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Subject[PATCH v6 15/20] evm: add evm_inode_post_init call in xfs
Date
After creating the initial LSM security extended attribute, call
evm_inode_post_init_security() to create the 'security.evm'
extended attribute.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
---
fs/xfs/linux-2.6/xfs_iops.c | 27 +++++++++++++++++++--------
1 files changed, 19 insertions(+), 8 deletions(-)
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index dd21784..01b354d 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -46,6 +46,7 @@
#include <linux/namei.h>
#include <linux/posix_acl.h>
#include <linux/security.h>
+#include <linux/evm.h>
#include <linux/fiemap.h>
#include <linux/slab.h>

@@ -106,23 +107,33 @@ xfs_init_security(
const struct qstr *qstr)
{
struct xfs_inode *ip = XFS_I(inode);
- size_t length;
- void *value;
- unsigned char *name;
+ struct xattr lsm_xattr;
+ struct xattr evm_xattr;
int error;

- error = security_inode_init_security(inode, dir, qstr, (char **)&name,
- &value, &length);
+ error = security_inode_init_security(inode, dir, qstr, &lsm_xattr.name,
+ &lsm_xattr.value,
+ &lsm_xattr.value_len);
if (error) {
if (error == -EOPNOTSUPP)
return 0;
return -error;
}

- error = xfs_attr_set(ip, name, value, length, ATTR_SECURE);
+ error = xfs_attr_set(ip, lsm_xattr.name, lsm_xattr.value,
+ lsm_xattr.value_len, ATTR_SECURE);
+ if (error)
+ goto out;

- kfree(name);
- kfree(value);
+ error = evm_inode_post_init_security(inode, &lsm_xattr, &evm_xattr);
+ if (error)
+ goto out;
+ error = xfs_attr_set(ip, evm_xattr.name, evm_xattr.value,
+ evm_xattr.value_len, ATTR_SECURE);
+ kfree(evm_xattr.value);
+out:
+ kfree(lsm_xattr.name);
+ kfree(lsm_xattr.value);
return error;
}

--
1.7.3.4


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