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 client.c |
23 |
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* \brief Controls clients. |
24 |
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* \version $Id$ |
25 |
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*/ |
26 |
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|
27 |
adx |
30 |
#include "stdinc.h" |
28 |
michael |
1011 |
#include "list.h" |
29 |
adx |
30 |
#include "client.h" |
30 |
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#include "channel_mode.h" |
31 |
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#include "event.h" |
32 |
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#include "fdlist.h" |
33 |
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#include "hash.h" |
34 |
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#include "irc_string.h" |
35 |
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#include "ircd.h" |
36 |
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#include "s_gline.h" |
37 |
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#include "numeric.h" |
38 |
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#include "packet.h" |
39 |
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#include "s_auth.h" |
40 |
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#include "s_bsd.h" |
41 |
michael |
1309 |
#include "conf.h" |
42 |
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#include "log.h" |
43 |
adx |
30 |
#include "s_misc.h" |
44 |
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#include "s_serv.h" |
45 |
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#include "send.h" |
46 |
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#include "whowas.h" |
47 |
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#include "s_user.h" |
48 |
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#include "dbuf.h" |
49 |
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#include "memory.h" |
50 |
michael |
1654 |
#include "mempool.h" |
51 |
adx |
30 |
#include "hostmask.h" |
52 |
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#include "listener.h" |
53 |
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#include "irc_res.h" |
54 |
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#include "userhost.h" |
55 |
michael |
876 |
#include "watch.h" |
56 |
michael |
1783 |
#include "rng_mt.h" |
57 |
michael |
2682 |
#include "parse.h" |
58 |
adx |
30 |
|
59 |
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dlink_list listing_client_list = { NULL, NULL, 0 }; |
60 |
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/* Pointer to beginning of Client list */ |
61 |
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dlink_list global_client_list = {NULL, NULL, 0}; |
62 |
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/* unknown/client pointer lists */ |
63 |
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dlink_list unknown_list = {NULL, NULL, 0}; |
64 |
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dlink_list local_client_list = {NULL, NULL, 0}; |
65 |
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dlink_list serv_list = {NULL, NULL, 0}; |
66 |
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dlink_list global_serv_list = {NULL, NULL, 0}; |
67 |
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dlink_list oper_list = {NULL, NULL, 0}; |
68 |
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69 |
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static EVH check_pings; |
70 |
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|
71 |
michael |
1654 |
static mp_pool_t *client_pool = NULL; |
72 |
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static mp_pool_t *lclient_pool = NULL; |
73 |
adx |
30 |
|
74 |
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static dlink_list dead_list = { NULL, NULL, 0}; |
75 |
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static dlink_list abort_list = { NULL, NULL, 0}; |
76 |
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77 |
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static dlink_node *eac_next; /* next aborted client to exit */ |
78 |
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79 |
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static void check_pings_list(dlink_list *); |
80 |
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static void check_unknowns_list(void); |
81 |
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82 |
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|
83 |
michael |
1798 |
/* client_init() |
84 |
adx |
30 |
* |
85 |
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* inputs - NONE |
86 |
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* output - NONE |
87 |
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* side effects - initialize client free memory |
88 |
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*/ |
89 |
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void |
90 |
michael |
1798 |
client_init(void) |
91 |
adx |
30 |
{ |
92 |
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/* start off the check ping event .. -- adrian |
93 |
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* Every 30 seconds is plenty -- db |
94 |
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*/ |
95 |
michael |
1654 |
client_pool = mp_pool_new(sizeof(struct Client), MP_CHUNK_SIZE_CLIENT); |
96 |
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lclient_pool = mp_pool_new(sizeof(struct LocalUser), MP_CHUNK_SIZE_LCLIENT); |
97 |
adx |
30 |
eventAdd("check_pings", check_pings, NULL, 5); |
98 |
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} |
99 |
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100 |
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/* |
