// Copyright (c) Athena Dev Teams - Licensed under GNU GPL // For more information, see LICENCE in the main folder #include "../common/core.h" #include "../common/db.h" #include "../common/malloc.h" #include "../common/md5calc.h" #include "../common/random.h" #include "../common/showmsg.h" #include "../common/socket.h" #include "../common/strlib.h" #include "../common/timer.h" #include "account.h" #include "ipban.h" #include "login.h" #include "loginlog.h" #include #include #include struct Login_Config login_config; int login_fd; // login server socket struct mmo_char_server server[MAX_SERVERS]; // char server data // Account engines available static struct{ AccountDB* (*constructor)(void); AccountDB* db; } account_engines[] = { {account_db_sql, NULL}, #ifdef ACCOUNTDB_ENGINE_0 {ACCOUNTDB_CONSTRUCTOR(ACCOUNTDB_ENGINE_0), NULL}, #endif #ifdef ACCOUNTDB_ENGINE_1 {ACCOUNTDB_CONSTRUCTOR(ACCOUNTDB_ENGINE_1), NULL}, #endif #ifdef ACCOUNTDB_ENGINE_2 {ACCOUNTDB_CONSTRUCTOR(ACCOUNTDB_ENGINE_2), NULL}, #endif #ifdef ACCOUNTDB_ENGINE_3 {ACCOUNTDB_CONSTRUCTOR(ACCOUNTDB_ENGINE_3), NULL}, #endif #ifdef ACCOUNTDB_ENGINE_4 {ACCOUNTDB_CONSTRUCTOR(ACCOUNTDB_ENGINE_4), NULL}, #endif // end of structure {NULL, NULL} }; // account database AccountDB* accounts = NULL; //Account registration flood protection [Kevin] int allowed_regs = 1; int time_allowed = 10; //in seconds // Advanced subnet check [LuzZza] struct s_subnet { uint32 mask; uint32 char_ip; uint32 map_ip; } subnet[16]; int subnet_count = 0; int mmo_auth_new(const char* userid, const char* pass, const char sex, const char* last_ip); //----------------------------------------------------- // Auth database //----------------------------------------------------- #define AUTH_TIMEOUT 30000 struct auth_node { int account_id; uint32 login_id1; uint32 login_id2; uint32 ip; char sex; uint32 version; uint8 clienttype; }; static DBMap* auth_db; // int account_id -> struct auth_node* //----------------------------------------------------- // Online User Database [Wizputer] //----------------------------------------------------- struct online_login_data { int account_id; int waiting_disconnect; int char_server; }; static DBMap* online_db; // int account_id -> struct online_login_data* static int waiting_disconnect_timer(int tid, unsigned int tick, int id, intptr_t data); /** * @see DBCreateData */ static DBData create_online_user(DBKey key, va_list args) { struct online_login_data* p; CREATE(p, struct online_login_data, 1); p->account_id = key.i; p->char_server = -1; p->waiting_disconnect = INVALID_TIMER; return db_ptr2data(p); } struct online_login_data* add_online_user(int char_server, int account_id) { struct online_login_data* p; p = idb_ensure(online_db, account_id, create_online_user); p->char_server = char_server; if( p->waiting_disconnect != INVALID_TIMER ) { delete_timer(p->waiting_disconnect, waiting_disconnect_timer); p->waiting_disconnect = INVALID_TIMER; } return p; } void remove_online_user(int account_id) { struct online_login_data* p; p = (struct online_login_data*)idb_get(online_db, account_id); if( p == NULL ) return; if( p->waiting_disconnect != INVALID_TIMER ) delete_timer(p->waiting_disconnect, waiting_disconnect_timer); idb_remove(online_db, account_id); } static int waiting_disconnect_timer(int tid, unsigned int tick, int id, intptr_t data) { struct online_login_data* p = (struct online_login_data*)idb_get(online_db, id); if( p != NULL && p->waiting_disconnect == tid && p->account_id == id ) { p->waiting_disconnect = INVALID_TIMER; remove_online_user(id); idb_remove(auth_db, id); } return 0; } /** * @see DBApply */ static int online_db_setoffline(DBKey key, DBData *data, va_list ap) { struct online_login_data* p = db_data2ptr(data); int server = va_arg(ap, int); if( server == -1 ) { p->char_server = -1; if( p->waiting_disconnect != INVALID_TIMER ) { delete_timer(p->waiting_disconnect, waiting_disconnect_timer); p->waiting_disconnect = INVALID_TIMER; } } else if( p->char_server == server ) p->char_server = -2; //Char server disconnected. return 0; } /** * @see DBApply */ static int online_data_cleanup_sub(DBKey key, DBData *data, va_list ap) { struct online_login_data *character= db_data2ptr(data); if (character->char_server == -2) //Unknown server.. set them offline remove_online_user(character->account_id); return 0; } static int online_data_cleanup(int tid, unsigned int tick, int id, intptr_t data) { online_db->foreach(online_db, online_data_cleanup_sub); return 0; } //-------------------------------------------------------------------- // Packet send to all char-servers, except one (wos: without our self) //-------------------------------------------------------------------- int charif_sendallwos(int sfd, uint8* buf, size_t len) { int i, c; for( i = 0, c = 0; i < ARRAYLENGTH(server); ++i ) { int fd = server[i].fd; if( session_isValid(fd) && fd != sfd ) { WFIFOHEAD(fd,len); memcpy(WFIFOP(fd,0), buf, len); WFIFOSET(fd,len); ++c; } } return c; } /// Initializes a server structure. void chrif_server_init(int id) { memset(&server[id], 0, sizeof(server[id])); server[id].fd = -1; } /// Destroys a server structure. void chrif_server_destroy(int id) { if( server[id].fd != -1 ) { do_close(server[id].fd); server[id].fd = -1; } } /// Resets all the data related to a server. void chrif_server_reset(int id) { online_db->foreach(online_db, online_db_setoffline, id); //Set all chars from this char server to offline. chrif_server_destroy(id); chrif_server_init(id); } /// Called when the connection to Char Server is disconnected. void chrif_on_disconnect(int id) { ShowStatus("Char-server '%s' has disconnected.\n", server[id].name); chrif_server_reset(id); } //----------------------------------------------------- // periodic ip address synchronization //----------------------------------------------------- static int sync_ip_addresses(int tid, unsigned int tick, int id, intptr_t data) { uint8 buf[2]; ShowInfo("IP Sync in progress...