1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/**
* This file is part of Hercules.
* http://herc.ws - http://github.com/HerculesWS/Hercules
*
* Copyright (C) 2012-2015 Hercules Dev Team
* Copyright (C) Athena Dev Teams
*
* Hercules is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define HERCULES_CORE
#include "pincode.h"
#include "char/char.h"
#include "common/cbasetypes.h"
#include "common/db.h"
#include "common/mmo.h"
#include "common/nullpo.h"
#include "common/random.h"
#include "common/showmsg.h"
#include "common/socket.h"
#include "common/strlib.h"
#include <stdlib.h>
struct pincode_interface pincode_s;
struct pincode_interface *pincode;
void pincode_handle (int fd, struct char_session_data* sd) {
struct online_char_data* character;
nullpo_retv(sd);
character = (struct online_char_data*)idb_get(chr->online_char_db, sd->account_id);
if( character && character->pincode_enable > pincode->charselect ){
character->pincode_enable = pincode->charselect * 2;
}else{
pincode->sendstate( fd, sd, PINCODE_OK );
return;
}
if( strlen(sd->pincode) == 4 ){
if( pincode->changetime && time(NULL) > (sd->pincode_change+pincode->changetime) ){ // User hasn't changed his PIN code for a long time
pincode->sendstate( fd, sd, PINCODE_EXPIRED );
} else { // Ask user for his PIN code
pincode->sendstate( fd, sd, PINCODE_ASK );
}
} else // No PIN code has been set yet
pincode->sendstate( fd, sd, PINCODE_NOTSET );
if( character )
character->pincode_enable = -1;
}
void pincode_check(int fd, struct char_session_data* sd) {
char pin[5] = "\0\0\0\0";
nullpo_retv(sd);
safestrncpy(pin, (char*)RFIFOP(fd, 6), sizeof(pin));
pincode->decrypt(sd->pincode_seed, pin);
if( pincode->compare( fd, sd, pin ) ){
struct online_char_data* character;
if( (character = (struct online_char_data*)idb_get(chr->online_char_db, sd->account_id)) )
character->pincode_enable = pincode->charselect * 2;
pincode->sendstate( fd, sd, PINCODE_OK );
}
}
int pincode_compare(int fd, struct char_session_data* sd, char* pin) {
nullpo_ret(sd);
nullpo_ret(pin);
if( strcmp( sd->pincode, pin ) == 0 ){
sd->pincode_try = 0;
return 1;
} else {
pincode->sendstate( fd, sd, PINCODE_WRONG );
if( pincode->maxtry && ++sd->pincode_try >= pincode->maxtry ){
pincode->error( sd->account_id );
}
return 0;
}
}
void pincode_change(int fd, struct char_session_data* sd) {
char oldpin[5] = "\0\0\0\0", newpin[5] = "\0\0\0\0";
nullpo_retv(sd);
safestrncpy(oldpin, (char*)RFIFOP(fd,6), sizeof(oldpin));
pincode->decrypt(sd->pincode_seed,oldpin);
if( !pincode->compare( fd, sd, oldpin ) )
return;
safestrncpy(newpin, (char*)RFIFOP(fd,10), sizeof(newpin));
pincode->decrypt(sd->pincode_seed,newpin);
pincode->update( sd->account_id, newpin );
safestrncpy(sd->pincode, newpin, sizeof(sd->pincode));
pincode->sendstate( fd, sd, PINCODE_ASK );
}
void pincode_setnew(int fd, struct char_session_data* sd) {
char newpin[5] = "\0\0\0\0";
nullpo_retv(sd);
safestrncpy(newpin, (char*)RFIFOP(fd,6), sizeof(newpin));
pincode->decrypt(sd->pincode_seed,newpin);
pincode->update( sd->account_id, newpin );
