1 |
adx |
30 |
/* |
2 |
michael |
2916 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
adx |
30 |
* |
4 |
michael |
2916 |
* Copyright (c) 1997-2014 ircd-hybrid development team |
5 |
adx |
30 |
* |
6 |
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* This program is free software; you can redistribute it and/or modify |
7 |
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* it under the terms of the GNU General Public License as published by |
8 |
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* the Free Software Foundation; either version 2 of the License, or |
9 |
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* (at your option) any later version. |
10 |
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* |
11 |
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* This program is distributed in the hope that it will be useful, |
12 |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
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* GNU General Public License for more details. |
15 |
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* |
16 |
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* You should have received a copy of the GNU General Public License |
17 |
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* along with this program; if not, write to the Free Software |
18 |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
19 |
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* USA |
20 |
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*/ |
21 |
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22 |
michael |
2916 |
/*! \file s_serv.c |
23 |
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* \brief Server related functions. |
24 |
|
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* \version $Id$ |
25 |
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*/ |
26 |
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|
27 |
adx |
30 |
#include "stdinc.h" |
28 |
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#ifdef HAVE_LIBCRYPTO |
29 |
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#include <openssl/rsa.h> |
30 |
|
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#include "rsa.h" |
31 |
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#endif |
32 |
michael |
1011 |
#include "list.h" |
33 |
adx |
30 |
#include "channel.h" |
34 |
|
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#include "channel_mode.h" |
35 |
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#include "client.h" |
36 |
|
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#include "dbuf.h" |
37 |
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#include "event.h" |
38 |
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#include "fdlist.h" |
39 |
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#include "hash.h" |
40 |
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#include "irc_string.h" |
41 |
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#include "ircd.h" |
42 |
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#include "ircd_defs.h" |
43 |
|
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#include "s_bsd.h" |
44 |
|
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#include "numeric.h" |
45 |
|
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#include "packet.h" |
46 |
|
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#include "irc_res.h" |
47 |
michael |
1309 |
#include "conf.h" |
48 |
adx |
30 |
#include "s_serv.h" |
49 |
michael |
1309 |
#include "log.h" |
50 |
michael |
1303 |
#include "s_misc.h" |
51 |
adx |
30 |
#include "s_user.h" |
52 |
|
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#include "send.h" |
53 |
|
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#include "memory.h" |
54 |
michael |
2916 |
#include "channel.h" |
55 |
michael |
1243 |
#include "parse.h" |
56 |
adx |
30 |
|
57 |
|
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#define MIN_CONN_FREQ 300 |
58 |
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|
59 |
michael |
2156 |
dlink_list flatten_links; |
60 |
adx |
30 |
static dlink_list cap_list = { NULL, NULL, 0 }; |
61 |
|
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static void server_burst(struct Client *); |
62 |
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static void burst_all(struct Client *); |
63 |
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static void send_tb(struct Client *client_p, struct Channel *chptr); |
64 |
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65 |
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static CNCB serv_connect_callback; |
66 |
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67 |
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static void burst_members(struct Client *, struct Channel *); |
68 |
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69 |
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/* |
70 |
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* write_links_file |
71 |
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* |
72 |
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* inputs - void pointer which is not used |
73 |
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* output - NONE |
74 |
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* side effects - called from an event, write out list of linked servers |
75 |
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* but in no particular order. |
76 |
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*/ |
77 |
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void |
78 |
michael |
2156 |
write_links_file(void *notused) |
79 |
adx |
30 |
{ |
80 |
michael |
2156 |
FILE *file = NULL; |
81 |
michael |
2216 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
82 |
michael |
2156 |
char buff[IRCD_BUFSIZE] = { '\0' }; |
83 |
adx |
30 |
|
84 |
michael |
2156 |
if ((file = fopen(LIPATH, "w")) == NULL) |
85 |
adx |
30 |
return; |
86 |
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|
87 |
michael |
2156 |
DLINK_FOREACH_SAFE(ptr, ptr_next, flatten_links.head) |
88 |
adx |
30 |
{ |
89 |
michael |
2156 |
dlinkDelete(ptr, &flatten_links); |
90 |
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MyFree(ptr->data); |
91 |
|
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free_dlink_node(ptr); |
92 |
adx |
30 |
} |
93 |
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|
94 |
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DLINK_FOREACH(ptr, global_serv_list.head) |
95 |
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{ |
96 |
michael |
1325 |
const struct Client *target_p = ptr->data; |
97 |
adx |
30 |
|
98 |
michael |
2156 |
/* |
99 |
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* Skip hidden servers, aswell as ourselves, since we already send |
100 |
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* ourselves in /links |
101 |
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*/ |
102 |
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if (IsHidden(target_p) || IsMe(target_p)) |
103 |
adx |
30 |
continue; |
104 |
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|
105 |
michael |
1851 |
if (HasFlag(target_p, FLAGS_SERVICE) && ConfigServerHide.hide_services) |
106 |
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continue; |
107 |
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|
108 |
michael |
1545 |
/* |
109 |
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* Attempt to format the file in such a way it follows the usual links output |
110 |
adx |
30 |
* ie "servername uplink :hops info" |
111 |
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* Mostly for aesthetic reasons - makes it look pretty in mIRC ;) |
112 |
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* - madmax |
113 |
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*/ |
114 |
michael |
2156 |
snprintf(buff, sizeof(buff), "%s %s :1 %s", target_p->name, |
115 |
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me.name, target_p->info); |
116 |
michael |
2212 |
dlinkAddTail(xstrdup(buff), make_dlink_node(), &flatten_links); |
117 |
michael |
2156 |
snprintf(buff, sizeof(buff), "%s %s :1 %s\n", target_p->name, |
118 |
|
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me.name, target_p->info); |
119 |
adx |
30 |
|
120 |
michael |
1325 |
fputs(buff, file); |
121 |
adx |
30 |
} |
122 |
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|
123 |
michael |
1325 |
fclose(file); |
124 |
adx |
30 |
} |
125 |
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126 |
