[PATCH v4 09/23] security: Align inode_setattr hook definition with EVM
From: Roberto Sassu <hidden>
Date: 2023-10-27 08:39:35
Also in:
keyrings, linux-fsdevel, linux-integrity, linux-nfs, lkml, selinux
Subsystem:
security subsystem, selinux security module, smack security module, the rest · Maintainers:
Paul Moore, James Morris, "Serge E. Hallyn", Stephen Smalley, Casey Schaufler, Linus Torvalds
From: Roberto Sassu <roberto.sassu@huawei.com> Add the idmap parameter to the definition, so that evm_inode_setattr() can be registered as this hook implementation. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> --- include/linux/lsm_hook_defs.h | 3 ++- security/security.c | 2 +- security/selinux/hooks.c | 3 ++- security/smack/smack_lsm.c | 4 +++- 4 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 97233e6e2091..751b084185ac 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h@@ -135,7 +135,8 @@ LSM_HOOK(int, 0, inode_readlink, struct dentry *dentry) LSM_HOOK(int, 0, inode_follow_link, struct dentry *dentry, struct inode *inode, bool rcu) LSM_HOOK(int, 0, inode_permission, struct inode *inode, int mask) -LSM_HOOK(int, 0, inode_setattr, struct dentry *dentry, struct iattr *attr) +LSM_HOOK(int, 0, inode_setattr, struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *attr) LSM_HOOK(int, 0, inode_getattr, const struct path *path) LSM_HOOK(int, 0, inode_setxattr, struct mnt_idmap *idmap, struct dentry *dentry, const char *name, const void *value,
diff --git a/security/security.c b/security/security.c
index b2dd521a206d..da10da5fd79f 100644
--- a/security/security.c
+++ b/security/security.c@@ -2208,7 +2208,7 @@ int security_inode_setattr(struct mnt_idmap *idmap, if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) return 0; - ret = call_int_hook(inode_setattr, 0, dentry, attr); + ret = call_int_hook(inode_setattr, 0, idmap, dentry, attr); if (ret) return ret; return evm_inode_setattr(idmap, dentry, attr);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 8cf8850c69bd..134c1b34b1f6 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c@@ -3128,7 +3128,8 @@ static int selinux_inode_permission(struct inode *inode, int mask) return rc; } -static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr) +static int selinux_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *iattr) { const struct cred *cred = current_cred(); struct inode *inode = d_backing_inode(dentry);
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 12160d060cc1..78a777c2f1a6 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c@@ -1232,12 +1232,14 @@ static int smack_inode_permission(struct inode *inode, int mask) /** * smack_inode_setattr - Smack check for setting attributes + * @idmap: idmap of the mount * @dentry: the object * @iattr: for the force flag * * Returns 0 if access is permitted, an error code otherwise */ -static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr) +static int smack_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *iattr) { struct smk_audit_info ad; int rc;
--
2.34.1