1 /* ircd_sock.c - NextIRCd
2 * Copyright (C) 2012-2013 Philipp Kreil (pk910)
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "ircd_config.h"
19 #include "ircd_sock.h"
20 #include "ircd_client.h"
21 #include "ircd_parse.h"
22 #include "ircd_auth.h"
23 #include "struct_connection.h"
24 #include "struct_client.h"
25 #include "struct_auth.h"
27 #include "IOHandler/IOSockets.h"
32 #include <stdio.h> // @debug
34 static struct Connection *sockets_listening = NULL;
35 static struct Connection *sockets_first = NULL;
36 static struct Connection *sockets_last = NULL;
38 static CONFRELOAD_CALLBACK(sockets_config_reload);
39 static IOSOCKET_CALLBACK(sockets_iohandler_callback);
40 static void sockets_free_connection(struct Connection *sock);
43 reload_config_callback(sockets_config_reload);
44 sockets_config_reload(); /* open all listening sockets */
48 static void sockets_append_list(struct Connection *conn) {
50 conn->next = sockets_listening;
51 sockets_listening = conn;
54 conn->prev = sockets_last;
56 sockets_last->next = conn;
63 static void sockets_remove_list(struct Connection *conn) {
65 struct Connection *prev;
66 if(sockets_listening == conn)
67 sockets_listening = conn->next;
69 for(prev = sockets_listening; prev; prev = prev->next) {
70 if(prev->next == conn)
74 prev->next = conn->next;
78 conn->next->prev = conn->prev;
80 sockets_last = conn->prev;
82 conn->prev->next = conn->next;
84 sockets_first = conn->next;
88 static void sockets_free_connection(struct Connection *conn) {
92 static void sockets_close_listening() {
93 struct Connection *conn;
94 while((conn = sockets_listening)) {
95 sockets_remove_list(conn);
96 iosocket_close(conn->socket);
97 sockets_free_connection(conn);
101 static int sockets_add_listening(struct ConfigPortObject *conf_port, char *bind_addr, char *certfile, char *keyfile, int socket_flags) {
105 struct IOSocket *iosock;
106 if(!conf_port->secure)
107 iosock = iosocket_listen_flags(bind_addr, conf_port->port, sockets_iohandler_callback, socket_flags);
108 else if(certfile && keyfile)
109 iosock = iosocket_listen_ssl_flags(bind_addr, conf_port->port, certfile, keyfile, sockets_iohandler_callback, socket_flags);
116 printf("Added Listener Socket to Port %d.\n", conf_port->port); // @debug
118 struct Connection *connection;
119 connection = calloc(1, sizeof(*connection));
120 connection->listening = 1;
121 connection->socket = iosock;
122 connection->server = conf_port->server;
123 iosock->data = connection;
124 sockets_append_list(connection);
128 static void sockets_accept_client(struct IOSocket *new_client, struct Connection *listener) {
129 struct Connection *connection;
130 connection = calloc(1, sizeof(*connection));
131 connection->socket = new_client;
132 connection->ssl = new_client->ssl;
134 new_client->parse_delimiter = 1;
135 new_client->parse_empty = 0;
136 strcpy((char*) new_client->delimiters, "\r\n");
138 connection->parent = listener;
139 new_client->data = connection;
140 sockets_append_list(connection);
142 auth_new(connection);
145 static CONFRELOAD_CALLBACK(sockets_config_reload) {
146 struct ConfigPortObject *conf_port;
147 char *certfile, *keyfile;
149 sockets_close_listening();
151 certfile = NULL; /* to be continued */
154 for(conf_port = global_config.ports; conf_port; conf_port = conf_port->next) {
155 printf("port: %d\n", conf_port->port); // @debug
157 //add 2 listeners (IPv4 & IPv6) here
158 if(!conf_port->ip4only) {
159 char *bind_addr = conf_port->bind_addr;
162 sockets_add_listening(conf_port, bind_addr, certfile, keyfile, IOSOCKET_ADDR_IPV6);
165 if(!conf_port->ip6only) {
166 char *bind_addr = conf_port->bind_addr;
168 bind_addr = "0.0.0.0";
169 sockets_add_listening(conf_port, bind_addr, certfile, keyfile, IOSOCKET_ADDR_IPV4);
174 static IOSOCKET_CALLBACK(sockets_iohandler_callback) {
175 struct Connection *connection = event->socket->data;
177 switch(event->type) {
178 case IOSOCKETEVENT_ACCEPT:
179 sockets_accept_client(event->data.accept_socket, connection);
182 case IOSOCKETEVENT_NOTCONNECTED:
183 case IOSOCKETEVENT_CLOSED:
184 sockets_remove_list(connection);
185 if(connection->server) {
187 } else if(connection->authed) {
188 connection->data.client->conn = NULL;
189 client_exit(connection->data.client, "Client disconnected.");
191 connection->data.auth->conn = NULL;
192 auth_abort(connection->data.auth);
194 sockets_free_connection(connection);
197 case IOSOCKETEVENT_DNSFAILED:
198 if(connection->listening) {
199 // listening socket could not be opened
201 sockets_remove_list(connection);
202 sockets_free_connection(connection);
206 case IOSOCKETEVENT_RECV:
207 if(connection->server)
208 parse_server_data(connection->data.server, event->data.recv_buf);
209 else if(connection->authed)
210 parse_client_data(connection->data.client, event->data.recv_str);
212 parse_unauth_data(connection->data.auth, event->data.recv_str);
220 void socket_send(struct Connection *conn, char *data, int len) {
221 iosocket_send(conn->socket, data, len);
224 void socket_printf(struct Connection *conn, const char *text, ...) {
229 va_start(arg_list, text);
230 pos = vsnprintf(sendBuf, 512 - 2, text, arg_list);
232 if (pos < 0 || pos > (512 - 2)) pos = 512 - 2;
234 sendBuf[pos+1] = '\0';
235 iosocket_send(conn->socket, sendBuf, pos+1);
238 void socket_close(struct Connection *conn) {
239 iosocket_close(conn->socket);
240 sockets_free_connection(conn);
243 void socket_set_server(struct Connection *conn) {
244 struct IOSocket *iosock = conn->socket;
245 iosock->parse_delimiter = 0;