michael |
2216 |
void |
127 |
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read_links_file(void) |
128 |
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{ |
129 |
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FILE *file = NULL; |
130 |
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char *p = NULL; |
131 |
|
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char buff[IRCD_BUFSIZE] = { '\0' }; |
132 |
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133 |
|
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if ((file = fopen(LIPATH, "r")) == NULL) |
134 |
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return; |
135 |
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136 |
|
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while (fgets(buff, sizeof(buff), file)) |
137 |
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{ |
138 |
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if ((p = strchr(buff, '\n')) != NULL) |
139 |
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*p = '\0'; |
140 |
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141 |
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dlinkAddTail(xstrdup(buff), make_dlink_node(), &flatten_links); |
142 |
|
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} |
143 |
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|
144 |
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fclose(file); |
145 |
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} |
146 |
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|
147 |
adx |
30 |
/* hunt_server() |
148 |
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* Do the basic thing in delivering the message (command) |
149 |
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* across the relays to the specific server (server) for |
150 |
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* actions. |
151 |
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* |
152 |
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* Note: The command is a format string and *MUST* be |
153 |
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* of prefixed style (e.g. ":%s COMMAND %s ..."). |
154 |
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* Command can have only max 8 parameters. |
155 |
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* |
156 |
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* server parv[server] is the parameter identifying the |
157 |
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* target server. |
158 |
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* |
159 |
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* *WARNING* |
160 |
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* parv[server] is replaced with the pointer to the |
161 |
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* real servername from the matched client (I'm lazy |
162 |
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* now --msa). |
163 |
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* |
164 |
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* returns: (see #defines) |
165 |
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*/ |
166 |
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int |
167 |
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hunt_server(struct Client *client_p, struct Client *source_p, const char *command, |
168 |
michael |
1857 |
const int server, const int parc, char *parv[]) |
169 |
adx |
30 |
{ |
170 |
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struct Client *target_p = NULL; |
171 |
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struct Client *target_tmp = NULL; |
172 |
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dlink_node *ptr; |
173 |
|
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int wilds; |
174 |
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|
175 |
michael |
1344 |
/* Assume it's me, if no server */ |
176 |
|
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if (parc <= server || EmptyString(parv[server])) |
177 |
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return HUNTED_ISME; |
178 |
adx |
30 |
|
179 |
michael |
1652 |
if (!strcmp(parv[server], me.id) || !match(parv[server], me.name)) |
180 |
michael |
1344 |
return HUNTED_ISME; |
181 |
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|
182 |
adx |
30 |
/* These are to pickup matches that would cause the following |
183 |
|
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* message to go in the wrong direction while doing quick fast |
184 |
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* non-matching lookups. |
185 |
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*/ |
186 |
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if (MyClient(source_p)) |
187 |
michael |
1169 |
target_p = hash_find_client(parv[server]); |
188 |
adx |
30 |
else |
189 |
|
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target_p = find_person(client_p, parv[server]); |
190 |
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191 |
|
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if (target_p) |
192 |
|
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if (target_p->from == source_p->from && !MyConnect(target_p)) |
193 |
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target_p = NULL; |
194 |
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|
195 |
michael |
1169 |
if (target_p == NULL && (target_p = hash_find_server(parv[server]))) |
196 |
adx |
30 |
if (target_p->from == source_p->from && !MyConnect(target_p)) |
197 |
|
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target_p = NULL; |
198 |
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|
199 |
michael |
1400 |
wilds = has_wildcards(parv[server]); |
200 |
adx |
30 |
|
201 |
|
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/* Again, if there are no wild cards involved in the server |
202 |
|
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* name, use the hash lookup |
203 |
|
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*/ |
204 |
|
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if (target_p == NULL) |
205 |
|
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{ |
206 |
|
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if (!wilds) |
207 |
|
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{ |
208 |
michael |
1169 |
if (!(target_p = hash_find_server(parv[server]))) |
209 |
adx |
30 |
{ |
210 |
michael |
1834 |
sendto_one(source_p, form_str(ERR_NOSUCHSERVER), |
211 |
michael |
1234 |
me.name, source_p->name, parv[server]); |
212 |
michael |
2182 |
return HUNTED_NOSUCH; |
213 |
adx |
30 |
} |
214 |
|
|
} |
215 |
|
|
else |
216 |
|
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{ |
217 |
|
|
DLINK_FOREACH(ptr, global_client_list.head) |
218 |
|
|
{ |
219 |
|
|
target_tmp = ptr->data; |
220 |
|
|
|
221 |
michael |
1652 |
if (!match(parv[server], target_tmp->name)) |
222 |
adx |
30 |
{ |
223 |
|
|
if (target_tmp->from == source_p->from && !MyConnect(target_tmp)) |
224 |
|
|
continue; |
225 |
|
|
target_p = ptr->data; |
226 |
|
|
|
227 |
|
|
if (IsRegistered(target_p) && (target_p != client_p)) |
228 |
|
|
break; |
229 |
|
|
} |
230 |
|
|
} |
231 |
|
|
} |
232 |
|
|
} |
233 |
|
|
|
234 |
|
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if (target_p != NULL) |
235 |
|
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{ |
236 |
|
|
if(!IsRegistered(target_p)) |
237 |
|
|
{ |
238 |
michael |
1834 |
sendto_one(source_p, form_str(ERR_NOSUCHSERVER), |
239 |
michael |
1234 |
me.name, source_p->name, parv[server]); |
240 |
adx |
30 |
return HUNTED_NOSUCH; |
241 |
|
|
} |
242 |
|
|
|
243 |
|
|
if (IsMe(target_p) || MyClient(target_p)) |
244 |
|
|
return HUNTED_ISME; |
245 |
|
|
|
246 |
michael |
1652 |
if (match(target_p->name, parv[server])) |
247 |
adx |
30 |
parv[server] = target_p->name; |
248 |
|
|
|
249 |
|
|
/* This is a little kludgy but should work... */ |
250 |
|
|
if (IsClient(source_p) && |
251 |
|
|
((MyConnect(target_p) && IsCapable(target_p, CAP_TS6)) || |
252 |
|
|
(!MyConnect(target_p) && IsCapable(target_p->from, CAP_TS6)))) |
253 |
|
|
parv[0] = ID(source_p); |
254 |
|
|
|
255 |
|
|
sendto_one(target_p, command, parv[0], |
256 |
|
|
parv[1], parv[2], parv[3], parv[4], |
257 |
|
|
parv[5], parv[6], parv[7], parv[8]); |
258 |
michael |
2134 |
return HUNTED_PASS; |
259 |
michael |
2345 |
} |
260 |
adx |
30 |
|
261 |
michael |
1834 |
sendto_one(source_p, form_str(ERR_NOSUCHSERVER), |
262 |
michael |