\n"); WBUFW(buf,0) = 0x2735; charif_sendallwos(-1, buf, 2); return 0; } //----------------------------------------------------- // encrypted/unencrypted password check (from eApp) //----------------------------------------------------- bool check_encrypted(const char* str1, const char* str2, const char* passwd) { char tmpstr[64+1], md5str[32+1]; safesnprintf(tmpstr, sizeof(tmpstr), "%s%s", str1, str2); MD5_String(tmpstr, md5str); return (0==strcmp(passwd, md5str)); } bool check_password(const char* md5key, int passwdenc, const char* passwd, const char* refpass) { if(passwdenc == 0) { return (0==strcmp(passwd, refpass)); } else { // password mode set to 1 -> md5(md5key, refpass) enable with // password mode set to 2 -> md5(refpass, md5key) enable with return ((passwdenc&0x01) && check_encrypted(md5key, refpass, passwd)) || ((passwdenc&0x02) && check_encrypted(refpass, md5key, passwd)); } } //----------------------------------------------------- // custom timestamp formatting (from eApp) //----------------------------------------------------- const char* timestamp2string(char* str, size_t size, time_t timestamp, const char* format) { size_t len = strftime(str, size, format, localtime(×tamp)); memset(str + len, '\0', size - len); return str; } //-------------------------------------------- // Test to know if an IP come from LAN or WAN. //-------------------------------------------- int lan_subnetcheck(uint32 ip) { int i; ARR_FIND( 0, subnet_count, i, (subnet[i].char_ip & subnet[i].mask) == (ip & subnet[i].mask) ); return ( i < subnet_count ) ? subnet[i].char_ip : 0; } //---------------------------------- // Reading Lan Support configuration //---------------------------------- int login_lan_config_read(const char *lancfgName) { FILE *fp; int line_num = 0; char line[1024], w1[64], w2[64], w3[64], w4[64]; if((fp = fopen(lancfgName, "r")) == NULL) { ShowWarning("LAN Support configuration file is not found: %s\n", lancfgName); return 1; } ShowInfo("Reading the configuration file %s...\n", lancfgName); while(fgets(line, sizeof(line), fp)) { line_num++; if ((line[0] == '/' && line[1] == '/') || line[0] == '\n' || line[1] == '\n') continue; if(sscanf(line,"%[^:]: %[^:]:%[^:]:%[^\r\n]", w1, w2, w3, w4) != 4) { ShowWarning("Error syntax of configuration file %s in line %d.\n", lancfgName, line_num); continue; } if( strcmpi(w1, "subnet") == 0 ) { subnet[subnet_count].mask = str2ip(w2); subnet[subnet_count].char_ip = str2ip(w3); subnet[subnet_count].map_ip = str2ip(w4); if( (subnet[subnet_count].char_ip & subnet[subnet_count].mask) != (subnet[subnet_count].map_ip & subnet[subnet_count].mask) ) { ShowError("%s: Configuration Error: The char server (%s) and map server (%s) belong to different subnetworks!\n", lancfgName, w3, w4); continue; } subnet_count++; } } ShowStatus("Read information about %d subnetworks.\n", subnet_count); fclose(fp); return 0; } //----------------------- // Console Command Parser [Wizputer] //----------------------- int parse_console(const char* command) { ShowNotice("Console command: %s\n", command); if( strcmpi("shutdown", command) == 0 || strcmpi("exit", command) == 0 || strcmpi("quit", command) == 0 || strcmpi("end", command) == 0 ) runflag = 0; else if( strcmpi("alive", command) == 0 || strcmpi("status", command) == 0 ) ShowInfo(CL_CYAN"Console: "CL_BOLD"I'm Alive."CL_RESET"\n"); else if( strcmpi("help", command) == 0 ) { ShowInfo("To shutdown the server:\n"); ShowInfo(" 'shutdown|exit|quit|end'\n"); ShowInfo("To know if server is alive:\n"); ShowInfo(" 'alive|status'\n"); ShowInfo("To create a new account:\n"); ShowInfo(" 'create'\n"); } else {// commands with parameters char cmd[128], params[256]; if( sscanf(command, "%127s %255[^\r\n]", cmd, params) < 2 ) { return 0; } if( strcmpi(cmd, "create") == 0 ) { char username[NAME_LENGTH], password[NAME_LENGTH], sex; if( sscanf(params, "%23s %23s %c", username, password, &sex) < 3 || strnlen(username, sizeof(username)) < 4 || strnlen(password, sizeof(password)) < 1 ) { ShowWarning("Console: Invalid parameters for '%s'. Usage: %s \n", cmd, cmd); return 0; } if( mmo_auth_new(username, password, TOUPPER(sex), "0.0.0.0") != -1 ) { ShowError("Console: Account creation failed.\n"); return 0; } ShowStatus("Console: Account '%s' created successfully.\n", username); } } return 0; } //-------------------------------- // Packet parsing for char-servers //-------------------------------- int parse_fromchar(int fd) { int j, id; uint32 ipl; char ip[16]; ARR_FIND( 0, ARRAYLENGTH(server), id, server[id].fd == fd ); if( id == ARRAYLENGTH(server) ) {// not a char server ShowDebug("parse_fromchar: Disconnecting invalid session #%d (is not a char-server)\n", fd); set_eof(fd); do_close(fd); return 0; } if( session[fd]->flag.eof ) { do_close(fd); server[id].fd = -1; chrif_on_disconnect(id); return 0; } ipl = server[id].ip; ip2str(ipl, ip); while( RFIFOREST(fd) >= 2 ) { uint16 command = RFIFOW(fd,0); switch( command ) { case 0x2712: // request from char-server to authenticate an account if( RFIFOREST(fd) < 23 ) return 0; { struct auth_node* node; int account_id = RFIFOL(fd,2); uint32 login_id1 = RFIFOL(fd,6); uint32 login_id2 = RFIFOL(fd,10); uint8 sex = RFIFOB(fd,14); //uint32 ip_ = ntohl(RFIFOL(fd,15)); int request_id = RFIFOL(fd,19); RFIFOSKIP(fd,23); node = (struct auth_node*)idb_get(auth_db, account_id); if( runflag == LOGINSERVER_ST_RUNNING && node != NULL && node->account_id == account_id && node->login_id1 == login_id1 && node->login_id2 == login_id2 && node->sex == sex_num2str(sex) /*&& node->ip == ip_*/ ) {// found //ShowStatus("Char-server '%s': authentication of the account %d accepted (ip: %s).\n", server[id].name, account_id, ip); // send ack WFIFOHEAD(fd,25); WFIFOW(fd,0) = 0x2713; WFIFOL(fd,2) = account_id; WFIFOL(fd,6) = login_id1; WFIFOL(fd,10) = login_id2; WFIFOB(fd,14) = sex; WFIFOB(fd,15) = 0;// ok WFIFOL(fd,16) = request_id; WFIFOL(fd,20) = node->version; WFIFOB(fd,24) = node->clienttype; WFIFOSET(fd,25); // each auth entry can only be used once idb_remove(auth_db, account_id); } else {// authentication not found ShowStatus("Char-server '%s': authentication of the account %d REFUSED (ip: %s).\n", server[id].name, account_id, ip); WFIFOHEAD(fd,25); WFIFOW(fd,0) = 0x2713; WFIFOL(fd,2) = account_id; WFIFOL(fd,6) = login_id1; WFIFOL(fd,10) = login_id2; WFIFOB(fd,14) = sex; WFIFOB(fd,15) = 1;// auth failed WFIFOL(fd,16) = request_id; WFIFOL(fd,20) = 0; WFIFOB(fd,24) = 0; WFIFOSET(fd,25); } } break; case 0x2714: if( RFIFOREST(fd) < 6 ) return 0; { int users = RFIFOL(fd,2); RFIFOSKIP(fd,6); // how many users on world? (update) if( server[id].users != users ) { ShowStatus("set users %s : %d\n", server[id].name, users); server[id].users = users; } } break; case 0x2715: // request from char server to change e-email from default "a@a.com" if (RFIFOREST(fd) < 46) return 0; { struct mmo_account acc; char email[40]; int account_id = RFIFOL(fd,2); safestrncpy(email, (char*)RFIFOP(fd,6), 40); remove_control_chars(email); RFIFOSKIP(fd,46); if( e_mail_check(email) == 0 ) ShowNotice("Char-server '%s': Attempt to create an e-mail on an account with a default e-mail REFUSED - e-mail is invalid (account: %d, ip: %s)\n", server[id].name, account_id, ip); else if( !accounts->load_num(accounts, &acc, account_id) || strcmp(acc.email, "a@a.com") == 0 || acc.email[0] == '\0' ) ShowNotice("Char-server '%s': Attempt to create an e-mail on an account with a default e-mail REFUSED - account doesn't exist or e-mail of account isn't default e-mail (account: %d, ip: %s).