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-rw-r--r--modules/m_connect.c322
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diff --git a/modules/m_connect.c b/modules/m_connect.c
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+/*
+ * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
+ * m_connect.c: Connects to a remote IRC server.
+ *
+ * Copyright (C) 2002 by the past and present ircd coders, and others.
+ *
+ * This program 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ * $Id$
+ */
+
+#include "stdinc.h"
+#include "client.h"
+#include "ircd.h"
+#include "irc_string.h"
+#include "numeric.h"
+#include "fdlist.h"
+#include "s_bsd.h"
+#include "conf.h"
+#include "log.h"
+#include "s_serv.h"
+#include "send.h"
+#include "parse.h"
+#include "hash.h"
+#include "modules.h"
+
+
+/*
+ * mo_connect - CONNECT command handler
+ *
+ * Added by Jto 11 Feb 1989
+ *
+ * m_connect
+ * parv[0] = sender prefix
+ * parv[1] = servername
+ * parv[2] = port number
+ * parv[3] = remote server
+ */
+static void
+mo_connect(struct Client *client_p, struct Client *source_p,
+ int parc, char *parv[])
+{
+ int port;
+ int tmpport;
+ struct ConfItem *conf = NULL;
+ struct AccessItem *aconf = NULL;
+ const struct Client *target_p = NULL;
+
+ if (EmptyString(parv[1]))
+ {
+ sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
+ me.name, source_p->name, "CONNECT");
+ return;
+ }
+
+ if (parc > 3)
+ {
+ if (!HasOFlag(source_p, OPER_FLAG_REMOTE))
+ {
+ sendto_one(source_p, form_str(ERR_NOPRIVS),
+ me.name, source_p->name, "connect");
+ return;
+ }
+
+ if (hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3,
+ parc, parv) != HUNTED_ISME)
+ return;
+ }
+
+ if ((target_p = hash_find_server(parv[1])))
+ {
+ sendto_one(source_p,
+ ":%s NOTICE %s :Connect: Server %s already exists from %s.",
+ me.name, source_p->name, parv[1], target_p->from->name);
+ return;
+ }
+
+ /*
+ * try to find the name, then host, if both fail notify ops and bail
+ */
+ if ((conf = find_matching_name_conf(SERVER_TYPE,
+ parv[1], NULL, NULL, 0)) != NULL)
+ aconf = (struct AccessItem *)map_to_conf(conf);
+ else if ((conf = find_matching_name_conf(SERVER_TYPE,
+ NULL, NULL, parv[1], 0)) != NULL)
+ aconf = (struct AccessItem *)map_to_conf(conf);
+
+ if (conf == NULL || aconf == NULL)
+ {
+ sendto_one(source_p,
+ ":%s NOTICE %s :Connect: Host %s not listed in ircd.conf",
+ me.name, source_p->name, parv[1]);
+ return;
+ }
+
+ /* Get port number from user, if given. If not specified,
+ * use the default form configuration structure. If missing
+ * from there, then use the precompiled default.
+ */
+ tmpport = port = aconf->port;
+
+ if (parc > 2 && !EmptyString(parv[2]))
+ {
+ if ((port = atoi(parv[2])) <= 0)
+ {
+ sendto_one(source_p, ":%s NOTICE %s :Connect: Illegal port number",
+ me.name, source_p->name);
+ return;
+ }
+ }
+ else if (port <= 0 && (port = PORTNUM) <= 0)
+ {
+ sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number",
+ me.name, source_p->name);
+ return;
+ }
+
+ if (find_servconn_in_progress(conf->name))
+ {
+ sendto_one(source_p, ":%s NOTICE %s :Connect: a connection to %s "
+ "is already in progress.", me.name, source_p->name, conf->name);
+ return;
+ }
+
+ /*
+ * Notify all operators about remote connect requests
+ */
+ ilog(LOG_TYPE_IRCD, "CONNECT From %s : %s %s",
+ source_p->name, parv[1], parv[2] ? parv[2] : "");
+
+ aconf->port = port;
+
+ /* at this point we should be calling connect_server with a valid
+ * C:line and a valid port in the C:line
+ */
+ if (serv_connect(aconf, source_p))
+ {
+ if (!ConfigServerHide.hide_server_ips && HasUMode(source_p, UMODE_ADMIN))
+ sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s[%s].%d",
+ me.name, source_p->name, aconf->host,
+ conf->name, aconf->port);
+ else
+ sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d",
+ me.name, source_p->name, conf->name, aconf->port);
+ }
+ else
+ {
+ sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d",
+ me.name, source_p->name, conf->name, aconf->port);
+ }
+
