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Diffstat (limited to 'security/selinux/selinuxfs.c')
-rw-r--r--security/selinux/selinuxfs.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index ee94fa469c29..dd7bb1f1dc99 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1482,6 +1482,32 @@ static ssize_t sel_read_avc_hash_stats(struct file *filp, char __user *buf,
return length;
}
+static ssize_t sel_read_sidtab_hash_stats(struct file *filp, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct selinux_fs_info *fsi = file_inode(filp)->i_sb->s_fs_info;
+ struct selinux_state *state = fsi->state;
+ char *page;
+ ssize_t length;
+
+ page = (char *)__get_free_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+
+ length = security_sidtab_hash_stats(state, page);
+ if (length >= 0)
+ length = simple_read_from_buffer(buf, count, ppos, page,
+ length);
+ free_page((unsigned long)page);
+
+ return length;
+}
+
+static const struct file_operations sel_sidtab_hash_stats_ops = {
+ .read = sel_read_sidtab_hash_stats,
+ .llseek = generic_file_llseek,
+};
+
static const struct file_operations sel_avc_cache_threshold_ops = {
.read = sel_read_avc_cache_threshold,
.write = sel_write_avc_cache_threshold,
@@ -1599,6 +1625,37 @@ static int sel_make_avc_files(struct dentry *dir)
return 0;
}
+static int sel_make_ss_files(struct dentry *dir)
+{
+ struct super_block *sb = dir->d_sb;
+ struct selinux_fs_info *fsi = sb->s_fs_info;
+ int i;
+ static struct tree_descr files[] = {
+ { "sidtab_hash_stats", &sel_sidtab_hash_stats_ops, S_IRUGO },
+ };
+
+ for (i = 0; i < ARRAY_SIZE(files); i++) {
+ struct inode *inode;
+ struct dentry *dentry;
+
+ dentry = d_alloc_name(dir, files[i].name);
+ if (!dentry)
+ return -ENOMEM;
+
+ inode = sel_make_inode(dir->d_sb, S_IFREG|files[i].mode);
+ if (!inode) {
+ dput(dentry);
+ return -ENOMEM;
+ }
+
+ inode->i_fop = files[i].ops;
+ inode->i_ino = ++fsi->last_ino;
+ d_add(dentry, inode);
+ }
+
+ return 0;
+}
+
static ssize_t sel_read_initcon(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
@@ -1963,6 +2020,14 @@ static int sel_fill_super(struct super_block *sb, struct fs_context *fc)
}
ret = sel_make_avc_files(dentry);
+
+ dentry = sel_make_dir(sb->s_root, "ss", &fsi->last_ino);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto err;
+ }
+
+ ret = sel_make_ss_files(dentry);
if (ret)
goto err;