1 // SPDX-License-Identifier: GPL-2.0-or-later
27 	unsigned int		method;  member
35 	xa_for_each(&sess->ksmbd_chann_list, index, chann) {  in free_channel_list()
36 		xa_erase(&sess->ksmbd_chann_list, index);  in free_channel_list()
40 	xa_destroy(&sess->ksmbd_chann_list);  in free_channel_list()
44 				struct ksmbd_session_rpc *entry)  in __session_rpc_close()  argument
48 	resp = ksmbd_rpc_close(sess, entry->id);  in __session_rpc_close()
50 		pr_err("Unable to close RPC pipe %d\n", entry->id);  in __session_rpc_close()
53 	ksmbd_rpc_id_free(entry->id);  in __session_rpc_close()
54 	kfree(entry);  in __session_rpc_close()
59 	struct ksmbd_session_rpc *entry;  in ksmbd_session_rpc_clear_list()  local
62 	xa_for_each(&sess->rpc_handle_list, index, entry) {  in ksmbd_session_rpc_clear_list()
63 		xa_erase(&sess->rpc_handle_list, index);  in ksmbd_session_rpc_clear_list()
64 		__session_rpc_close(sess, entry);  in ksmbd_session_rpc_clear_list()
67 	xa_destroy(&sess->rpc_handle_list);  in ksmbd_session_rpc_clear_list()
93 	struct ksmbd_session_rpc *entry;  in ksmbd_session_rpc_open()  local
95 	int method;  in ksmbd_session_rpc_open()  local
97 	method = __rpc_method(rpc_name);  in ksmbd_session_rpc_open()
98 	if (!method)  in ksmbd_session_rpc_open()
99 		return -EINVAL;  in ksmbd_session_rpc_open()
101 	entry = kzalloc(sizeof(struct ksmbd_session_rpc), GFP_KERNEL);  in ksmbd_session_rpc_open()
102 	if (!entry)  in ksmbd_session_rpc_open()
103 		return -ENOMEM;  in ksmbd_session_rpc_open()
105 	entry->method = method;  in ksmbd_session_rpc_open()
106 	entry->id = ksmbd_ipc_id_alloc();  in ksmbd_session_rpc_open()
107 	if (entry->id < 0)  in ksmbd_session_rpc_open()
109 	xa_store(&sess->rpc_handle_list, entry->id, entry, GFP_KERNEL);  in ksmbd_session_rpc_open()
111 	resp = ksmbd_rpc_open(sess, entry->id);  in ksmbd_session_rpc_open()
116 	return entry->id;  in ksmbd_session_rpc_open()
118 	xa_erase(&sess->rpc_handle_list, entry->id);  in ksmbd_session_rpc_open()
119 	ksmbd_rpc_id_free(entry->id);  in ksmbd_session_rpc_open()
121 	kfree(entry);  in ksmbd_session_rpc_open()
122 	return -EINVAL;  in ksmbd_session_rpc_open()
127 	struct ksmbd_session_rpc *entry;  in ksmbd_session_rpc_close()  local
129 	entry = xa_erase(&sess->rpc_handle_list, id);  in ksmbd_session_rpc_close()
130 	if (entry)  in ksmbd_session_rpc_close()
131 		__session_rpc_close(sess, entry);  in ksmbd_session_rpc_close()
136 	struct ksmbd_session_rpc *entry;  in ksmbd_session_rpc_method()  local
138 	entry = xa_load(&sess->rpc_handle_list, id);  in ksmbd_session_rpc_method()
139 	return entry ? entry->method : 0;  in ksmbd_session_rpc_method()
147 	if (sess->user)  in ksmbd_session_destroy()
148 		ksmbd_free_user(sess->user);  in ksmbd_session_destroy()
151 	ksmbd_destroy_file_table(&sess->file_table);  in ksmbd_session_destroy()
154 	kfree(sess->Preauth_HashValue);  in ksmbd_session_destroy()
155 	ksmbd_release_id(&session_ida, sess->id);  in ksmbd_session_destroy()
164 		if (id == sess->id) {  in __session_lookup()
165 			sess->last_active = jiffies;  in __session_lookup()
177 	down_write(&conn->session_lock);  in ksmbd_expire_session()
178 	xa_for_each(&conn->sessions, id, sess) {  in ksmbd_expire_session()
179 		if (sess->state != SMB2_SESSION_VALID ||  in ksmbd_expire_session()
181 			       sess->last_active + SMB2_SESSION_TIMEOUT)) {  in ksmbd_expire_session()
