Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-28 07:01:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

[NetLabel]: uninline selinux_netlbl_inode_permission()

Browse Source 
Uninline the selinux_netlbl_inode_permission() at the request of
Andrew Morton.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paul Moore 2006-08-29 17:55:38 -07:00 committed by David S. Miller
parent 7b3bbb926f
commit e448e93130
2 changed files with 25 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
security/selinux/include/selinux_netlabel.h
View File

@ -43,40 +43,7 @@ void selinux_netlbl_sk_security_init(struct sk_security_struct *ssec,
int family); int family);
void selinux_netlbl_sk_clone_security(struct sk_security_struct *ssec, void selinux_netlbl_sk_clone_security(struct sk_security_struct *ssec,
struct sk_security_struct *newssec); struct sk_security_struct *newssec);
int selinux_netlbl_inode_permission(struct inode *inode, int mask);
int __selinux_netlbl_inode_permission(struct inode *inode, int mask);
/**
* selinux_netlbl_inode_permission - Verify the socket is NetLabel labeled
* @inode: the file descriptor's inode
* @mask: the permission mask
*
* Description:
* Looks at a file's inode and if it is marked as a socket protected by
* NetLabel then verify that the socket has been labeled, if not try to label
* the socket now with the inode's SID. Returns zero on success, negative
* values on failure.
*
*/
static inline int selinux_netlbl_inode_permission(struct inode *inode,
int mask)
{
int rc = 0;
struct inode_security_struct *isec;
struct sk_security_struct *sksec;
if (!S_ISSOCK(inode->i_mode))
return 0;
isec = inode->i_security;
sksec = SOCKET_I(inode)->sk->sk_security;
down(&isec->sem);
if (unlikely(sksec->nlbl_state == NLBL_REQUIRE &&
(mask & (MAY_WRITE | MAY_APPEND))))
rc = __selinux_netlbl_inode_permission(inode, mask);
up(&isec->sem);
return rc;
}
#else #else
static inline void selinux_netlbl_cache_invalidate(void) static inline void selinux_netlbl_cache_invalidate(void)
{ {

33
security/selinux/ss/services.c
View File

@ -2544,24 +2544,39 @@ u32 selinux_netlbl_inet_conn_request(struct sk_buff *skb, u32 sock_sid)
} }
/** /**
* __selinux_netlbl_inode_permission - Label a socket using NetLabel * selinux_netlbl_inode_permission - Verify the socket is NetLabel labeled
* @inode: the file descriptor's inode * @inode: the file descriptor's inode
* @mask: the permission mask * @mask: the permission mask
* *
* Description: * Description:
* Try to label a socket with the inode's SID using NetLabel. Returns zero on * Looks at a file's inode and if it is marked as a socket protected by
* success, negative values on failure. * NetLabel then verify that the socket has been labeled, if not try to label
* the socket now with the inode's SID. Returns zero on success, negative
* values on failure.
* *
*/ */
int __selinux_netlbl_inode_permission(struct inode *inode, int mask) int selinux_netlbl_inode_permission(struct inode *inode, int mask)
{ {
int rc; int rc;
struct socket *sock = SOCKET_I(inode); struct inode_security_struct *isec;
struct sk_security_struct *sksec = sock->sk->sk_security; struct sk_security_struct *sksec;
struct socket *sock;
lock_sock(sock->sk); if (!S_ISSOCK(inode->i_mode))
rc = selinux_netlbl_socket_setsid(sock, sksec->sid); return 0;
release_sock(sock->sk);
sock = SOCKET_I(inode);
isec = inode->i_security;
sksec = sock->sk->sk_security;
down(&isec->sem);
if (unlikely(sksec->nlbl_state == NLBL_REQUIRE &&
(mask & (MAY_WRITE | MAY_APPEND)))) {
lock_sock(sock->sk);
rc = selinux_netlbl_socket_setsid(sock, sksec->sid);
release_sock(sock->sk);
} else
rc = 0;
up(&isec->sem);
return rc; return rc;
} }