]>
Commit | Line | Data |
---|---|---|
212380e3 | 1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_connect.c: Connects to a remote IRC server. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
24 | * $Id: m_connect.c 254 2005-09-21 23:35:12Z nenolod $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "client.h" | |
29 | #include "ircd.h" | |
30 | #include "irc_string.h" | |
31 | #include "numeric.h" | |
32 | #include "commio.h" | |
33 | #include "s_conf.h" | |
34 | #include "s_newconf.h" | |
35 | #include "s_log.h" | |
36 | #include "s_serv.h" | |
37 | #include "send.h" | |
38 | #include "msg.h" | |
39 | #include "parse.h" | |
40 | #include "hash.h" | |
41 | #include "modules.h" | |
42 | ||
43 | static int mo_connect(struct Client *, struct Client *, int, const char **); | |
44 | static int ms_connect(struct Client *, struct Client *, int, const char **); | |
45 | ||
46 | struct Message connect_msgtab = { | |
47 | "CONNECT", 0, 0, 0, MFLG_SLOW, | |
48 | {mg_unreg, mg_not_oper, {ms_connect, 4}, {ms_connect, 4}, mg_ignore, {mo_connect, 2}} | |
49 | }; | |
50 | ||
51 | mapi_clist_av1 connect_clist[] = { &connect_msgtab, NULL }; | |
52 | DECLARE_MODULE_AV1(connect, NULL, NULL, connect_clist, NULL, NULL, "$Revision: 254 $"); | |
53 | ||
54 | /* | |
55 | * mo_connect - CONNECT command handler | |
56 | * | |
57 | * Added by Jto 11 Feb 1989 | |
58 | * | |
59 | * m_connect | |
60 | * parv[0] = sender prefix | |
61 | * parv[1] = servername | |
62 | * parv[2] = port number | |
63 | * parv[3] = remote server | |
64 | */ | |
65 | static int | |
66 | mo_connect(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
67 | { | |
68 | int port; | |
69 | int tmpport; | |
70 | struct server_conf *server_p; | |
71 | struct Client *target_p; | |
72 | ||
73 | /* always privileged with handlers */ | |
74 | ||
75 | if(MyConnect(source_p) && !IsOperRemote(source_p) && parc > 3) | |
76 | { | |
77 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
78 | me.name, source_p->name, "remote"); | |
79 | return 0; | |
80 | } | |
81 | ||
82 | if(hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME) | |
83 | return 0; | |
84 | ||
85 | if((target_p = find_server(source_p, parv[1]))) | |
86 | { | |
87 | sendto_one(source_p, ":%s NOTICE %s :Connect: Server %s already exists from %s.", | |
88 | me.name, parv[0], parv[1], target_p->from->name); | |
89 | return 0; | |
90 | } | |
91 | ||
92 | /* | |
93 | * try to find the name, then host, if both fail notify ops and bail | |
94 | */ | |
95 | if((server_p = find_server_conf(parv[1])) == NULL) | |
96 | { | |
97 | sendto_one(source_p, | |
98 | "NOTICE %s :Connect: Host %s not listed in ircd.conf", | |
99 | parv[0], parv[1]); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | /* | |
104 | * Get port number from user, if given. If not specified, | |
105 | * use the default form configuration structure. If missing | |
106 | * from there, then use the precompiled default. | |
107 | */ | |
108 | tmpport = port = server_p->port; | |
109 | if(parc > 2 && !EmptyString(parv[2])) | |
110 | { | |
111 | if((port = atoi(parv[2])) <= 0) | |
112 | { | |
113 | sendto_one(source_p, "NOTICE %s :Connect: Illegal port number", parv[0]); | |
114 | return 0; | |
115 | } | |
116 | } | |
117 | else if(port <= 0 && (port = PORTNUM) <= 0) | |
118 | { | |
119 | sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number", | |
120 | me.name, parv[0]); | |
121 | return 0; | |
122 | } | |
123 | /* | |
124 | * Notify all operators about remote connect requests | |
125 | */ | |
126 | ||
127 | ilog(L_SERVER, "CONNECT From %s : %s %s", parv[0], parv[1], parc > 2 ? parv[2] : ""); | |
128 | ||
129 | server_p->port = port; | |
130 | /* | |
131 | * at this point we should be calling connect_server with a valid | |
132 | * C:line and a valid port in the C:line | |
133 | */ | |
134 | if(serv_connect(server_p, source_p)) | |