1234 |
me.name, source_p->name, parv[server]); |
263 |
michael |
2134 |
return HUNTED_NOSUCH; |
264 |
adx |
30 |
} |
265 |
|
|
|
266 |
|
|
/* try_connections() |
267 |
|
|
* |
268 |
|
|
* inputs - void pointer which is not used |
269 |
|
|
* output - NONE |
270 |
|
|
* side effects - |
271 |
|
|
* scan through configuration and try new connections. |
272 |
|
|
* Returns the calendar time when the next call to this |
273 |
|
|
* function should be made latest. (No harm done if this |
274 |
|
|
* is called earlier or later...) |
275 |
|
|
*/ |
276 |
|
|
void |
277 |
|
|
try_connections(void *unused) |
278 |
|
|
{ |
279 |
michael |
1632 |
dlink_node *ptr = NULL; |
280 |
|
|
struct MaskItem *conf; |
281 |
adx |
30 |
int confrq; |
282 |
|
|
|
283 |
|
|
/* TODO: change this to set active flag to 0 when added to event! --Habeeb */ |
284 |
|
|
if (GlobalSetOptions.autoconn == 0) |
285 |
|
|
return; |
286 |
|
|
|
287 |
|
|
DLINK_FOREACH(ptr, server_items.head) |
288 |
|
|
{ |
289 |
|
|
conf = ptr->data; |
290 |
|
|
|
291 |
michael |
1636 |
assert(conf->type == CONF_SERVER); |
292 |
michael |
1632 |
|
293 |
michael |
2345 |
/* Also when already connecting! (update holdtimes) --SRB |
294 |
adx |
30 |
*/ |
295 |
michael |
1632 |
if (!conf->port ||!IsConfAllowAutoConn(conf)) |
296 |
adx |
30 |
continue; |
297 |
|
|
|
298 |
|
|
|
299 |
|
|
/* Skip this entry if the use of it is still on hold until |
300 |
|
|
* future. Otherwise handle this entry (and set it on hold |
301 |
|
|
* until next time). Will reset only hold times, if already |
302 |
|
|
* made one successfull connection... [this algorithm is |
303 |
|
|
* a bit fuzzy... -- msa >;) ] |
304 |
|
|
*/ |
305 |
michael |
1649 |
if (conf->until > CurrentTime) |
306 |
adx |
30 |
continue; |
307 |
|
|
|
308 |
michael |
1632 |
if (conf->class == NULL) |
309 |
adx |
30 |
confrq = DEFAULT_CONNECTFREQUENCY; |
310 |
|
|
else |
311 |
|
|
{ |
312 |
michael |
1632 |
confrq = conf->class->con_freq; |
313 |
michael |
1377 |
if (confrq < MIN_CONN_FREQ) |
314 |
michael |
2134 |
confrq = MIN_CONN_FREQ; |
315 |
adx |
30 |
} |
316 |
|
|
|
317 |
michael |
1649 |
conf->until = CurrentTime + confrq; |
318 |
adx |
30 |
|
319 |
|
|
/* Found a CONNECT config with port specified, scan clients |
320 |
|
|
* and see if this server is already connected? |
321 |
|
|
*/ |
322 |
michael |
1169 |
if (hash_find_server(conf->name) != NULL) |
323 |
adx |
30 |
continue; |
324 |
|
|
|
325 |
michael |
1632 |
if (conf->class->ref_count < conf->class->max_total) |
326 |
adx |
30 |
{ |
327 |
|
|
/* Go to the end of the list, if not already last */ |
328 |
|
|
if (ptr->next != NULL) |
329 |
|
|
{ |
330 |
|
|
dlinkDelete(ptr, &server_items); |
331 |
|
|
dlinkAddTail(conf, &conf->node, &server_items); |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
if (find_servconn_in_progress(conf->name)) |
335 |
|
|
return; |
336 |
|
|
|
337 |
|
|
/* We used to only print this if serv_connect() actually |
338 |
|
|
* succeeded, but since comm_tcp_connect() can call the callback |
339 |
|
|
* immediately if there is an error, we were getting error messages |
340 |
|
|
* in the wrong order. SO, we just print out the activated line, |
341 |
|
|
* and let serv_connect() / serv_connect_callback() print an |
342 |
|
|
* error afterwards if it fails. |
343 |
|
|
* -- adrian |
344 |
|
|
*/ |
345 |
|
|
if (ConfigServerHide.hide_server_ips) |
346 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
347 |
|
|
"Connection to %s activated.", |
348 |
adx |
30 |
conf->name); |
349 |
|
|
else |
350 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
351 |
|
|
"Connection to %s[%s] activated.", |
352 |
michael |
1632 |
conf->name, conf->host); |
353 |
adx |
30 |
|
354 |
michael |
1632 |
serv_connect(conf, NULL); |
355 |
adx |
30 |
/* We connect only one at time... */ |
356 |
|
|
return; |
357 |
|
|
} |
358 |
|
|
} |
359 |
|
|
} |
360 |
|
|
|
361 |
|
|
int |
362 |
michael |
1115 |
valid_servname(const char *name) |
363 |
|
|
{ |
364 |
|
|
unsigned int length = 0; |
365 |
|
|
unsigned int dots = 0; |
366 |
|
|
const char *p = name; |
367 |
|
|
|
368 |
|
|
for (; *p; ++p) |
369 |
|
|
{ |
370 |
|
|
if (!IsServChar(*p)) |
371 |
michael |
1118 |
return 0; |
372 |
michael |
1115 |
|
373 |
|
|
++length; |
374 |
|
|
|
375 |
|
|
if (*p == '.') |
376 |
|
|
++dots; |
377 |
|
|
} |
378 |
|
|
|
379 |
michael |
1118 |
return dots != 0 && length <= HOSTLEN; |
380 |
michael |
1115 |
} |
381 |
|
|
|
382 |
|
|
int |
383 |
michael |
1302 |
check_server(const char *name, struct Client *client_p) |
384 |
adx |
30 |
{ |
385 |
|
|
dlink_node *ptr; |
386 |
michael |
1632 |
struct MaskItem *conf = NULL; |
387 |
|
|
struct MaskItem *server_conf = NULL; |
388 |
adx |
30 |
int error = -1; |
389 |
|
|
|
390 |
|
|
assert(client_p != NULL); |
391 |
|
|
|
392 |
|
|
/* loop through looking for all possible connect items that might work */ |
393 |
|
|
DLINK_FOREACH(ptr, server_items.head) |
394 |
|
|
{ |
395 |
|
|
conf = ptr->data; |
396 |
|
|
|
397 |
michael |
1652 |
if (match(name, conf->name)) |
398 |
adx |
30 |
continue; |
399 |
|
|
|
400 |
|
|
error = -3; |
401 |
|
|
|
402 |
|
|
/* XXX: Fix me for IPv6 */ |
403 |
|
|
/* XXX sockhost is the IPv4 ip as a string */ |
404 |
michael |
2345 |
if (!match(conf->host, client_p->host) || |
405 |
michael |
1652 |
!match(conf->host, client_p->sockhost)) |
406 |
adx |
30 |
{ |
407 |
|
|
error = -2; |
408 |
|
|
|
409 |
michael |
1632 |
if (!match_conf_password(client_p->localClient->passwd, conf)) |
410 |
michael |
1414 |
return -2; |
411 |
adx |
30 |
|
412 |
michael |
2228 |
if (!EmptyString(conf->certfp)) |
413 |
michael |
2229 |
if (EmptyString(client_p->certfp) || strcasecmp(client_p->certfp, conf->certfp)) |
414 |
michael |
2228 |
return -4; |
415 |
|
|
|
416 |
michael |
1414 |
server_conf = conf; |
417 |
adx |
30 |
} |
418 |
|
|
} |
419 |
|
|
|
420 |
|
|
if (server_conf == NULL) |
421 |
michael |
2182 |
return error; |
422 |
adx |
30 |
|
423 |
|
|
attach_conf(client_p, server_conf); |
424 |
|
|
|
425 |
|
|
|
426 |
michael |
1632 |
if (server_conf != NULL) |
427 |
adx |
30 |
{ |
428 |
|
|
struct sockaddr_in *v4; |
429 |
|
|
#ifdef IPV6 |
430 |
|
|
struct sockaddr_in6 *v6; |
431 |
|
|
#endif |
432 |
michael |
1632 |
switch (server_conf->aftype) |
433 |
adx |
30 |
{ |
434 |
|
|
#ifdef IPV6 |
435 |
michael |
2345 |
case AF_INET6: |
436 |
michael |
1632 |
v6 = (struct sockaddr_in6 *)&server_conf->addr; |
437 |
adx |
30 |
|
438 |
|
|
if (IN6_IS_ADDR_UNSPECIFIED(&v6->sin6_addr)) |
439 |
michael |
1632 |
memcpy(&server_conf->addr, &client_p->localClient->ip, sizeof(struct irc_ssaddr)); |
440 |
adx |
30 |
break; |
441 |
|
|
#endif |
442 |
|
|
case AF_INET: |
443 |
michael |
1632 |
v4 = (struct sockaddr_in *)&server_conf->addr; |
444 |
adx |
30 |
|
445 |
|
|
if (v4->sin_addr.s_addr == INADDR_NONE) |
446 |
michael |
2345 |
memcpy(&server_conf->addr, &client_p->localClient->ip, sizeof(struct irc_ssaddr)); |
447 |
adx |
30 |
break; |
448 |
|
|
} |
449 |
|
|
} |
450 |
|
|
|
451 |
michael |
2182 |
return 0; |
452 |
adx |
30 |
} |
453 |
|
|
|
454 |
|
|
/* add_capability() |
455 |
|
|
* |
456 |
|
|
* inputs - string name of CAPAB |
457 |
|
|
* - int flag of capability |
458 |
|
|
* output - NONE |
459 |
|
|
* side effects - Adds given capability name and bit mask to |
460 |
|
|
* current supported capabilities. This allows |
461 |
|
|
* modules to dynamically add or subtract their capability. |
462 |
|
|
*/ |
463 |
|
|
void |
464 |
|
|
add_capability(const char *capab_name, int cap_flag, int add_to_default) |
465 |
|
|
{ |
466 |
michael |
885 |
struct Capability *cap = MyMalloc(sizeof(*cap)); |
467 |
adx |
30 |
|
468 |
michael |
1646 |
cap->name = xstrdup(capab_name); |
469 |
adx |
30 |
cap->cap = cap_flag; |
470 |
|
|
dlinkAdd(cap, &cap->node, &cap_list); |
471 |
michael |
885 |
|
472 |
adx |
30 |
if (add_to_default) |
473 |
|
|
default_server_capabs |= cap_flag; |
474 |
|
|
} |
475 |
|
|
|
476 |
|
|
/* delete_capability() |
477 |
|
|
* |
478 |
|
|
* inputs - string name of CAPAB |
479 |
|
|
* output - NONE |
480 |
|
|
* side effects - delete given capability from ones known. |
481 |
|
|
*/ |
482 |
|
|
int |
483 |
|
|
delete_capability(const char *capab_name) |
484 |
|
|
{ |
485 |
|
|
dlink_node *ptr; |
486 |
|
|
dlink_node *next_ptr; |
487 |
|
|
struct Capability *cap; |
488 |
|
|
|
489 |
|
|
DLINK_FOREACH_SAFE(ptr, next_ptr, cap_list.head) |
490 |
|
|
{ |
491 |
|
|
cap = ptr->data; |
492 |
|
|
|
493 |
|
|
if (cap->cap != 0) |
494 |
|
|
{ |
495 |
|
|
if (irccmp(cap->name, capab_name) == 0) |
496 |
|
|
{ |
497 |
michael |
2134 |
