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| author | David Howells <dhowells@redhat.com> | 2020-02-12 13:58:35 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2020-05-19 15:08:23 +0100 |
| commit | 344fa64ef8f6740e99b32ab788b6e3742d7284b3 (patch) | |
| tree | 44170f4c17e4e98be3bec9972ef6fa6531a52582 /security/security.c | |
| parent | 0858caa419e6cf9d31e734d09d70b34f64443ef6 (diff) | |
| download | linux-344fa64ef8f6740e99b32ab788b6e3742d7284b3.tar.gz linux-344fa64ef8f6740e99b32ab788b6e3742d7284b3.tar.bz2 linux-344fa64ef8f6740e99b32ab788b6e3742d7284b3.zip | |
security: Add a hook for the point of notification insertion
Add a security hook that allows an LSM to rule on whether a notification
message is allowed to be inserted into a particular watch queue.
The hook is given the following information:
(1) The credentials of the triggerer (which may be init_cred for a system
notification, eg. a hardware error).
(2) The credentials of the whoever set the watch.
(3) The notification message.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jamorris@linux.microsoft.com>
cc: Casey Schaufler <casey@schaufler-ca.com>
cc: Stephen Smalley <sds@tycho.nsa.gov>
cc: linux-security-module@vger.kernel.org
Diffstat (limited to 'security/security.c')
| -rw-r--r-- | security/security.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c index 7fed24b9d57e..7d55607120b4 100644 --- a/security/security.c +++ b/security/security.c @@ -2007,6 +2007,15 @@ int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) } EXPORT_SYMBOL(security_inode_getsecctx); +#ifdef CONFIG_WATCH_QUEUE +int security_post_notification(const struct cred *w_cred, + const struct cred *cred, + struct watch_notification *n) +{ + return call_int_hook(post_notification, 0, w_cred, cred, n); +} +#endif /* CONFIG_WATCH_QUEUE */ + #ifdef CONFIG_SECURITY_NETWORK int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |