SEL_COMMIT_BOOLS, /* commit new boolean values */
SEL_MLS, /* return if MLS policy is enabled */
SEL_DISABLE, /* disable SELinux until next reboot */
- SEL_AVC, /* AVC management directory */
SEL_MEMBER, /* compute polyinstantiation membership decision */
SEL_CHECKREQPROT, /* check requested protection, not kernel-applied one */
SEL_COMPAT_NET, /* whether to use old compat network packet controls */
+ SEL_INO_NEXT, /* The next inode number to use */
};
+static unsigned long sel_last_ino = SEL_INO_NEXT - 1;
+
+#define SEL_INITCON_INO_OFFSET 0x01000000
+#define SEL_BOOL_INO_OFFSET 0x02000000
+#define SEL_INO_MASK 0x00ffffff
+
#define TMPBUFLEN 12
static ssize_t sel_read_enforce(struct file *filp, char __user *buf,
size_t count, loff_t *ppos)
#define sel_write_enforce NULL
#endif
-static struct file_operations sel_enforce_ops = {
+static const struct file_operations sel_enforce_ops = {
.read = sel_read_enforce,
.write = sel_write_enforce,
};
#define sel_write_disable NULL
#endif
-static struct file_operations sel_disable_ops = {
+static const struct file_operations sel_disable_ops = {
.write = sel_write_disable,
};
return simple_read_from_buffer(buf, count, ppos, tmpbuf, length);
}
-static struct file_operations sel_policyvers_ops = {
+static const struct file_operations sel_policyvers_ops = {
.read = sel_read_policyvers,
};
return simple_read_from_buffer(buf, count, ppos, tmpbuf, length);
}
-static struct file_operations sel_mls_ops = {
+static const struct file_operations sel_mls_ops = {
.read = sel_read_mls,
};
return length;
}
-static struct file_operations sel_load_ops = {
+static const struct file_operations sel_load_ops = {
.write = sel_write_load,
};
free_page((unsigned long) page);
return length;
}
-static struct file_operations sel_checkreqprot_ops = {
+static const struct file_operations sel_checkreqprot_ops = {
.read = sel_read_checkreqprot,
.write = sel_write_checkreqprot,
};
free_page((unsigned long) page);
return length;
}
-static struct file_operations sel_compat_net_ops = {
+static const struct file_operations sel_compat_net_ops = {
.read = sel_read_compat_net,
.write = sel_write_compat_net,
};
static ssize_t selinux_transaction_write(struct file *file, const char __user *buf, size_t size, loff_t *pos)
{
- ino_t ino = file->f_dentry->d_inode->i_ino;
+ ino_t ino = file->f_path.dentry->d_inode->i_ino;
char *data;
ssize_t rv;
return rv;
}
-static struct file_operations transaction_ops = {
+static const struct file_operations transaction_ops = {
.write = selinux_transaction_write,
.read = simple_transaction_read,
.release = simple_transaction_release,
return ret;
}
-#define BOOL_INO_OFFSET 30
-
static ssize_t sel_read_bool(struct file *filep, char __user *buf,
size_t count, loff_t *ppos)
{
goto out;
}
- inode = filep->f_dentry->d_inode;
- cur_enforcing = security_get_bool_value(inode->i_ino - BOOL_INO_OFFSET);
+ inode = filep->f_path.dentry->d_inode;
+ cur_enforcing = security_get_bool_value(inode->i_ino&SEL_INO_MASK);
if (cur_enforcing < 0) {
ret = cur_enforcing;
goto out;
}
length = scnprintf(page, PAGE_SIZE, "%d %d", cur_enforcing,
- bool_pending_values[inode->i_ino - BOOL_INO_OFFSET]);
+ bool_pending_values[inode->i_ino&SEL_INO_MASK]);
ret = simple_read_from_buffer(buf, count, ppos, page, length);
out:
mutex_unlock(&sel_mutex);
if (new_value)
new_value = 1;
- inode = filep->f_dentry->d_inode;
- bool_pending_values[inode->i_ino - BOOL_INO_OFFSET] = new_value;
+ inode = filep->f_path.dentry->d_inode;