+ /* client is either connecting with all the data it needs or has been
+ * destroyed
+ */
+ aconf->port = tmpport;
+}
+
+/*
+ * ms_connect - CONNECT command handler
+ *
+ * Added by Jto 11 Feb 1989
+ *
+ * m_connect
+ * parv[0] = sender prefix
+ * parv[1] = servername
+ * parv[2] = port number
+ * parv[3] = remote server
+ */
+static void
+ms_connect(struct Client *client_p, struct Client *source_p,
+ int parc, char *parv[])
+{
+ int port;
+ int tmpport;
+ struct ConfItem *conf = NULL;
+ struct AccessItem *aconf = NULL;
+ const struct Client *target_p = NULL;
+
+ if (hunt_server(client_p, source_p,
+ ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
+ return;
+
+ if (EmptyString(parv[1]))
+ {
+ sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
+ me.name, source_p->name, "CONNECT");
+ return;
+ }
+
+ if ((target_p = hash_find_server(parv[1])))
+ {
+ sendto_one(source_p,
+ ":%s NOTICE %s :Connect: Server %s already exists from %s.",
+ me.name, source_p->name, parv[1], target_p->from->name);
+ return;
+ }
+
+ /*
+ * try to find the name, then host, if both fail notify ops and bail
+ */
+ if ((conf = find_matching_name_conf(SERVER_TYPE,
+ parv[1], NULL, NULL, 0)) != NULL)
+ aconf = map_to_conf(conf);
+ else if ((conf = find_matching_name_conf(SERVER_TYPE,
+ NULL, NULL, parv[1], 0)) != NULL)
+ aconf = map_to_conf(conf);
+
+ if (conf == NULL || aconf == NULL)
+ {
+ sendto_one(source_p,
+ ":%s NOTICE %s :Connect: Host %s not listed in ircd.conf",
+ me.name, source_p->name, parv[1]);
+ return;
+ }
+
+ /* Get port number from user, if given. If not specified,
+ * use the default form configuration structure. If missing
+ * from there, then use the precompiled default.
+ */
+ tmpport = port = aconf->port;
+
+ if (parc > 2 && !EmptyString(parv[2]))
+ {
+ port = atoi(parv[2]);
+
+ /* if someone sends port 0, and we have a config port.. use it */
+ if (port == 0 && aconf->port)
+ port = aconf->port;
+ else if (port <= 0)
+ {
+ sendto_one(source_p, ":%s NOTICE %s :Connect: Illegal port number",
+ me.name, source_p->name);
+ return;
+ }
+ }
+ else if (port <= 0 && (port = PORTNUM) <= 0)
+ {
+ sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number",
+ me.name, source_p->name);
+ return;
+ }
+
+ if (find_servconn_in_progress(conf->name))
+ {
+ sendto_one(source_p, ":%s NOTICE %s :Connect: a connection to %s "
+ "is already in progress.", me.name, source_p->name, conf->name);
+ return;
+ }
+
+ /*
+ * Notify all operators about remote connect requests
+ */
+ sendto_wallops_flags(UMODE_WALLOP, &me, "Remote CONNECT %s %d from %s",
+ parv[1], port, source_p->name);
+ sendto_server(NULL, NOCAPS, CAP_TS6,
+ ":%s WALLOPS :Remote CONNECT %s %d from %s",
+ me.name, parv[1], port, source_p->name);
+ sendto_server(NULL, CAP_TS6, NOCAPS,
+ ":%s WALLOPS :Remote CONNECT %s %d from %s",
+ me.id, parv[1], port, source_p->name);
+
+ ilog(LOG_TYPE_IRCD, "CONNECT From %s : %s %d",
+ source_p->name, parv[1], port);
+
+ aconf->port = port;
+
+ /*
+ * At this point we should be calling connect_server with a valid
+ * C:line and a valid port in the C:line
+ */
+ if (serv_connect(aconf, source_p))
+ sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d",
+ me.name, source_p->name, conf->name, aconf->port);
+ else
+ sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d",
+ me.name, source_p->name, conf->name, aconf->port);
+ /*
+ * Client is either connecting with all the data it needs or has been
+ * destroyed
+ */
+ aconf->port = tmpport;
+}
+
+static struct Message connect_msgtab = {
+ "CONNECT", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
+ { m_unregistered, m_not_oper, ms_connect, m_ignore, mo_connect, m_ignore }
+};
+
+static void
+module_init(void)
+{
+ mod_add_cmd(&connect_msgtab);
+}
+
+static void
+module_exit(void)
+{
+ mod_del_cmd(&connect_msgtab);
+}
+
+struct module module_entry = {
+ .node = { NULL, NULL, NULL },
+ .name = NULL,
+ .version = "$Revision$",
+ .handle = NULL,
+ .modinit = module_init,
+ .modexit = module_exit,
+ .flags = 0
+};
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