default_server_capabs &= ~(cap->cap); |
498 |
|
|
dlinkDelete(ptr, &cap_list); |
499 |
|
|
MyFree(cap->name); |
500 |
|
|
MyFree(cap); |
501 |
adx |
30 |
} |
502 |
|
|
} |
503 |
|
|
} |
504 |
|
|
|
505 |
michael |
896 |
return 0; |
506 |
adx |
30 |
} |
507 |
|
|
|
508 |
|
|
/* |
509 |
|
|
* find_capability() |
510 |
|
|
* |
511 |
|
|
* inputs - string name of capab to find |
512 |
|
|
* output - 0 if not found CAPAB otherwise |
513 |
|
|
* side effects - none |
514 |
|
|
*/ |
515 |
michael |
1877 |
unsigned int |
516 |
adx |
30 |
find_capability(const char *capab) |
517 |
|
|
{ |
518 |
michael |
896 |
const dlink_node *ptr = NULL; |
519 |
adx |
30 |
|
520 |
|
|
DLINK_FOREACH(ptr, cap_list.head) |
521 |
|
|
{ |
522 |
michael |
896 |
const struct Capability *cap = ptr->data; |
523 |
adx |
30 |
|
524 |
michael |
896 |
if (cap->cap && !irccmp(cap->name, capab)) |
525 |
|
|
return cap->cap; |
526 |
adx |
30 |
} |
527 |
michael |
896 |
|
528 |
|
|
return 0; |
529 |
adx |
30 |
} |
530 |
|
|
|
531 |
|
|
/* send_capabilities() |
532 |
|
|
* |
533 |
|
|
* inputs - Client pointer to send to |
534 |
|
|
* - int flag of capabilities that this server can send |
535 |
|
|
* output - NONE |
536 |
|
|
* side effects - send the CAPAB line to a server -orabidoo |
537 |
|
|
* |
538 |
|
|
*/ |
539 |
|
|
void |
540 |
michael |
1632 |
send_capabilities(struct Client *client_p, int cap_can_send) |
541 |
adx |
30 |
{ |
542 |
|
|
struct Capability *cap=NULL; |
543 |
|
|
char msgbuf[IRCD_BUFSIZE]; |
544 |
|
|
char *t; |
545 |
|
|
int tl; |
546 |
|
|
dlink_node *ptr; |
547 |
|
|
|
548 |
|
|
t = msgbuf; |
549 |
|
|
|
550 |
|
|
DLINK_FOREACH(ptr, cap_list.head) |
551 |
|
|
{ |
552 |
|
|
cap = ptr->data; |
553 |
|
|
|
554 |
|
|
if (cap->cap & (cap_can_send|default_server_capabs)) |
555 |
|
|
{ |
556 |
michael |
1793 |
tl = sprintf(t, "%s ", cap->name); |
557 |
adx |
30 |
t += tl; |
558 |
|
|
} |
559 |
|
|
} |
560 |
|
|
|
561 |
michael |
319 |
*(t - 1) = '\0'; |
562 |
adx |
30 |
sendto_one(client_p, "CAPAB :%s", msgbuf); |
563 |
|
|
} |
564 |
|
|
|
565 |
|
|
/* sendnick_TS() |
566 |
michael |
2345 |
* |
567 |
adx |
30 |
* inputs - client (server) to send nick towards |
568 |
adx |
386 |
* - client to send nick for |
569 |
adx |
30 |
* output - NONE |
570 |
|
|
* side effects - NICK message is sent towards given client_p |
571 |
|
|
*/ |
572 |
|
|
void |
573 |
|
|
sendnick_TS(struct Client *client_p, struct Client *target_p) |
574 |
|
|
{ |
575 |
michael |
2691 |
char ubuf[IRCD_BUFSIZE]; |
576 |
adx |
30 |
|
577 |
|
|
if (!IsClient(target_p)) |
578 |
|
|
return; |
579 |
|
|
|
580 |
michael |
1294 |
send_umode(NULL, target_p, 0, SEND_UMODES, ubuf); |
581 |
adx |
30 |
|
582 |
|
|
if (ubuf[0] == '\0') |
583 |
|
|
{ |
584 |
|
|
ubuf[0] = '+'; |
585 |
|
|
ubuf[1] = '\0'; |
586 |
|
|
} |
587 |
|
|
|
588 |
michael |
1196 |
if (IsCapable(client_p, CAP_SVS)) |
589 |
|
|
{ |
590 |
|
|
if (HasID(target_p) && IsCapable(client_p, CAP_TS6)) |
591 |
michael |
1559 |
sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s %s :%s", |
592 |
michael |
1196 |
target_p->servptr->id, |
593 |
|
|
target_p->name, target_p->hopcount + 1, |
594 |
|
|
(unsigned long) target_p->tsinfo, |
595 |
|
|
ubuf, target_p->username, target_p->host, |
596 |
|
|
(MyClient(target_p) && IsIPSpoof(target_p)) ? |
597 |
|
|
"0" : target_p->sockhost, target_p->id, |
598 |
michael |
1559 |
target_p->svid, target_p->info); |
599 |
michael |
1196 |
else |
600 |
michael |
1559 |
sendto_one(client_p, "NICK %s %d %lu %s %s %s %s %s :%s", |
601 |
michael |
1196 |
target_p->name, target_p->hopcount + 1, |
602 |
|
|
(unsigned long) target_p->tsinfo, |
603 |
|
|
ubuf, target_p->username, target_p->host, |
604 |
michael |
1559 |
target_p->servptr->name, target_p->svid, |
605 |
michael |
1196 |
target_p->info); |
606 |
|
|
} |
607 |
adx |
30 |
else |
608 |
michael |
1196 |
{ |
609 |
|
|
if (HasID(target_p) && IsCapable(client_p, CAP_TS6)) |
610 |
|
|
sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s :%s", |
611 |
|
|
target_p->servptr->id, |
612 |
|
|
target_p->name, target_p->hopcount + 1, |
613 |
|
|
(unsigned long) target_p->tsinfo, |
614 |
|
|
ubuf, target_p->username, target_p->host, |
615 |
|
|
(MyClient(target_p) && IsIPSpoof(target_p)) ? |
616 |
|
|
"0" : target_p->sockhost, target_p->id, target_p->info); |
617 |
|
|
else |
618 |
|
|
sendto_one(client_p, "NICK %s %d %lu %s %s %s %s :%s", |
619 |
|
|
target_p->name, target_p->hopcount + 1, |
620 |
|
|
(unsigned long) target_p->tsinfo, |
621 |
|
|
ubuf, target_p->username, target_p->host, |
622 |
|
|
target_p->servptr->name, target_p->info); |
623 |
|
|
} |
624 |
adx |
386 |
|
625 |
michael |
2229 |
if (!EmptyString(target_p->certfp)) |
626 |
michael |
2228 |
sendto_one(client_p, ":%s CERTFP %s", |
627 |
|
|
ID_or_name(target_p, client_p), target_p->certfp); |
628 |
|
|
|
629 |
michael |
1519 |
if (target_p->away[0]) |
630 |
|
|
sendto_one(client_p, ":%s AWAY :%s", ID_or_name(target_p, client_p), |
631 |
|
|
target_p->away); |
632 |
adx |
30 |
|
633 |
|
|
} |
634 |
|
|
|
635 |
|
|
/* |
636 |
|
|
* show_capabilities - show current server capabilities |
637 |
|
|
* |
638 |
|
|
* inputs - pointer to a struct Client |
639 |
|
|
* output - pointer to static string |
640 |
|
|
* side effects - build up string representing capabilities of server listed |
641 |
|
|
*/ |
642 |
|
|
const char * |
643 |
michael |
2282 |
show_capabilities(const struct Client *target_p) |
644 |
adx |
30 |
{ |
645 |
michael |
2309 |
static char msgbuf[IRCD_BUFSIZE] = ""; |
646 |
michael |
2282 |
const dlink_node *ptr = NULL; |
647 |
adx |
30 |
|
648 |
michael |
2309 |
strlcpy(msgbuf, "TS", sizeof(msgbuf)); |
649 |
|
|
|
650 |
adx |
30 |
DLINK_FOREACH(ptr, cap_list.head) |
651 |
|
|
{ |
652 |
|
|
const struct Capability *cap = ptr->data; |
653 |
|
|
|
654 |
michael |
2282 |
if (!IsCapable(target_p, cap->cap)) |
655 |
|
|
continue; |
656 |
|
|
|
657 |
|
|
strlcat(msgbuf, " ", sizeof(msgbuf)); |
658 |
|
|
strlcat(msgbuf, cap->name, sizeof(msgbuf)); |
659 |
adx |
30 |
} |
660 |
michael |
1302 |
|
661 |
|
|
return msgbuf; |
662 |
adx |
30 |
} |
663 |
|
|
|
664 |
|
|
/* make_server() |
665 |
|
|
* |
666 |
|
|
* inputs - pointer to client struct |
667 |
|
|
* output - pointer to struct Server |
668 |
|
|
* side effects - add's an Server information block to a client |
669 |
|
|
* if it was not previously allocated. |
670 |
|
|
*/ |
671 |
|
|
struct Server * |
672 |
|
|
make_server(struct Client *client_p) |
673 |
|
|
{ |
674 |
|
|
if (client_p->serv == NULL) |
675 |
|
|
client_p->serv = MyMalloc(sizeof(struct Server)); |
676 |
|
|
|
677 |
|
|
return client_p->serv; |
678 |
|
|
} |
679 |
|
|
|
680 |
|
|
/* server_estab() |
681 |
|
|
* |
682 |
|
|
* inputs - pointer to a struct Client |
683 |
|
|
* output - |
684 |
|
|
* side effects - |
685 |
|
|
*/ |
686 |
|
|
void |
687 |
|
|
server_estab(struct Client *client_p) |
688 |
|
|
{ |
689 |
|
|
struct Client *target_p; |
690 |
michael |
1632 |
struct MaskItem *conf = NULL; |
691 |
adx |
30 |
char *host; |
692 |
|
|
const char *inpath; |
693 |
|
|
static char inpath_ip[HOSTLEN * 2 + USERLEN + 6]; |
694 |
|
|
dlink_node *ptr; |
695 |
michael |
1305 |
#ifdef HAVE_LIBCRYPTO |
696 |
|
|
const COMP_METHOD *compression = NULL, *expansion = NULL; |
697 |
|
|
#endif |
698 |
adx |
30 |
|
699 |
|
|
assert(client_p != NULL); |
700 |
|
|
|
701 |
|
|
strlcpy(inpath_ip, get_client_name(client_p, SHOW_IP), sizeof(inpath_ip)); |
702 |
|
|
|
703 |
|
|
inpath = get_client_name(client_p, MASK_IP); /* "refresh" inpath with host */ |
704 |
|
|
host = client_p->name; |
705 |
|
|
|
706 |
michael |
1632 |
if ((conf = find_conf_name(&client_p->localClient->confs, host, CONF_SERVER)) |
707 |
adx |
30 |
== NULL) |
708 |
|
|
{ |
709 |
|
|
/* This shouldn't happen, better tell the ops... -A1kmm */ |
710 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
711 |
|
|
"Warning: Lost connect{} block " |
712 |
adx |
30 |
"for server %s(this shouldn't happen)!", host); |
713 |
|
|
exit_client(client_p, &me, "Lost connect{} block!"); |
714 |
|
|
return; |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
MyFree(client_p->localClient->passwd); |
718 |
|
|
client_p->localClient->passwd = NULL; |
719 |
|
|
|
720 |
|
|
/* Its got identd, since its a server */ |
721 |
|
|
SetGotId(client_p); |
722 |
|
|
|
723 |
|
|
/* If there is something in the serv_list, it might be this |
724 |
|
|
* connecting server.. |
725 |
|
|
*/ |
726 |
michael |
2345 |
if (!ServerInfo.hub && serv_list.head) |
727 |
adx |
30 |
{ |
728 |
|
|
if (client_p != serv_list.head->data || serv_list.head->next) |