\n", server[id].name, account_id, ip); else { memcpy(acc.email, email, 40); ShowNotice("Char-server '%s': Create an e-mail on an account with a default e-mail (account: %d, new e-mail: %s, ip: %s).\n", server[id].name, account_id, email, ip); // Save accounts->save(accounts, &acc); } } break; case 0x2716: // request account data if( RFIFOREST(fd) < 6 ) return 0; { struct mmo_account acc; time_t expiration_time = 0; char email[40] = ""; int group_id = 0; char birthdate[10+1] = ""; int account_id = RFIFOL(fd,2); RFIFOSKIP(fd,6); if( !accounts->load_num(accounts, &acc, account_id) ) ShowNotice("Char-server '%s': account %d NOT found (ip: %s).\n", server[id].name, account_id, ip); else { safestrncpy(email, acc.email, sizeof(email)); expiration_time = acc.expiration_time; group_id = acc.group_id; safestrncpy(birthdate, acc.birthdate, sizeof(birthdate)); } WFIFOHEAD(fd,62); WFIFOW(fd,0) = 0x2717; WFIFOL(fd,2) = account_id; safestrncpy((char*)WFIFOP(fd,6), email, 40); WFIFOL(fd,46) = (uint32)expiration_time; WFIFOB(fd,50) = group_id; safestrncpy((char*)WFIFOP(fd,51), birthdate, 10+1); WFIFOSET(fd,62); } break; case 0x2719: // ping request from charserver RFIFOSKIP(fd,2); WFIFOHEAD(fd,2); WFIFOW(fd,0) = 0x2718; WFIFOSET(fd,2); break; // Map server send information to change an email of an account via char-server case 0x2722: // 0x2722 .L .40B .40B if (RFIFOREST(fd) < 86) return 0; { struct mmo_account acc; char actual_email[40]; char new_email[40]; int account_id = RFIFOL(fd,2); safestrncpy(actual_email, (char*)RFIFOP(fd,6), 40); safestrncpy(new_email, (char*)RFIFOP(fd,46), 40); RFIFOSKIP(fd, 86); if( e_mail_check(actual_email) == 0 ) ShowNotice("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command), but actual email is invalid (account: %d, ip: %s)\n", server[id].name, account_id, ip); else if( e_mail_check(new_email) == 0 ) ShowNotice("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command) with a invalid new e-mail (account: %d, ip: %s)\n", server[id].name, account_id, ip); else if( strcmpi(new_email, "a@a.com") == 0 ) ShowNotice("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command) with a default e-mail (account: %d, ip: %s)\n", server[id].name, account_id, ip); else if( !accounts->load_num(accounts, &acc, account_id) ) ShowNotice("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command), but account doesn't exist (account: %d, ip: %s).\n", server[id].name, account_id, ip); else if( strcmpi(acc.email, actual_email) != 0 ) ShowNotice("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command), but actual e-mail is incorrect (account: %d (%s), actual e-mail: %s, proposed e-mail: %s, ip: %s).\n", server[id].name, account_id, acc.userid, acc.email, actual_email, ip); else { safestrncpy(acc.email, new_email, 40); ShowNotice("Char-server '%s': Modify an e-mail on an account (@email GM command) (account: %d (%s), new e-mail: %s, ip: %s).\n", server[id].name, account_id, acc.userid, new_email, ip); // Save accounts->save(accounts, &acc); } } break; case 0x2724: // Receiving an account state update request from a map-server (relayed via char-server) if (RFIFOREST(fd) < 10) return 0; { struct mmo_account acc; int account_id = RFIFOL(fd,2); unsigned int state = RFIFOL(fd,6); RFIFOSKIP(fd,10); if( !accounts->load_num(accounts, &acc, account_id) ) ShowNotice("Char-server '%s': Error of Status change (account: %d not found, suggested status %d, ip: %s).\n", server[id].name, account_id, state, ip); else if( acc.state == state ) ShowNotice("Char-server '%s': Error of Status change - actual status is already the good status (account: %d, status %d, ip: %s).\n", server[id].name, account_id, state, ip); else { ShowNotice("Char-server '%s': Status change (account: %d, new status %d, ip: %s).\n", server[id].name, account_id, state, ip); acc.state = state; // Save accounts->save(accounts, &acc); // notify other servers if (state != 0) { uint8 buf[11]; WBUFW(buf,0) = 0x2731; WBUFL(buf,2) = account_id; WBUFB(buf,6) = 0; // 0: change of state, 1: ban WBUFL(buf,7) = state; // status or final date of a banishment charif_sendallwos(-1, buf, 11); } } } break; case 0x2725: // Receiving of map-server via char-server a ban request if (RFIFOREST(fd) < 18) return 0; { struct mmo_account acc; int account_id = RFIFOL(fd,2); int year = (short)RFIFOW(fd,6); int month = (short)RFIFOW(fd,8); int mday = (short)RFIFOW(fd,10); int hour = (short)RFIFOW(fd,12); int min = (short)RFIFOW(fd,14); int sec = (short)RFIFOW(fd,16); RFIFOSKIP(fd,18); if( !accounts->load_num(accounts, &acc, account_id) ) ShowNotice("Char-server '%s': Error of ban request (account: %d not found, ip: %s).\n", server[id].name, account_id, ip); else { time_t timestamp; struct tm *tmtime; if (acc.unban_time == 0 || acc.unban_time < time(NULL)) timestamp = time(NULL); // new ban else timestamp = acc.unban_time; // add to existing ban tmtime = localtime(×tamp); tmtime->tm_year = tmtime->tm_year + year; tmtime->tm_mon = tmtime->tm_mon + month; tmtime->tm_mday = tmtime->tm_mday + mday; tmtime->tm_hour = tmtime->tm_hour + hour; tmtime->tm_min = tmtime->tm_min + min; tmtime->tm_sec = tmtime->tm_sec + sec; timestamp = mktime(tmtime); if (timestamp == -1) ShowNotice("Char-server '%s': Error of ban request (account: %d, invalid date, ip: %s).\n", server[id].name, account_id, ip); else if( timestamp <= time(NULL) || timestamp == 0 ) ShowNotice("Char-server '%s': Error of ban request (account: %d, new date unbans the account, ip: %s).\n", server[id].name, account_id, ip); else { uint8 buf[11]; char tmpstr[24]; timestamp2string(tmpstr, sizeof(tmpstr), timestamp, login_config.date_format); ShowNotice("Char-server '%s': Ban request (account: %d, new final date of banishment: %d (%s), ip: %s).\n", server[id].name, account_id, timestamp, tmpstr, ip); acc.unban_time = timestamp; // Save accounts->save(accounts, &acc); WBUFW(buf,0) = 0x2731; WBUFL(buf,2) = account_id; WBUFB(buf,6) = 1; // 0: change of status, 1: ban WBUFL(buf,7) = (uint32)timestamp; // status or final date of a banishment charif_sendallwos(-1, buf, 11); } } } break; case 0x2727: // Change of sex (sex is reversed) if( RFIFOREST(fd) < 6 ) return 0; { struct mmo_account acc; int account_id = RFIFOL(fd,2); RFIFOSKIP(fd,6); if( !accounts->load_num(accounts, &acc, account_id) ) ShowNotice("Char-server '%s': Error of sex change (account: %d not found, ip: %s).\n", server[id].name, account_id, ip); else if( acc.sex == 'S' ) ShowNotice("Char-server '%s': Error of sex change - account to change is a Server account (account: %d, ip: %s).\n", server[id].name, account_id, ip); else { unsigned char buf[7]; char sex = ( acc.sex == 'M' ) ? 'F' : 'M'; //Change gender ShowNotice("Char-server '%s': Sex change (account: %d, new sex %c, ip: %s).