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authorDaniel Jurgens <danielj@mellanox.com>2017-05-19 15:48:53 +0300
committerPaul Moore <paul@paul-moore.com>2017-05-23 12:27:11 -0400
commit8f408ab64be6319cb7736cbc6982838dcc362306 (patch)
treefa7169e96ad81ac38d6d78ac03668196dde902c4 /include/linux/security.h
parentd291f1a6523292d916fe1659c67f6db061fbd1b5 (diff)
downloadlwn-8f408ab64be6319cb7736cbc6982838dcc362306.tar.gz
lwn-8f408ab64be6319cb7736cbc6982838dcc362306.zip
selinux lsm IB/core: Implement LSM notification system
Add a generic notificaiton mechanism in the LSM. Interested consumers can register a callback with the LSM and security modules can produce events. Because access to Infiniband QPs are enforced in the setup phase of a connection security should be enforced again if the policy changes. Register infiniband devices for policy change notification and check all QPs on that device when the notification is received. Add a call to the notification mechanism from SELinux when the AVC cache changes or setenforce is cleared. Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Acked-by: James Morris <james.l.morris@oracle.com> Acked-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/linux/security.h')
-rw-r--r--include/linux/security.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h
index 8c73ee073bab..f96e333f6042 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -69,6 +69,10 @@ struct audit_krule;
struct user_namespace;
struct timezone;
+enum lsm_event {
+ LSM_POLICY_CHANGE,
+};
+
/* These functions are in security/commoncap.c */
extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
int cap, int audit);
@@ -164,6 +168,10 @@ struct security_mnt_opts {
int num_mnt_opts;
};
+int call_lsm_notifier(enum lsm_event event, void *data);
+int register_lsm_notifier(struct notifier_block *nb);
+int unregister_lsm_notifier(struct notifier_block *nb);
+
static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
{
opts->mnt_opts = NULL;
@@ -382,6 +390,21 @@ int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
struct security_mnt_opts {
};
+static inline int call_lsm_notifier(enum lsm_event event, void *data)
+{
+ return 0;
+}
+
+static inline int register_lsm_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline int unregister_lsm_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+
static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
{
}