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NetLabel: Add IP address family information to the netlbl_skbuff_getattr() function

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In order to do any sort of IP header inspection of incoming packets we need to
know which address family, AF_INET/AF_INET6/etc., it belongs to and since the
sk_buff structure does not store this information we need to pass along the
address family separate from the packet itself.

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 08:38:04 -05:00
committed by James Morris
parent 16efd45435
commit 75e22910cf
5 changed files with 42 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
security/selinux/netlabel.c
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@@ -144,6 +144,7 @@ void selinux_netlbl_sk_security_clone(struct sk_security_struct *ssec,
/**
* selinux_netlbl_skbuff_getsid - Get the sid of a packet using NetLabel
* @skb: the packet
* @family: protocol family
* @base_sid: the SELinux SID to use as a context for MLS only attributes
* @sid: the SID
*
@@ -153,7 +154,10 @@ void selinux_netlbl_sk_security_clone(struct sk_security_struct *ssec,
* assign to the packet. Returns zero on success, negative values on failure.
*
*/
int selinux_netlbl_skbuff_getsid(struct sk_buff *skb, u32 base_sid, u32 *sid)
int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
u16 family,
u32 base_sid,
u32 *sid)
{
int rc;
struct netlbl_lsm_secattr secattr;
@@ -164,7 +168,7 @@ int selinux_netlbl_skbuff_getsid(struct sk_buff *skb, u32 base_sid, u32 *sid)
}
netlbl_secattr_init(&secattr);
rc = netlbl_skbuff_getattr(skb, &secattr);
rc = netlbl_skbuff_getattr(skb, family, &secattr);
if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE) {
rc = security_netlbl_secattr_to_sid(&secattr, base_sid, sid);
if (rc == 0 &&
@@ -292,6 +296,7 @@ int selinux_netlbl_inode_permission(struct inode *inode, int mask)
* selinux_netlbl_sock_rcv_skb - Do an inbound access check using NetLabel
* @sksec: the sock's sk_security_struct
* @skb: the packet
* @family: protocol family
* @ad: the audit data
*
* Description:
@@ -302,6 +307,7 @@ int selinux_netlbl_inode_permission(struct inode *inode, int mask)
*/
int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
struct sk_buff *skb,
u16 family,
struct avc_audit_data *ad)
{
int rc;
@@ -313,7 +319,7 @@ int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
return 0;
netlbl_secattr_init(&secattr);
rc = netlbl_skbuff_getattr(skb, &secattr);
rc = netlbl_skbuff_getattr(skb, family, &secattr);
if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE) {
rc = security_netlbl_secattr_to_sid(&secattr,
SECINITSID_NETMSG,