101 |
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* make_client - create a new Client struct and set it to initial state. |
102 |
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* |
103 |
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* from == NULL, create local client (a client connected |
104 |
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* to a socket). |
105 |
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* WARNING: This leaves the client in a dangerous |
106 |
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* state where fd == -1, dead flag is not set and |
107 |
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* the client is on the unknown_list; therefore, |
108 |
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* the first thing to do after calling make_client(NULL) |
109 |
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* is setting fd to something reasonable. -adx |
110 |
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* |
111 |
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* from, create remote client (behind a socket |
112 |
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* associated with the client defined by |
113 |
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* 'from'). ('from' is a local client!!). |
114 |
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*/ |
115 |
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struct Client * |
116 |
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make_client(struct Client *from) |
117 |
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{ |
118 |
michael |
1654 |
struct Client *client_p = mp_pool_get(client_pool); |
119 |
adx |
30 |
|
120 |
michael |
1654 |
memset(client_p, 0, sizeof(*client_p)); |
121 |
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122 |
adx |
30 |
if (from == NULL) |
123 |
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{ |
124 |
michael |
1241 |
client_p->from = client_p; /* 'from' of local client is self! */ |
125 |
michael |
1654 |
client_p->localClient = mp_pool_get(lclient_pool); |
126 |
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127 |
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memset(client_p->localClient, 0, sizeof(*client_p->localClient)); |
128 |
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129 |
michael |
1241 |
client_p->localClient->since = CurrentTime; |
130 |
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client_p->localClient->lasttime = CurrentTime; |
131 |
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client_p->localClient->firsttime = CurrentTime; |
132 |
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client_p->localClient->registration = REG_INIT; |
133 |
adx |
30 |
|
134 |
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/* as good a place as any... */ |
135 |
michael |
1126 |
dlinkAdd(client_p, &client_p->localClient->lclient_node, &unknown_list); |
136 |
adx |
30 |
} |
137 |
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else |
138 |
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client_p->from = from; /* 'from' of local client is self! */ |
139 |
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|
140 |
michael |
1360 |
client_p->idhnext = client_p; |
141 |
adx |
30 |
client_p->hnext = client_p; |
142 |
michael |
2678 |
SetUnknown(client_p); |
143 |
adx |
30 |
strcpy(client_p->username, "unknown"); |
144 |
michael |
1559 |
strcpy(client_p->svid, "0"); |
145 |
adx |
30 |
|
146 |
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return client_p; |
147 |
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} |
148 |
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149 |
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/* |
150 |
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* free_client |
151 |
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* |
152 |
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* inputs - pointer to client |
153 |
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* output - NONE |
154 |
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* side effects - client pointed to has its memory freed |
155 |
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*/ |
156 |
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static void |
157 |
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free_client(struct Client *client_p) |
158 |
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{ |
159 |
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assert(client_p != NULL); |
160 |
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assert(client_p != &me); |
161 |
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assert(client_p->hnext == client_p); |
162 |
michael |
1360 |
assert(client_p->idhnext == client_p); |
163 |
adx |
30 |
assert(client_p->channel.head == NULL); |
164 |
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assert(dlink_list_length(&client_p->channel) == 0); |
165 |
michael |
1360 |
assert(dlink_list_length(&client_p->whowas) == 0); |
166 |
michael |
1667 |
assert(!IsServer(client_p) || (IsServer(client_p) && client_p->serv)); |
167 |
adx |
30 |
|
168 |
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MyFree(client_p->serv); |
169 |
michael |
2229 |
MyFree(client_p->certfp); |
170 |
adx |
30 |
|
171 |
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if (MyConnect(client_p)) |
172 |
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{ |
173 |
michael |
317 |
assert(client_p->localClient->invited.head == NULL); |
174 |
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assert(dlink_list_length(&client_p->localClient->invited) == 0); |
175 |
michael |
2345 |
assert(dlink_list_length(&client_p->localClient->watches) == 0); |