182 			xa_erase(&conn->sessions, sess->id);  in ksmbd_expire_session()
183 			hash_del(&sess->hlist);  in ksmbd_expire_session()
188 	up_write(&conn->session_lock);  in ksmbd_expire_session()
194 	sess->dialect = conn->dialect;  in ksmbd_session_register()
195 	memcpy(sess->ClientGUID, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);  in ksmbd_session_register()
197 	return xa_err(xa_store(&conn->sessions, sess->id, sess, GFP_KERNEL));  in ksmbd_session_register()
204 	chann = xa_erase(&sess->ksmbd_chann_list, (long)conn);  in ksmbd_chann_del()
206 		return -ENOENT;  in ksmbd_chann_del()
218 	if (conn->binding) {  in ksmbd_sessions_deregister()
224 			    xa_empty(&sess->ksmbd_chann_list)) {  in ksmbd_sessions_deregister()
225 				hash_del(&sess->hlist);  in ksmbd_sessions_deregister()
232 	down_write(&conn->session_lock);  in ksmbd_sessions_deregister()
233 	xa_for_each(&conn->sessions, id, sess) {  in ksmbd_sessions_deregister()
237 		xa_for_each(&sess->ksmbd_chann_list, chann_id, chann) {  in ksmbd_sessions_deregister()
238 			if (chann->conn != conn)  in ksmbd_sessions_deregister()
239 				ksmbd_conn_set_exiting(chann->conn);  in ksmbd_sessions_deregister()
243 		if (xa_empty(&sess->ksmbd_chann_list)) {  in ksmbd_sessions_deregister()
244 			xa_erase(&conn->sessions, sess->id);  in ksmbd_sessions_deregister()
245 			hash_del(&sess->hlist);  in ksmbd_sessions_deregister()
249 	up_write(&conn->session_lock);  in ksmbd_sessions_deregister()
257 	down_read(&conn->session_lock);  in ksmbd_session_lookup()
258 	sess = xa_load(&conn->sessions, id);  in ksmbd_session_lookup()
260 		sess->last_active = jiffies;  in ksmbd_session_lookup()
261 	up_read(&conn->session_lock);  in ksmbd_session_lookup()
272 		sess->last_active = jiffies;  in ksmbd_session_lookup_slowpath()
284 	if (!sess && conn->binding)  in ksmbd_session_lookup_all()
286 	if (sess && sess->state != SMB2_SESSION_VALID)  in ksmbd_session_lookup_all()
300 	sess->id = sess_id;  in ksmbd_preauth_session_alloc()
301 	memcpy(sess->Preauth_HashValue, conn->preauth_info->Preauth_HashValue,  in ksmbd_preauth_session_alloc()
303 	list_add(&sess->preauth_entry, &conn->preauth_sess_table);  in ksmbd_preauth_session_alloc()
311 	return sess->id == id;  in ksmbd_preauth_session_id_match()
319 	list_for_each_entry(sess, &conn->preauth_sess_table, preauth_entry) {  in ksmbd_preauth_session_lookup()
331 		return -EINVAL;  in __init_smb2_session()
332 	sess->id = id;  in __init_smb2_session()
348 	if (ksmbd_init_file_table(&sess->file_table))  in __session_create()
351 	sess->last_active = jiffies;  in __session_create()
352 	sess->state = SMB2_SESSION_IN_PROGRESS;  in __session_create()
354 	xa_init(&sess->tree_conns);  in __session_create()
355 	xa_init(&sess->ksmbd_chann_list);  in __session_create()
356 	xa_init(&sess->rpc_handle_list);  in __session_create()
357 	sess->sequence_number = 1;  in __session_create()
358 	rwlock_init(&sess->tree_conns_lock);  in __session_create()
364 	ida_init(&sess->tree_conn_ida);  in __session_create()
367 	hash_add(sessions_table, &sess->hlist, sess->id);  in __session_create()
384 	int id = -EINVAL;  in ksmbd_acquire_tree_conn_id()
387 		id = ksmbd_acquire_smb2_tid(&sess->tree_conn_ida);  in ksmbd_acquire_tree_conn_id()
395 		ksmbd_release_id(&sess->tree_conn_ida, id);  in ksmbd_release_tree_conn_id()