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security: Make inode argument of inode_getsecurity non-const 

Make the inode argument of the inode_getsecurity hook non-const so that
we can use it to revalidate invalid security labels.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2015-12-24 11:09:39 -05:00 committed by Paul Moore
parent a44ca52ca6
commit ea861dfd9e
5 changed files with 6 additions and 6 deletions
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2
include/linux/lsm_hooks.h
View File

@ -1413,7 +1413,7 @@ union security_list_options {
int (*inode_removexattr)(struct dentry *dentry, const char *name);
int (*inode_need_killpriv)(struct dentry *dentry);
int (*inode_killpriv)(struct dentry *dentry);
int (*inode_getsecurity)(const struct inode *inode, const char *name,
int (*inode_getsecurity)(struct inode *inode, const char *name,
void **buffer, bool alloc);
int (*inode_setsecurity)(struct inode *inode, const char *name,
const void *value, size_t size,

4
include/linux/security.h
View File

@ -270,7 +270,7 @@ int security_inode_listxattr(struct dentry *dentry);
int security_inode_removexattr(struct dentry *dentry, const char *name);
int security_inode_need_killpriv(struct dentry *dentry);
int security_inode_killpriv(struct dentry *dentry);
int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
void security_inode_getsecid(const struct inode *inode, u32 *secid);
@ -719,7 +719,7 @@ static inline int security_inode_killpriv(struct dentry *dentry)
return cap_inode_killpriv(dentry);
}
static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
{
return -EOPNOTSUPP;
}

2
security/security.c
View File

@ -697,7 +697,7 @@ int security_inode_killpriv(struct dentry *dentry)
return call_int_hook(inode_killpriv, 0, dentry);
}
int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
{
if (unlikely(IS_PRIVATE(inode)))
return -EOPNOTSUPP;

2
security/selinux/hooks.c
View File

@ -3108,7 +3108,7 @@ static int selinux_inode_removexattr(struct dentry *dentry, const char *name)
*
* Permission check is handled by selinux_inode_getxattr hook.
*/
static int selinux_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
static int selinux_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
{
u32 size;
int error;

2
security/smack/smack_lsm.c
View File

@ -1465,7 +1465,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
*
* Returns the size of the attribute or an error code
*/
static int smack_inode_getsecurity(const struct inode *inode,
static int smack_inode_getsecurity(struct inode *inode,
const char *name, void **buffer,
bool alloc)
{