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authorEric Paris <eparis@redhat.com>2012-01-03 12:25:16 -0500
committerEric Paris <eparis@redhat.com>2012-01-05 18:53:01 -0500
commitfd778461524849afd035679030ae8e8873c72b81 (patch)
tree32a5849c1879413fce0307af304e372eaa8225b4 /security/selinux
parent69f594a38967f4540ce7a29b3fd214e68a8330bd (diff)
downloadop-kernel-dev-fd778461524849afd035679030ae8e8873c72b81.zip
op-kernel-dev-fd778461524849afd035679030ae8e8873c72b81.tar.gz
security: remove the security_netlink_recv hook as it is equivalent to capable()
Once upon a time netlink was not sync and we had to get the effective capabilities from the skb that was being received. Today we instead get the capabilities from the current task. This has rendered the entire purpose of the hook moot as it is now functionally equivalent to the capable() call. Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'security/selinux')
-rw-r--r--security/selinux/hooks.c19
1 files changed, 0 insertions, 19 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 14f94cd..3e37d25 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4713,24 +4713,6 @@ static int selinux_netlink_send(struct sock *sk, struct sk_buff *skb)
return selinux_nlmsg_perm(sk, skb);
}
-static int selinux_netlink_recv(struct sk_buff *skb, int capability)
-{
- int err;
- struct common_audit_data ad;
- u32 sid;
-
- err = cap_netlink_recv(skb, capability);
- if (err)
- return err;
-
- COMMON_AUDIT_DATA_INIT(&ad, CAP);
- ad.u.cap = capability;
-
- security_task_getsecid(current, &sid);
- return avc_has_perm(sid, sid, SECCLASS_CAPABILITY,
- CAP_TO_MASK(capability), &ad);
-}
-
static int ipc_alloc_security(struct task_struct *task,
struct kern_ipc_perm *perm,
u16 sclass)
@@ -5459,7 +5441,6 @@ static struct security_operations selinux_ops = {
.vm_enough_memory = selinux_vm_enough_memory,
.netlink_send = selinux_netlink_send,
- .netlink_recv = selinux_netlink_recv,
.bprm_set_creds = selinux_bprm_set_creds,
.bprm_committing_creds = selinux_bprm_committing_creds,
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