diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/security.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/security/security.c b/security/security.c index 6db15aa..837d3d3 100644 --- a/security/security.c +++ b/security/security.c @@ -18,6 +18,8 @@ #include <linux/security.h> #include <linux/ima.h> +#define MAX_LSM_XATTR 1 + /* Boot-time LSM user choice */ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = CONFIG_DEFAULT_SECURITY; @@ -359,8 +361,8 @@ void security_inode_free(struct inode *inode) } int security_inode_init_security(struct inode *inode, struct inode *dir, - const struct qstr *qstr, char **name, - void **value, size_t *len) + const struct qstr *qstr, char **name, + void **value, size_t *len) { if (unlikely(IS_PRIVATE(inode))) return -EOPNOTSUPP; @@ -369,6 +371,37 @@ int security_inode_init_security(struct inode *inode, struct inode *dir, } EXPORT_SYMBOL(security_inode_init_security); +int security_new_inode_init_security(struct inode *inode, struct inode *dir, + const struct qstr *qstr, + const initxattrs initxattrs, void *fs_data) +{ + struct xattr new_xattrs[MAX_LSM_XATTR + 1]; + struct xattr *lsm_xattr; + int ret; + + if (unlikely(IS_PRIVATE(inode))) + return -EOPNOTSUPP; + + memset(new_xattrs, 0, sizeof new_xattrs); + if (!initxattrs) + return security_ops->inode_init_security(inode, dir, qstr, + NULL, NULL, NULL); + lsm_xattr = new_xattrs; + ret = security_ops->inode_init_security(inode, dir, qstr, + &lsm_xattr->name, + &lsm_xattr->value, + &lsm_xattr->value_len); + if (ret) + goto out; + ret = initxattrs(inode, new_xattrs, fs_data); +out: + kfree(lsm_xattr->name); + kfree(lsm_xattr->value); + + return (ret == -EOPNOTSUPP) ? 0 : ret; +} +EXPORT_SYMBOL(security_new_inode_init_security); + #ifdef CONFIG_SECURITY_PATH int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, unsigned int dev) |