int send_from_fifo(int fd)
{
int len;
if( !session_isValid(fd) )
return -1;
if( session[fd]->wdata_size == 0 )
return 0; // nothing to send
len = sSend(fd, (const char *) session[fd]->wdata, (int)session[fd]->wdata_size, 0);
if( len == SOCKET_ERROR )
{//An exception has occured
if( sErrno != S_EWOULDBLOCK ) {
//ShowDebug("send_from_fifo: error %d, ending connection #%d\n", sErrno, fd);
session[fd]->wdata_size = 0; //Clear the send queue as we can't send anymore. [Skotlex]
set_eof(fd);
}
return 0;
}
if( len > 0 )
{
// some data could not be transferred?
// shift unsent data to the beginning of the queue
if( (size_t)len < session[fd]->wdata_size )
memmove(session[fd]->wdata, session[fd]->wdata + len, session[fd]->wdata_size - len);
session[fd]->wdata_size -= len;
}
return 0;
}
int realloc_fifo(int fd, unsigned int rfifo_size, unsigned int wfifo_size)
{
if( !session_isValid(fd) )
return 0;
if( session[fd]->max_rdata != rfifo_size && session[fd]->rdata_size < rfifo_size) {
RECREATE(session[fd]->rdata, unsigned char, rfifo_size);
session[fd]->max_rdata = rfifo_size;
}
static void delete_session(int fd)
{
if(session_isValid(fd)) {
aFree(session[fd]->rdata);
aFree(session[fd]->wdata);
aFree(session[fd]->session_data);
aFree(session[fd]);
session[fd] = NULL;
}
}
/**
* Handles save reg data from map server and distributes accordingly.
*
* @param val either str or int, depending on type
* @param type false when int, true otherwise
**/
void inter_savereg(uint32 account_id, uint32 char_id, const char *key, unsigned int index, intptr_t val, bool is_string)
{
char esc_val[254*2+1];
char esc_key[32*2+1];
Sql_EscapeString(sql_handle, esc_key, key);
if( is_string && val ) {
Sql_EscapeString(sql_handle, esc_val, (char*)val);
}
if( key[0] == '#' && key[1] == '#' ) { // global account reg
if( session_isValid(login_fd) )
chlogif_send_global_accreg(key,index,val,is_string);
else {
ShowError("Login server unavailable, can't perform update on '%s' variable for AID:%d CID:%d\n",key,account_id,char_id);
}
} else if ( key[0] == '#' ) { // local account reg
if( is_string ) {
if( val ) {
if( SQL_ERROR == Sql_Query(sql_handle, "REPLACE INTO `%s` (`account_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%s')", schema_config.acc_reg_str_table, account_id, esc_key, index, esc_val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == Sql_Query(sql_handle, "DELETE FROM `%s` WHERE `account_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", schema_config.acc_reg_str_table, account_id, esc_key, index) )
Sql_ShowDebug(sql_handle);
}
} else {
if( val ) {
if( SQL_ERROR == Sql_Query(sql_handle, "REPLACE INTO `%s` (`account_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%d')", schema_config.acc_reg_num_table, account_id, esc_key, index, (int)val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == Sql_Query(sql_handle, "DELETE FROM `%s` WHERE `account_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", schema_config.acc_reg_num_table, account_id, esc_key, index) )
Sql_ShowDebug(sql_handle);
}
}
} else { /* char reg */
if( is_string ) {
if( val ) {
if( SQL_ERROR == Sql_Query(sql_handle, "REPLACE INTO `%s` (`char_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%s')", schema_config.char_reg_str_table, char_id, esc_key, index, esc_val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == Sql_Query(sql_handle, "DELETE FROM `%s` WHERE `char_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", schema_config.char_reg_str_table, char_id, esc_key, index) )
Sql_ShowDebug(sql_handle);
}
} else {
if( val ) {
if( SQL_ERROR == Sql_Query(sql_handle, "REPLACE INTO `%s` (`char_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%d')", schema_config.char_reg_num_table, char_id, esc_key, index, (int)val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == Sql_Query(sql_handle, "DELETE FROM `%s` WHERE `char_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", schema_config.char_reg_num_table, char_id, esc_key, index) )
Sql_ShowDebug(sql_handle);
}
}
}
}
/**
* Packet send to all char-servers, except one. (wos: without our self)
* @param sfd: fd to discard sending to
* @param buf: packet to send in form of an array buffer
* @param len: size of packet
* @return : the number of char-serv the packet was sent to
*/
int logchrif_sendallwos(int sfd, uint8* buf, size_t len) {
int i, c;
for( i = 0, c = 0; i < ARRAYLENGTH(ch_server); ++i ) {
int fd = ch_server[i].fd;
if( session_isValid(fd) && fd != sfd ){
WFIFOHEAD(fd,len);
memcpy(WFIFOP(fd,0), buf, len);
WFIFOSET(fd,len);
++c;
}
}
return c;
}
static void delete_session(int fd)
{
if( session_isValid(fd) ) {
#ifdef SHOW_SERVER_STATS
socket_data_qi -= session[fd]->rdata_size - session[fd]->rdata_pos;
socket_data_qo -= session[fd]->wdata_size;
#endif
aFree(session[fd]->rdata);
aFree(session[fd]->wdata);
aFree(session[fd]->session_data);
aFree(session[fd]);
session[fd] = NULL;
}
}
/**
* Handles save reg data from map server and distributes accordingly.