135 | { | |
136 | #ifndef HIDE_SERVERS_IPS | |
137 | sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s[%s].%d", | |
138 | me.name, parv[0], server_p->host, server_p->name, server_p->port); | |
139 | #else | |
140 | sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d", | |
141 | me.name, parv[0], server_p->name, server_p->port); | |
142 | #endif | |
143 | ||
144 | } | |
145 | else | |
146 | { | |
147 | sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d", | |
148 | me.name, parv[0], server_p->name, server_p->port); | |
149 | ||
150 | } | |
151 | ||
152 | /* | |
153 | * client is either connecting with all the data it needs or has been | |
154 | * destroyed | |
155 | */ | |
156 | server_p->port = tmpport; | |
157 | return 0; | |
158 | } | |
159 | ||
160 | /* | |
161 | * ms_connect - CONNECT command handler | |
162 | * | |
163 | * Added by Jto 11 Feb 1989 | |
164 | * | |
165 | * m_connect | |
166 | * parv[0] = sender prefix | |
167 | * parv[1] = servername | |
168 | * parv[2] = port number | |
169 | * parv[3] = remote server | |
170 | */ | |
171 | static int | |
172 | ms_connect(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
173 | { | |
174 | int port; | |
175 | int tmpport; | |
176 | struct server_conf *server_p; | |
177 | struct Client *target_p; | |
178 | ||
179 | if(hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME) | |
180 | return 0; | |
181 | ||
182 | if((target_p = find_server(NULL, parv[1]))) | |
183 | { | |
184 | sendto_one_notice(source_p, ":Connect: Server %s already exists from %s.", | |
185 | parv[1], target_p->from->name); | |
186 | return 0; | |
187 | } | |
188 | ||
189 | /* | |
190 | * try to find the name, then host, if both fail notify ops and bail | |
191 | */ | |
192 | if((server_p = find_server_conf(parv[1])) == NULL) | |
193 | { | |
194 | sendto_one_notice(source_p, ":Connect: Host %s not listed in ircd.conf", | |
195 | parv[1]); | |
196 | return 0; | |
197 | } | |
198 | ||
199 | /* | |
200 | * Get port number from user, if given. If not specified, | |
201 | * use the default form configuration structure. If missing | |
202 | * from there, then use the precompiled default. | |
203 | */ | |
204 | tmpport = server_p->port; | |
205 | ||
206 | port = atoi(parv[2]); | |
207 | ||
208 | /* if someone sends port 0, and we have a config port.. use it */ | |
209 | if(port == 0 && server_p->port) | |
210 | port = server_p->port; | |
211 | else if(port <= 0) | |
212 | { | |
213 | sendto_one_notice(source_p, ":Connect: Illegal port number"); | |
214 | return 0; | |
215 | } | |
216 | ||
217 | /* | |
218 | * Notify all operators about remote connect requests | |
219 | */ | |
220 | sendto_wallops_flags(UMODE_WALLOP, &me, | |
221 | "Remote CONNECT %s %d from %s", | |
222 | parv[1], port, source_p->name); | |
223 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
224 | ":%s WALLOPS :Remote CONNECT %s %d from %s", | |
225 | me.id, parv[1], port, source_p->name); | |
226 | sendto_server(NULL, NULL, NOCAPS, CAP_TS6, | |
227 | ":%s WALLOPS :Remote CONNECT %s %d from %s", | |
228 | me.name, parv[1], port, source_p->name); | |
229 | ||
230 | ilog(L_SERVER, "CONNECT From %s : %s %d", source_p->name, parv[1], port); | |
231 | ||
232 | server_p->port = port; | |
233 | /* | |
234 | * at this point we should be calling connect_server with a valid | |
235 | * C:line and a valid port in the C:line | |
236 | */ | |
237 | if(serv_connect(server_p, source_p)) | |
238 | sendto_one_notice(source_p, ":*** Connecting to %s.%d", | |
239 | server_p->name, server_p->port); | |
240 | else | |
241 | sendto_one_notice(source_p, ":*** Couldn't connect to %s.%d", | |
242 | server_p->name, server_p->port); | |
243 | /* | |
244 | * client is either connecting with all the data it needs or has been | |
245 | * destroyed | |
246 | */ | |
247 | server_p->port = tmpport; | |
248 | return 0; | |
249 | } |