176 |
adx |
30 |
assert(IsClosing(client_p) && IsDead(client_p)); |
177 |
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178 |
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MyFree(client_p->localClient->response); |
179 |
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MyFree(client_p->localClient->auth_oper); |
180 |
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181 |
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/* |
182 |
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* clean up extra sockets from P-lines which have been discarded. |
183 |
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*/ |
184 |
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if (client_p->localClient->listener) |
185 |
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{ |
186 |
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assert(0 < client_p->localClient->listener->ref_count); |
187 |
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if (0 == --client_p->localClient->listener->ref_count && |
188 |
michael |
2345 |
!client_p->localClient->listener->active) |
189 |
adx |
30 |
free_listener(client_p->localClient->listener); |
190 |
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} |
191 |
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192 |
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dbuf_clear(&client_p->localClient->buf_recvq); |
193 |
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dbuf_clear(&client_p->localClient->buf_sendq); |
194 |
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195 |
michael |
1654 |
mp_pool_release(client_p->localClient); |
196 |
adx |
30 |
} |
197 |
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198 |
michael |
1654 |
mp_pool_release(client_p); |
199 |
adx |
30 |
} |
200 |
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201 |
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/* |
202 |
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* check_pings - go through the local client list and check activity |
203 |
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* kill off stuff that should die |
204 |
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* |
205 |
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* inputs - NOT USED (from event) |
206 |
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* output - next time_t when check_pings() should be called again |
207 |
michael |
2345 |
* side effects - |
208 |
adx |
30 |
* |
209 |
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* |
210 |
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* A PING can be sent to clients as necessary. |
211 |
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* |
212 |
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* Client/Server ping outs are handled. |
213 |
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*/ |
214 |
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215 |
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/* |
216 |
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* Addon from adrian. We used to call this after nextping seconds, |
217 |
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* however I've changed it to run once a second. This is only for |
218 |
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* PING timeouts, not K/etc-line checks (thanks dianora!). Having it |
219 |
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* run once a second makes life a lot easier - when a new client connects |
220 |
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* and they need a ping in 4 seconds, if nextping was set to 20 seconds |
221 |
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* we end up waiting 20 seconds. This is stupid. :-) |
222 |
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* I will optimise (hah!) check_pings() once I've finished working on |
223 |
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* tidying up other network IO evilnesses. |
224 |
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* -- adrian |
225 |
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*/ |
226 |
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227 |
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static void |
228 |
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check_pings(void *notused) |
229 |
michael |
2345 |
{ |
230 |
adx |
30 |
check_pings_list(&local_client_list); |
231 |
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check_pings_list(&serv_list); |
232 |
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check_unknowns_list(); |
233 |
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} |
234 |
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|
235 |
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/* check_pings_list() |
236 |
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* |
237 |
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* inputs - pointer to list to check |
238 |
|
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* output - NONE |
239 |
michael |
2345 |
* side effects - |
240 |
adx |
30 |
*/ |
241 |
|
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static void |
242 |
|
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check_pings_list(dlink_list *list) |
243 |
|
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{ |
244 |
michael |
2691 |
char scratch[IRCD_BUFSIZE]; |
245 |
michael |
1644 |
int ping = 0; /* ping time value from client */ |
246 |
|
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dlink_node *ptr = NULL, *next_ptr = NULL; |
247 |
adx |
30 |
|
248 |
|
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DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
249 |
|
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{ |