*
* @param val either str or int, depending on type
* @param type false when int, true otherwise
**/
void inter_savereg(int account_id, int char_id, const char *key, unsigned int index, intptr_t val, bool is_string) {
/* to login server we go! */
if( key[0] == '#' && key[1] == '#' ) {/* global account reg */
if( session_isValid(login_fd) )
global_accreg_to_login_add(key,index,val,is_string);
else {
ShowError("Login server unavailable, cant perform update on '%s' variable for AID:%d CID:%d\n",key,account_id,char_id);
}
} else if ( key[0] == '#' ) {/* local account reg */
if( is_string ) {
if( val ) {
if( SQL_ERROR == SQL->Query(sql_handle, "REPLACE INTO `%s` (`account_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%s')", acc_reg_str_db, account_id, key, index, (char*)val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == SQL->Query(sql_handle, "DELETE FROM `%s` WHERE `account_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", acc_reg_str_db, account_id, key, index) )
Sql_ShowDebug(sql_handle);
}
} else {
if( val ) {
if( SQL_ERROR == SQL->Query(sql_handle, "REPLACE INTO `%s` (`account_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%d')", acc_reg_num_db, account_id, key, index, (int)val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == SQL->Query(sql_handle, "DELETE FROM `%s` WHERE `account_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", acc_reg_num_db, account_id, key, index) )
Sql_ShowDebug(sql_handle);
}
}
} else { /* char reg */
if( is_string ) {
if( val ) {
if( SQL_ERROR == SQL->Query(sql_handle, "REPLACE INTO `%s` (`char_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%s')", char_reg_str_db, char_id, key, index, (char*)val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == SQL->Query(sql_handle, "DELETE FROM `%s` WHERE `char_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", char_reg_str_db, char_id, key, index) )
Sql_ShowDebug(sql_handle);
}
} else {
if( val ) {
if( SQL_ERROR == SQL->Query(sql_handle, "REPLACE INTO `%s` (`char_id`,`key`,`index`,`value`) VALUES ('%d','%s','%u','%d')", char_reg_num_db, char_id, key, index, (int)val) )
Sql_ShowDebug(sql_handle);
} else {
if( SQL_ERROR == SQL->Query(sql_handle, "DELETE FROM `%s` WHERE `char_id` = '%d' AND `key` = '%s' AND `index` = '%u' LIMIT 1", char_reg_num_db, char_id, key, index) )
Sql_ShowDebug(sql_handle);
}
}
}
}
int send_from_fifo(int fd)
{
int len;
if( !session_isValid(fd) )
return -1;
if( session[fd]->wdata_size == 0 )
return 0; // nothing to send
len = sSend(fd, (const char *) session[fd]->wdata, (int)session[fd]->wdata_size, MSG_NOSIGNAL);
if( len == SOCKET_ERROR )
{ //An exception has occured
if( sErrno != S_EWOULDBLOCK ) {
//ShowDebug("send_from_fifo: %s, ending connection #%d\n", error_msg(), fd);
#ifdef SHOW_SERVER_STATS
socket_data_qo -= session[fd]->wdata_size;
#endif
session[fd]->wdata_size = 0; //Clear the send queue as we can't send anymore. [Skotlex]
set_eof(fd);
}
return 0;
}
if( len > 0 )
{
// some data could not be transferred?
