diff options
| -rw-r--r-- | include/linux/evm.h | 14 | ||||
| -rw-r--r-- | security/integrity/evm/evm_main.c | 16 | ||||
| -rw-r--r-- | security/security.c | 4 |
3 files changed, 20 insertions, 14 deletions
diff --git a/include/linux/evm.h b/include/linux/evm.h index 7dc1ee74169f..01fc495a83e2 100644 --- a/include/linux/evm.h +++ b/include/linux/evm.h @@ -56,9 +56,10 @@ static inline void evm_inode_post_set_acl(struct dentry *dentry, { return evm_inode_post_setxattr(dentry, acl_name, NULL, 0); } -extern int evm_inode_init_security(struct inode *inode, - const struct xattr *xattr_array, - struct xattr *evm); + +int evm_inode_init_security(struct inode *inode, struct inode *dir, + const struct qstr *qstr, struct xattr *xattrs, + int *xattr_count); extern bool evm_revalidate_status(const char *xattr_name); extern int evm_protected_xattr_if_enabled(const char *req_xattr_name); extern int evm_read_protected_xattrs(struct dentry *dentry, u8 *buffer, @@ -157,9 +158,10 @@ static inline void evm_inode_post_set_acl(struct dentry *dentry, return; } -static inline int evm_inode_init_security(struct inode *inode, - const struct xattr *xattr_array, - struct xattr *evm) +static inline int evm_inode_init_security(struct inode *inode, struct inode *dir, + const struct qstr *qstr, + struct xattr *xattrs, + int *xattr_count) { return 0; } diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c index c9b6e2a43478..84eaf05ce0d4 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -21,6 +21,7 @@ #include <linux/evm.h> #include <linux/magic.h> #include <linux/posix_acl_xattr.h> +#include <linux/lsm_hooks.h> #include <crypto/hash.h> #include <crypto/hash_info.h> @@ -866,23 +867,26 @@ void evm_inode_post_setattr(struct dentry *dentry, int ia_valid) /* * evm_inode_init_security - initializes security.evm HMAC value */ -int evm_inode_init_security(struct inode *inode, - const struct xattr *lsm_xattr, - struct xattr *evm_xattr) +int evm_inode_init_security(struct inode *inode, struct inode *dir, + const struct qstr *qstr, struct xattr *xattrs, + int *xattr_count) { struct evm_xattr *xattr_data; + struct xattr *evm_xattr; int rc; - if (!(evm_initialized & EVM_INIT_HMAC) || - !evm_protected_xattr(lsm_xattr->name)) + if (!(evm_initialized & EVM_INIT_HMAC) || !xattrs || + !evm_protected_xattr(xattrs->name)) return 0; + evm_xattr = lsm_get_xattr_slot(xattrs, xattr_count); + xattr_data = kzalloc(sizeof(*xattr_data), GFP_NOFS); if (!xattr_data) return -ENOMEM; xattr_data->data.type = EVM_XATTR_HMAC; - rc = evm_init_hmac(inode, lsm_xattr, xattr_data->digest); + rc = evm_init_hmac(inode, xattrs, xattr_data->digest); if (rc < 0) goto out; diff --git a/security/security.c b/security/security.c index b3ba030c7546..cfdd0cbbcb91 100644 --- a/security/security.c +++ b/security/security.c @@ -1647,8 +1647,8 @@ int security_inode_init_security(struct inode *inode, struct inode *dir, if (!xattr_count) goto out; - ret = evm_inode_init_security(inode, new_xattrs, - &new_xattrs[xattr_count]); + ret = evm_inode_init_security(inode, dir, qstr, new_xattrs, + &xattr_count); if (ret) goto out; ret = initxattrs(inode, new_xattrs, fs_data); |