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authorJames Carter <jwcart2@tycho.nsa.gov>2007-04-04 16:18:39 -0400
committerJames Morris <jmorris@namei.org>2007-04-26 01:36:09 -0400
commit6174eafce3a38114adc6058e2872434c53feae87 (patch)
tree8e97a2f10da78d6dc3a628109829c91c67584195 /security
parentf0ee2e467ffa68c3122128b704c1540ee294b748 (diff)
downloadlinux-2.6.34-ux500-6174eafce3a38114adc6058e2872434c53feae87.tar.gz
selinux: explicitly number all selinuxfs inodes
Explicitly number all selinuxfs inodes to prevent a conflict between inodes numbered using last_ino when created with new_inode() and those labeled explicitly. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov> Acked-by: Eric Paris <eparis@parisplace.org> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/selinuxfs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index e24235c59dd..1a786db50bd 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -100,8 +100,11 @@ enum sel_inos {
SEL_MEMBER, /* compute polyinstantiation membership decision */
SEL_CHECKREQPROT, /* check requested protection, not kernel-applied one */
SEL_COMPAT_NET, /* whether to use old compat network packet controls */
+ SEL_INO_NEXT, /* The next inode number to use */
};
+static unsigned long sel_last_ino = SEL_INO_NEXT - 1;
+
#define SEL_INITCON_INO_OFFSET 0x01000000
#define SEL_INO_MASK 0x00ffffff
@@ -1237,6 +1240,7 @@ static int sel_make_avc_files(struct dentry *dir)
goto out;
}
inode->i_fop = files[i].ops;
+ inode->i_ino = ++sel_last_ino;
d_add(dentry, inode);
}
out:
@@ -1304,6 +1308,7 @@ static int sel_make_dir(struct inode *dir, struct dentry *dentry)
}
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
+ inode->i_ino = ++sel_last_ino;
/* directory inodes start off with i_nlink == 2 (for "." entry) */
inc_nlink(inode);
d_add(dentry, inode);
@@ -1366,6 +1371,7 @@ static int sel_fill_super(struct super_block * sb, void * data, int silent)
ret = -ENOMEM;
goto err;
}
+ inode->i_ino = ++sel_last_ino;
isec = (struct inode_security_struct*)inode->i_security;
isec->sid = SECINITSID_DEVNULL;
isec->sclass = SECCLASS_CHR_FILE;