SELinux: setup new inode/ipc getsecid hooks

Setup the new inode_getsecid and ipc_getsecid() LSM hooks
for SELinux.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Acked-by: James Morris <jmorris@namei.org>
Reviewed-by: Paul Moore <paul.moore@hp.com>

1 files changed, 17 insertions, 2 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 34f2d46c7984..bfffaa52e0cb 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2792,6 +2792,12 @@ static int selinux_inode_killpriv(struct dentry *dentry)
         return secondary_ops->inode_killpriv(dentry);
 }
 
+static void selinux_inode_getsecid(const struct inode *inode, u32 *secid)
+{
+        struct inode_security_struct *isec = inode->i_security;
+        *secid = isec->sid;
+}
+
 /* file security operations */
 
 static int selinux_revalidate_file_permission(struct file *file, int mask)
@@ -3183,7 +3189,8 @@ static int selinux_task_getsid(struct task_struct *p)
 
 static void selinux_task_getsecid(struct task_struct *p, u32 *secid)
 {
-        selinux_get_task_sid(p, secid);
+        struct task_security_struct *tsec = p->security;
+        *secid = tsec->sid;
 }
 
 static int selinux_task_setgroups(struct group_info *group_info)
@@ -4149,7 +4156,7 @@ static int selinux_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *
                 goto out;
 
         if (sock && family == PF_UNIX)
-                selinux_get_inode_sid(SOCK_INODE(sock), &peer_secid);
+                selinux_inode_getsecid(SOCK_INODE(sock), &peer_secid);
         else if (skb)
                 selinux_skb_peerlbl_sid(skb, family, &peer_secid);
 
@@ -5026,6 +5033,12 @@ static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
         return ipc_has_perm(ipcp, av);
 }
 
+static void selinux_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
+{
+        struct ipc_security_struct *isec = ipcp->security;
+        *secid = isec->sid;
+}
+
 /* module stacking operations */
 static int selinux_register_security (const char *name, struct security_operations *ops)
 {
@@ -5342,6 +5355,7 @@ static struct security_operations selinux_ops = {
         .inode_listsecurity =           selinux_inode_listsecurity,
         .inode_need_killpriv =          selinux_inode_need_killpriv,
         .inode_killpriv =               selinux_inode_killpriv,
+        .inode_getsecid =               selinux_inode_getsecid,
 
         .file_permission =              selinux_file_permission,
         .file_alloc_security =          selinux_file_alloc_security,
@@ -5382,6 +5396,7 @@ static struct security_operations selinux_ops = {
         .task_to_inode =                selinux_task_to_inode,
 
         .ipc_permission =               selinux_ipc_permission,
+        .ipc_getsecid =                 selinux_ipc_getsecid,
 
         .msg_msg_alloc_security =       selinux_msg_msg_alloc_security,
         .msg_msg_free_security =        selinux_msg_msg_free_security,