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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

Browse source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (25 commits)
  security: remove register_security hook
  security: remove dummy module fix
  security: remove dummy module
  security: remove unused sb_get_mnt_opts hook
  LSM/SELinux: show LSM mount options in /proc/mounts
  SELinux: allow fstype unknown to policy to use xattrs if present
  security: fix return of void-valued expressions
  SELinux: use do_each_thread as a proper do/while block
  SELinux: remove unused and shadowed addrlen variable
  SELinux: more user friendly unknown handling printk
  selinux: change handling of invalid classes (Was: Re: 2.6.26-rc5-mm1 selinux whine)
  SELinux: drop load_mutex in security_load_policy
  SELinux: fix off by 1 reference of class_to_string in context_struct_compute_av
  SELinux: open code sidtab lock
  SELinux: open code load_mutex
  SELinux: open code policy_rwlock
  selinux: fix endianness bug in network node address handling
  selinux: simplify ioctl checking
  SELinux: enable processes with mac_admin to get the raw inode contexts
  Security: split proc ptrace checking into read vs. attach
  ...
This commit is contained in:
Linus Torvalds 2008-07-14 13:36:55 -07:00
commit 847106ff62
31 changed files with 1589 additions and 1824 deletions
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8
include/linux/ptrace.h
View file

@ -95,8 +95,12 @@ extern void __ptrace_link(struct task_struct *child,
struct task_struct *new_parent);
extern void __ptrace_unlink(struct task_struct *child);
extern void ptrace_untrace(struct task_struct *child);
extern int ptrace_may_attach(struct task_struct *task);
extern int __ptrace_may_attach(struct task_struct *task);
#define PTRACE_MODE_READ 1
#define PTRACE_MODE_ATTACH 2
/* Returns 0 on success, -errno on denial. */
extern int __ptrace_may_access(struct task_struct *task, unsigned int mode);
/* Returns true on success, false on denial. */
extern bool ptrace_may_access(struct task_struct *task, unsigned int mode);
static inline int ptrace_reparented(struct task_struct *child)
{

