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"
25 #include "IOHandler/IOSockets.h"
29 #include <stdio.h> // @debug
31 static struct Connection *sockets_listening = NULL;
32 static struct Connection *sockets_first = NULL;
33 static struct Connection *sockets_last = NULL;
35 static CONFRELOAD_CALLBACK(sockets_config_reload);
36 static IOSOCKET_CALLBACK(sockets_iohandler_callback);
37 static void sockets_free_connection(struct Connection *sock);
40 reload_config_callback(sockets_config_reload);
41 sockets_config_reload(); /* open all listening sockets */
45 static void sockets_append_list(struct Connection *conn) {
47 conn->next = sockets_listening;
48 sockets_listening = conn;
51 conn->prev = sockets_last;
53 sockets_last->next = conn;
60 static void sockets_remove_list(struct Connection *conn) {
62 struct Connection *prev;
63 if(sockets_listening == conn)
64 sockets_listening = conn->next;
66 for(prev = sockets_listening; prev; prev = prev->next) {
67 if(prev->next == conn)
71 prev->next = conn->next;
75 conn->next->prev = conn->prev;
77 sockets_last = conn->prev;
79 conn->prev->next = conn->next;
81 sockets_first = conn->next;
85 static void sockets_free_connection(struct Connection *conn) {
89 static void sockets_close_listening() {
90 struct Connection *conn;
91 while((conn = sockets_listening)) {
92 sockets_remove_list(conn);
93 iosocket_close(conn->socket);
94 sockets_free_connection(conn);
98 static int sockets_add_listening(struct ConfigPortObject *conf_port, char *bind_addr, char *certfile, char *keyfile, int socket_flags) {
102 struct IOSocket *iosock;
103 if(!conf_port->secure)
104 iosock = iosocket_listen_flags(bind_addr, conf_port->port, sockets_iohandler_callback, socket_flags);
105 else if(certfile && keyfile)
106 iosock = iosocket_listen_ssl_flags(bind_addr, conf_port->port, certfile, keyfile, sockets_iohandler_callback, socket_flags);
113 printf("Added Listener Socket to Port %d.\n", conf_port->port); // @debug
115 struct Connection *connection;
116 connection = calloc(1, sizeof(*connection));
117 connection->listening = 1;
118 connection->socket = iosock;
119 connection->server = conf_port->server;
120 iosock->data = connection;
121 sockets_append_list(connection);
125 static void sockets_accept_client(struct IOSocket *new_client, struct Connection *listener) {
126 struct Connection *connection;
127 connection = calloc(1, sizeof(*connection));
128 connection->socket = new_client;
129 connection->ssl = new_client->ssl;
131 new_client->parse_delimiter = 1;
132 new_client->parse_empty = 0;
133 strcpy((char*) new_client->delimiters, "\r\n");
135 connection->parent = listener;
136 new_client->data = connection;
137 sockets_append_list(connection);
139 auth_new(connection);
142 static CONFRELOAD_CALLBACK(sockets_config_reload) {
143 struct ConfigPortObject *conf_port;
144 char *certfile, *keyfile;
146 sockets_close_listening();
148 certfile = NULL; /* to be continued */
151 for(conf_port = global_config.ports; conf_port; conf_port = conf_port->next) {
152 printf("port: %d\n", conf_port->port); // @debug
154 //add 2 listeners (IPv4 & IPv6) here
155 if(!conf_port->ip4only) {
156 char *bind_addr = conf_port->bind_addr;
159 sockets_add_listening(conf_port, bind_addr, certfile, keyfile, IOSOCKET_ADDR_IPV6);
162 if(!conf_port->ip6only) {
163 char *bind_addr = conf_port->bind_addr;
165 bind_addr = "0.0.0.0";
166 sockets_add_listening(conf_port, bind_addr, certfile, keyfile, IOSOCKET_ADDR_IPV4);
171 static IOSOCKET_CALLBACK(sockets_iohandler_callback) {
172 struct Connection *connection = event->socket->data;
174 switch(event->type) {
175 case IOSOCKETEVENT_ACCEPT:
176 sockets_accept_client(event->data.accept_socket, connection);
179 case IOSOCKETEVENT_NOTCONNECTED:
180 case IOSOCKETEVENT_CLOSED:
181 sockets_remove_list(connection);
182 if(connection->server) {
184 } else if(connection->authed) {
185 connection->data.client->conn = NULL;
186 client_exit(connection->data.client, "Client disconnected.");
188 connection->data.auth->conn = NULL;
189 auth_abort(connection->data.auth);
191 sockets_free_connection(connection);
194 case IOSOCKETEVENT_DNSFAILED:
195 if(connection->listening) {
196 // listening socket could not be opened
198 sockets_remove_list(connection);
199 client_disconnected(connection);
200 sockets_free_connection(connection);
204 case IOSOCKETEVENT_RECV:
205 if(connection->server)
206 parse_server_data(connection->data.server, event->data.recv_buf);
207 else if(connection->authed)
208 parse_client_data(connection->data.client, event->data.recv_str);
210 parse_unauth_data(connection->data.auth, event->data.recv_str);
218 void socket_send(struct Connection *conn, char *data, int len) {
219 iosocket_send(conn->socket, data, len);
222 void socket_printf(struct Connection *conn, const char *text, ...) {
227 va_start(arg_list, text);
228 pos = vsnprintf(sendBuf, 512 - 2, text, arg_list);
230 if (pos < 0 || pos > (512 - 2)) pos = CLIENT_MAXLEN - 2;
232 sendBuf[pos+1] = '\0';
233 iosocket_send(conn->socket, sendBuf, pos+1);
236 void socket_close(struct Connection *conn) {
237 iosocket_close(conn->socket);
238 sockets_free_connection(conn);
241 void socket_set_server(struct Connection *conn) {
242 struct IOSocket *iosock = conn->socket;
243 iosock->parse_delimiter = 0;