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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2009-10-04 21:49:49 +0900
committerJames Morris <jmorris@namei.org>2009-10-12 10:56:03 +1100
commita27ab9f26b729326778271c1efd895aef4fda1c4 (patch)
tree7a8ff136c359603d79b45850c5fd1cdbd2f3b92f /fs/namespace.c
parent8b8efb44033c7e86b3dc76f825c693ec92ae30e9 (diff)
downloadlwn-a27ab9f26b729326778271c1efd895aef4fda1c4.tar.gz
lwn-a27ab9f26b729326778271c1efd895aef4fda1c4.zip
LSM: Pass original mount flags to security_sb_mount().
This patch allows LSM modules to determine based on original mount flags passed to mount(). A LSM module can get masked mount flags (if needed) by flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT | MS_STRICTATIME); Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'fs/namespace.c')
-rw-r--r--fs/namespace.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index bdc3cb4fd222..7d70d63ceb29 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1921,6 +1921,16 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
if (data_page)
((char *)data_page)[PAGE_SIZE - 1] = 0;
+ /* ... and get the mountpoint */
+ retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);
+ if (retval)
+ return retval;
+
+ retval = security_sb_mount(dev_name, &path,
+ type_page, flags, data_page);
+ if (retval)
+ goto dput_out;
+
/* Default to relatime unless overriden */
if (!(flags & MS_NOATIME))
mnt_flags |= MNT_RELATIME;
@@ -1945,16 +1955,6 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
MS_STRICTATIME);
- /* ... and get the mountpoint */
- retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);
- if (retval)
- return retval;
-
- retval = security_sb_mount(dev_name, &path,
- type_page, flags, data_page);
- if (retval)
- goto dput_out;
-
if (flags & MS_REMOUNT)
retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
data_page);