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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2011-06-26 23:15:31 +0900
committerJames Morris <jmorris@namei.org>2011-06-29 09:31:19 +1000
commit7c75964f432d14062d8eccfc916aa290f56b5aab (patch)
tree8aecdb96f9f079dd36735c3acccb79f3d10d6559 /security/tomoyo/tomoyo.c
parent1252cc3b232e582e887623dc5f70979418caaaa2 (diff)
downloadvexpress-lsk-7c75964f432d14062d8eccfc916aa290f56b5aab.tar.gz
TOMOYO: Cleanup part 1.
In order to synchronize with TOMOYO 1.8's syntax, (1) Remove special handling for allow_read/write permission. (2) Replace deny_rewrite/allow_rewrite permission with allow_append permission. (3) Remove file_pattern keyword. (4) Remove allow_read permission from exception policy. (5) Allow creating domains in enforcing mode without calling supervisor. (6) Add permission check for opening directory for reading. (7) Add permission check for stat() operation. (8) Make "cat < /sys/kernel/security/tomoyo/self_domain" behave as if "cat /sys/kernel/security/tomoyo/self_domain". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/tomoyo.c')
-rw-r--r--security/tomoyo/tomoyo.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 95d3f957223..2615c7d4396 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -93,6 +93,12 @@ static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
return tomoyo_check_open_permission(domain, &bprm->file->f_path, O_RDONLY);
}
+static int tomoyo_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
+{
+ struct path path = { mnt, dentry };
+ return tomoyo_path_perm(TOMOYO_TYPE_GETATTR, &path);
+}
+
static int tomoyo_path_truncate(struct path *path)
{
return tomoyo_path_perm(TOMOYO_TYPE_TRUNCATE, path);
@@ -176,9 +182,10 @@ static int tomoyo_path_rename(struct path *old_parent,
static int tomoyo_file_fcntl(struct file *file, unsigned int cmd,
unsigned long arg)
{
- if (cmd == F_SETFL && ((arg ^ file->f_flags) & O_APPEND))
- return tomoyo_path_perm(TOMOYO_TYPE_REWRITE, &file->f_path);
- return 0;
+ if (!(cmd == F_SETFL && ((arg ^ file->f_flags) & O_APPEND)))
+ return 0;
+ return tomoyo_check_open_permission(tomoyo_domain(), &file->f_path,
+ O_WRONLY | (arg & O_APPEND));
}
static int tomoyo_dentry_open(struct file *f, const struct cred *cred)
@@ -258,6 +265,7 @@ static struct security_operations tomoyo_security_ops = {
.path_mknod = tomoyo_path_mknod,
.path_link = tomoyo_path_link,
.path_rename = tomoyo_path_rename,
+ .inode_getattr = tomoyo_inode_getattr,
.file_ioctl = tomoyo_file_ioctl,
.path_chmod = tomoyo_path_chmod,
.path_chown = tomoyo_path_chown,