[PATCH v10 08/25] evm: Align evm_inode_post_setxattr() definition with LSM infrastructure
From: Roberto Sassu <hidden>
Date: 2024-02-15 10:33:43
Also in:
keyrings, linux-fsdevel, linux-integrity, linux-kselftest, linux-nfs, lkml, selinux
Subsystem:
extended verification module (evm), integrity measurement architecture (ima), security subsystem, the rest · Maintainers:
Mimi Zohar, Roberto Sassu, Dmitry Kasatkin, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds
From: Roberto Sassu <roberto.sassu@huawei.com> Change evm_inode_post_setxattr() definition, so that it can be registered as implementation of the inode_post_setxattr hook. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Reviewed-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: Paul Moore <paul@paul-moore.com> Acked-by: Mimi Zohar <zohar@linux.ibm.com> --- include/linux/evm.h | 8 +++++--- security/integrity/evm/evm_main.c | 4 +++- security/security.c | 2 +- 3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/include/linux/evm.h b/include/linux/evm.h
index 7de24c1ada90..3faabdd47852 100644
--- a/include/linux/evm.h
+++ b/include/linux/evm.h@@ -31,7 +31,8 @@ extern int evm_inode_setxattr(struct mnt_idmap *idmap, extern void evm_inode_post_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, - size_t xattr_value_len); + size_t xattr_value_len, + int flags); extern int evm_inode_copy_up_xattr(const char *name); extern int evm_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *xattr_name);
@@ -56,7 +57,7 @@ static inline void evm_inode_post_set_acl(struct dentry *dentry, const char *acl_name, struct posix_acl *kacl) { - return evm_inode_post_setxattr(dentry, acl_name, NULL, 0); + return evm_inode_post_setxattr(dentry, acl_name, NULL, 0, 0); } int evm_inode_init_security(struct inode *inode, struct inode *dir,
@@ -115,7 +116,8 @@ static inline int evm_inode_setxattr(struct mnt_idmap *idmap, static inline void evm_inode_post_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, - size_t xattr_value_len) + size_t xattr_value_len, + int flags) { return; }
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 12ba3207fd31..d35143179699 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c@@ -753,6 +753,7 @@ bool evm_revalidate_status(const char *xattr_name) * @xattr_name: pointer to the affected extended attribute name * @xattr_value: pointer to the new extended attribute value * @xattr_value_len: pointer to the new extended attribute value length + * @flags: flags to pass into filesystem operations * * Update the HMAC stored in 'security.evm' to reflect the change. *
@@ -761,7 +762,8 @@ bool evm_revalidate_status(const char *xattr_name) * i_mutex lock. */ void evm_inode_post_setxattr(struct dentry *dentry, const char *xattr_name, - const void *xattr_value, size_t xattr_value_len) + const void *xattr_value, size_t xattr_value_len, + int flags) { if (!evm_revalidate_status(xattr_name)) return;
diff --git a/security/security.c b/security/security.c
index 16361f75c2ae..7c240d768a76 100644
--- a/security/security.c
+++ b/security/security.c@@ -2368,7 +2368,7 @@ void security_inode_post_setxattr(struct dentry *dentry, const char *name, if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) return; call_void_hook(inode_post_setxattr, dentry, name, value, size, flags); - evm_inode_post_setxattr(dentry, name, value, size); + evm_inode_post_setxattr(dentry, name, value, size, flags); } /**
--
2.34.1