250 |
michael |
1644 |
struct Client *client_p = ptr->data; |
251 |
adx |
30 |
|
252 |
|
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/* |
253 |
|
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** Note: No need to notify opers here. It's |
254 |
|
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** already done when "FLAGS_DEADSOCKET" is set. |
255 |
|
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*/ |
256 |
|
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if (IsDead(client_p)) |
257 |
|
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{ |
258 |
|
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/* Ignore it, its been exited already */ |
259 |
michael |
2345 |
continue; |
260 |
adx |
30 |
} |
261 |
|
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|
262 |
|
|
if (!IsRegistered(client_p)) |
263 |
michael |
1644 |
ping = CONNECTTIMEOUT; |
264 |
adx |
30 |
else |
265 |
michael |
1644 |
ping = get_client_ping(&client_p->localClient->confs); |
266 |
adx |
30 |
|
267 |
michael |
1241 |
if (ping < CurrentTime - client_p->localClient->lasttime) |
268 |
adx |
30 |
{ |
269 |
|
|
if (!IsPingSent(client_p)) |
270 |
|
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{ |
271 |
michael |
2182 |
/* |
272 |
|
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* if we havent PINGed the connection and we havent |
273 |
|
|
* heard from it in a while, PING it to make sure |
274 |
|
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* it is still alive. |
275 |
|
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*/ |
276 |
|
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SetPingSent(client_p); |
277 |
|
|
client_p->localClient->lasttime = CurrentTime - ping; |
278 |
|
|
sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p)); |
279 |
adx |
30 |
} |
280 |
|
|
else |
281 |
|
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{ |
282 |
michael |
1241 |
if (CurrentTime - client_p->localClient->lasttime >= 2 * ping) |
283 |
adx |
30 |
{ |
284 |
|
|
/* |
285 |
|
|
* If the client/server hasn't talked to us in 2*ping seconds |
286 |
|
|
* and it has a ping time, then close its connection. |
287 |
|
|
*/ |
288 |
|
|
if (IsServer(client_p) || IsHandshake(client_p)) |
289 |
michael |
2182 |
{ |
290 |
|
|
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
291 |
|
|
"No response from %s, closing link", |
292 |
|
|
get_client_name(client_p, HIDE_IP)); |
293 |
|
|
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
294 |
|
|
"No response from %s, closing link", |
295 |
|
|
get_client_name(client_p, MASK_IP)); |
296 |
|
|
ilog(LOG_TYPE_IRCD, "No response from %s, closing link", |
297 |
|
|
get_client_name(client_p, HIDE_IP)); |
298 |
|
|
} |
299 |
michael |
650 |
|
300 |
michael |
1124 |
snprintf(scratch, sizeof(scratch), "Ping timeout: %d seconds", |
301 |
michael |
1241 |
(int)(CurrentTime - client_p->localClient->lasttime)); |
302 |
michael |
3171 |
exit_client(client_p, scratch); |
303 |
adx |
30 |
} |
304 |
|
|
} |
305 |
|
|
} |
306 |
|
|
} |
307 |
|
|
} |
308 |
|
|
|
309 |
|
|
/* check_unknowns_list() |
310 |
|
|
* |
311 |
|
|
* inputs - pointer to list of unknown clients |
312 |
|
|
* output - NONE |
313 |
|
|
* side effects - unknown clients get marked for termination after n seconds |
314 |
|
|
*/ |
315 |
|
|
static void |
316 |
|
|
check_unknowns_list(void) |
317 |
|
|
{ |
318 |
|
|
dlink_node *ptr, *next_ptr; |
319 |
|
|
|
320 |
|
|
DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
321 |
|
|
{ |
322 |
|
|
struct Client *client_p = ptr->data; |
323 |
|
|
|
324 |
michael |
650 |
/* |
325 |
|
|
* Check UNKNOWN connections - if they have been in this state |
326 |
adx |
30 |
* for > 30s, close them. |
327 |
|
|
*/ |
328 |
michael |
1241 |
if (IsAuthFinished(client_p) && (CurrentTime - client_p->localClient->firsttime) > 30) |
329 |
michael |
3171 |
exit_client(client_p, "Registration timed out"); |
330 |
adx |
30 |
} |
331 |
|
|
} |
332 |
|
|
|
333 |
|
|
/* check_conf_klines() |
334 |
|
|
* |
335 |
|
|
* inputs - NONE |
336 |
|
|
* output - NONE |
337 |
|
|
* side effects - Check all connections for a pending kline against the |
338 |
|
|
* client, exit the client if a kline matches. |
339 |
|
|
*/ |
340 |
michael |
2345 |
void |
341 |
adx |
30 |
check_conf_klines(void) |
342 |
michael |
2345 |
{ |
343 |
adx |
30 |
struct Client *client_p = NULL; /* current local client_p being examined */ |
344 |
michael |
1632 |
struct MaskItem *conf = NULL; |
345 |
adx |
30 |
dlink_node *ptr, *next_ptr; |
346 |
|
|
|
347 |
|
|
DLINK_FOREACH_SAFE(ptr, next_ptr, local_client_list.head) |
348 |
|
|
{ |
349 |
|
|
client_p = ptr->data; |
350 |
|
|
|
351 |
|
|
/* If a client is already being exited |
352 |
|
|
*/ |
353 |
|
|
if (IsDead(client_p) || !IsClient(client_p)) |
354 |
|
|
continue; |
355 |
|
|
|
356 |
michael |
1632 |
if ((conf = find_dline_conf(&client_p->localClient->ip, |
357 |
adx |
30 |
client_p->localClient->aftype)) != NULL) |
358 |
|
|
{ |
359 |
michael |
1636 |
if (conf->type == CONF_EXEMPT) |
360 |
michael |
2182 |
continue; |
361 |
adx |
30 |
|
362 |
michael |
2813 |
conf_try_ban(client_p, conf); |
363 |
adx |
30 |
continue; /* and go examine next fd/client_p */ |
364 |
|
|
} |
365 |
|
|
|
366 |
michael |
2522 |
if (ConfigFileEntry.glines) |
367 |
adx |
30 |
{ |
368 |
michael |
2739 |
if ((conf = find_conf_by_address(client_p->host, &client_p->localClient->ip, |
369 |
|
|
CONF_GLINE, client_p->localClient->aftype, |
370 |
|
|
client_p->username, NULL, 1))) |
371 |
|
|
{ |
372 |
michael |
2813 |
conf_try_ban(client_p, conf); |
373 |
michael |
2739 |
/* and go examine next fd/client_p */ |
374 |
adx |
30 |
continue; |
375 |
|
|
} |
376 |
michael |
2345 |
} |
377 |
adx |
30 |
|
378 |
michael |
2522 |