729 |
|
|
{ |
730 |
michael |
896 |
++ServerStats.is_ref; |
731 |
adx |
30 |
sendto_one(client_p, "ERROR :I'm a leaf not a hub"); |
732 |
|
|
exit_client(client_p, &me, "I'm a leaf"); |
733 |
|
|
return; |
734 |
|
|
} |
735 |
|
|
} |
736 |
|
|
|
737 |
michael |
1302 |
if (IsUnknown(client_p)) |
738 |
adx |
30 |
{ |
739 |
michael |
2134 |
sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id); |
740 |
adx |
30 |
|
741 |
michael |
1632 |
send_capabilities(client_p, 0); |
742 |
adx |
30 |
|
743 |
|
|
sendto_one(client_p, "SERVER %s 1 :%s%s", |
744 |
michael |
1118 |
me.name, ConfigServerHide.hidden ? "(H) " : "", me.info); |
745 |
adx |
30 |
} |
746 |
|
|
|
747 |
michael |
1115 |
sendto_one(client_p, "SVINFO %d %d 0 :%lu", TS_CURRENT, TS_MIN, |
748 |
adx |
30 |
(unsigned long)CurrentTime); |
749 |
|
|
|
750 |
|
|
/* assumption here is if they passed the correct TS version, they also passed an SID */ |
751 |
|
|
if (IsCapable(client_p, CAP_TS6)) |
752 |
|
|
hash_add_id(client_p); |
753 |
|
|
|
754 |
|
|
/* XXX Does this ever happen? I don't think so -db */ |
755 |
michael |
1632 |
detach_conf(client_p, CONF_OPER); |
756 |
adx |
30 |
|
757 |
|
|
/* *WARNING* |
758 |
|
|
** In the following code in place of plain server's |
759 |
|
|
** name we send what is returned by get_client_name |
760 |
|
|
** which may add the "sockhost" after the name. It's |
761 |
|
|
** *very* *important* that there is a SPACE between |
762 |
|
|
** the name and sockhost (if present). The receiving |
763 |
|
|
** server will start the information field from this |
764 |
|
|
** first blank and thus puts the sockhost into info. |
765 |
|
|
** ...a bit tricky, but you have been warned, besides |
766 |
|
|
** code is more neat this way... --msa |
767 |
|
|
*/ |
768 |
|
|
client_p->servptr = &me; |
769 |
|
|
|
770 |
|
|
if (IsClosing(client_p)) |
771 |
|
|
return; |
772 |
|
|
|
773 |
|
|
SetServer(client_p); |
774 |
|
|
|
775 |
|
|
/* Update the capability combination usage counts. -A1kmm */ |
776 |
|
|
set_chcap_usage_counts(client_p); |
777 |
|
|
|
778 |
|
|
/* Some day, all these lists will be consolidated *sigh* */ |
779 |
michael |
889 |
dlinkAdd(client_p, &client_p->lnode, &me.serv->server_list); |
780 |
adx |
30 |
|
781 |
michael |
1126 |
assert(dlinkFind(&unknown_list, client_p)); |
782 |
adx |
30 |
|
783 |
michael |
1126 |
dlink_move_node(&client_p->localClient->lclient_node, |
784 |
|
|
&unknown_list, &serv_list); |
785 |
adx |
30 |
|
786 |
|
|
Count.myserver++; |
787 |
|
|
|
788 |
|
|
dlinkAdd(client_p, make_dlink_node(), &global_serv_list); |
789 |
|
|
hash_add_client(client_p); |
790 |
|
|
|
791 |
|
|
/* doesnt duplicate client_p->serv if allocated this struct already */ |
792 |
|
|
make_server(client_p); |
793 |
|
|
|
794 |
|
|
/* fixing eob timings.. -gnp */ |
795 |
michael |
1241 |
client_p->localClient->firsttime = CurrentTime; |
796 |
adx |
30 |
|
797 |
michael |
1632 |
if (find_matching_name_conf(CONF_SERVICE, client_p->name, NULL, NULL, 0)) |
798 |
michael |
1219 |
AddFlag(client_p, FLAGS_SERVICE); |
799 |
michael |
1157 |
|
800 |
adx |
30 |
/* Show the real host/IP to admins */ |
801 |
michael |
1305 |
#ifdef HAVE_LIBCRYPTO |
802 |
michael |
1303 |
if (client_p->localClient->fd.ssl) |
803 |
|
|
{ |
804 |
michael |
1305 |
compression = SSL_get_current_compression(client_p->localClient->fd.ssl); |
805 |
|
|
expansion = SSL_get_current_expansion(client_p->localClient->fd.ssl); |
806 |
|
|
|
807 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
808 |
michael |
1305 |
"Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)", |
809 |
michael |
1303 |
inpath_ip, ssl_get_cipher(client_p->localClient->fd.ssl), |
810 |
michael |
1305 |
compression ? SSL_COMP_get_name(compression) : "NONE", |
811 |
|
|
expansion ? SSL_COMP_get_name(expansion) : "NONE", |
812 |
michael |
1303 |
show_capabilities(client_p)); |
813 |
|
|
/* Now show the masked hostname/IP to opers */ |
814 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
815 |
michael |
1305 |
"Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)", |
816 |
michael |
1303 |
inpath, ssl_get_cipher(client_p->localClient->fd.ssl), |
817 |
michael |
1305 |
compression ? SSL_COMP_get_name(compression) : "NONE", |
818 |
|
|
expansion ? SSL_COMP_get_name(expansion) : "NONE", |
819 |
michael |
1303 |
show_capabilities(client_p)); |
820 |
michael |
1305 |
ilog(LOG_TYPE_IRCD, "Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)", |
821 |
michael |
1303 |
inpath_ip, ssl_get_cipher(client_p->localClient->fd.ssl), |
822 |
michael |
1305 |
compression ? SSL_COMP_get_name(compression) : "NONE", |
823 |
|
|
expansion ? SSL_COMP_get_name(expansion) : "NONE", |
824 |
michael |
1303 |
show_capabilities(client_p)); |
825 |
|
|
} |
826 |
|
|
else |
827 |
michael |
1305 |
#endif |
828 |
michael |
1303 |
{ |
829 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
830 |
michael |
1303 |
"Link with %s established: (Capabilities: %s)", |
831 |
michael |
1618 |
inpath_ip, show_capabilities(client_p)); |
832 |
michael |
1303 |
/* Now show the masked hostname/IP to opers */ |
833 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
834 |
michael |
1303 |
"Link with %s established: (Capabilities: %s)", |
835 |
michael |
1618 |
inpath, show_capabilities(client_p)); |
836 |
michael |
1303 |
ilog(LOG_TYPE_IRCD, "Link with %s established: (Capabilities: %s)", |
837 |
|
|
inpath_ip, show_capabilities(client_p)); |
838 |
|
|
} |
839 |
adx |
30 |
|
840 |
michael |
1302 |
fd_note(&client_p->localClient->fd, "Server: %s", client_p->name); |
841 |
adx |
30 |
|
842 |
|
|
/* Old sendto_serv_but_one() call removed because we now |
843 |
|
|
** need to send different names to different servers |
844 |
|
|
** (domain name matching) Send new server to other servers. |
845 |
|
|
*/ |
846 |
|
|
DLINK_FOREACH(ptr, serv_list.head) |
847 |
|
|
{ |
848 |
|
|
target_p = ptr->data; |
849 |
|
|
|
850 |
|
|
if (target_p == client_p) |
851 |
|
|
continue; |
852 |
|
|
|
853 |
|
|
if (IsCapable(target_p, CAP_TS6) && HasID(client_p)) |
854 |
|
|
sendto_one(target_p, ":%s SID %s 2 %s :%s%s", |
855 |
|
|
me.id, client_p->name, client_p->id, |
856 |
|
|
IsHidden(client_p) ? "(H) " : "", |
857 |
|
|
client_p->info); |
858 |
|
|
else |
859 |
michael |
2345 |
sendto_one(target_p,":%s SERVER %s 2 :%s%s", |
860 |
adx |
30 |
me.name, client_p->name, |
861 |
|
|
IsHidden(client_p) ? "(H) " : "", |
862 |
|
|
client_p->info); |
863 |
|
|
} |
864 |
|
|
|
865 |
michael |
2345 |
/* |
866 |
|
|
* Pass on my client information to the new server |
867 |
|
|
* |
868 |
|
|
* First, pass only servers (idea is that if the link gets |
869 |
|
|
* cancelled beacause the server was already there, |
870 |
|
|
* there are no NICK's to be cancelled...). Of course, |
871 |
|
|
* if cancellation occurs, all this info is sent anyway, |
872 |
|
|
* and I guess the link dies when a read is attempted...? --msa |
873 |
|
|
* |
874 |
|
|
* Note: Link cancellation to occur at this point means |
875 |
|
|
* that at least two servers from my fragment are building |
876 |
|
|
* up connection this other fragment at the same time, it's |
877 |
|
|
* a race condition, not the normal way of operation... |
878 |
|
|
* |
879 |
|
|
* ALSO NOTE: using the get_client_name for server names-- |
880 |
|
|
* see previous *WARNING*!!! (Also, original inpath |
881 |
|
|
* is destroyed...) |
882 |
|
|
*/ |
883 |
adx |
30 |
|
884 |
|
|
DLINK_FOREACH_PREV(ptr, global_serv_list.tail) |
885 |
|
|
{ |
886 |
|
|
target_p = ptr->data; |
887 |
|
|
|
888 |
|
|
/* target_p->from == target_p for target_p == client_p */ |
889 |
michael |
1118 |
if (IsMe(target_p) || target_p->from == client_p) |
890 |
adx |
30 |
continue; |
891 |
|
|
|
892 |
|
|
if (IsCapable(client_p, CAP_TS6)) |
893 |
|
|
{ |
894 |
|
|
if (HasID(target_p)) |
895 |
|
|
sendto_one(client_p, ":%s SID %s %d %s :%s%s", |
896 |
|
|
ID(target_p->servptr), target_p->name, target_p->hopcount+1, |
897 |
|
|
target_p->id, IsHidden(target_p) ? "(H) " : "", |
898 |
|
|
target_p->info); |
899 |
|
|
else /* introducing non-ts6 server */ |
900 |
|
|
sendto_one(client_p, ":%s SERVER %s %d :%s%s", |
901 |
|
|
ID(target_p->servptr), target_p->name, target_p->hopcount+1, |
902 |
|
|
IsHidden(target_p) ? "(H) " : "", target_p->info); |
903 |
|
|
} |
904 |
|
|
else |
905 |
michael |
2345 |
sendto_one(client_p, ":%s SERVER %s %d :%s%s", |
906 |
adx |
30 |
target_p->servptr->name, target_p->name, target_p->hopcount+1, |
907 |
|
|
IsHidden(target_p) ? "(H) " : "", target_p->info); |
908 |
michael |
1972 |
|
909 |
|
|
if (HasFlag(target_p, FLAGS_EOB)) |
