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, *old;  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 	old = xa_store(&sess->rpc_handle_list, entry->id, entry, GFP_KERNEL);  in ksmbd_session_rpc_open()
113 	resp = ksmbd_rpc_open(sess, entry->id);  in ksmbd_session_rpc_open()
118 	return entry->id;  in ksmbd_session_rpc_open()
120 	xa_erase(&sess->rpc_handle_list, entry->id);  in ksmbd_session_rpc_open()
122 	ksmbd_rpc_id_free(entry->id);  in ksmbd_session_rpc_open()
124 	kfree(entry);  in ksmbd_session_rpc_open()
125 	return -EINVAL;  in ksmbd_session_rpc_open()
130 	struct ksmbd_session_rpc *entry;  in ksmbd_session_rpc_close()  local
132 	entry = xa_erase(&sess->rpc_handle_list, id);  in ksmbd_session_rpc_close()
133 	if (entry)  in ksmbd_session_rpc_close()
134 		__session_rpc_close(sess, entry);  in ksmbd_session_rpc_close()
139 	struct ksmbd_session_rpc *entry;  in ksmbd_session_rpc_method()  local
141 	entry = xa_load(&sess->rpc_handle_list, id);  in ksmbd_session_rpc_method()
142 	return entry ? entry->method : 0;  in ksmbd_session_rpc_method()
150 	if (sess->user)  in ksmbd_session_destroy()
151 		ksmbd_free_user(sess->user);  in ksmbd_session_destroy()
154 	ksmbd_destroy_file_table(&sess->file_table);  in ksmbd_session_destroy()
158 	kfree(sess->Preauth_HashValue);  in ksmbd_session_destroy()
159 	ksmbd_release_id(&session_ida, sess->id);  in ksmbd_session_destroy()
168 		if (id == sess->id) {  in __session_lookup()
169 			sess->last_active = jiffies;  in __session_lookup()
182 	down_write(&conn->session_lock);  in ksmbd_expire_session()
183 	xa_for_each(&conn->sessions, id, sess) {  in ksmbd_expire_session()
184 		if (atomic_read(&sess->refcnt) == 0 &&  in ksmbd_expire_session()
185 		    (sess->state != SMB2_SESSION_VALID ||  in ksmbd_expire_session()
187 			       sess->last_active + SMB2_SESSION_TIMEOUT))) {  in ksmbd_expire_session()
188 			xa_erase(&conn->sessions, sess->id);  in ksmbd_expire_session()
189 			hash_del(&sess->hlist);  in ksmbd_expire_session()
194 	up_write(&conn->session_lock);  in ksmbd_expire_session()
201 	sess->dialect = conn->dialect;  in ksmbd_session_register()
202 	memcpy(sess->ClientGUID, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);  in ksmbd_session_register()
204 	return xa_err(xa_store(&conn->sessions, sess->id, sess, GFP_KERNEL));  in ksmbd_session_register()
211 	chann = xa_erase(&sess->ksmbd_chann_list, (long)conn);  in ksmbd_chann_del()
213 		return -ENOENT;  in ksmbd_chann_del()
225 	if (conn->binding) {  in ksmbd_sessions_deregister()
231 			    xa_empty(&sess->ksmbd_chann_list)) {  in ksmbd_sessions_deregister()
232 				hash_del(&sess->hlist);  in ksmbd_sessions_deregister()
238 	down_write(&conn->session_lock);  in ksmbd_sessions_deregister()
239 	xa_for_each(&conn->sessions, id, sess) {  in ksmbd_sessions_deregister()
243 		xa_for_each(&sess->ksmbd_chann_list, chann_id, chann) {  in ksmbd_sessions_deregister()
244 			if (chann->conn != conn)  in ksmbd_sessions_deregister()
245 				ksmbd_conn_set_exiting(chann->conn);  in ksmbd_sessions_deregister()
249 		if (xa_empty(&sess->ksmbd_chann_list)) {  in ksmbd_sessions_deregister()
250 			xa_erase(&conn->sessions, sess->id);  in ksmbd_sessions_deregister()
251 			hash_del(&sess->hlist);  in ksmbd_sessions_deregister()
255 	up_write(&conn->session_lock);  in ksmbd_sessions_deregister()
264 	down_read(&conn->session_lock);  in ksmbd_session_lookup()
265 	sess = xa_load(&conn->sessions, id);  in ksmbd_session_lookup()
267 		sess->last_active = jiffies;  in ksmbd_session_lookup()
268 	up_read(&conn->session_lock);  in ksmbd_session_lookup()
289 	if (!sess && conn->binding)  in ksmbd_session_lookup_all()
291 	if (sess && sess->state != SMB2_SESSION_VALID)  in ksmbd_session_lookup_all()
298 	atomic_inc(&sess->refcnt);  in ksmbd_user_session_get()
306 	if (atomic_read(&sess->refcnt) <= 0)  in ksmbd_user_session_put()
309 		atomic_dec(&sess->refcnt);  in ksmbd_user_session_put()
321 	sess->id = sess_id;  in ksmbd_preauth_session_alloc()
322 	memcpy(sess->Preauth_HashValue, conn->preauth_info->Preauth_HashValue,  in ksmbd_preauth_session_alloc()
324 	list_add(&sess->preauth_entry, &conn->preauth_sess_table);  in ksmbd_preauth_session_alloc()
337 	down_write(&conn->session_lock);  in destroy_previous_session()
339 	if (!prev_sess || prev_sess->state == SMB2_SESSION_EXPIRED)  in destroy_previous_session()
342 	prev_user = prev_sess->user;  in destroy_previous_session()
344 	    strcmp(user->name, prev_user->name) ||  in destroy_previous_session()
345 	    user->passkey_sz != prev_user->passkey_sz ||  in destroy_previous_session()
346 	    memcmp(user->passkey, prev_user->passkey, user->passkey_sz))  in destroy_previous_session()
356 	ksmbd_destroy_file_table(&prev_sess->file_table);  in destroy_previous_session()
357 	prev_sess->state = SMB2_SESSION_EXPIRED;  in destroy_previous_session()
361 	up_write(&conn->session_lock);  in destroy_previous_session()
368 	return sess->id == id;  in ksmbd_preauth_session_id_match()
376 	list_for_each_entry(sess, &conn->preauth_sess_table, preauth_entry) {  in ksmbd_preauth_session_lookup()
388 		return -EINVAL;  in __init_smb2_session()
389 	sess->id = id;  in __init_smb2_session()
405 	if (ksmbd_init_file_table(&sess->file_table))  in __session_create()
408 	sess->last_active = jiffies;  in __session_create()
409 	sess->state = SMB2_SESSION_IN_PROGRESS;  in __session_create()
411 	xa_init(&sess->tree_conns);  in __session_create()
412 	xa_init(&sess->ksmbd_chann_list);  in __session_create()
413 	xa_init(&sess->rpc_handle_list);  in __session_create()
414 	sess->sequence_number = 1;  in __session_create()
415 	rwlock_init(&sess->tree_conns_lock);  in __session_create()
416 	atomic_set(&sess->refcnt, 1);  in __session_create()
422 	ida_init(&sess->tree_conn_ida);  in __session_create()
425 	hash_add(sessions_table, &sess->hlist, sess->id);  in __session_create()
442 	int id = -EINVAL;  in ksmbd_acquire_tree_conn_id()
445 		id = ksmbd_acquire_smb2_tid(&sess->tree_conn_ida);  in ksmbd_acquire_tree_conn_id()
453 		ksmbd_release_id(&sess->tree_conn_ida, id);  in ksmbd_release_tree_conn_id()