\n", server[id].name, account_id, sex, ip); acc.sex = sex; // Save accounts->save(accounts, &acc); // announce to other servers WBUFW(buf,0) = 0x2723; WBUFL(buf,2) = account_id; WBUFB(buf,6) = sex_str2num(sex); charif_sendallwos(-1, buf, 7); } } break; case 0x2728: // We receive account_reg2 from a char-server, and we send them to other map-servers. if( RFIFOREST(fd) < 4 || RFIFOREST(fd) < RFIFOW(fd,2) ) return 0; { struct mmo_account acc; int account_id = RFIFOL(fd,4); if( !accounts->load_num(accounts, &acc, account_id) ) ShowStatus("Char-server '%s': receiving (from the char-server) of account_reg2 (account: %d not found, ip: %s).\n", server[id].name, account_id, ip); else { int len; int p; ShowNotice("char-server '%s': receiving (from the char-server) of account_reg2 (account: %d, ip: %s).\n", server[id].name, account_id, ip); for( j = 0, p = 13; j < ACCOUNT_REG2_NUM && p < RFIFOW(fd,2); ++j ) { sscanf((char*)RFIFOP(fd,p), "%31c%n", acc.account_reg2[j].str, &len); acc.account_reg2[j].str[len]='\0'; p +=len+1; //+1 to skip the '\0' between strings. sscanf((char*)RFIFOP(fd,p), "%255c%n", acc.account_reg2[j].value, &len); acc.account_reg2[j].value[len]='\0'; p +=len+1; remove_control_chars(acc.account_reg2[j].str); remove_control_chars(acc.account_reg2[j].value); } acc.account_reg2_num = j; // Save accounts->save(accounts, &acc); // Sending information towards the other char-servers. RFIFOW(fd,0) = 0x2729;// reusing read buffer charif_sendallwos(fd, RFIFOP(fd,0), RFIFOW(fd,2)); } RFIFOSKIP(fd,RFIFOW(fd,2)); } break; case 0x272a: // Receiving of map-server via char-server an unban request if( RFIFOREST(fd) < 6 ) return 0; { struct mmo_account acc; int account_id = RFIFOL(fd,2); RFIFOSKIP(fd,6); if( !accounts->load_num(accounts, &acc, account_id) ) ShowNotice("Char-server '%s': Error of UnBan request (account: %d not found, ip: %s).\n", server[id].name, account_id, ip); else if( acc.unban_time == 0 ) ShowNotice("Char-server '%s': Error of UnBan request (account: %d, no change for unban date, ip: %s).\n", server[id].name, account_id, ip); else { ShowNotice("Char-server '%s': UnBan request (account: %d, ip: %s).\n", server[id].name, account_id, ip); acc.unban_time = 0; accounts->save(accounts, &acc); } } break; case 0x272b: // Set account_id to online [Wizputer] if( RFIFOREST(fd) < 6 ) return 0; add_online_user(id, RFIFOL(fd,2)); RFIFOSKIP(fd,6); break; case 0x272c: // Set account_id to offline [Wizputer] if( RFIFOREST(fd) < 6 ) return 0; remove_online_user(RFIFOL(fd,2)); RFIFOSKIP(fd,6); break; case 0x272d: // Receive list of all online accounts. [Skotlex] if (RFIFOREST(fd) < 4 || RFIFOREST(fd) < RFIFOW(fd,2)) return 0; { struct online_login_data *p; int aid; uint32 i, users; online_db->foreach(online_db, online_db_setoffline, id); //Set all chars from this char-server offline first users = RFIFOW(fd,4); for (i = 0; i < users; i++) { aid = RFIFOL(fd,6+i*4); p = idb_ensure(online_db, aid, create_online_user); p->char_server = id; if (p->waiting_disconnect != INVALID_TIMER) { delete_timer(p->waiting_disconnect, waiting_disconnect_timer); p->waiting_disconnect = INVALID_TIMER; } } } RFIFOSKIP(fd,RFIFOW(fd,2)); break; case 0x272e: //Request account_reg2 for a character. if (RFIFOREST(fd) < 10) return 0; { struct mmo_account acc; size_t off; int account_id = RFIFOL(fd,2); int char_id = RFIFOL(fd,6); RFIFOSKIP(fd,10); WFIFOHEAD(fd,ACCOUNT_REG2_NUM*sizeof(struct global_reg)); WFIFOW(fd,0) = 0x2729; WFIFOL(fd,4) = account_id; WFIFOL(fd,8) = char_id; WFIFOB(fd,12) = 1; //Type 1 for Account2 registry off = 13; if( accounts->load_num(accounts, &acc, account_id) ) { for( j = 0; j < acc.account_reg2_num; j++ ) { if( acc.account_reg2[j].str[0] != '\0' ) { off += sprintf((char*)WFIFOP(fd,off), "%s", acc.account_reg2[j].str)+1; //We add 1 to consider the '\0' in place. off += sprintf((char*)WFIFOP(fd,off), "%s", acc.account_reg2[j].value)+1; } } } WFIFOW(fd,2) = (uint16)off; WFIFOSET(fd,WFIFOW(fd,2)); } break; case 0x2736: // WAN IP update from char-server if( RFIFOREST(fd) < 6 ) return 0; server[id].ip = ntohl(RFIFOL(fd,2)); ShowInfo("Updated IP of Server #%d to %d.%d.%d.%d.\n",id, CONVIP(server[id].ip)); RFIFOSKIP(fd,6); break; case 0x2737: //Request to set all offline. ShowInfo("Setting accounts from char-server %d offline.\n", id); online_db->foreach(online_db, online_db_setoffline, id); RFIFOSKIP(fd,2); break; default: ShowError("parse_fromchar: Unknown packet 0x%x from a char-server! Disconnecting!\n", command); set_eof(fd); return 0; } // switch } // while return 0; } //------------------------------------- // Make new account //------------------------------------- int mmo_auth_new(const char* userid, const char* pass, const char sex, const char* last_ip) { static int num_regs = 0; // registration counter static unsigned int new_reg_tick = 0; unsigned int tick = gettick(); struct mmo_account acc; //Account Registration Flood Protection by [Kevin] if( new_reg_tick == 0 ) new_reg_tick = gettick(); if( DIFF_TICK(tick, new_reg_tick) < 0 && num_regs >= allowed_regs ) { ShowNotice("Account registration denied (registration limit exceeded)\n"); return 3; } if( login_config.new_acc_length_limit && ( strlen(userid) < 4 || strlen(pass) < 4 ) ) return 1; // check for invalid inputs if( sex != 'M' && sex != 'F' ) return 0; // 0 = Unregistered ID // check if the account doesn't exist already if( accounts->load_str(accounts, &acc, userid) ) { ShowNotice("Attempt of creation of an already existant account (account: %s_%c, pass: %s, received pass: %s)\n", userid, sex, acc.pass, pass); return 1; // 1 = Incorrect Password } memset(&acc, '\0', sizeof(acc)); acc.account_id = -1; // assigned by account db safestrncpy(acc.userid, userid, sizeof(acc.userid)); safestrncpy(acc.pass, pass, sizeof(acc.pass)); acc.sex = sex; safestrncpy(acc.email, "a@a.com", sizeof(acc.email)); acc.expiration_time = ( login_config.start_limited_time != -1 ) ? time(NULL) + login_config.start_limited_time : 0; safestrncpy(acc.lastlogin, "0000-00-00 00:00:00", sizeof(acc.lastlogin)); safestrncpy(acc.last_ip, last_ip, sizeof(acc.last_ip)); safestrncpy(acc.birthdate, "0000-00-00", sizeof(acc.birthdate)); if( !accounts->create(accounts, &acc) ) return 0; ShowNotice("Account creation (account %s, id: %d, pass: %s, sex: %c)\n", acc.userid, acc.account_id, acc.pass, acc.sex); if( DIFF_TICK(tick, new_reg_tick) > 0 ) {// Update the registration check. num_regs = 0; new_reg_tick = tick + time_allowed*1000; } ++num_regs; return -1; } //----------------------------------------------------- // Check/authentication of a connection //----------------------------------------------------- int mmo_auth(struct login_session_data* sd, bool isServer) { struct mmo_account acc; int len; char ip[16]; ip2str(session[sd->fd]->client_addr, ip); // DNS Blacklist check if( login_config.use_dnsbl ) { char r_ip[16]; char ip_dnsbl[256]; char* dnsbl_serv; uint8* sin_addr = (uint8*)&session[sd->fd]->client_addr; sprintf(r_ip, "%u.