if ((conf = find_conf_by_address(client_p->host, &client_p->localClient->ip, |
379 |
|
|
CONF_KLINE, client_p->localClient->aftype, |
380 |
michael |
2739 |
client_p->username, NULL, 1))) |
381 |
adx |
30 |
{ |
382 |
michael |
2813 |
conf_try_ban(client_p, conf); |
383 |
michael |
2345 |
continue; |
384 |
adx |
30 |
} |
385 |
|
|
|
386 |
michael |
1632 |
if ((conf = find_matching_name_conf(CONF_XLINE, client_p->info, |
387 |
michael |
1921 |
NULL, NULL, 0))) |
388 |
adx |
30 |
{ |
389 |
michael |
2813 |
conf_try_ban(client_p, conf); |
390 |
adx |
30 |
continue; |
391 |
|
|
} |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
/* also check the unknowns list for new dlines */ |
395 |
|
|
DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
396 |
|
|
{ |
397 |
|
|
client_p = ptr->data; |
398 |
|
|
|
399 |
michael |
1632 |
if ((conf = find_dline_conf(&client_p->localClient->ip, |
400 |
|
|
client_p->localClient->aftype))) |
401 |
adx |
30 |
{ |
402 |
michael |
1636 |
if (conf->type == CONF_EXEMPT) |
403 |
adx |
30 |
continue; |
404 |
|
|
|
405 |
michael |
3171 |
exit_client(client_p, "D-lined"); |
406 |
adx |
30 |
} |
407 |
|
|
} |
408 |
|
|
} |
409 |
|
|
|
410 |
|
|
/* |
411 |
michael |
2813 |
* conf_try_ban |
412 |
adx |
30 |
* |
413 |
|
|
* inputs - pointer to client to ban |
414 |
michael |
1632 |
* - pointer to MaskItem |
415 |
adx |
30 |
* output - NONE |
416 |
|
|
* side effects - given client_p is banned |
417 |
|
|
*/ |
418 |
michael |
2811 |
void |
419 |
michael |
2813 |
conf_try_ban(struct Client *client_p, struct MaskItem *conf) |
420 |
adx |
30 |
{ |
421 |
michael |
2182 |
const char *user_reason = NULL; /* What is sent to user */ |
422 |
adx |
30 |
const char *type_string = NULL; |
423 |
|
|
const char dline_string[] = "D-line"; |
424 |
|
|
const char kline_string[] = "K-line"; |
425 |
|
|
const char gline_string[] = "G-line"; |
426 |
|
|
const char xline_string[] = "X-line"; |
427 |
|
|
|
428 |
|
|
switch (conf->type) |
429 |
|
|
{ |
430 |
michael |
1632 |
case CONF_KLINE: |
431 |
michael |
2811 |
if (IsExemptKline(client_p)) |
432 |
|
|
{ |
433 |
|
|
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
434 |
|
|
"KLINE over-ruled for %s, client is kline_exempt", |
435 |
|
|
get_client_name(client_p, HIDE_IP)); |
436 |
|
|
return; |
437 |
|
|
} |
438 |
|
|
|
439 |
adx |
30 |
type_string = kline_string; |
440 |
|
|
break; |
441 |
michael |
1632 |
case CONF_DLINE: |
442 |
adx |
30 |
type_string = dline_string; |
443 |
|
|
break; |
444 |
michael |
1632 |
case CONF_GLINE: |
445 |
michael |
2811 |
if (IsExemptKline(client_p) || |
446 |
|
|
IsExemptGline(client_p)) |
447 |
|
|
{ |
448 |
|
|
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
449 |
|
|
"GLINE over-ruled for %s, client is %sline_exempt", |
450 |
|
|
get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g"); |
451 |
|
|
return; |
452 |
|
|
} |
453 |
michael |
2916 |
|
454 |
adx |
30 |
type_string = gline_string; |
455 |
|
|
break; |
456 |
michael |
1632 |
case CONF_XLINE: |
457 |
adx |
30 |
type_string = xline_string; |
458 |
michael |
1632 |
++conf->count; |
459 |
adx |
30 |
break; |
460 |
|
|
default: |
461 |
|
|
assert(0); |
462 |
|
|
break; |
463 |
|
|
} |
464 |
|
|
|
465 |
michael |
1632 |
user_reason = conf->reason ? conf->reason : type_string; |
466 |
adx |
30 |
|
467 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s active for %s", |
468 |
adx |
30 |
type_string, get_client_name(client_p, HIDE_IP)); |
469 |
|
|
|
470 |
|
|
if (IsClient(client_p)) |
471 |
michael |
3109 |
sendto_one_numeric(client_p, &me, ERR_YOUREBANNEDCREEP, user_reason); |
472 |
adx |
30 |
|
473 |
michael |
3171 |
exit_client(client_p, user_reason); |
474 |
adx |
30 |
} |
475 |
|
|
|
476 |
|
|
/* update_client_exit_stats() |
477 |
|
|
* |
478 |
|
|
* input - pointer to client |
479 |
|
|
* output - NONE |
480 |
michael |
2345 |
* side effects - |
481 |
adx |
30 |
*/ |
482 |
|
|
static void |
483 |
|
|
update_client_exit_stats(struct Client *client_p) |
484 |
|
|
{ |
485 |
michael |
1143 |
if (IsClient(client_p)) |
486 |
adx |
30 |
{ |
487 |
michael |
1013 |
assert(Count.total > 0); |
488 |
adx |
30 |
--Count.total; |
489 |
michael |
1219 |
if (HasUMode(client_p, UMODE_OPER)) |
490 |
adx |
30 |
--Count.oper; |
491 |
michael |
1219 |
if (HasUMode(client_p, UMODE_INVISIBLE)) |
492 |
adx |
30 |
--Count.invisi; |
493 |
|
|
} |
494 |
michael |
1143 |
else if (IsServer(client_p)) |
495 |
michael |
1618 |
sendto_realops_flags(UMODE_EXTERNAL, L_ALL, SEND_NOTICE, |
496 |
|
|
"Server %s split from %s", |
497 |
michael |
1143 |
client_p->name, client_p->servptr->name); |
498 |
adx |
30 |
|
499 |
|
|
if (splitchecking && !splitmode) |
500 |
|
|
check_splitmode(NULL); |
501 |
|
|
} |
502 |
|
|
|
503 |
|
|
/* find_person() |
504 |
|
|
* |
505 |
|
|
* inputs - pointer to name |
506 |
|
|
* output - return client pointer |
507 |
|
|
* side effects - find person by (nick)name |
508 |
|
|
*/ |
509 |
|
|
struct Client * |
510 |
michael |
3170 |
find_person(const struct Client *const source_p, const char *name) |
511 |
adx |
30 |
{ |
512 |
michael |
2475 |
struct Client *target_p = NULL; |
513 |
adx |
30 |
|
514 |
|
|
if (IsDigit(*name)) |
515 |
|
|
{ |
516 |
michael |
3207 |
if (IsServer(source_p->from)) |
517 |
michael |
2586 |
target_p = hash_find_id(name); |
518 |
adx |
30 |
} |
519 |
|
|
else |
520 |
michael |
2475 |
target_p = hash_find_client(name); |
521 |
adx |
30 |
|
522 |
michael |
2475 |
return (target_p && IsClient(target_p)) ? target_p : NULL; |
523 |
adx |
30 |
} |
524 |
|
|
|
525 |
|
|
/* |
526 |
michael |
2475 |
* find_chasing - find the client structure for a nick name (name) |
527 |
michael |
2345 |
* using history mechanism if necessary. If the client is not found, |
528 |
michael |
3192 |
* an error message (NO SUCH NICK) is generated. |
529 |
adx |
30 |
*/ |
