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SELinux: Convert the netif code to use ifindex values

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The current SELinux netif code requires the caller have a valid net_device
struct pointer to lookup network interface information.  However, we don't
always have a valid net_device pointer so convert the netif code to use
the ifindex values we always have as part of the sk_buff.  This patch also
removes the default message SID from the network interface record, it is
not being used and therefore is "dead code".

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Paul Moore
2008-01-29 08:38:08 -05:00
committed by James Morris
parent 75e22910cf
commit e8bfdb9d0d
6 changed files with 155 additions and 125 deletions
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4
security/selinux/include/netif.h
View File

@@ -7,6 +7,8 @@
* Author: James Morris <jmorris@redhat.com>
*
* Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
* Copyright (C) 2007 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,
@@ -15,7 +17,7 @@
#ifndef _SELINUX_NETIF_H_
#define _SELINUX_NETIF_H_
int sel_netif_sids(struct net_device *dev, u32 *if_sid, u32 *msg_sid);
int sel_netif_sid(int ifindex, u32 *sid);
#endif /* _SELINUX_NETIF_H_ */

5
security/selinux/include/objsec.h
View File

@@ -96,9 +96,8 @@ struct bprm_security_struct {
};
struct netif_security_struct {
struct net_device *dev; /* back pointer */
u32 if_sid; /* SID for this interface */
u32 msg_sid; /* default SID for messages received on this interface */
int ifindex; /* device index */
u32 sid; /* SID for this interface */
};
struct sk_security_struct {

3
security/selinux/include/security.h
View File

@@ -77,8 +77,7 @@ int security_get_user_sids(u32 callsid, char *username,
int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
u32 *out_sid);
int security_netif_sid(char *name, u32 *if_sid,
u32 *msg_sid);
int security_netif_sid(char *name, u32 *if_sid);
int security_node_sid(u16 domain, void *addr, u32 addrlen,
u32 *out_sid);