diff options
Diffstat (limited to 'security/inode.c')
| -rw-r--r-- | security/inode.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/security/inode.c b/security/inode.c index c83db05c15ab..2cb14162ff8d 100644 --- a/security/inode.c +++ b/security/inode.c @@ -20,6 +20,7 @@ #include <linux/init.h> #include <linux/namei.h> #include <linux/security.h> +#include <linux/lsm_hooks.h> #include <linux/magic.h> static struct vfsmount *mount; @@ -204,6 +205,21 @@ void securityfs_remove(struct dentry *dentry) } EXPORT_SYMBOL_GPL(securityfs_remove); +#ifdef CONFIG_SECURITY +static struct dentry *lsm_dentry; +static ssize_t lsm_read(struct file *filp, char __user *buf, size_t count, + loff_t *ppos) +{ + return simple_read_from_buffer(buf, count, ppos, lsm_names, + strlen(lsm_names)); +} + +static const struct file_operations lsm_ops = { + .read = lsm_read, + .llseek = generic_file_llseek, +}; +#endif + static int __init securityfs_init(void) { int retval; @@ -213,9 +229,15 @@ static int __init securityfs_init(void) return retval; retval = register_filesystem(&fs_type); - if (retval) + if (retval) { sysfs_remove_mount_point(kernel_kobj, "security"); - return retval; + return retval; + } +#ifdef CONFIG_SECURITY + lsm_dentry = securityfs_create_file("lsm", 0444, NULL, NULL, + &lsm_ops); +#endif + return 0; } core_initcall(securityfs_init); |