+ bool_pending_values[inode->i_ino&SEL_INO_MASK] = new_value;
length = count;
out:
return length;
}
-static struct file_operations sel_bool_ops = {
+static const struct file_operations sel_bool_ops = {
.read = sel_read_bool,
.write = sel_write_bool,
};
return length;
}
-static struct file_operations sel_commit_bools_ops = {
+static const struct file_operations sel_commit_bools_ops = {
.write = sel_commit_bools_write,
};
file_list_lock();
list_for_each(p, &sb->s_files) {
struct file * filp = list_entry(p, struct file, f_u.fu_list);
- struct dentry * dentry = filp->f_dentry;
+ struct dentry * dentry = filp->f_path.dentry;
if (dentry->d_parent != de) {
continue;
isec->sid = sid;
isec->initialized = 1;
inode->i_fop = &sel_bool_ops;
- inode->i_ino = i + BOOL_INO_OFFSET;
+ inode->i_ino = i|SEL_BOOL_INO_OFFSET;
d_add(dentry, inode);
}
bool_num = num;
return ret;
}
-static struct file_operations sel_avc_cache_threshold_ops = {
+static const struct file_operations sel_avc_cache_threshold_ops = {
.read = sel_read_avc_cache_threshold,
.write = sel_write_avc_cache_threshold,
};
-static struct file_operations sel_avc_hash_stats_ops = {
+static const struct file_operations sel_avc_hash_stats_ops = {
.read = sel_read_avc_hash_stats,
};
return seq_open(file, &sel_avc_cache_stats_seq_ops);
}
-static struct file_operations sel_avc_cache_stats_ops = {
+static const struct file_operations sel_avc_cache_stats_ops = {
.open = sel_open_avc_cache_stats,
.read = seq_read,
.llseek = seq_lseek,
goto out;
}
inode->i_fop = files[i].ops;
+ inode->i_ino = ++sel_last_ino;
+ d_add(dentry, inode);
+ }
+out:
+ return ret;
+}
+
+static ssize_t sel_read_initcon(struct file * file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct inode *inode;
+ char *con;
+ u32 sid, len;
+ ssize_t ret;
+
+ inode = file->f_path.dentry->d_inode;
+ sid = inode->i_ino&SEL_INO_MASK;
+ ret = security_sid_to_context(sid, &con, &len);
+ if (ret < 0)
+ return ret;
+
+ ret = simple_read_from_buffer(buf, count, ppos, con, len);
+ kfree(con);
+ return ret;
+}
+
+static const struct file_operations sel_initcon_ops = {
+ .read = sel_read_initcon,
+};
+
+static int sel_make_initcon_files(struct dentry *dir)
+{
+ int i, ret = 0;
+
+ for (i = 1; i <= SECINITSID_NUM; i++) {
+ struct inode *inode;
+ struct dentry *dentry;
+ dentry = d_alloc_name(dir, security_get_initial_sid_context(i));
+ if (!dentry) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ inode = sel_make_inode(dir->d_sb, S_IFREG|S_IRUGO);
+ if (!inode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ inode->i_fop = &sel_initcon_ops;
+ inode->i_ino = i|SEL_INITCON_INO_OFFSET;
d_add(dentry, inode);
}
out:
}
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
+ inode->i_ino = ++sel_last_ino;
/* directory inodes start off with i_nlink == 2 (for "." entry) */
- inode->i_nlink++;
+ inc_nlink(inode);
d_add(dentry, inode);
/* bump link count on parent directory, too */
- dir->i_nlink++;
+ inc_nlink(dir);
out:
return ret;
}
ret = -ENOMEM;
goto err;
}
+ inode->i_ino = ++sel_last_ino;
isec = (struct inode_security_struct*)inode->i_security;
isec->sid = SECINITSID_DEVNULL;
isec->sclass = SECCLASS_CHR_FILE;
ret = sel_make_avc_files(dentry);
if (ret)
goto err;
+
+ dentry = d_alloc_name(sb->s_root, "initial_contexts");
+ if (!dentry) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ ret = sel_make_dir(root_inode, dentry);
+ if (ret)
+ goto err;
+
+ ret = sel_make_initcon_files(dentry);
+ if (ret)
+ goto err;
+
out:
return ret;
err:
git.samba.org / sfrench / cifs-2.6.git / blobdiff