530 |
|
|
struct Client * |
531 |
michael |
3192 |
find_chasing(struct Client *source_p, const char *name) |
532 |
adx |
30 |
{ |
533 |
michael |
3160 |
struct Client *who = find_person(source_p, name); |
534 |
adx |
30 |
|
535 |
|
|
if (who) |
536 |
michael |
1169 |
return who; |
537 |
adx |
30 |
|
538 |
michael |
2475 |
if (IsDigit(*name)) |
539 |
michael |
1169 |
return NULL; |
540 |
adx |
30 |
|
541 |
michael |
2475 |
if ((who = whowas_get_history(name, |
542 |
michael |
2182 |
(time_t)ConfigFileEntry.kill_chase_time_limit)) |
543 |
|
|
== NULL) |
544 |
adx |
30 |
{ |
545 |
michael |
3109 |
sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, name); |
546 |
michael |
1169 |
return NULL; |
547 |
adx |
30 |
} |
548 |
|
|
|
549 |
michael |
1169 |
return who; |
550 |
adx |
30 |
} |
551 |
|
|
|
552 |
|
|
/* |
553 |
|
|
* get_client_name - Return the name of the client |
554 |
|
|
* for various tracking and |
555 |
|
|
* admin purposes. The main purpose of this function is to |
556 |
|
|
* return the "socket host" name of the client, if that |
557 |
|
|
* differs from the advertised name (other than case). |
558 |
|
|
* But, this can be used to any client structure. |
559 |
|
|
* |
560 |
|
|
* NOTE 1: |
561 |
|
|
* Watch out the allocation of "nbuf", if either source_p->name |
562 |
|
|
* or source_p->sockhost gets changed into pointers instead of |
563 |
|
|
* directly allocated within the structure... |
564 |
|
|
* |
565 |
|
|
* NOTE 2: |
566 |
|
|
* Function return either a pointer to the structure (source_p) or |
567 |
|
|
* to internal buffer (nbuf). *NEVER* use the returned pointer |
568 |
|
|
* to modify what it points!!! |
569 |
|
|
*/ |
570 |
|
|
const char * |
571 |
michael |
1328 |
get_client_name(const struct Client *client, enum addr_mask_type type) |
572 |
adx |
30 |
{ |
573 |
|
|
static char nbuf[HOSTLEN * 2 + USERLEN + 5]; |
574 |
|
|
|
575 |
|
|
assert(client != NULL); |
576 |
|
|
|
577 |
michael |
2345 |
if (!MyConnect(client)) |
578 |
michael |
1124 |
return client->name; |
579 |
adx |
30 |
|
580 |
michael |
1340 |
if (IsServer(client) || IsConnecting(client) || IsHandshake(client)) |
581 |
|
|
{ |
582 |
|
|
if (!irccmp(client->name, client->host)) |
583 |
|
|
return client->name; |
584 |
|
|
else if (ConfigServerHide.hide_server_ips) |
585 |
michael |
1328 |
type = MASK_IP; |
586 |
michael |
1340 |
} |
587 |
adx |
30 |
|
588 |
|
|
if (ConfigFileEntry.hide_spoof_ips) |
589 |
michael |
1328 |
if (type == SHOW_IP && IsIPSpoof(client)) |
590 |
|
|
type = MASK_IP; |
591 |
adx |
30 |
|
592 |
|
|
/* And finally, let's get the host information, ip or name */ |
593 |
michael |
1328 |
switch (type) |
594 |
adx |
30 |
{ |
595 |
|
|
case SHOW_IP: |
596 |
michael |
1339 |
snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
597 |
|
|
client->name, |
598 |
|
|
client->username, client->sockhost); |
599 |
|
|
break; |
600 |
adx |
30 |
case MASK_IP: |
601 |
michael |
1339 |
if (client->localClient->aftype == AF_INET) |
602 |
|
|
snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
603 |
|
|
client->name, client->username); |
604 |
|
|
else |
605 |
|
|
snprintf(nbuf, sizeof(nbuf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]", |
606 |
|
|
client->name, client->username); |
607 |
adx |
30 |
break; |
608 |
|
|
default: |
609 |
michael |
1124 |
snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
610 |
|
|
client->name, |
611 |
|
|
client->username, client->host); |
612 |
adx |
30 |
} |
613 |
|
|
|
614 |
michael |
1124 |
return nbuf; |
615 |
adx |
30 |
} |
616 |
|
|
|
617 |
|
|
void |
618 |
|
|
free_exited_clients(void) |
619 |
|
|
{ |
620 |
michael |
887 |
dlink_node *ptr = NULL, *next = NULL; |
621 |
michael |
2345 |
|
622 |
adx |
30 |
DLINK_FOREACH_SAFE(ptr, next, dead_list.head) |
623 |
|
|
{ |
624 |
michael |
887 |
free_client(ptr->data); |
625 |
adx |
30 |
dlinkDelete(ptr, &dead_list); |
626 |
|
|
free_dlink_node(ptr); |
627 |
|
|
} |
628 |
|
|
} |
629 |
|
|
|
630 |
|
|
/* |
631 |
|
|
* Exit one client, local or remote. Assuming all dependents have |
632 |
|
|
* been already removed, and socket closed for local client. |
633 |
|
|
* |
634 |
|
|
* The only messages generated are QUITs on channels. |
635 |
|
|
*/ |
636 |
|
|
static void |
637 |
|
|
exit_one_client(struct Client *source_p, const char *quitmsg) |
638 |
|
|
{ |
639 |
|
|
dlink_node *lp = NULL, *next_lp = NULL; |
640 |
|
|
|
641 |
|
|
assert(!IsMe(source_p)); |
642 |
|
|
|
643 |
michael |
1118 |
if (IsClient(source_p)) |
644 |
adx |
30 |
{ |
645 |
michael |
3202 |
dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list); |
646 |
adx |
30 |
|
647 |
michael |
1118 |
/* |
648 |
|
|
* If a person is on a channel, send a QUIT notice |
649 |
|
|
* to every client (person) on the same channel (so |
650 |
|
|
* that the client can show the "**signoff" message). |
651 |
|
|
* (Note: The notice is to the local clients *only*) |
652 |
|
|
*/ |
653 |
michael |
1734 |
sendto_common_channels_local(source_p, 0, 0, ":%s!%s@%s QUIT :%s", |
654 |
adx |
30 |
source_p->name, source_p->username, |
655 |
|
|
source_p->host, quitmsg); |
656 |
|
|
DLINK_FOREACH_SAFE(lp, next_lp, source_p->channel.head) |
657 |
|
|
remove_user_from_channel(lp->data); |
658 |
|
|
|
659 |
michael |
2300 |
whowas_add_history(source_p, 0); |
660 |
|
|
whowas_off_history(source_p); |
661 |
adx |
30 |
|
662 |
michael |
876 |
watch_check_hash(source_p, RPL_LOGOFF); |
663 |
|
|
|
664 |
michael |
889 |
if (MyConnect(source_p)) |
665 |
adx |
30 |
{ |
666 |
michael |
317 |
/* Clean up invitefield */ |
667 |
|
|
DLINK_FOREACH_SAFE(lp, next_lp, source_p->localClient->invited.head) |
668 |
|
|
del_invite(lp->data, source_p); |
669 |
michael |
887 |
|
670 |
|
|
del_all_accepts(source_p); |
671 |
michael |
317 |
} |
672 |
adx |
30 |
} |
673 |
michael |
1118 |