// shift unsent data to the beginning of the queue
if( (size_t)len < session[fd]->wdata_size )
memmove(session[fd]->wdata, session[fd]->wdata + len, session[fd]->wdata_size - len);
session[fd]->wdata_size -= len;
#ifdef SHOW_SERVER_STATS
socket_data_o += len;
socket_data_qo -= len;
if (!session[fd]->flag.server)
{
socket_data_co += len;
}
#endif
}
return 0;
}
static void delete_session(int fd)
{
if( session_isValid(fd) ) {
unsigned int i;
#ifdef SHOW_SERVER_STATS
socket_data_qi -= session[fd]->rdata_size - session[fd]->rdata_pos;
socket_data_qo -= session[fd]->wdata_size;
#endif
aFree(session[fd]->rdata);
aFree(session[fd]->wdata);
if( session[fd]->session_data )
aFree(session[fd]->session_data);
for(i = 0; i < session[fd]->hdatac; i++) {
if( session[fd]->hdata[i]->flag.free ) {
aFree(session[fd]->hdata[i]->data);
aFree(session[fd]->hdata[i]);
}
}
if( session[fd]->hdata )
aFree(session[fd]->hdata);
aFree(session[fd]);
session[fd] = NULL;
}
}
static int send_from_fifo(int fd)
{
int len;
if( !session_isValid(fd) )
return -1;
// if (s->eof) // if we close connection, we can not send last information (you're been disconnected, etc...) [Yor]
// return -1;
/*
// clear write buffer if not connected <- I really like more the idea of sending the last information. [Skotlex]
if( session[fd]->eof )
{
session[fd]->wdata_size = 0;
return -1;
}
*/
if (session[fd]->wdata_size == 0)
return 0;
#ifdef __WIN32
len=send(fd, (const char *)session[fd]->wdata,session[fd]->wdata_size, 0);
if (len == SOCKET_ERROR) {
if (WSAGetLastError() == WSAECONNABORTED) {
ShowWarning("send_from_fifo: software de conexao cancelado na sessao #%d\n", fd);
session[fd]->wdata_size = 0; //Clear the send queue as we can't send anymore. [Skotlex]
set_eof(fd);
FD_CLR(fd, &readfds); //Remove the socket so the select() won't hang on it.
}
if (WSAGetLastError() != WSAEWOULDBLOCK) {
// ShowDebug("send_from_fifo: error %d, ending connection #%d\n", WSAGetLastError(), fd);
session[fd]->wdata_size = 0; //Clear the send queue as we can't send anymore. [Skotlex]
set_eof(fd);
}
return 0;
}
#else
len=write(fd,session[fd]->wdata,session[fd]->wdata_size);
if (len == -1)
{
if (errno == ECONNABORTED)
{
ShowFatalError("send_from_fifo: Quebra de conexao (software de conexao cancelado na sessao #%d)\n", fd);
session[fd]->wdata_size = 0; //Clear the send queue as we can't send anymore. [Skotlex]
set_eof(fd);
}
if (errno != EAGAIN) {
// perror("closing session: send_from_fifo");
session[fd]->wdata_size = 0; //Clear the send queue as we can't send anymore. [Skotlex]
set_eof(fd);
}
return 0;
}
#endif
//{ int i; ShowMessage("send %d : ",fd); for(i=0;i<len;i++){ ShowMessage("%02x ",session[fd]->wdata[i]); } ShowMessage("\n");}
if(len>0){
if((unsigned int)len<session[fd]->wdata_size){
memmove(session[fd]->wdata,session[fd]->wdata+len,session[fd]->wdata_size-len);
session[fd]->wdata_size-=len;
} else {
session[fd]->wdata_size=0;
}
}
return 0;
}
/**
* Auth successful, inform client and create a temp auth_node.
