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Diffstat (limited to 'fs/ksmbd/mgmt/tree_connect.c')
-rw-r--r--fs/ksmbd/mgmt/tree_connect.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/fs/ksmbd/mgmt/tree_connect.c b/fs/ksmbd/mgmt/tree_connect.c
new file mode 100644
index 000000000000..0d28e723a28c
--- /dev/null
+++ b/fs/ksmbd/mgmt/tree_connect.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2018 Samsung Electronics Co., Ltd.
+ */
+
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/xarray.h>
+
+#include "../transport_ipc.h"
+#include "../connection.h"
+
+#include "tree_connect.h"
+#include "user_config.h"
+#include "share_config.h"
+#include "user_session.h"
+
+struct ksmbd_tree_conn_status
+ksmbd_tree_conn_connect(struct ksmbd_session *sess, char *share_name)
+{
+ struct ksmbd_tree_conn_status status = {-EINVAL, NULL};
+ struct ksmbd_tree_connect_response *resp = NULL;
+ struct ksmbd_share_config *sc;
+ struct ksmbd_tree_connect *tree_conn = NULL;
+ struct sockaddr *peer_addr;
+ int ret;
+
+ sc = ksmbd_share_config_get(share_name);
+ if (!sc)
+ return status;
+
+ tree_conn = kzalloc(sizeof(struct ksmbd_tree_connect), GFP_KERNEL);
+ if (!tree_conn) {
+ status.ret = -ENOMEM;
+ goto out_error;
+ }
+
+ tree_conn->id = ksmbd_acquire_tree_conn_id(sess);
+ if (tree_conn->id < 0) {
+ status.ret = -EINVAL;
+ goto out_error;
+ }
+
+ peer_addr = KSMBD_TCP_PEER_SOCKADDR(sess->conn);
+ resp = ksmbd_ipc_tree_connect_request(sess,
+ sc,
+ tree_conn,
+ peer_addr);
+ if (!resp) {
+ status.ret = -EINVAL;
+ goto out_error;
+ }
+
+ status.ret = resp->status;
+ if (status.ret != KSMBD_TREE_CONN_STATUS_OK)
+ goto out_error;
+
+ tree_conn->flags = resp->connection_flags;
+ tree_conn->user = sess->user;
+ tree_conn->share_conf = sc;
+ status.tree_conn = tree_conn;
+
+ ret = xa_err(xa_store(&sess->tree_conns, tree_conn->id, tree_conn,
+ GFP_KERNEL));
+ if (ret) {
+ status.ret = -ENOMEM;
+ goto out_error;
+ }
+ kvfree(resp);
+ return status;
+
+out_error:
+ if (tree_conn)
+ ksmbd_release_tree_conn_id(sess, tree_conn->id);
+ ksmbd_share_config_put(sc);
+ kfree(tree_conn);
+ kvfree(resp);
+ return status;
+}
+
+int ksmbd_tree_conn_disconnect(struct ksmbd_session *sess,
+ struct ksmbd_tree_connect *tree_conn)
+{
+ int ret;
+
+ ret = ksmbd_ipc_tree_disconnect_request(sess->id, tree_conn->id);
+ ksmbd_release_tree_conn_id(sess, tree_conn->id);
+ xa_erase(&sess->tree_conns, tree_conn->id);
+ ksmbd_share_config_put(tree_conn->share_conf);
+ kfree(tree_conn);
+ return ret;
+}
+
+struct ksmbd_tree_connect *ksmbd_tree_conn_lookup(struct ksmbd_session *sess,
+ unsigned int id)
+{
+ return xa_load(&sess->tree_conns, id);
+}
+
+struct ksmbd_share_config *ksmbd_tree_conn_share(struct ksmbd_session *sess,
+ unsigned int id)
+{
+ struct ksmbd_tree_connect *tc;
+
+ tc = ksmbd_tree_conn_lookup(sess, id);
+ if (tc)
+ return tc->share_conf;
+ return NULL;
+}
+
+int ksmbd_tree_conn_session_logoff(struct ksmbd_session *sess)
+{
+ int ret = 0;
+ struct ksmbd_tree_connect *tc;
+ unsigned long id;
+
+ xa_for_each(&sess->tree_conns, id, tc)
+ ret |= ksmbd_tree_conn_disconnect(sess, tc);
+ xa_destroy(&sess->tree_conns);
+ return ret;
+}