49
include/linux/security.h
View file

@ -46,7 +46,8 @@ struct audit_krule;
*/
extern int cap_capable(struct task_struct *tsk, int cap);
extern int cap_settime(struct timespec *ts, struct timezone *tz);
extern int cap_ptrace(struct task_struct *parent, struct task_struct *child);
extern int cap_ptrace(struct task_struct *parent, struct task_struct *child,
unsigned int mode);
extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
extern int cap_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
extern void cap_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
@ -79,6 +80,7 @@ struct xfrm_selector;
struct xfrm_policy;
struct xfrm_state;
struct xfrm_user_sec_ctx;
struct seq_file;
extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
extern int cap_netlink_recv(struct sk_buff *skb, int cap);
@ -289,10 +291,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
* Update module state after a successful pivot.
* @old_path contains the path for the old root.
* @new_path contains the path for the new root.
* @sb_get_mnt_opts:
* Get the security relevant mount options used for a superblock
* @sb the superblock to get security mount options from
* @opts binary data structure containing all lsm mount data
* @sb_set_mnt_opts:
* Set the security relevant mount options used for a superblock
* @sb the superblock to set security mount options for
@ -1170,6 +1168,7 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
* attributes would be changed by the execve.
* @parent contains the task_struct structure for parent process.
* @child contains the task_struct structure for child process.
* @mode contains the PTRACE_MODE flags indicating the form of access.
* Return 0 if permission is granted.
* @capget:
* Get the @effective, @inheritable, and @permitted capability sets for
@ -1240,11 +1239,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
* @pages contains the number of pages.
* Return 0 if permission is granted.
*
* @register_security:
* allow module stacking.
* @name contains the name of the security module being stacked.
* @ops contains a pointer to the struct security_operations of the module to stack.
*
* @secid_to_secctx:
* Convert secid to security context.
* @secid contains the security ID.
@ -1295,7 +1289,8 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
struct security_operations {
char name[SECURITY_NAME_MAX + 1];
int (*ptrace) (struct task_struct *parent, struct task_struct *child);
int (*ptrace) (struct task_struct *parent, struct task_struct *child,
unsigned int mode);
int (*capget) (struct task_struct *target,
kernel_cap_t *effective,
kernel_cap_t *inheritable, kernel_cap_t *permitted);
@ -1328,6 +1323,7 @@ struct security_operations {
void (*sb_free_security) (struct super_block *sb);
int (*sb_copy_data) (char *orig, char *copy);
int (*sb_kern_mount) (struct super_block *sb, void *data);
int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
int (*sb_statfs) (struct dentry *dentry);
int (*sb_mount) (char *dev_name, struct path *path,
char *type, unsigned long flags, void *data);
@ -1343,8 +1339,6 @@ struct security_operations {
struct path *new_path);
void (*sb_post_pivotroot) (struct path *old_path,
struct path *new_path);
int (*sb_get_mnt_opts) (const struct super_block *sb,
struct security_mnt_opts *opts);
int (*sb_set_mnt_opts) (struct super_block *sb,
struct security_mnt_opts *opts);
void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
@ -1472,10 +1466,6 @@ struct security_operations {
int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
int (*netlink_recv) (struct sk_buff *skb, int cap);
/* allow module stacking */
int (*register_security) (const char *name,
struct security_operations *ops);
void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
int (*getprocattr) (struct task_struct *p, char *name, char **value);
@ -1565,7 +1555,6 @@ struct security_operations {
extern int security_init(void);
extern int security_module_enable(struct security_operations *ops);
extern int register_security(struct security_operations *ops);
extern int mod_reg_security(const char *name, struct security_operations *ops);
extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
struct dentry *parent, void *data,
const struct file_operations *fops);
@ -1573,7 +1562,8 @@ extern struct dentry *securityfs_create_dir(const char *name, struct dentry *par
extern void securityfs_remove(struct dentry *dentry);
/* Security operations */
int security_ptrace(struct task_struct *parent, struct task_struct *child);
int security_ptrace(struct task_struct *parent, struct task_struct *child,
unsigned int mode);
int security_capget(struct task_struct *target,
kernel_cap_t *effective,
kernel_cap_t *inheritable,
@ -1606,6 +1596,7 @@ int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
int security_sb_copy_data(char *orig, char *copy);
int security_sb_kern_mount(struct super_block *sb, void *data);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
int security_sb_statfs(struct dentry *dentry);
int security_sb_mount(char *dev_name, struct path *path,
char *type, unsigned long flags, void *data);
@ -1617,8 +1608,6 @@ void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *d
void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
int security_sb_pivotroot(struct path *old_path, struct path *new_path);
void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
int security_sb_get_mnt_opts(const struct super_block *sb,
struct security_mnt_opts *opts);
int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
void security_sb_clone_mnt_opts(const struct super_block *oldsb,
struct super_block *newsb);
@ -1755,9 +1744,11 @@ static inline int security_init(void)
return 0;
}
static inline int security_ptrace(struct task_struct *parent, struct task_struct *child)
static inline int security_ptrace(struct task_struct *parent,
struct task_struct *child,
unsigned int mode)
{
return cap_ptrace(parent, child);
return cap_ptrace(parent, child, mode);
}
static inline int security_capget(struct task_struct *target,
@ -1881,6 +1872,12 @@ static inline int security_sb_kern_mount(struct super_block *sb, void *data)
return 0;
}
static inline int security_sb_show_options(struct seq_file *m,
struct super_block *sb)
{
return 0;
}
static inline int security_sb_statfs(struct dentry *dentry)
{
return 0;
@ -1927,12 +1924,6 @@ static inline int security_sb_pivotroot(struct path *old_path,
static inline void security_sb_post_pivotroot(struct path *old_path,
struct path *new_path)
{ }
static inline int security_sb_get_mnt_opts(const struct super_block *sb,
struct security_mnt_opts *opts)
{
security_init_mnt_opts(opts);
return 0;
}
static inline int security_sb_set_mnt_opts(struct super_block *sb,
struct security_mnt_opts *opts)