* @param sd: player session
*/
static void logclif_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 PACKETVER < 20170315
int cmd = 0x69; // AC_ACCEPT_LOGIN
int header = 47;
int size = 32;
#else
int cmd = 0xac4; // AC_ACCEPT_LOGIN3
int header = 64;
int size = 160;
#endif
if( runflag != LOGINSERVER_ST_RUNNING ){
// players can only login while running
logclif_sent_auth_result(fd,1); // server closed
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);
logclif_sent_auth_result(fd,1); // server closed
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 minimum group id required for connection is %d (account: %s, group: %d).\n", login_config.min_group_id_to_connect, sd->userid, sd->group_id);
logclif_sent_auth_result(fd,1); // server closed
return;
}
server_num = 0;
for( i = 0; i < ARRAYLENGTH(ch_server); ++i )
if( session_isActive(ch_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);
logclif_sent_auth_result(fd,1); // server closed
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;
logchrif_sendallwos(-1, buf, 6);
if( data->waiting_disconnect == INVALID_TIMER )
data->waiting_disconnect = add_timer(gettick()+AUTH_TIMEOUT, login_waiting_disconnect_timer, sd->account_id, 0);
logclif_sent_auth_result(fd,8); // 08 = Server still recognizes your last login
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);
login_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,header+size*server_num);
WFIFOW(fd,0) = cmd;
WFIFOW(fd,2) = header+size*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);
#if PACKETVER >= 20170315
memset(WFIFOP(fd,47),0,17); // Unknown
#endif
for( i = 0, n = 0; i < ARRAYLENGTH(ch_server); ++i ) {
if( !session_isValid(ch_server[i].fd) )
continue;
subnet_char_ip = lan_subnetcheck(ip); // Advanced subnet check [LuzZza]
WFIFOL(fd,header+n*size) = htonl((subnet_char_ip) ? subnet_char_ip : ch_server[i].ip);
WFIFOW(fd,header+n*size+4) = ntows(htons(ch_server[i].port)); // [!] LE byte order here [!]
memcpy(WFIFOP(fd,header+n*size+6), ch_server[i].name, 20);
WFIFOW(fd,header+n*size+26) = ch_server[i].users;
WFIFOW(fd,header+n*size+28) = ch_server[i].type;
WFIFOW(fd,header+n*size+30) = ch_server[i].new_;
#if PACKETVER >= 20170315
memset(WFIFOP(fd, header+n*size+32), 0, 128); // Unknown
#endif
n++;
}
WFIFOSET(fd,header+size*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->clienttype = sd->clienttype;
idb_put(auth_db, sd->account_id, node);
{
struct online_login_data* data;
// mark client as 'online'
data = login_add_online_user(-1, sd->account_id);
// schedule deletion of this node
data->waiting_disconnect = add_timer(gettick()+AUTH_TIMEOUT, login_waiting_disconnect_timer, sd->account_id, 0);
}
}
/**
* Char-server request to connect to the login-server.
* This is needed to exchange packets.
* @param fd: file descriptor to parse from (client)
* @param sd: client session
* @param ip: ipv4 address (client)
* @return 0 packet received too shirt, 1 success
*/
static int logclif_parse_reqcharconnec(int fd, struct login_session_data *sd, char* ip){
if (RFIFOREST(fd) < 86)
return 0;
else {
int result;
char server_name[20];
char message[256];
uint32 server_ip;
uint16 server_port;
uint16 type;
uint16 new_;
safestrncpy(sd->userid, RFIFOCP(fd,2), NAME_LENGTH);
safestrncpy(sd->passwd, RFIFOCP(fd,26), NAME_LENGTH);
if( login_config.use_md5_passwds )
MD5_String(sd->passwd, sd->passwd);
sd->passwdenc = 0;
server_ip = ntohl(RFIFOL(fd,54));
server_port = ntohs(RFIFOW(fd,58));
safestrncpy(server_name, RFIFOCP(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', ip: '%s')\n", server_name, CONVIP(server_ip), server_port, sd->userid, 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 = login_mmo_auth(sd, true);
if( runflag == LOGINSERVER_ST_RUNNING &&
result == -1 &&
sd->sex == 'S' &&
sd->account_id < ARRAYLENGTH(ch_server) &&
!session_isValid(ch_server[sd->account_id].fd) )
{
ShowStatus("Connection of the char-server '%s' accepted.\n", server_name);
safestrncpy(ch_server[sd->account_id].name, server_name, sizeof(ch_server[sd->account_id].name));
ch_server[sd->account_id].fd = fd;
ch_server[sd->account_id].ip = server_ip;
ch_server[sd->account_id].port = server_port;
ch_server[sd->account_id].users = 0;
ch_server[sd->account_id].type = type;
ch_server[sd->account_id].new_ = new_;
session[fd]->func_parse = logchrif_parse;
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 1;
}