910 |
michael |
2718 |
sendto_one(client_p, ":%s EOB", ID_or_name(target_p, client_p)); |
911 |
adx |
30 |
} |
912 |
|
|
|
913 |
|
|
server_burst(client_p); |
914 |
|
|
} |
915 |
|
|
|
916 |
|
|
/* server_burst() |
917 |
|
|
* |
918 |
|
|
* inputs - struct Client pointer server |
919 |
|
|
* - |
920 |
|
|
* output - none |
921 |
|
|
* side effects - send a server burst |
922 |
|
|
* bugs - still too long |
923 |
|
|
*/ |
924 |
|
|
static void |
925 |
|
|
server_burst(struct Client *client_p) |
926 |
|
|
{ |
927 |
|
|
/* Send it in the shortened format with the TS, if |
928 |
|
|
** it's a TS server; walk the list of channels, sending |
929 |
|
|
** all the nicks that haven't been sent yet for each |
930 |
|
|
** channel, then send the channel itself -- it's less |
931 |
|
|
** obvious than sending all nicks first, but on the |
932 |
|
|
** receiving side memory will be allocated more nicely |
933 |
|
|
** saving a few seconds in the handling of a split |
934 |
|
|
** -orabidoo |
935 |
|
|
*/ |
936 |
|
|
|
937 |
michael |
885 |
burst_all(client_p); |
938 |
adx |
30 |
|
939 |
|
|
/* EOB stuff is now in burst_all */ |
940 |
|
|
/* Always send a PING after connect burst is done */ |
941 |
|
|
sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p)); |
942 |
|
|
} |
943 |
|
|
|
944 |
|
|
/* burst_all() |
945 |
|
|
* |
946 |
michael |
2345 |
* inputs - pointer to server to send burst to |
947 |
adx |
30 |
* output - NONE |
948 |
|
|
* side effects - complete burst of channels/nicks is sent to client_p |
949 |
|
|
*/ |
950 |
|
|
static void |
951 |
|
|
burst_all(struct Client *client_p) |
952 |
|
|
{ |
953 |
michael |
329 |
dlink_node *ptr = NULL; |
954 |
adx |
30 |
|
955 |
michael |
329 |
DLINK_FOREACH(ptr, global_channel_list.head) |
956 |
adx |
30 |
{ |
957 |
michael |
329 |
struct Channel *chptr = ptr->data; |
958 |
adx |
30 |
|
959 |
|
|
if (dlink_list_length(&chptr->members) != 0) |
960 |
|
|
{ |
961 |
|
|
burst_members(client_p, chptr); |
962 |
|
|
send_channel_modes(client_p, chptr); |
963 |
michael |
329 |
|
964 |
michael |
1472 |
if (IsCapable(client_p, CAP_TBURST)) |
965 |
michael |
2134 |
send_tb(client_p, chptr); |
966 |
adx |
30 |
} |
967 |
|
|
} |
968 |
|
|
|
969 |
|
|
/* also send out those that are not on any channel |
970 |
|
|
*/ |
971 |
|
|
DLINK_FOREACH(ptr, global_client_list.head) |
972 |
|
|
{ |
973 |
michael |
329 |
struct Client *target_p = ptr->data; |
974 |
adx |
30 |
|
975 |
michael |
1219 |
if (!HasFlag(target_p, FLAGS_BURSTED) && target_p->from != client_p) |
976 |
adx |
30 |
sendnick_TS(client_p, target_p); |
977 |
michael |
2345 |
|
978 |
michael |
1219 |
DelFlag(target_p, FLAGS_BURSTED); |
979 |
adx |
30 |
} |
980 |
|
|
|
981 |
|
|
if (IsCapable(client_p, CAP_EOB)) |
982 |
|
|
sendto_one(client_p, ":%s EOB", ID_or_name(&me, client_p)); |
983 |
|
|
} |
984 |
|
|
|
985 |
|
|
/* |
986 |
|
|
* send_tb |
987 |
|
|
* |
988 |
michael |
329 |
* inputs - pointer to Client |
989 |
|
|
* - pointer to channel |
990 |
|
|
* output - NONE |
991 |
|
|
* side effects - Called on a server burst when |
992 |
michael |
1472 |
* server is CAP_TBURST capable |
993 |
adx |
30 |
*/ |
994 |
|
|
static void |
995 |
|
|
send_tb(struct Client *client_p, struct Channel *chptr) |
996 |
|
|
{ |
997 |
michael |
329 |
/* |
998 |
michael |
337 |
* We may also send an empty topic here, but only if topic_time isn't 0, |
999 |
|
|
* i.e. if we had a topic that got unset. This is required for syncing |
1000 |
|
|
* topics properly. |
1001 |
|
|
* |
1002 |
|
|
* Imagine the following scenario: Our downlink introduces a channel |
1003 |
|
|
* to us with a TS that is equal to ours, but the channel topic on |
1004 |
|
|
* their side got unset while the servers were in splitmode, which means |
1005 |
|
|
* their 'topic' is newer. They simply wanted to unset it, so we have to |
1006 |
|
|
* deal with it in a more sophisticated fashion instead of just resetting |
1007 |
|
|
* it to their old topic they had before. Read m_tburst.c:ms_tburst |
1008 |
|
|
* for further information -Michael |
1009 |
michael |
329 |
*/ |
1010 |
michael |
337 |
if (chptr->topic_time != 0) |
1011 |
michael |
1472 |
sendto_one(client_p, ":%s TBURST %lu %s %lu %s :%s", |
1012 |
|
|
ID_or_name(&me, client_p), |
1013 |
|
|
(unsigned long)chptr->channelts, chptr->chname, |
1014 |
|
|
(unsigned long)chptr->topic_time, |
1015 |
|
|
chptr->topic_info, |
1016 |
|
|
chptr->topic); |
1017 |
adx |
30 |
} |
1018 |
|
|
|
1019 |
|
|
/* burst_members() |
1020 |
|
|
* |
1021 |
|
|
* inputs - pointer to server to send members to |
1022 |
|
|
* - dlink_list pointer to membership list to send |
1023 |
|
|
* output - NONE |
1024 |
|
|
* side effects - |
1025 |
|
|
*/ |
1026 |
|
|
static void |
1027 |
|
|
burst_members(struct Client *client_p, struct Channel *chptr) |
1028 |
|
|
{ |
1029 |
|
|
struct Client *target_p; |
1030 |
|
|
struct Membership *ms; |
1031 |
|
|
dlink_node *ptr; |
1032 |
|
|
|
1033 |
|
|
DLINK_FOREACH(ptr, chptr->members.head) |
1034 |
|
|
{ |
1035 |
|
|
ms = ptr->data; |
1036 |
|
|
target_p = ms->client_p; |
1037 |
|
|
|
1038 |
michael |
1219 |
if (!HasFlag(target_p, FLAGS_BURSTED)) |
1039 |
adx |
30 |
{ |
1040 |
michael |
1219 |
AddFlag(target_p, FLAGS_BURSTED); |
1041 |
adx |
30 |
|
1042 |
|
|
if (target_p->from != client_p) |
1043 |
|
|
sendnick_TS(client_p, target_p); |
1044 |
|
|
} |
1045 |
|
|
} |
1046 |
|
|
} |
1047 |
|
|
|
1048 |
|
|
/* New server connection code |
1049 |
|
|
* Based upon the stuff floating about in s_bsd.c |
1050 |
|
|
* -- adrian |
1051 |
|
|
*/ |
1052 |
|
|
|
1053 |
|
|
/* serv_connect() - initiate a server connection |
1054 |
|
|
* |
1055 |
michael |
2345 |
* inputs - pointer to conf |
1056 |
adx |
30 |
* - pointer to client doing the connect |
1057 |
|
|
* output - |
1058 |
|
|
* side effects - |
1059 |
|
|
* |
1060 |
|
|
* This code initiates a connection to a server. It first checks to make |
1061 |
|
|
* sure the given server exists. If this is the case, it creates a socket, |
1062 |
|
|
* creates a client, saves the socket information in the client, and |
1063 |
|
|
* initiates a connection to the server through comm_connect_tcp(). The |
1064 |
|
|
* completion of this goes through serv_completed_connection(). |
1065 |
|
|
* |
1066 |
|
|
* We return 1 if the connection is attempted, since we don't know whether |
1067 |
|
|
* it suceeded or not, and 0 if it fails in here somewhere. |
1068 |
|
|
*/ |
1069 |
|
|
int |
1070 |
michael |
1632 |
serv_connect(struct MaskItem *conf, struct Client *by) |
1071 |
adx |
30 |
{ |
1072 |
|
|
struct Client *client_p; |
1073 |
michael |
1398 |
char buf[HOSTIPLEN + 1]; |
1074 |
adx |
30 |
|
1075 |
|
|
/* conversion structs */ |
1076 |
|
|
struct sockaddr_in *v4; |
1077 |
michael |
1632 |
/* Make sure conf is useful */ |
1078 |
|
|
assert(conf != NULL); |
1079 |
adx |
30 |
|
1080 |
|
|
|
1081 |
michael |
1632 |
getnameinfo((struct sockaddr *)&conf->addr, conf->addr.ss_len, |
1082 |
michael |
1123 |
buf, sizeof(buf), NULL, 0, NI_NUMERICHOST); |
1083 |
michael |
1632 |
ilog(LOG_TYPE_IRCD, "Connect to %s[%s] @%s", conf->name, conf->host, |
1084 |
adx |
30 |
buf); |
1085 |
|
|
|
1086 |
|
|
/* Still processing a DNS lookup? -> exit */ |
1087 |
michael |
1632 |
if (conf->dns_pending) |
1088 |
adx |
30 |
{ |
1089 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1090 |
michael |
992 |
"Error connecting to %s: DNS lookup for connect{} in progress.", |
1091 |
|
|
conf->name); |
1092 |
adx |
30 |
return (0); |
1093 |
|
|
} |
1094 |
|
|
|
1095 |
michael |
1632 |
if (conf->dns_failed) |
1096 |
michael |
992 |
{ |
1097 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1098 |
michael |
992 |
"Error connecting to %s: DNS lookup for connect{} failed.", |
1099 |
|
|
conf->name); |
1100 |
|
|
return (0); |
1101 |
|
|
} |
1102 |
|
|
|
1103 |
adx |
30 |
/* Make sure this server isn't already connected |
1104 |
michael |
1632 |
* Note: conf should ALWAYS be a valid C: line |
1105 |
adx |
30 |
*/ |
1106 |
michael |
1169 |
if ((client_p = hash_find_server(conf->name)) != NULL) |
1107 |
michael |
2345 |
{ |
1108 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1109 |
michael |
2134 |
"Server %s already present from %s", |
1110 |
|
|
conf->name, get_client_name(client_p, SHOW_IP)); |
1111 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1112 |
michael |
2134 |
"Server %s already present from %s", |
1113 |
|
|
conf->name, get_client_name(client_p, MASK_IP)); |
1114 |
adx |
30 |
if (by && IsClient(by) && !MyClient(by)) |
1115 |
|
|
sendto_one(by, ":%s NOTICE %s :Server %s already present from %s", |