safestrncpy(sd->pincode, newpin, sizeof(sd->pincode));
pincode->sendstate( fd, sd, PINCODE_ASK );
}
// 0 = pin is correct
// 1 = ask for pin - client sends 0x8b8
// 2 = create new pin - client sends 0x8ba
// 3 = pin must be changed - client 0x8be
// 4 = create new pin ?? - client sends 0x8ba
// 5 = client shows msgstr(1896)
// 6 = client shows msgstr(1897) Unable to use your KSSN number
// 7 = char select window shows a button - client sends 0x8c5
// 8 = pincode was incorrect
void pincode_sendstate(int fd, struct char_session_data* sd, uint16 state) {
nullpo_retv(sd);
WFIFOHEAD(fd, 12);
WFIFOW(fd, 0) = 0x8b9;
WFIFOL(fd, 2) = sd->pincode_seed = rnd() % 0xFFFF;
WFIFOL(fd, 6) = sd->account_id;
WFIFOW(fd,10) = state;
WFIFOSET(fd,12);
}
void pincode_notifyLoginPinUpdate(int account_id, char* pin) {
nullpo_retv(pin);
Assert_retv(chr->login_fd != -1);
WFIFOHEAD(chr->login_fd,11);
WFIFOW(chr->login_fd,0) = 0x2738;
WFIFOL(chr->login_fd,2) = account_id;
safestrncpy( (char*)WFIFOP(chr->login_fd,6), pin, 5 );
WFIFOSET(chr->login_fd,11);
}
void pincode_notifyLoginPinError(int account_id) {
WFIFOHEAD(chr->login_fd,6);
WFIFOW(chr->login_fd,0) = 0x2739;
WFIFOL(chr->login_fd,2) = account_id;
WFIFOSET(chr->login_fd,6);
}
void pincode_decrypt(unsigned int userSeed, char* pin) {
int i;
char tab[10] = {0,1,2,3,4,5,6,7,8,9};
nullpo_retv(pin);
for (i = 1; i < 10; i++) {
int pos;
userSeed = pincode->baseSeed + userSeed * pincode->multiplier;
pos = userSeed % (i + 1);
if( i != pos ){
tab[i] ^= tab[pos];
tab[pos] ^= tab[i];
tab[i] ^= tab[pos];
}
}
for( i = 0; i < 4; i++ ){
pin[i] = tab[pin[i] - '0'];
}
sprintf(pin, "%d%d%d%d", pin[0], pin[1], pin[2], pin[3]);
}
bool pincode_config_read(char *w1, char *w2) {
nullpo_ret(w1);
nullpo_ret(w2);
while ( true ) {
if ( strcmpi(w1, "pincode_enabled") == 0 ) {
pincode->enabled = atoi(w2);
#if PACKETVER < 20110309
if( pincode->enabled ) {
ShowWarning("pincode_enabled requires PACKETVER 20110309 or higher. disabling...\n");
pincode->enabled = 0;
}
#endif
} else if ( strcmpi(w1, "pincode_changetime") == 0 ) {
pincode->changetime = atoi(w2)*60;
} else if ( strcmpi(w1, "pincode_maxtry") == 0 ) {
pincode->maxtry = atoi(w2);
if( pincode->maxtry > 3 ) {
ShowWarning("pincode_maxtry is too high (%d); maximum allowed: 3! capping to 3...\n", pincode->maxtry);
pincode->maxtry = 3;
}
} else if ( strcmpi(w1, "pincode_charselect") == 0 ) {
pincode->charselect = atoi(w2);
} else {
return false;
}
break;
}
return true;
}
void pincode_defaults(void) {
pincode = &pincode_s;
pincode->enabled = PINCODE_OK;
pincode->changetime = 0;
pincode->maxtry = 3;
pincode->charselect = 0;
pincode->multiplier = 0x3498;
pincode->baseSeed = 0x881234;
pincode->handle = pincode_handle;
pincode->decrypt = pincode_decrypt;
pincode->error = pincode_notifyLoginPinError;
pincode->update = pincode_notifyLoginPinUpdate;
pincode->sendstate = pincode_sendstate;
pincode->setnew = pincode_setnew;
pincode->change = pincode_change;
pincode->compare = pincode_compare;
pincode->check = pincode_check;
pincode->config_read = pincode_config_read;
}
|
