-by: Kees Cook