%u.%u.%u", sin_addr[0], sin_addr[1], sin_addr[2], sin_addr[3]); for( dnsbl_serv = strtok(login_config.dnsbl_servs,","); dnsbl_serv != NULL; dnsbl_serv = strtok(NULL,",") ) { sprintf(ip_dnsbl, "%s.%s", r_ip, trim(dnsbl_serv)); if( host2ip(ip_dnsbl) ) { ShowInfo("DNSBL: (%s) Blacklisted. User Kicked.\n", r_ip); return 3; } } } //Client Version check if( login_config.check_client_version && sd->version != login_config.client_version_to_connect ) return 5; len = strnlen(sd->userid, NAME_LENGTH); // Account creation with _M/_F if( login_config.new_account_flag ) { if( len > 2 && strnlen(sd->passwd, NAME_LENGTH) > 0 && // valid user and password lengths sd->passwdenc == 0 && // unencoded password sd->userid[len-2] == '_' && memchr("FfMm", sd->userid[len-1], 4) ) // _M/_F suffix { int result; // remove the _M/_F suffix len -= 2; sd->userid[len] = '\0'; result = mmo_auth_new(sd->userid, sd->passwd, TOUPPER(sd->userid[len+1]), ip); if( result != -1 ) return result;// Failed to make account. [Skotlex]. } } if( !accounts->load_str(accounts, &acc, sd->userid) ) { ShowNotice("Unknown account (account: %s, received pass: %s, ip: %s)\n", sd->userid, sd->passwd, ip); return 0; // 0 = Unregistered ID } if( !check_password(sd->md5key, sd->passwdenc, sd->passwd, acc.pass) ) { ShowNotice("Invalid password (account: '%s', pass: '%s', received pass: '%s', ip: %s)\n", sd->userid, acc.pass, sd->passwd, ip); return 1; // 1 = Incorrect Password } if( acc.expiration_time != 0 && acc.expiration_time < time(NULL) ) { ShowNotice("Connection refused (account: %s, pass: %s, expired ID, ip: %s)\n", sd->userid, sd->passwd, ip); return 2; // 2 = This ID is expired } if( acc.unban_time != 0 && acc.unban_time > time(NULL) ) { char tmpstr[24]; timestamp2string(tmpstr, sizeof(tmpstr), acc.unban_time, login_config.date_format); ShowNotice("Connection refused (account: %s, pass: %s, banned until %s, ip: %s)\n", sd->userid, sd->passwd, tmpstr, ip); return 6; // 6 = Your are Prohibited to log in until %s } if( acc.state != 0 ) { ShowNotice("Connection refused (account: %s, pass: %s, state: %d, ip: %s)\n", sd->userid, sd->passwd, acc.state, ip); return acc.state - 1; } if( login_config.client_hash_check && !isServer ) { struct client_hash_node *node = login_config.client_hash_nodes; bool match = false; if( !sd->has_client_hash ) { ShowNotice("Client doesn't sent client hash (account: %s, pass: %s, ip: %s)\n", sd->userid, sd->passwd, acc.state, ip); return 5; } while( node ) { if( node->group_id <= acc.group_id && memcmp(node->hash, sd->client_hash, 16) == 0 ) { match = true; break; } node = node->next; } if( !match ) { char smd5[33]; int i; for( i = 0; i < 16; i++ ) sprintf(&smd5[i * 2], "%02x", sd->client_hash[i]); ShowNotice("Invalid client hash (account: %s, pass: %s, sent md5: %d, ip: %s)\n", sd->userid, sd->passwd, smd5, ip); return 5; } } ShowNotice("Authentication accepted (account: %s, id: %d, ip: %s)\n", sd->userid, acc.account_id, ip); // update session data sd->account_id = acc.account_id; sd->login_id1 = rnd(); sd->login_id2 = rnd(); safestrncpy(sd->lastlogin, acc.lastlogin, sizeof(sd->lastlogin)); sd->sex = acc.sex; sd->group_id = acc.group_id; // update account data timestamp2string(acc.lastlogin, sizeof(acc.lastlogin), time(NULL), "%Y-%m-%d %H:%M:%S"); safestrncpy(acc.last_ip, ip, sizeof(acc.last_ip)); acc.unban_time = 0; acc.logincount++; accounts->save(accounts, &acc); if( sd->sex != 'S' && sd->account_id < START_ACCOUNT_NUM ) ShowWarning("Account %s has account id %d! Account IDs must be over %d to work properly!\n", sd->userid, sd->account_id, START_ACCOUNT_NUM); return -1; // account OK } void login_auth_ok(struct login_session_data* sd) { int fd = sd->fd; uint32 ip = session[fd]->client_addr; uint8 server_num, n; uint32 subnet_char_ip; struct auth_node* node; int i; if( runflag != LOGINSERVER_ST_RUNNING ) { // players can only login while running WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x81; WFIFOB(fd,2) = 1;// server closed WFIFOSET(fd,3); return; } if( login_config.group_id_to_connect >= 0 && sd->group_id != login_config.group_id_to_connect ) { ShowStatus("Connection refused: the required group id for connection is %d (account: %s, group: %d).\n", login_config.group_id_to_connect, sd->userid, sd->group_id); WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x81; WFIFOB(fd,2) = 1; // 01 = Server closed WFIFOSET(fd,3); return; } else if( login_config.min_group_id_to_connect >= 0 && login_config.group_id_to_connect == -1 && sd->group_id < login_config.min_group_id_to_connect ) { ShowStatus("Connection refused: the minium group id required for connection is %d (account: %s, group: %d).\n", login_config.min_group_id_to_connect, sd->userid, sd->group_id); WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x81; WFIFOB(fd,2) = 1; // 01 = Server closed WFIFOSET(fd,3); return; } server_num = 0; for( i = 0; i < ARRAYLENGTH(server); ++i ) if( session_isActive(server[i].fd) ) server_num++; if( server_num == 0 ) {// if no char-server, don't send void list of servers, just disconnect the player with proper message ShowStatus("Connection refused: there is no char-server online (account: %s).\n", sd->userid); WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x81; WFIFOB(fd,2) = 1; // 01 = Server closed WFIFOSET(fd,3); return; } { struct online_login_data* data = (struct online_login_data*)idb_get(online_db, sd->account_id); if( data ) {// account is already marked as online! if( data->char_server > -1 ) {// Request char servers to kick this account out. [Skotlex] uint8 buf[6]; ShowNotice("User '%s' is already online - Rejected.\n", sd->userid); WBUFW(buf,0) = 0x2734; WBUFL(buf,2) = sd->account_id; charif_sendallwos(-1, buf, 6); if( data->waiting_disconnect == INVALID_TIMER ) data->waiting_disconnect = add_timer(gettick()+AUTH_TIMEOUT, waiting_disconnect_timer, sd->account_id, 0); WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x81; WFIFOB(fd,2) = 8; // 08 = Server still recognizes your last login WFIFOSET(fd,3); return; } else if( data->char_server == -1 ) {// client has authed but did not access char-server yet // wipe previous session idb_remove(auth_db, sd->account_id); remove_online_user(sd->account_id); data = NULL; } } } login_log(ip, sd->userid, 100, "login ok"); ShowStatus("Connection of the account '%s' accepted.