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-rw-r--r--security/selinux/hooks.c56
1 files changed, 45 insertions, 11 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 33028b3..2a6bbb9 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -12,6 +12,8 @@
* Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
* Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
* <dgoeddel@trustedcs.com>
+ * Copyright (C) 2006 Hewlett-Packard Development Company, L.P.
+ * Paul Moore, <paul.moore@hp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
@@ -74,6 +76,7 @@
#include "objsec.h"
#include "netif.h"
#include "xfrm.h"
+#include "selinux_netlabel.h"
#define XATTR_SELINUX_SUFFIX "selinux"
#define XATTR_NAME_SELINUX XATTR_SECURITY_PREFIX XATTR_SELINUX_SUFFIX
@@ -2395,6 +2398,7 @@ static int selinux_inode_listsecurity(struct inode *inode, char *buffer, size_t
static int selinux_file_permission(struct file *file, int mask)
{
+ int rc;
struct inode *inode = file->f_dentry->d_inode;
if (!mask) {
@@ -2406,8 +2410,12 @@ static int selinux_file_permission(struct file *file, int mask)
if ((file->f_flags & O_APPEND) && (mask & MAY_WRITE))
mask |= MAY_APPEND;
- return file_has_perm(current, file,
- file_mask_to_av(inode->i_mode, mask));
+ rc = file_has_perm(current, file,
+ file_mask_to_av(inode->i_mode, mask));
+ if (rc)
+ return rc;
+
+ return selinux_netlbl_inode_permission(inode, mask);
}
static int selinux_file_alloc_security(struct file *file)
@@ -3058,9 +3066,10 @@ out:
return err;
}
-static void selinux_socket_post_create(struct socket *sock, int family,
- int type, int protocol, int kern)
+static int selinux_socket_post_create(struct socket *sock, int family,
+ int type, int protocol, int kern)
{
+ int err = 0;
struct inode_security_struct *isec;
struct task_security_struct *tsec;
struct sk_security_struct *sksec;
@@ -3077,9 +3086,12 @@ static void selinux_socket_post_create(struct socket *sock, int family,
if (sock->sk) {
sksec = sock->sk->sk_security;
sksec->sid = isec->sid;
+ err = selinux_netlbl_socket_post_create(sock,
+ family,
+ isec->sid);
}
- return;
+ return err;
}
/* Range of port numbers used to automatically bind.
@@ -3260,7 +3272,13 @@ static int selinux_socket_accept(struct socket *sock, struct socket *newsock)
static int selinux_socket_sendmsg(struct socket *sock, struct msghdr *msg,
int size)
{
- return socket_has_perm(current, sock, SOCKET__WRITE);
+ int rc;
+
+ rc = socket_has_perm(current, sock, SOCKET__WRITE);
+ if (rc)
+ return rc;
+
+ return selinux_netlbl_inode_permission(SOCK_INODE(sock), MAY_WRITE);
}
static int selinux_socket_recvmsg(struct socket *sock, struct msghdr *msg,
@@ -3468,6 +3486,10 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
if (err)
goto out;
+ err = selinux_netlbl_sock_rcv_skb(sksec, skb, &ad);
+ if (err)
+ goto out;
+
err = selinux_xfrm_sock_rcv_skb(sksec->sid, skb, &ad);
out:
return err;
@@ -3491,8 +3513,9 @@ static int selinux_socket_getpeersec_stream(struct socket *sock, char __user *op
peer_sid = ssec->peer_sid;
}
else if (isec->sclass == SECCLASS_TCP_SOCKET) {
- peer_sid = selinux_socket_getpeer_stream(sock->sk);
-
+ peer_sid = selinux_netlbl_socket_getpeersec_stream(sock);
+ if (peer_sid == SECSID_NULL)
+ peer_sid = selinux_socket_getpeer_stream(sock->sk);
if (peer_sid == SECSID_NULL) {
err = -ENOPROTOOPT;
goto out;
@@ -3532,8 +3555,11 @@ static int selinux_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *
if (sock && (sock->sk->sk_family == PF_UNIX))
selinux_get_inode_sid(SOCK_INODE(sock), &peer_secid);
- else if (skb)
- peer_secid = selinux_socket_getpeer_dgram(skb);
+ else if (skb) {
+ peer_secid = selinux_netlbl_socket_getpeersec_dgram(skb);
+ if (peer_secid == SECSID_NULL)
+ peer_secid = selinux_socket_getpeer_dgram(skb);
+ }
if (peer_secid == SECSID_NULL)
err = -EINVAL;
@@ -3578,6 +3604,8 @@ void selinux_sock_graft(struct sock* sk, struct socket *parent)
struct sk_security_struct *sksec = sk->sk_security;
isec->sid = sksec->sid;
+
+ selinux_netlbl_sock_graft(sk, parent);
}
int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb,
@@ -3585,9 +3613,15 @@ int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb,
{
struct sk_security_struct *sksec = sk->sk_security;
int err;
- u32 newsid = 0;
+ u32 newsid;
u32 peersid;
+ newsid = selinux_netlbl_inet_conn_request(skb, sksec->sid);
+ if (newsid != SECSID_NULL) {
+ req->secid = newsid;
+ return 0;
+ }
+
err = selinux_xfrm_decode_session(skb, &peersid, 0);
BUG_ON(err);
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