1116 |
michael |
2134 |
me.name, by->name, conf->name, |
1117 |
|
|
get_client_name(client_p, MASK_IP)); |
1118 |
|
|
return 0; |
1119 |
adx |
30 |
} |
1120 |
michael |
2345 |
|
1121 |
adx |
30 |
/* Create a local client */ |
1122 |
|
|
client_p = make_client(NULL); |
1123 |
|
|
|
1124 |
|
|
/* Copy in the server, hostname, fd */ |
1125 |
|
|
strlcpy(client_p->name, conf->name, sizeof(client_p->name)); |
1126 |
michael |
1632 |
strlcpy(client_p->host, conf->host, sizeof(client_p->host)); |
1127 |
adx |
30 |
|
1128 |
|
|
/* We already converted the ip once, so lets use it - stu */ |
1129 |
michael |
1115 |
strlcpy(client_p->sockhost, buf, sizeof(client_p->sockhost)); |
1130 |
adx |
30 |
|
1131 |
michael |
2345 |
/* create a socket for the server connection */ |
1132 |
michael |
1632 |
if (comm_open(&client_p->localClient->fd, conf->addr.ss.ss_family, |
1133 |
adx |
30 |
SOCK_STREAM, 0, NULL) < 0) |
1134 |
|
|
{ |
1135 |
|
|
/* Eek, failure to create the socket */ |
1136 |
michael |
2134 |
report_error(L_ALL, "opening stream socket to %s: %s", |
1137 |
|
|
conf->name, errno); |
1138 |
adx |
30 |
SetDead(client_p); |
1139 |
|
|
exit_client(client_p, &me, "Connection failed"); |
1140 |
michael |
2134 |
return 0; |
1141 |
adx |
30 |
} |
1142 |
|
|
|
1143 |
|
|
/* servernames are always guaranteed under HOSTLEN chars */ |
1144 |
|
|
fd_note(&client_p->localClient->fd, "Server: %s", conf->name); |
1145 |
|
|
|
1146 |
|
|
/* Attach config entries to client here rather than in |
1147 |
|
|
* serv_connect_callback(). This to avoid null pointer references. |
1148 |
|
|
*/ |
1149 |
michael |
1632 |
if (!attach_connect_block(client_p, conf->name, conf->host)) |
1150 |
adx |
30 |
{ |
1151 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1152 |
michael |
2134 |
"Host %s is not enabled for connecting: no connect{} block", |
1153 |
|
|
conf->name); |
1154 |
michael |
2345 |
if (by && IsClient(by) && !MyClient(by)) |
1155 |
adx |
30 |
sendto_one(by, ":%s NOTICE %s :Connect to host %s failed.", |
1156 |
michael |
2134 |
me.name, by->name, client_p->name); |
1157 |
adx |
30 |
SetDead(client_p); |
1158 |
|
|
exit_client(client_p, client_p, "Connection failed"); |
1159 |
michael |
2134 |
return 0; |
1160 |
adx |
30 |
} |
1161 |
|
|
|
1162 |
|
|
/* at this point we have a connection in progress and C/N lines |
1163 |
|
|
* attached to the client, the socket info should be saved in the |
1164 |
|
|
* client and it should either be resolved or have a valid address. |
1165 |
|
|
* |
1166 |
|
|
* The socket has been connected or connect is in progress. |
1167 |
|
|
*/ |
1168 |
|
|
make_server(client_p); |
1169 |
|
|
|
1170 |
|
|
if (by && IsClient(by)) |
1171 |
|
|
strlcpy(client_p->serv->by, by->name, sizeof(client_p->serv->by)); |
1172 |
|
|
else |
1173 |
|
|
strlcpy(client_p->serv->by, "AutoConn.", sizeof(client_p->serv->by)); |
1174 |
|
|
|
1175 |
|
|
SetConnecting(client_p); |
1176 |
|
|
dlinkAdd(client_p, &client_p->node, &global_client_list); |
1177 |
|
|
/* from def_fam */ |
1178 |
michael |
1632 |
client_p->localClient->aftype = conf->aftype; |
1179 |
adx |
30 |
|
1180 |
|
|
/* Now, initiate the connection */ |
1181 |
michael |
2345 |
/* XXX assume that a non 0 type means a specific bind address |
1182 |
adx |
30 |
* for this connect. |
1183 |
|
|
*/ |
1184 |
michael |
1632 |
switch (conf->aftype) |
1185 |
adx |
30 |
{ |
1186 |
|
|
case AF_INET: |
1187 |
michael |
1632 |
v4 = (struct sockaddr_in*)&conf->bind; |
1188 |
adx |
30 |
if (v4->sin_addr.s_addr != 0) |
1189 |
|
|
{ |
1190 |
|
|
struct irc_ssaddr ipn; |
1191 |
|
|
memset(&ipn, 0, sizeof(struct irc_ssaddr)); |
1192 |
|
|
ipn.ss.ss_family = AF_INET; |
1193 |
|
|
ipn.ss_port = 0; |
1194 |
michael |
1632 |
memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr)); |
1195 |
michael |
2134 |
comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port, |
1196 |
michael |
2345 |
(struct sockaddr *)&ipn, ipn.ss_len, |
1197 |
michael |
2134 |
serv_connect_callback, client_p, conf->aftype, |
1198 |
|
|
CONNECTTIMEOUT); |
1199 |
adx |
30 |
} |
1200 |
|
|
else if (ServerInfo.specific_ipv4_vhost) |
1201 |
|
|
{ |
1202 |
|
|
struct irc_ssaddr ipn; |
1203 |
|
|
memset(&ipn, 0, sizeof(struct irc_ssaddr)); |
1204 |
|
|
ipn.ss.ss_family = AF_INET; |
1205 |
|
|
ipn.ss_port = 0; |
1206 |
|
|
memcpy(&ipn, &ServerInfo.ip, sizeof(struct irc_ssaddr)); |
1207 |
michael |
1632 |
comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port, |
1208 |
adx |
30 |
(struct sockaddr *)&ipn, ipn.ss_len, |
1209 |
michael |
1632 |
serv_connect_callback, client_p, conf->aftype, |
1210 |
michael |
2134 |
CONNECTTIMEOUT); |
1211 |
adx |
30 |
} |
1212 |
|
|
else |
1213 |
michael |
2345 |
comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port, |
1214 |
|
|
NULL, 0, serv_connect_callback, client_p, conf->aftype, |
1215 |
adx |
30 |
CONNECTTIMEOUT); |
1216 |
|
|
break; |
1217 |
|
|
#ifdef IPV6 |
1218 |
|
|
case AF_INET6: |
1219 |
|
|
{ |
1220 |
michael |
2182 |
struct irc_ssaddr ipn; |
1221 |
|
|
struct sockaddr_in6 *v6; |
1222 |
|
|
struct sockaddr_in6 *v6conf; |
1223 |
adx |
30 |
|
1224 |
michael |
2182 |
memset(&ipn, 0, sizeof(struct irc_ssaddr)); |
1225 |
|
|
v6conf = (struct sockaddr_in6 *)&conf->bind; |
1226 |
|
|
v6 = (struct sockaddr_in6 *)&ipn; |
1227 |
adx |
30 |
|
1228 |
michael |
2182 |
if (memcmp(&v6conf->sin6_addr, &v6->sin6_addr, sizeof(struct in6_addr)) != 0) |
1229 |
adx |
30 |
{ |
1230 |
michael |
2182 |
memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr)); |
1231 |
|
|
ipn.ss.ss_family = AF_INET6; |
1232 |
|
|
ipn.ss_port = 0; |
1233 |
|
|
comm_connect_tcp(&client_p->localClient->fd, |
1234 |
|
|
conf->host, conf->port, |
1235 |
michael |
2345 |
(struct sockaddr *)&ipn, ipn.ss_len, |
1236 |
michael |
2182 |
serv_connect_callback, client_p, |
1237 |
|
|
conf->aftype, CONNECTTIMEOUT); |
1238 |
|
|
} |
1239 |
|
|
else if (ServerInfo.specific_ipv6_vhost) |
1240 |
|
|
{ |
1241 |
|
|
memcpy(&ipn, &ServerInfo.ip6, sizeof(struct irc_ssaddr)); |
1242 |
|
|
ipn.ss.ss_family = AF_INET6; |
1243 |
|
|
ipn.ss_port = 0; |
1244 |
|
|
comm_connect_tcp(&client_p->localClient->fd, |
1245 |
|
|
conf->host, conf->port, |
1246 |
|
|
(struct sockaddr *)&ipn, ipn.ss_len, |
1247 |
|
|
serv_connect_callback, client_p, |
1248 |
|
|
conf->aftype, CONNECTTIMEOUT); |
1249 |
|
|
} |
1250 |
|
|
else |
1251 |
|
|
comm_connect_tcp(&client_p->localClient->fd, |
1252 |
michael |
2345 |
conf->host, conf->port, |
1253 |
michael |
2182 |
NULL, 0, serv_connect_callback, client_p, |
1254 |
|
|
conf->aftype, CONNECTTIMEOUT); |
1255 |
adx |
30 |
} |
1256 |
|
|
#endif |
1257 |
|
|
} |
1258 |
michael |
2182 |
return 1; |
1259 |
adx |
30 |
} |
1260 |
|
|
|
1261 |
michael |
1303 |
#ifdef HAVE_LIBCRYPTO |
1262 |
|
|
static void |
1263 |
|
|
finish_ssl_server_handshake(struct Client *client_p) |
1264 |
|
|
{ |
1265 |
michael |
1632 |
struct MaskItem *conf = NULL; |
1266 |
michael |
1303 |
|
1267 |
|
|
conf = find_conf_name(&client_p->localClient->confs, |
1268 |
michael |
1632 |
client_p->name, CONF_SERVER); |
1269 |
michael |
1303 |
if (conf == NULL) |
1270 |
|
|
{ |
1271 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1272 |
michael |
1303 |
"Lost connect{} block for %s", get_client_name(client_p, HIDE_IP)); |
1273 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1274 |
michael |
1303 |
"Lost connect{} block for %s", get_client_name(client_p, MASK_IP)); |
1275 |
|
|
|
1276 |
|
|
exit_client(client_p, &me, "Lost connect{} block"); |
1277 |
|
|
return; |
1278 |
|
|
} |
1279 |
|
|
|
1280 |
michael |
2134 |
sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id); |
1281 |
michael |
1303 |
|
1282 |
michael |
1632 |
send_capabilities(client_p, 0); |
1283 |
michael |
1303 |
|
1284 |
|
|
sendto_one(client_p, "SERVER %s 1 :%s%s", |
1285 |
|
|
me.name, ConfigServerHide.hidden ? "(H) " : "", |
1286 |
|
|
me.info); |
1287 |
|
|
|
1288 |
|
|
/* If we've been marked dead because a send failed, just exit |
1289 |
|
|
* here now and save everyone the trouble of us ever existing. |
1290 |
|
|
*/ |
1291 |
|
|
if (IsDead(client_p)) |
1292 |
|
|
{ |
1293 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1294 |
michael |
1303 |
"%s[%s] went dead during handshake", |
1295 |
|
|
client_p->name, |
1296 |
|
|
client_p->host); |
1297 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1298 |
michael |
1303 |
"%s went dead during handshake", client_p->name); |
1299 |
|
|
return; |
1300 |
|
|
} |
1301 |
|
|
|
1302 |
|
|
/* don't move to serv_list yet -- we haven't sent a burst! */ |
1303 |
|
|
/* If we get here, we're ok, so lets start reading some data */ |