\n", sd->userid); WFIFOHEAD(fd,47+32*server_num); WFIFOW(fd,0) = 0x69; WFIFOW(fd,2) = 47+32*server_num; WFIFOL(fd,4) = sd->login_id1; WFIFOL(fd,8) = sd->account_id; WFIFOL(fd,12) = sd->login_id2; WFIFOL(fd,16) = 0; // in old version, that was for ip (not more used) //memcpy(WFIFOP(fd,20), sd->lastlogin, 24); // in old version, that was for name (not more used) memset(WFIFOP(fd,20), 0, 24); WFIFOW(fd,44) = 0; // unknown WFIFOB(fd,46) = sex_str2num(sd->sex); for( i = 0, n = 0; i < ARRAYLENGTH(server); ++i ) { if( !session_isValid(server[i].fd) ) continue; subnet_char_ip = lan_subnetcheck(ip); // Advanced subnet check [LuzZza] WFIFOL(fd,47+n*32) = htonl((subnet_char_ip) ? subnet_char_ip : server[i].ip); WFIFOW(fd,47+n*32+4) = ntows(htons(server[i].port)); // [!] LE byte order here [!] memcpy(WFIFOP(fd,47+n*32+6), server[i].name, 20); WFIFOW(fd,47+n*32+26) = server[i].users; WFIFOW(fd,47+n*32+28) = server[i].type; WFIFOW(fd,47+n*32+30) = server[i].new_; n++; } WFIFOSET(fd,47+32*server_num); // create temporary auth entry CREATE(node, struct auth_node, 1); node->account_id = sd->account_id; node->login_id1 = sd->login_id1; node->login_id2 = sd->login_id2; node->sex = sd->sex; node->ip = ip; node->version = sd->version; node->clienttype = sd->clienttype; idb_put(auth_db, sd->account_id, node); { struct online_login_data* data; // mark client as 'online' data = add_online_user(-1, sd->account_id); // schedule deletion of this node data->waiting_disconnect = add_timer(gettick()+AUTH_TIMEOUT, waiting_disconnect_timer, sd->account_id, 0); } } void login_auth_failed(struct login_session_data* sd, int result) { int fd = sd->fd; uint32 ip = session[fd]->client_addr; if (login_config.log_login) { const char* error; switch( result ) { case 0: error = "Unregistered ID."; break; // 0 = Unregistered ID case 1: error = "Incorrect Password."; break; // 1 = Incorrect Password case 2: error = "Account Expired."; break; // 2 = This ID is expired case 3: error = "Rejected from server."; break; // 3 = Rejected from Server case 4: error = "Blocked by GM."; break; // 4 = You have been blocked by the GM Team case 5: error = "Not latest game EXE."; break; // 5 = Your Game's EXE file is not the latest version case 6: error = "Banned."; break; // 6 = Your are Prohibited to log in until %s case 7: error = "Server Over-population."; break; // 7 = Server is jammed due to over populated case 8: error = "Account limit from company"; break; // 8 = No more accounts may be connected from this company case 9: error = "Ban by DBA"; break; // 9 = MSI_REFUSE_BAN_BY_DBA case 10: error = "Email not confirmed"; break; // 10 = MSI_REFUSE_EMAIL_NOT_CONFIRMED case 11: error = "Ban by GM"; break; // 11 = MSI_REFUSE_BAN_BY_GM case 12: error = "Working in DB"; break; // 12 = MSI_REFUSE_TEMP_BAN_FOR_DBWORK case 13: error = "Self Lock"; break; // 13 = MSI_REFUSE_SELF_LOCK case 14: error = "Not Permitted Group"; break; // 14 = MSI_REFUSE_NOT_PERMITTED_GROUP case 15: error = "Not Permitted Group"; break; // 15 = MSI_REFUSE_NOT_PERMITTED_GROUP case 99: error = "Account gone."; break; // 99 = This ID has been totally erased case 100: error = "Login info remains."; break; // 100 = Login information remains at %s case 101: error = "Hacking investigation."; break; // 101 = Account has been locked for a hacking investigation. Please contact the GM Team for more information case 102: error = "Bug investigation."; break; // 102 = This account has been temporarily prohibited from login due to a bug-related investigation case 103: error = "Deleting char."; break; // 103 = This character is being deleted. Login is temporarily unavailable for the time being case 104: error = "Deleting spouse char."; break; // 104 = This character is being deleted. Login is temporarily unavailable for the time being default : error = "Unknown Error."; break; } login_log(ip, sd->userid, result, error); } if( result == 1 && login_config.dynamic_pass_failure_ban ) ipban_log(ip); // log failed password attempt WFIFOHEAD(fd,23); WFIFOW(fd,0) = 0x6a; WFIFOB(fd,2) = (uint8)result; if( result != 6 ) memset(WFIFOP(fd,3), '\0', 20); else {// 6 = Your are Prohibited to log in until %s struct mmo_account acc; time_t unban_time = ( accounts->load_str(accounts, &acc, sd->userid) ) ? acc.unban_time : 0; timestamp2string((char*)WFIFOP(fd,3), 20, unban_time, login_config.date_format); } WFIFOSET(fd,23); } //---------------------------------------------------------------------------------------- // Default packet parsing (normal players or char-server connection requests) //---------------------------------------------------------------------------------------- int parse_login(int fd) { struct login_session_data* sd = (struct login_session_data*)session[fd]->session_data; int result; char ip[16]; uint32 ipl = session[fd]->client_addr; ip2str(ipl, ip); if( session[fd]->flag.eof ) { ShowInfo("Closed connection from '"CL_WHITE"%s"CL_RESET"'.\n", ip); do_close(fd); return 0; } if( sd == NULL ) { // Perform ip-ban check if( login_config.ipban && ipban_check(ipl) ) { ShowStatus("Connection refused: IP isn't authorised (deny/allow, ip: %s).\n", ip); login_log(ipl, "unknown", -3, "ip banned"); WFIFOHEAD(fd,23); WFIFOW(fd,0) = 0x6a; WFIFOB(fd,2) = 3; // 3 = Rejected from Server WFIFOSET(fd,23); set_eof(fd); return 0; } // create a session for this new connection CREATE(session[fd]->session_data, struct login_session_data, 1); sd = (struct login_session_data*)session[fd]->session_data; sd->fd = fd; } while( RFIFOREST(fd) >= 2 ) { uint16 command = RFIFOW(fd,0); switch( command ) { case 0x0200: // New alive packet: structure: 0x200 .24B. used to verify if client is always alive. if (RFIFOREST(fd) < 26) return 0; RFIFOSKIP(fd,26); break; // client md5 hash (binary) case 0x0204: // S 0204 .16B (kRO 2004-05-31aSakexe langtype 0 and 6) if (RFIFOREST(fd) < 18) return 0; sd->has_client_hash = 1; memcpy(sd->client_hash, RFIFOP(fd, 2), 16); RFIFOSKIP(fd,18); break; // request client login (raw password) case 0x0064: // S 0064 .L .24B .24B .B case 0x0277: // S 0277 .L .24B .24B .B .16B .13B case 0x02b0: // S 02b0 .L .24B .24B .B .16B .13B .B // request client login (md5-hashed password) case 0x01dd: // S 01dd .L .24B .16B .B case 0x01fa: // S 01fa .L .24B .16B .B .B(index of the connection in the clientinfo file (+10 if the command-line contains "pc")) case 0x027c: // S 027c .L .24B .16B .B .13B(junk) case 0x0825: // S 0825 .W .L .B .24B .27B .17B .15B .