else if (IsServer(source_p)) |
674 |
|
|
{ |
675 |
|
|
dlinkDelete(&source_p->lnode, &source_p->servptr->serv->server_list); |
676 |
adx |
30 |
|
677 |
michael |
1118 |
if ((lp = dlinkFindDelete(&global_serv_list, source_p)) != NULL) |
678 |
|
|
free_dlink_node(lp); |
679 |
|
|
} |
680 |
|
|
|
681 |
adx |
30 |
/* Remove source_p from the client lists */ |
682 |
michael |
3187 |
if (source_p->id[0]) |
683 |
adx |
30 |
hash_del_id(source_p); |
684 |
|
|
if (source_p->name[0]) |
685 |
|
|
hash_del_client(source_p); |
686 |
|
|
|
687 |
|
|
if (IsUserHostIp(source_p)) |
688 |
|
|
delete_user_host(source_p->username, source_p->host, !MyConnect(source_p)); |
689 |
|
|
|
690 |
|
|
/* remove from global client list |
691 |
|
|
* NOTE: source_p->node.next cannot be NULL if the client is added |
692 |
|
|
* to global_client_list (there is always &me at its end) |
693 |
|
|
*/ |
694 |
michael |
3171 |
if (source_p->node.next != NULL) /* XXX: not needed? */ |
695 |
adx |
30 |
dlinkDelete(&source_p->node, &global_client_list); |
696 |
|
|
|
697 |
|
|
update_client_exit_stats(source_p); |
698 |
|
|
|
699 |
|
|
/* Check to see if the client isn't already on the dead list */ |
700 |
|
|
assert(dlinkFind(&dead_list, source_p) == NULL); |
701 |
|
|
|
702 |
|
|
/* add to dead client dlist */ |
703 |
|
|
SetDead(source_p); |
704 |
|
|
dlinkAdd(source_p, make_dlink_node(), &dead_list); |
705 |
|
|
} |
706 |
|
|
|
707 |
michael |
2345 |
/* |
708 |
adx |
30 |
* Remove all clients that depend on source_p; assumes all (S)QUITs have |
709 |
michael |
2345 |
* already been sent. we make sure to exit a server's dependent clients |
710 |
|
|
* and servers before the server itself; exit_one_client takes care of |
711 |
adx |
30 |
* actually removing things off llists. tweaked from +CSr31 -orabidoo |
712 |
|
|
*/ |
713 |
|
|
static void |
714 |
|
|
recurse_remove_clients(struct Client *source_p, const char *quitmsg) |
715 |
|
|
{ |
716 |
|
|
dlink_node *ptr, *next; |
717 |
|
|
|
718 |
michael |
889 |
DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head) |
719 |
adx |
30 |
exit_one_client(ptr->data, quitmsg); |
720 |
|
|
|
721 |
michael |
889 |
DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head) |
722 |
adx |
30 |
{ |
723 |
|
|
recurse_remove_clients(ptr->data, quitmsg); |
724 |
|
|
exit_one_client(ptr->data, quitmsg); |
725 |
|
|
} |
726 |
|
|
} |
727 |
|
|
|
728 |
|
|
/* |
729 |
|
|
* exit_client - exit a client of any type. Generally, you can use |
730 |
|
|
* this on any struct Client, regardless of its state. |
731 |
|
|
* |
732 |
|
|
* Note, you shouldn't exit remote _users_ without first doing |
733 |
michael |
1219 |
* AddFlag(x, FLAGS_KILLED) and propagating a kill or similar message. |
734 |
michael |
3171 |
* |
735 |
michael |
1219 |
* However, it is perfectly correct to call exit_client to force a _server_ |
736 |
adx |
30 |
* quit (either local or remote one). |
737 |
|
|
* |
738 |
michael |
3171 |
* |
739 |
adx |
30 |
* inputs: - a client pointer that is going to be exited |
740 |
|
|
* output: none |
741 |
|
|
* side effects: the client is delinked from all lists, disconnected, |
742 |
|
|
* and the rest of IRC network is notified of the exit. |
743 |
|
|
* Client memory is scheduled to be freed |
744 |
|
|
*/ |
745 |
|
|
void |
746 |
michael |
3171 |
exit_client(struct Client *source_p, const char *comment) |
747 |
adx |
30 |
{ |
748 |
michael |
1118 |
dlink_node *m = NULL; |
749 |
michael |
3171 |
/* Store the direction to source_p, close_connection sets it to NULL */ |
750 |
|
|
struct Client *client_p = source_p->from; |
751 |
adx |
30 |
|
752 |
|
|
if (MyConnect(source_p)) |
753 |
|
|
{ |
754 |
|
|
/* DO NOT REMOVE. exit_client can be called twice after a failed |
755 |
|
|
* read/write. |
756 |
|
|
*/ |
757 |
|
|
if (IsClosing(source_p)) |
758 |
|
|
return; |
759 |
|
|
|
760 |
|
|
SetClosing(source_p); |
761 |
|
|
|
762 |
|
|
if (IsIpHash(source_p)) |
763 |
|
|
remove_one_ip(&source_p->localClient->ip); |
764 |
|
|
|
765 |
michael |
2181 |
delete_auth(&source_p->localClient->auth); |
766 |
adx |
30 |
|
767 |
michael |
1571 |
/* |
768 |
|
|
* This source_p could have status of one of STAT_UNKNOWN, STAT_CONNECTING |
769 |
adx |
30 |
* STAT_HANDSHAKE or STAT_UNKNOWN |
770 |
|
|
* all of which are lumped together into unknown_list |
771 |
|
|
* |
772 |
|
|
* In all above cases IsRegistered() will not be true. |
773 |
|
|
*/ |
774 |
|
|
if (!IsRegistered(source_p)) |
775 |
|
|
{ |
776 |
michael |
1126 |
assert(dlinkFind(&unknown_list, source_p)); |
777 |
|
|
|
778 |
|
|
dlinkDelete(&source_p->localClient->lclient_node, &unknown_list); |
779 |
adx |
30 |
} |
780 |
|
|
else if (IsClient(source_p)) |
781 |
|
|
{ |
782 |
michael |
1247 |
time_t on_for = CurrentTime - source_p->localClient->firsttime; |
783 |
michael |
1013 |
assert(Count.local > 0); |
784 |
adx |
30 |
Count.local--; |
785 |
|
|
|
786 |
michael |
1219 |
if (HasUMode(source_p, UMODE_OPER)) |
787 |
adx |
30 |
if ((m = dlinkFindDelete(&oper_list, source_p)) != NULL) |
788 |
|
|
free_dlink_node(m); |
789 |
|
|
|
790 |
michael |
1126 |
assert(dlinkFind(&local_client_list, source_p)); |
791 |
adx |
30 |
dlinkDelete(&source_p->localClient->lclient_node, &local_client_list); |
792 |
michael |
1126 |
|
793 |
adx |
30 |
if (source_p->localClient->list_task != NULL) |
794 |
|
|
free_list_task(source_p->localClient->list_task, source_p); |
795 |
|
|
|
796 |
michael |
876 |
watch_del_watch_list(source_p); |
797 |
michael |
1618 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
798 |
|
|
"Client exiting: %s (%s@%s) [%s] [%s]", |
799 |
adx |
30 |
source_p->name, source_p->username, source_p->host, comment, |
800 |
|
|
ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ? |
801 |
|
|
"255.255.255.255" : source_p->sockhost); |
802 |
