1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
4 */
5
6#include <linux/slab.h>
7#include <linux/mm.h>
8
9#include "user_config.h"
10#include "../transport_ipc.h"
11
12struct ksmbd_user *ksmbd_login_user(const char *account)
13{
14	struct ksmbd_login_response *resp;
15	struct ksmbd_user *user = NULL;
16
17	resp = ksmbd_ipc_login_request(account);
18	if (!resp)
19		return NULL;
20
21	if (!(resp->status & KSMBD_USER_FLAG_OK))
22		goto out;
23
24	user = ksmbd_alloc_user(resp);
25out:
26	kvfree(resp);
27	return user;
28}
29
30struct ksmbd_user *ksmbd_alloc_user(struct ksmbd_login_response *resp)
31{
32	struct ksmbd_user *user = NULL;
33
34	user = kmalloc(sizeof(struct ksmbd_user), GFP_KERNEL);
35	if (!user)
36		return NULL;
37
38	user->name = kstrdup(resp->account, GFP_KERNEL);
39	user->flags = resp->status;
40	user->gid = resp->gid;
41	user->uid = resp->uid;
42	user->passkey_sz = resp->hash_sz;
43	user->passkey = kmalloc(resp->hash_sz, GFP_KERNEL);
44	if (user->passkey)
45		memcpy(user->passkey, resp->hash, resp->hash_sz);
46
47	if (!user->name || !user->passkey) {
48		kfree(user->name);
49		kfree(user->passkey);
50		kfree(user);
51		user = NULL;
52	}
53	return user;
54}
55
56void ksmbd_free_user(struct ksmbd_user *user)
57{
58	ksmbd_ipc_logout_request(user->name, user->flags);
59	kfree(user->name);
60	kfree(user->passkey);
61	kfree(user);
62}
63
64int ksmbd_anonymous_user(struct ksmbd_user *user)
65{
66	if (user->name[0] == '\0')
67		return 1;
68	return 0;
69}
70
71bool ksmbd_compare_user(struct ksmbd_user *u1, struct ksmbd_user *u2)
72{
73	if (strcmp(u1->name, u2->name))
74		return false;
75	if (memcmp(u1->passkey, u2->passkey, u1->passkey_sz))
76		return false;
77
78	return true;
79}
80