(packetsize - 0x5C)B { size_t packet_len = RFIFOREST(fd); if( (command == 0x0064 && packet_len < 55) || (command == 0x0277 && packet_len < 84) || (command == 0x02b0 && packet_len < 85) || (command == 0x01dd && packet_len < 47) || (command == 0x01fa && packet_len < 48) || (command == 0x027c && packet_len < 60) || (command == 0x0825 && (packet_len < 4 || packet_len < RFIFOW(fd, 2))) ) return 0; } { uint32 version; char username[NAME_LENGTH]; char password[NAME_LENGTH]; unsigned char passhash[16]; uint8 clienttype; bool israwpass = (command==0x0064 || command==0x0277 || command==0x02b0 || command == 0x0825); // Shinryo: For the time being, just use token as password. if(command == 0x0825) { char *accname = (char *)RFIFOP(fd, 9); char *token = (char *)RFIFOP(fd, 0x5C); size_t uAccLen = strlen(accname); size_t uTokenLen = RFIFOREST(fd) - 0x5C; version = RFIFOL(fd,4); if(uAccLen > NAME_LENGTH - 1 || uAccLen <= 0 || uTokenLen > NAME_LENGTH - 1 || uTokenLen <= 0) { login_auth_failed(sd, 3); return 0; } safestrncpy(username, accname, uAccLen + 1); safestrncpy(password, token, uTokenLen + 1); clienttype = RFIFOB(fd, 8); } else { version = RFIFOL(fd,2); safestrncpy(username, (const char*)RFIFOP(fd,6), NAME_LENGTH); if( israwpass ) { safestrncpy(password, (const char*)RFIFOP(fd,30), NAME_LENGTH); clienttype = RFIFOB(fd,54); } else { memcpy(passhash, RFIFOP(fd,30), 16); clienttype = RFIFOB(fd,46); } } RFIFOSKIP(fd,RFIFOREST(fd)); // assume no other packet was sent sd->clienttype = clienttype; sd->version = version; safestrncpy(sd->userid, username, NAME_LENGTH); if( israwpass ) { ShowStatus("Request for connection of %s (ip: %s).\n", sd->userid, ip); safestrncpy(sd->passwd, password, NAME_LENGTH); if( login_config.use_md5_passwds ) MD5_String(sd->passwd, sd->passwd); sd->passwdenc = 0; } else { ShowStatus("Request for connection (passwdenc mode) of %s (ip: %s).\n", sd->userid, ip); bin2hex(sd->passwd, passhash, 16); // raw binary data here! sd->passwdenc = PASSWORDENC; } if( sd->passwdenc != 0 && login_config.use_md5_passwds ) { login_auth_failed(sd, 3); // send "rejected from server" return 0; } result = mmo_auth(sd, false); if( result == -1 ) login_auth_ok(sd); else login_auth_failed(sd, result); } break; case 0x01db: // Sending request of the coding key RFIFOSKIP(fd,2); { memset(sd->md5key, '\0', sizeof(sd->md5key)); sd->md5keylen = (uint16)(12 + rnd() % 4); MD5_Salt(sd->md5keylen, sd->md5key); WFIFOHEAD(fd,4 + sd->md5keylen); WFIFOW(fd,0) = 0x01dc; WFIFOW(fd,2) = 4 + sd->md5keylen; memcpy(WFIFOP(fd,4), sd->md5key, sd->md5keylen); WFIFOSET(fd,WFIFOW(fd,2)); } break; case 0x2710: // Connection request of a char-server if (RFIFOREST(fd) < 86) return 0; { char server_name[20]; char message[256]; uint32 server_ip; uint16 server_port; uint16 type; uint16 new_; safestrncpy(sd->userid, (char*)RFIFOP(fd,2), NAME_LENGTH); safestrncpy(sd->passwd, (char*)RFIFOP(fd,26), NAME_LENGTH); if( login_config.use_md5_passwds ) MD5_String(sd->passwd, sd->passwd); sd->passwdenc = 0; sd->version = login_config.client_version_to_connect; // hack to skip version check server_ip = ntohl(RFIFOL(fd,54)); server_port = ntohs(RFIFOW(fd,58)); safestrncpy(server_name, (char*)RFIFOP(fd,60), 20); type = RFIFOW(fd,82); new_ = RFIFOW(fd,84); RFIFOSKIP(fd,86); ShowInfo("Connection request of the char-server '%s' @ %u.%u.%u.%u:%u (account: '%s', pass: '%s', ip: '%s')\n", server_name, CONVIP(server_ip), server_port, sd->userid, sd->passwd, ip); sprintf(message, "charserver - %s@%u.%u.%u.%u:%u", server_name, CONVIP(server_ip), server_port); login_log(session[fd]->client_addr, sd->userid, 100, message); result = mmo_auth(sd, true); if( runflag == LOGINSERVER_ST_RUNNING && result == -1 && sd->sex == 'S' && sd->account_id >= 0 && sd->account_id < ARRAYLENGTH(server) && !session_isValid(server[sd->account_id].fd) ) { ShowStatus("Connection of the char-server '%s' accepted.\n", server_name); safestrncpy(server[sd->account_id].name, server_name, sizeof(server[sd->account_id].name)); server[sd->account_id].fd = fd; server[sd->account_id].ip = server_ip; server[sd->account_id].port = server_port; server[sd->account_id].users = 0; server[sd->account_id].type = type; server[sd->account_id].new_ = new_; session[fd]->func_parse = parse_fromchar; session[fd]->flag.server = 1; realloc_fifo(fd, FIFOSIZE_SERVERLINK, FIFOSIZE_SERVERLINK); // send connection success WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x2711; WFIFOB(fd,2) = 0; WFIFOSET(fd,3); } else { ShowNotice("Connection of the char-server '%s' REFUSED.\n", server_name); WFIFOHEAD(fd,3); WFIFOW(fd,0) = 0x2711; WFIFOB(fd,2) = 3; WFIFOSET(fd,3); } } return 0; // processing will continue elsewhere default: ShowNotice("Abnormal end of connection (ip: %s): Unknown packet 0x%x\n", ip, command); set_eof(fd); return 0; } } return 0; } void login_set_defaults() { login_config.login_ip = INADDR_ANY; login_config.login_port = 6900; login_config.ipban_cleanup_interval = 60; login_config.ip_sync_interval = 0; login_config.log_login = true; safestrncpy(login_config.date_format, "%Y-%m-%d %H:%M:%S", sizeof(login_config.date_format)); login_config.console = false; login_config.new_account_flag = true; login_config.new_acc_length_limit = true; login_config.use_md5_passwds = false; login_config.group_id_to_connect = -1; login_config.min_group_id_to_connect = -1; login_config.check_client_version = false; login_config.client_version_to_connect = 20; login_config.ipban = true; login_config.dynamic_pass_failure_ban = true; login_config.dynamic_pass_failure_ban_interval = 5; login_config.dynamic_pass_failure_ban_limit = 7; login_config.dynamic_pass_failure_ban_duration = 5; login_config.use_dnsbl = false; safestrncpy(login_config.dnsbl_servs, "", sizeof(login_config.dnsbl_servs)); safestrncpy(login_config.account_engine, "auto", sizeof(login_config.account_engine)); login_config.client_hash_check = 0; login_config.client_hash_nodes = NULL; } //----------------------------------- // Reading main configuration file //----------------------------------- int login_config_read(const char* cfgName) { char line[1024], w1[1024], w2[1024]; FILE* fp = fopen(cfgName, "r"); if (fp == NULL) { ShowError("Configuration file (%s) not found.\n", cfgName); return 1; } ShowInfo("Reading configuration file %s...\n", cfgName); while(fgets(line, sizeof(line), fp)) { if (line[0] == '/' && line[1] == '/') continue; if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) < 2) continue; if(!strcmpi(w1,"timestamp_format")) strncpy(timestamp_format, w2, 20); else if(!strcmpi(w1,"stdout_with_ansisequence")) stdout_with_ansisequence = config_switch(w2); else if(!strcmpi(w1,"console_silent")) { ShowInfo("Console Silent Setting: %d\n", atoi(w2)); msg_silent = atoi(w2); } else if( !strcmpi(w1, "bind_ip") ) { char ip_str[16]; login_config.login_ip = host2ip(w2); if( login_config.login_ip ) ShowStatus("Login server binding IP address : %s -> %s\n", w2, ip2str(login_config.login_ip, ip_str)); } else if( !strcmpi(w1, "login_port") ) { login_config.login_port = (uint16)atoi(w2); ShowStatus("set login_port : %s\n",w2); } else if(!strcmpi(w1, "log_login")) login_config.log_login = (bool)config_switch(w2); else if(!strcmpi(w1, "new_account")) login_config.new_account_flag = (bool)config_switch(w2); else if(!strcmpi(w1, "new_acc_length_limit")) login_config.new_acc_length_limit = (bool)config_switch(w2); else if(!strcmpi(w1, "start_limited_time")) login_config.start_limited_time = atoi(w2); else if(!strcmpi(w1, "check_client_version")) login_config.check_client_version = (bool)config_switch(w2); else