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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (38 commits)
  SELinux: Make selinux_kernel_create_files_as() shouldn't just always return 0
  TOMOYO: Protect find_task_by_vpid() with RCU.
  Security: add static to security_ops and default_security_ops variable
  selinux: libsepol: remove dead code in check_avtab_hierarchy_callback()
  TOMOYO: Remove __func__ from tomoyo_is_correct_path/domain
  security: fix a couple of sparse warnings
  TOMOYO: Remove unneeded parameter.
  TOMOYO: Use shorter names.
  TOMOYO: Use enum for index numbers.
  TOMOYO: Add garbage collector.
  TOMOYO: Add refcounter on domain structure.
  TOMOYO: Merge headers.
  TOMOYO: Add refcounter on string data.
  TOMOYO: Reduce lines by using common path for addition and deletion.
  selinux: fix memory leak in sel_make_bools
  TOMOYO: Extract bitfield
  syslog: clean up needless comment
  syslog: use defined constants instead of raw numbers
  syslog: distinguish between /proc/kmsg and syscalls
  selinux: allow MLS->non-MLS and vice versa upon policy reload
  ...

1 files changed, 28 insertions, 21 deletions

diff --git a/security/security.c b/security/security.c
index 122b748d0f4c..687c6fd14bb6 100644
--- a/security/security.c
+++ b/security/security.c
@@ -23,10 +23,12 @@ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
         CONFIG_DEFAULT_SECURITY;
 
 /* things that live in capability.c */
-extern struct security_operations default_security_ops;
 extern void security_fixup_ops(struct security_operations *ops);
 
-struct security_operations *security_ops;       /* Initialized to NULL */
+static struct security_operations *security_ops;
+static struct security_operations default_security_ops = {
+        .name   = "default",
+};
 
 static inline int verify(struct security_operations *ops)
 {
@@ -63,6 +65,11 @@ int __init security_init(void)
         return 0;
 }
 
+void reset_security_ops(void)
+{
+        security_ops = &default_security_ops;
+}
+
 /* Save user chosen LSM */
 static int __init choose_lsm(char *str)
 {
@@ -203,9 +210,9 @@ int security_quota_on(struct dentry *dentry)
         return security_ops->quota_on(dentry);
 }
 
-int security_syslog(int type)
+int security_syslog(int type, bool from_file)
 {
-        return security_ops->syslog(type);
+        return security_ops->syslog(type, from_file);
 }
 
 int security_settime(struct timespec *ts, struct timezone *tz)
@@ -389,42 +396,42 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
 EXPORT_SYMBOL(security_inode_init_security);
 
 #ifdef CONFIG_SECURITY_PATH
-int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
+int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
                         unsigned int dev)
 {
-        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
-        return security_ops->path_mknod(path, dentry, mode, dev);
+        return security_ops->path_mknod(dir, dentry, mode, dev);
 }
 EXPORT_SYMBOL(security_path_mknod);
 
-int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
+int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 {
-        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
-        return security_ops->path_mkdir(path, dentry, mode);
+        return security_ops->path_mkdir(dir, dentry, mode);
 }
 
-int security_path_rmdir(struct path *path, struct dentry *dentry)
+int security_path_rmdir(struct path *dir, struct dentry *dentry)
 {
-        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
-        return security_ops->path_rmdir(path, dentry);
+        return security_ops->path_rmdir(dir, dentry);
 }
 
-int security_path_unlink(struct path *path, struct dentry *dentry)
+int security_path_unlink(struct path *dir, struct dentry *dentry)
 {
-        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
-        return security_ops->path_unlink(path, dentry);
+        return security_ops->path_unlink(dir, dentry);
 }
 
-int security_path_symlink(struct path *path, struct dentry *dentry,
+int security_path_symlink(struct path *dir, struct dentry *dentry,
                           const char *old_name)
 {
-        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
-        return security_ops->path_symlink(path, dentry, old_name);
+        return security_ops->path_symlink(dir, dentry, old_name);
 }
 
 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
@@ -630,14 +637,14 @@ int security_inode_killpriv(struct dentry *dentry)
 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 {
         if (unlikely(IS_PRIVATE(inode)))
-                return 0;
+                return -EOPNOTSUPP;
         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 }
 
 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 {
         if (unlikely(IS_PRIVATE(inode)))
-                return 0;
+                return -EOPNOTSUPP;
         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 }