diff options
author | Mickaël Salaün <mic@linux.microsoft.com> | 2021-04-22 17:41:13 +0200 |
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committer | James Morris <jamorris@linux.microsoft.com> | 2021-04-22 12:22:10 -0700 |
commit | 385975dca53eb41031d0cbd1de318eb1bc5d6bb9 (patch) | |
tree | ad268a1c1db4f879768d396bfeb03389b3b5c8f3 /security/landlock/setup.c | |
parent | ae271c1b14de343b888e77f74f640e3dcbdeb4c9 (diff) |
landlock: Set up the security framework and manage credentials
Process's credentials point to a Landlock domain, which is underneath
implemented with a ruleset. In the following commits, this domain is
used to check and enforce the ptrace and filesystem security policies.
A domain is inherited from a parent to its child the same way a thread
inherits a seccomp policy.
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Mickaël Salaün <mic@linux.microsoft.com>
Reviewed-by: Jann Horn <jannh@google.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210422154123.13086-4-mic@digikod.net
Signed-off-by: James Morris <jamorris@linux.microsoft.com>
Diffstat (limited to 'security/landlock/setup.c')
-rw-r--r-- | security/landlock/setup.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/security/landlock/setup.c b/security/landlock/setup.c new file mode 100644 index 000000000000..8661112fb238 --- /dev/null +++ b/security/landlock/setup.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Landlock LSM - Security framework setup + * + * Copyright © 2016-2020 Mickaël Salaün <mic@digikod.net> + * Copyright © 2018-2020 ANSSI + */ + +#include <linux/init.h> +#include <linux/lsm_hooks.h> + +#include "common.h" +#include "cred.h" +#include "setup.h" + +struct lsm_blob_sizes landlock_blob_sizes __lsm_ro_after_init = { + .lbs_cred = sizeof(struct landlock_cred_security), +}; + +static int __init landlock_init(void) +{ + landlock_add_cred_hooks(); + pr_info("Up and running.\n"); + return 0; +} + +DEFINE_LSM(LANDLOCK_NAME) = { + .name = LANDLOCK_NAME, + .init = landlock_init, + .blobs = &landlock_blob_sizes, +}; |