if(!strcmpi(w1, "client_version_to_connect")) login_config.client_version_to_connect = strtoul(w2, NULL, 10); else if(!strcmpi(w1, "use_MD5_passwords")) login_config.use_md5_passwds = (bool)config_switch(w2); else if(!strcmpi(w1, "group_id_to_connect")) login_config.group_id_to_connect = atoi(w2); else if(!strcmpi(w1, "min_group_id_to_connect")) login_config.min_group_id_to_connect = atoi(w2); else if(!strcmpi(w1, "date_format")) safestrncpy(login_config.date_format, w2, sizeof(login_config.date_format)); else if(!strcmpi(w1, "console")) login_config.console = (bool)config_switch(w2); else if(!strcmpi(w1, "allowed_regs")) //account flood protection system allowed_regs = atoi(w2); else if(!strcmpi(w1, "time_allowed")) time_allowed = atoi(w2); else if(!strcmpi(w1, "use_dnsbl")) login_config.use_dnsbl = (bool)config_switch(w2); else if(!strcmpi(w1, "dnsbl_servers")) safestrncpy(login_config.dnsbl_servs, w2, sizeof(login_config.dnsbl_servs)); else if(!strcmpi(w1, "ipban_cleanup_interval")) login_config.ipban_cleanup_interval = (unsigned int)atoi(w2); else if(!strcmpi(w1, "ip_sync_interval")) login_config.ip_sync_interval = (unsigned int)1000*60*atoi(w2); //w2 comes in minutes. else if(!strcmpi(w1, "client_hash_check")) login_config.client_hash_check = config_switch(w2); else if(!strcmpi(w1, "client_hash")) { int group = 0; char md5[33]; int i; if (sscanf(w2, "%d, %32s", &group, md5) == 2) { struct client_hash_node *nnode; CREATE(nnode, struct client_hash_node, 1); for (i = 0; i < 32; i += 2) { char buf[3]; unsigned int byte; memcpy(buf, &md5[i], 2); buf[2] = 0; sscanf(buf, "%x", &byte); nnode->hash[i / 2] = (uint8)(byte & 0xFF); } nnode->group_id = group; nnode->next = login_config.client_hash_nodes; login_config.client_hash_nodes = nnode; } } else if(!strcmpi(w1, "import")) login_config_read(w2); else if(!strcmpi(w1, "account.engine")) safestrncpy(login_config.account_engine, w2, sizeof(login_config.account_engine)); else {// try the account engines int i; for( i = 0; account_engines[i].constructor; ++i ) { AccountDB* db = account_engines[i].db; if( db && db->set_property(db, w1, w2) ) break; } // try others ipban_config_read(w1, w2); loginlog_config_read(w1, w2); } } fclose(fp); ShowInfo("Finished reading %s.\n", cfgName); return 0; } /// Get the engine selected in the config settings. /// Updates the config setting with the selected engine if 'auto'. static AccountDB* get_account_engine(void) { int i; bool get_first = (strcmp(login_config.account_engine,"auto") == 0); for( i = 0; account_engines[i].constructor; ++i ) { char name[sizeof(login_config.account_engine)]; AccountDB* db = account_engines[i].db; if( db && db->get_property(db, "engine.name", name, sizeof(name)) && (get_first || strcmp(name, login_config.account_engine) == 0) ) { if( get_first ) safestrncpy(login_config.account_engine, name, sizeof(login_config.account_engine)); return db; } } return NULL; } //-------------------------------------- // Function called at exit of the server //-------------------------------------- void do_final(void) { int i; struct client_hash_node *hn = login_config.client_hash_nodes; while (hn) { struct client_hash_node *tmp = hn; hn = hn->next; aFree(tmp); } login_log(0, "login server", 100, "login server shutdown"); ShowStatus("Terminating...\n"); if( login_config.log_login ) loginlog_final(); ipban_final(); for( i = 0; account_engines[i].constructor; ++i ) {// destroy all account engines AccountDB* db = account_engines[i].db; if( db ) { db->destroy(db); account_engines[i].db = NULL; } } accounts = NULL; // destroyed in account_engines online_db->destroy(online_db, NULL); auth_db->destroy(auth_db, NULL); for( i = 0; i < ARRAYLENGTH(server); ++i ) chrif_server_destroy(i); if( login_fd != -1 ) { do_close(login_fd); login_fd = -1; } ShowStatus("Finished.\n"); } //------------------------------ // Function called when the server // has received a crash signal. //------------------------------ void do_abort(void) { } void set_server_type(void) { SERVER_TYPE = ATHENA_SERVER_LOGIN; } /// Called when a terminate signal is received. void do_shutdown(void) { if( runflag != LOGINSERVER_ST_SHUTDOWN ) { int id; runflag = LOGINSERVER_ST_SHUTDOWN; ShowStatus("Shutting down...\n"); // TODO proper shutdown procedure; kick all characters, wait for acks, ... [FlavioJS] for( id = 0; id < ARRAYLENGTH(server); ++id ) chrif_server_reset(id); flush_fifos(); runflag = CORE_ST_STOP; } } //------------------------------ // Login server initialization //------------------------------ int do_init(int argc, char** argv) { int i; // intialize engines (to accept config settings) for( i = 0; account_engines[i].constructor; ++i ) account_engines[i].db = account_engines[i].constructor(); // read login-server configuration login_set_defaults(); login_config_read((argc > 1) ? argv[1] : LOGIN_CONF_NAME); login_lan_config_read((argc > 2) ? argv[2] : LAN_CONF_NAME); rnd_init(); for( i = 0; i < ARRAYLENGTH(server); ++i ) chrif_server_init(i); // initialize logging if( login_config.log_login ) loginlog_init(); // initialize static and dynamic ipban system ipban_init(); // Online user database init online_db = idb_alloc(DB_OPT_RELEASE_DATA); add_timer_func_list(waiting_disconnect_timer, "waiting_disconnect_timer"); // Interserver auth init auth_db = idb_alloc(DB_OPT_RELEASE_DATA); // set default parser as parse_login function set_defaultparse(parse_login); // every 10 minutes cleanup online account db. add_timer_func_list(online_data_cleanup, "online_data_cleanup"); add_timer_interval(gettick() + 600*1000, online_data_cleanup, 0, 0, 600*1000); // add timer to detect ip address change and perform update if (login_config.ip_sync_interval) { add_timer_func_list(sync_ip_addresses, "sync_ip_addresses"); add_timer_interval(gettick() + login_config.ip_sync_interval, sync_ip_addresses, 0, 0, login_config.ip_sync_interval); } // Account database init accounts = get_account_engine(); if( accounts == NULL ) { ShowFatalError("do_init: account engine '%s' not found.\n", login_config.account_engine); exit(EXIT_FAILURE); } else { ShowInfo("Using account engine '%s'.\n", login_config.account_engine); if(!accounts->init(accounts)) { ShowFatalError("do_init: Failed to initialize account engine '%s'.\n", login_config.account_engine); exit(EXIT_FAILURE); } } if( login_config.console ) { //##TODO invoke a CONSOLE_START plugin event } // server port open & binding login_fd = make_listen_bind(login_config.login_ip, login_config.login_port); if( runflag != CORE_ST_STOP ) { shutdown_callback = do_shutdown; runflag = LOGINSERVER_ST_RUNNING; } ShowStatus("The login-server is "CL_GREEN"ready"CL_RESET" (Server is listening on the port %u).\n\n", login_config.login_port); login_log(0, "login server", 100, "login server started"); return 0; }