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security: Make inode argument of inode_getsecid non-const

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Make the inode argument of the inode_getsecid 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 ea861dfd9e
commit d6335d77a7
9 changed files with 15 additions and 15 deletions
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8
include/linux/audit.h
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@ -137,7 +137,7 @@ extern void __audit_getname(struct filename *name);
extern void __audit_inode(struct filename *name, const struct dentry *dentry,
unsigned int flags);
extern void __audit_file(const struct file *);
extern void __audit_inode_child(const struct inode *parent,
extern void __audit_inode_child(struct inode *parent,
const struct dentry *dentry,
const unsigned char type);
extern void __audit_seccomp(unsigned long syscall, long signr, int code);
@ -202,7 +202,7 @@ static inline void audit_inode_parent_hidden(struct filename *name,
__audit_inode(name, dentry,
AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN);
}
static inline void audit_inode_child(const struct inode *parent,
static inline void audit_inode_child(struct inode *parent,
const struct dentry *dentry,
const unsigned char type) {
if (unlikely(!audit_dummy_context()))
@ -359,7 +359,7 @@ static inline void __audit_inode(struct filename *name,
const struct dentry *dentry,
unsigned int flags)
{ }
static inline void __audit_inode_child(const struct inode *parent,
static inline void __audit_inode_child(struct inode *parent,
const struct dentry *dentry,
const unsigned char type)
{ }
@ -373,7 +373,7 @@ static inline void audit_file(struct file *file)
static inline void audit_inode_parent_hidden(struct filename *name,
const struct dentry *dentry)
{ }
static inline void audit_inode_child(const struct inode *parent,
static inline void audit_inode_child(struct inode *parent,
const struct dentry *dentry,
const unsigned char type)
{ }

2
include/linux/lsm_hooks.h
View File

@ -1420,7 +1420,7 @@ union security_list_options {
int flags);
int (*inode_listsecurity)(struct inode *inode, char *buffer,
size_t buffer_size);
void (*inode_getsecid)(const struct inode *inode, u32 *secid);
void (*inode_getsecid)(struct inode *inode, u32 *secid);
int (*file_permission)(struct file *file, int mask);
int (*file_alloc_security)(struct file *file);

4
include/linux/security.h
View File

@ -273,7 +273,7 @@ int security_inode_killpriv(struct dentry *dentry);
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);
void security_inode_getsecid(struct inode *inode, u32 *secid);
int security_file_permission(struct file *file, int mask);
int security_file_alloc(struct file *file);
void security_file_free(struct file *file);
@ -734,7 +734,7 @@ static inline int security_inode_listsecurity(struct inode *inode, char *buffer,
return 0;
}
static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
{
*secid = 0;
}

2
kernel/audit.c
View File

@ -1722,7 +1722,7 @@ static inline int audit_copy_fcaps(struct audit_names *name,
/* Copy inode data into an audit_names. */
void audit_copy_inode(struct audit_names *name, const struct dentry *dentry,
const struct inode *inode)
struct inode *inode)
{
name->ino = inode->i_ino;
name->dev = inode->i_sb->s_dev;

2
kernel/audit.h
View File

@ -207,7 +207,7 @@ extern u32 audit_ever_enabled;
extern void audit_copy_inode(struct audit_names *name,
const struct dentry *dentry,
const struct inode *inode);
struct inode *inode);
extern void audit_log_cap(struct audit_buffer *ab, char *prefix,
kernel_cap_t *cap);
extern void audit_log_name(struct audit_context *context,

6
kernel/auditsc.c
View File

@ -1754,7 +1754,7 @@ void __audit_inode(struct filename *name, const struct dentry *dentry,
unsigned int flags)
{
struct audit_context *context = current->audit_context;
const struct inode *inode = d_backing_inode(dentry);
struct inode *inode = d_backing_inode(dentry);
struct audit_names *n;
bool parent = flags & AUDIT_INODE_PARENT;
@ -1848,12 +1848,12 @@ void __audit_file(const struct file *file)
* must be hooked prior, in order to capture the target inode during
* unsuccessful attempts.
*/
void __audit_inode_child(const struct inode *parent,
void __audit_inode_child(struct inode *parent,
const struct dentry *dentry,
const unsigned char type)
{
struct audit_context *context = current->audit_context;
const struct inode *inode = d_backing_inode(dentry);
struct inode *inode = d_backing_inode(dentry);
const char *dname = dentry->d_name.name;
struct audit_names *n, *found_parent = NULL, *found_child = NULL;

2
security/security.c
View File

@ -721,7 +721,7 @@ int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer
}
EXPORT_SYMBOL(security_inode_listsecurity);
void security_inode_getsecid(const struct inode *inode, u32 *secid)
void security_inode_getsecid(struct inode *inode, u32 *secid)
{
call_void_hook(inode_getsecid, inode, secid);
}

2
security/selinux/hooks.c
View File

@ -3180,7 +3180,7 @@ static int selinux_inode_listsecurity(struct inode *inode, char *buffer, size_t
return len;
}
static void selinux_inode_getsecid(const struct inode *inode, u32 *secid)
static void selinux_inode_getsecid(struct inode *inode, u32 *secid)
{
struct inode_security_struct *isec = inode->i_security;
*secid = isec->sid;

2
security/smack/smack_lsm.c
View File

@ -1538,7 +1538,7 @@ static int smack_inode_listsecurity(struct inode *inode, char *buffer,
* @inode: inode to extract the info from
* @secid: where result will be saved
*/
static void smack_inode_getsecid(const struct inode *inode, u32 *secid)
static void smack_inode_getsecid(struct inode *inode, u32 *secid)
{
struct inode_smack *isp = inode->i_security;