summaryrefslogtreecommitdiff
path: root/security/security.c
diff options
context:
space:
mode:
authorChristian Brauner <brauner@kernel.org>2023-01-13 14:49:23 +0300
committerChristian Brauner (Microsoft) <brauner@kernel.org>2023-01-19 11:24:28 +0300
commit39f60c1ccee72caa0104145b5dbf5d37cce1ea39 (patch)
tree2c445a4d7a0f2b577fa280e97ec129be26b5e32a /security/security.c
parent4609e1f18e19c3b302e1eb4858334bca1532f780 (diff)
downloadlinux-39f60c1ccee72caa0104145b5dbf5d37cce1ea39.tar.xz
fs: port xattr to mnt_idmap
Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'security/security.c')
-rw-r--r--security/security.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/security/security.c b/security/security.c
index df7182fb1291..7e7a12142854 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1375,7 +1375,7 @@ int security_inode_getattr(const struct path *path)
return call_int_hook(inode_getattr, 0, path);
}
-int security_inode_setxattr(struct user_namespace *mnt_userns,
+int security_inode_setxattr(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
@@ -1387,7 +1387,7 @@ int security_inode_setxattr(struct user_namespace *mnt_userns,
* SELinux and Smack integrate the cap call,
* so assume that all LSMs supplying this call do so.
*/
- ret = call_int_hook(inode_setxattr, 1, mnt_userns, dentry, name, value,
+ ret = call_int_hook(inode_setxattr, 1, idmap, dentry, name, value,
size, flags);
if (ret == 1)
@@ -1397,7 +1397,7 @@ int security_inode_setxattr(struct user_namespace *mnt_userns,
ret = ima_inode_setxattr(dentry, name, value, size);
if (ret)
return ret;
- return evm_inode_setxattr(mnt_userns, dentry, name, value, size);
+ return evm_inode_setxattr(idmap, dentry, name, value, size);
}
int security_inode_set_acl(struct user_namespace *mnt_userns,
@@ -1465,7 +1465,7 @@ int security_inode_listxattr(struct dentry *dentry)
return call_int_hook(inode_listxattr, 0, dentry);
}
-int security_inode_removexattr(struct user_namespace *mnt_userns,
+int security_inode_removexattr(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name)
{
int ret;
@@ -1476,15 +1476,15 @@ int security_inode_removexattr(struct user_namespace *mnt_userns,
* SELinux and Smack integrate the cap call,
* so assume that all LSMs supplying this call do so.
*/
- ret = call_int_hook(inode_removexattr, 1, mnt_userns, dentry, name);
+ ret = call_int_hook(inode_removexattr, 1, idmap, dentry, name);
if (ret == 1)
- ret = cap_inode_removexattr(mnt_userns, dentry, name);
+ ret = cap_inode_removexattr(idmap, dentry, name);
if (ret)
return ret;
ret = ima_inode_removexattr(dentry, name);
if (ret)
return ret;
- return evm_inode_removexattr(mnt_userns, dentry, name);
+ return evm_inode_removexattr(idmap, dentry, name);
}
int security_inode_need_killpriv(struct dentry *dentry)
@@ -1492,10 +1492,10 @@ int security_inode_need_killpriv(struct dentry *dentry)
return call_int_hook(inode_need_killpriv, 0, dentry);
}
-int security_inode_killpriv(struct user_namespace *mnt_userns,
+int security_inode_killpriv(struct mnt_idmap *idmap,
struct dentry *dentry)
{
- return call_int_hook(inode_killpriv, 0, mnt_userns, dentry);
+ return call_int_hook(inode_killpriv, 0, idmap, dentry);
}
int security_inode_getsecurity(struct mnt_idmap *idmap,