1304 |
|
|
comm_setselect(&client_p->localClient->fd, COMM_SELECT_READ, read_packet, client_p, 0); |
1305 |
|
|
} |
1306 |
|
|
|
1307 |
|
|
static void |
1308 |
michael |
1306 |
ssl_server_handshake(fde_t *fd, struct Client *client_p) |
1309 |
michael |
1303 |
{ |
1310 |
michael |
2463 |
X509 *cert = NULL; |
1311 |
|
|
int ret = 0; |
1312 |
michael |
1303 |
|
1313 |
michael |
2463 |
if ((ret = SSL_connect(client_p->localClient->fd.ssl)) <= 0) |
1314 |
michael |
1303 |
{ |
1315 |
michael |
2463 |
switch (SSL_get_error(client_p->localClient->fd.ssl, ret)) |
1316 |
michael |
1303 |
{ |
1317 |
|
|
case SSL_ERROR_WANT_WRITE: |
1318 |
|
|
comm_setselect(&client_p->localClient->fd, COMM_SELECT_WRITE, |
1319 |
michael |
1308 |
(PF *)ssl_server_handshake, client_p, 0); |
1320 |
michael |
1303 |
return; |
1321 |
|
|
case SSL_ERROR_WANT_READ: |
1322 |
|
|
comm_setselect(&client_p->localClient->fd, COMM_SELECT_READ, |
1323 |
michael |
1308 |
(PF *)ssl_server_handshake, client_p, 0); |
1324 |
michael |
1303 |
return; |
1325 |
|
|
default: |
1326 |
michael |
1308 |
{ |
1327 |
|
|
const char *sslerr = ERR_error_string(ERR_get_error(), NULL); |
1328 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1329 |
michael |
1308 |
"Error connecting to %s: %s", client_p->name, |
1330 |
|
|
sslerr ? sslerr : "unknown SSL error"); |
1331 |
michael |
1303 |
exit_client(client_p, client_p, "Error during SSL handshake"); |
1332 |
|
|
return; |
1333 |
michael |
1308 |
} |
1334 |
michael |
1303 |
} |
1335 |
|
|
} |
1336 |
|
|
|
1337 |
michael |
2463 |
if ((cert = SSL_get_peer_certificate(client_p->localClient->fd.ssl))) |
1338 |
|
|
{ |
1339 |
|
|
int res = SSL_get_verify_result(client_p->localClient->fd.ssl); |
1340 |
|
|
char buf[EVP_MAX_MD_SIZE * 2 + 1] = { '\0' }; |
1341 |
|
|
unsigned char md[EVP_MAX_MD_SIZE] = { '\0' }; |
1342 |
|
|
|
1343 |
|
|
if (res == X509_V_OK || res == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN || |
1344 |
|
|
res == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE || |
1345 |
|
|
res == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) |
1346 |
|
|
{ |
1347 |
|
|
unsigned int i = 0, n = 0; |
1348 |
|
|
|
1349 |
|
|
if (X509_digest(cert, EVP_sha256(), md, &n)) |
1350 |
|
|
{ |
1351 |
|
|
for (; i < n; ++i) |
1352 |
|
|
snprintf(buf + 2 * i, 3, "%02X", md[i]); |
1353 |
|
|
client_p->certfp = xstrdup(buf); |
1354 |
|
|
} |
1355 |
|
|
} |
1356 |
|
|
else |
1357 |
|
|
ilog(LOG_TYPE_IRCD, "Server %s!%s@%s gave bad SSL client certificate: %d", |
1358 |
|
|
client_p->name, client_p->username, client_p->host, res); |
1359 |
|
|
X509_free(cert); |
1360 |
|
|
} |
1361 |
|
|
|
1362 |
michael |
1303 |
finish_ssl_server_handshake(client_p); |
1363 |
|
|
} |
1364 |
|
|
|
1365 |
|
|
static void |
1366 |
michael |
1632 |
ssl_connect_init(struct Client *client_p, struct MaskItem *conf, fde_t *fd) |
1367 |
michael |
1303 |
{ |
1368 |
|
|
if ((client_p->localClient->fd.ssl = SSL_new(ServerInfo.client_ctx)) == NULL) |
1369 |
|
|
{ |
1370 |
|
|
ilog(LOG_TYPE_IRCD, "SSL_new() ERROR! -- %s", |
1371 |
|
|
ERR_error_string(ERR_get_error(), NULL)); |
1372 |
|
|
SetDead(client_p); |
1373 |
|
|
exit_client(client_p, client_p, "SSL_new failed"); |
1374 |
|
|
return; |
1375 |
|
|
} |
1376 |
|
|
|
1377 |
|
|
SSL_set_fd(fd->ssl, fd->fd); |
1378 |
michael |
1306 |
|
1379 |
michael |
1632 |
if (!EmptyString(conf->cipher_list)) |
1380 |
|
|
SSL_set_cipher_list(client_p->localClient->fd.ssl, conf->cipher_list); |
1381 |
michael |
1306 |
|
1382 |
|
|
ssl_server_handshake(NULL, client_p); |
1383 |
michael |
1303 |
} |
1384 |
|
|
#endif |
1385 |
|
|
|
1386 |
adx |
30 |
/* serv_connect_callback() - complete a server connection. |
1387 |
michael |
2345 |
* |
1388 |
adx |
30 |
* This routine is called after the server connection attempt has |
1389 |
|
|
* completed. If unsucessful, an error is sent to ops and the client |
1390 |
|
|
* is closed. If sucessful, it goes through the initialisation/check |
1391 |
|
|
* procedures, the capabilities are sent, and the socket is then |
1392 |
|
|
* marked for reading. |
1393 |
|
|
*/ |
1394 |
|
|
static void |
1395 |
|
|
serv_connect_callback(fde_t *fd, int status, void *data) |
1396 |
|
|
{ |
1397 |
|
|
struct Client *client_p = data; |
1398 |
michael |
1632 |
struct MaskItem *conf = NULL; |
1399 |
adx |
30 |
|
1400 |
|
|
/* First, make sure its a real client! */ |
1401 |
|
|
assert(client_p != NULL); |
1402 |
|
|
assert(&client_p->localClient->fd == fd); |
1403 |
|
|
|
1404 |
|
|
/* Next, for backward purposes, record the ip of the server */ |
1405 |
|
|
memcpy(&client_p->localClient->ip, &fd->connect.hostaddr, |
1406 |
|
|
sizeof(struct irc_ssaddr)); |
1407 |
|
|
/* Check the status */ |
1408 |
|
|
if (status != COMM_OK) |
1409 |
|
|
{ |
1410 |
|
|
/* We have an error, so report it and quit |
1411 |
|
|
* Admins get to see any IP, mere opers don't *sigh* |
1412 |
|
|
*/ |
1413 |
|
|
if (ConfigServerHide.hide_server_ips) |
1414 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1415 |
adx |
30 |
"Error connecting to %s: %s", |
1416 |
|
|
client_p->name, comm_errstr(status)); |
1417 |
|
|
else |
1418 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1419 |
michael |
2134 |
"Error connecting to %s[%s]: %s", client_p->name, |
1420 |
|
|
client_p->host, comm_errstr(status)); |
1421 |
adx |
30 |
|
1422 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1423 |
michael |
2134 |
"Error connecting to %s: %s", |
1424 |
|
|
client_p->name, comm_errstr(status)); |
1425 |
adx |
30 |
|
1426 |
|
|
/* If a fd goes bad, call dead_link() the socket is no |
1427 |
|
|
* longer valid for reading or writing. |
1428 |
|
|
*/ |
1429 |
|
|
dead_link_on_write(client_p, 0); |
1430 |
|
|
return; |
1431 |
|
|
} |
1432 |
|
|
|
1433 |
|
|
/* COMM_OK, so continue the connection procedure */ |
1434 |
|
|
/* Get the C/N lines */ |
1435 |
|
|
conf = find_conf_name(&client_p->localClient->confs, |
1436 |
michael |
2134 |
client_p->name, CONF_SERVER); |
1437 |
adx |
30 |
if (conf == NULL) |
1438 |
|
|
{ |
1439 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1440 |
michael |
2134 |
"Lost connect{} block for %s", get_client_name(client_p, HIDE_IP)); |
1441 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1442 |
michael |
2134 |
"Lost connect{} block for %s", get_client_name(client_p, MASK_IP)); |
1443 |
adx |
30 |
|
1444 |
|
|
exit_client(client_p, &me, "Lost connect{} block"); |
1445 |
|
|
return; |
1446 |
|
|
} |
1447 |
|
|
|
1448 |
|
|
/* Next, send the initial handshake */ |
1449 |
|
|
SetHandshake(client_p); |
1450 |
|
|
|
1451 |
|
|
#ifdef HAVE_LIBCRYPTO |
1452 |
michael |
1632 |
if (IsConfSSL(conf)) |
1453 |
michael |
1303 |
{ |
1454 |
michael |
1632 |
ssl_connect_init(client_p, conf, fd); |
1455 |
michael |
1303 |
return; |
1456 |
|
|
} |
1457 |
adx |
30 |
#endif |
1458 |
|
|
|
1459 |
michael |
2134 |
sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id); |
1460 |
adx |
30 |
|
1461 |
michael |
1632 |
send_capabilities(client_p, 0); |
1462 |
adx |
30 |
|
1463 |
michael |
2134 |
sendto_one(client_p, "SERVER %s 1 :%s%s", me.name, |
1464 |
|
|
ConfigServerHide.hidden ? "(H) " : "", me.info); |
1465 |
adx |
30 |
|
1466 |
|
|
/* If we've been marked dead because a send failed, just exit |
1467 |
|
|
* here now and save everyone the trouble of us ever existing. |
1468 |
|
|
*/ |
1469 |
michael |
2345 |
if (IsDead(client_p)) |
1470 |
adx |
30 |
{ |
1471 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1472 |
michael |
2134 |
"%s[%s] went dead during handshake", |
1473 |
adx |
30 |
client_p->name, |
1474 |
michael |
2134 |
client_p->host); |
1475 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1476 |
michael |
2134 |
"%s went dead during handshake", client_p->name); |
1477 |
adx |
30 |
return; |
1478 |
|
|
} |
1479 |
|
|
|
1480 |
|
|
/* don't move to serv_list yet -- we haven't sent a burst! */ |
1481 |
|
|
/* If we get here, we're ok, so lets start reading some data */ |
1482 |
|
|
comm_setselect(fd, COMM_SELECT_READ, read_packet, client_p, 0); |
1483 |
|
|
} |
1484 |
|
|
|
1485 |
|
|
struct Client * |
1486 |
|
|
find_servconn_in_progress(const char *name) |
1487 |
|
|
{ |
1488 |
|
|
dlink_node *ptr; |
1489 |
|
|
struct Client *cptr; |
1490 |
|
|
|
1491 |
|
|
DLINK_FOREACH(ptr, unknown_list.head) |
1492 |
|
|
{ |
1493 |
|
|
cptr = ptr->data; |
1494 |
|
|
|
1495 |
|
|
if (cptr && cptr->name[0]) |
1496 |
michael |
1652 |
if (!match(name, cptr->name)) |
1497 |
adx |
30 |
return cptr; |
1498 |
|
|
} |
1499 |
michael |
2345 |
|
1500 |
adx |
30 |
return NULL; |
1501 |
|
|
} |