michael |
1247 |
ilog(LOG_TYPE_USER, "%s (%3u:%02u:%02u): %s!%s@%s %llu/%llu", |
803 |
|
|
myctime(source_p->localClient->firsttime), (unsigned int)(on_for / 3600), |
804 |
|
|
(unsigned int)((on_for % 3600)/60), (unsigned int)(on_for % 60), |
805 |
|
|
source_p->name, source_p->username, source_p->host, |
806 |
|
|
source_p->localClient->send.bytes>>10, |
807 |
|
|
source_p->localClient->recv.bytes>>10); |
808 |
adx |
30 |
} |
809 |
michael |
1571 |
else if (IsServer(source_p)) |
810 |
adx |
30 |
{ |
811 |
michael |
1571 |
assert(Count.myserver > 0); |
812 |
|
|
--Count.myserver; |
813 |
adx |
30 |
|
814 |
michael |
1571 |
assert(dlinkFind(&serv_list, source_p)); |
815 |
|
|
dlinkDelete(&source_p->localClient->lclient_node, &serv_list); |
816 |
adx |
30 |
} |
817 |
|
|
|
818 |
|
|
if (!IsDead(source_p)) |
819 |
|
|
{ |
820 |
|
|
if (IsServer(source_p)) |
821 |
|
|
{ |
822 |
michael |
3171 |
if (!HasFlag(source_p, FLAGS_SQUIT)) |
823 |
|
|
{ |
824 |
|
|
/* for them, we are exiting the network */ |
825 |
|
|
sendto_one(source_p, ":%s SQUIT %s :%s", |
826 |
michael |
3186 |
me.id, me.id, comment); |
827 |
michael |
3171 |
} |
828 |
adx |
30 |
} |
829 |
|
|
|
830 |
|
|
sendto_one(source_p, "ERROR :Closing Link: %s (%s)", |
831 |
|
|
source_p->host, comment); |
832 |
|
|
} |
833 |
|
|
|
834 |
|
|
/* |
835 |
|
|
** Currently only server connections can have |
836 |
|
|
** depending remote clients here, but it does no |
837 |
|
|
** harm to check for all local clients. In |
838 |
|
|
** future some other clients than servers might |
839 |
|
|
** have remotes too... |
840 |
|
|
** |
841 |
|
|
** Close the Client connection first and mark it |
842 |
|
|
** so that no messages are attempted to send to it. |
843 |
|
|
** Remember it makes source_p->from == NULL. |
844 |
|
|
*/ |
845 |
|
|
close_connection(source_p); |
846 |
|
|
} |
847 |
michael |
1991 |
else if (IsClient(source_p) && HasFlag(source_p->servptr, FLAGS_EOB)) |
848 |
michael |
1976 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
849 |
|
|
"Client exiting at %s: %s (%s@%s) [%s]", |
850 |
|
|
source_p->servptr->name, source_p->name, |
851 |
|
|
source_p->username, source_p->host, comment); |
852 |
adx |
30 |
|
853 |
|
|
if (IsServer(source_p)) |
854 |
|
|
{ |
855 |
michael |
3171 |
char splitstr[HOSTLEN + HOSTLEN + 2] = ""; |
856 |
adx |
30 |
|
857 |
|
|
/* This shouldn't ever happen */ |
858 |
|
|
assert(source_p->serv != NULL && source_p->servptr != NULL); |
859 |
|
|
|
860 |
|
|
if (ConfigServerHide.hide_servers) |
861 |
michael |
887 |
/* |
862 |
michael |
2345 |
* Set netsplit message to "*.net *.split" to still show |
863 |
adx |
30 |
* that its a split, but hide the servers splitting |
864 |
|
|
*/ |
865 |
michael |
3171 |
strlcpy(splitstr, "*.net *.split", sizeof(splitstr)); |
866 |
adx |
30 |
else |
867 |
|
|
snprintf(splitstr, sizeof(splitstr), "%s %s", |
868 |
|
|
source_p->servptr->name, source_p->name); |
869 |
|
|
|
870 |
michael |
3171 |
/* Send SQUIT for source_p in every direction. source_p is already off of serv_list here */ |
871 |
|
|
if (!HasFlag(source_p, FLAGS_SQUIT)) |
872 |
michael |
3186 |
sendto_server(NULL, NOCAPS, NOCAPS, "SQUIT %s :%s", source_p->id, comment); |
873 |
adx |
30 |
|
874 |
michael |
3171 |
/* Now exit the clients internally */ |
875 |
|
|
recurse_remove_clients(source_p, splitstr); |
876 |
|
|
|
877 |
adx |
30 |
if (source_p->servptr == &me) |
878 |
|
|
{ |
879 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
880 |
adx |
30 |
"%s was connected for %d seconds. %llu/%llu sendK/recvK.", |
881 |
michael |
1241 |
source_p->name, (int)(CurrentTime - source_p->localClient->firsttime), |
882 |
adx |
30 |
source_p->localClient->send.bytes >> 10, |
883 |
|
|
source_p->localClient->recv.bytes >> 10); |
884 |
michael |
1247 |
ilog(LOG_TYPE_IRCD, "%s was connected for %d seconds. %llu/%llu sendK/recvK.", |
885 |
michael |
2345 |
source_p->name, (int)(CurrentTime - source_p->localClient->firsttime), |
886 |
adx |
30 |
source_p->localClient->send.bytes >> 10, |
887 |
|
|
source_p->localClient->recv.bytes >> 10); |
888 |
|
|
} |
889 |
|
|
} |
890 |
michael |
1219 |
else if (IsClient(source_p) && !HasFlag(source_p, FLAGS_KILLED)) |
891 |
michael |
3171 |
sendto_server(client_p, NOCAPS, NOCAPS, ":%s QUIT :%s", |
892 |
michael |
3186 |
source_p->id, comment); |
893 |
adx |
30 |
|
894 |
|
|
/* The client *better* be off all of the lists */ |
895 |
|
|
assert(dlinkFind(&unknown_list, source_p) == NULL); |
896 |
|
|
assert(dlinkFind(&local_client_list, source_p) == NULL); |
897 |
|
|
assert(dlinkFind(&serv_list, source_p) == NULL); |
898 |
|
|
assert(dlinkFind(&oper_list, source_p) == NULL); |
899 |
|
|
|
900 |
|
|
exit_one_client(source_p, comment); |
901 |
|
|
} |
902 |
|
|
|
903 |
|
|
/* |
904 |
|
|
* dead_link_on_write - report a write error if not already dead, |
905 |
|
|
* mark it as dead then exit it |
906 |
|
|
*/ |
907 |
|
|
void |
908 |
|
|
dead_link_on_write(struct Client *client_p, int ierrno) |
909 |
|
|
{ |
910 |
|
|
dlink_node *ptr; |
911 |
|
|
|
912 |
|
|
if (IsDefunct(client_p)) |
913 |
|
|
return; |
914 |
|
|
|
915 |
|
|
dbuf_clear(&client_p->localClient->buf_recvq); |
916 |
|
|
dbuf_clear(&client_p->localClient->buf_sendq); |
917 |
|
|
|
918 |
|
|
assert(dlinkFind(&abort_list, client_p) == NULL); |
919 |
|
|
ptr = make_dlink_node(); |
920 |
|
|
/* don't let exit_aborted_clients() finish yet */ |
921 |
|
|
dlinkAddTail(client_p, ptr, &abort_list); |
922 |
|
|
|
923 |
|
|
if (eac_next == NULL) |
924 |
|
|
eac_next = ptr; |
925 |
|
|
|
926 |
|
|
SetDead(client_p); /* You are dead my friend */ |
927 |
|
|
} |
928 |
|
|
|
929 |
|
|
/* |
930 |
|
|
* dead_link_on_read - report a read error if not already dead, |
931 |
|
|
* mark it as dead then exit it |
932 |
|
|
*/ |
933 |
|
|
void |
934 |
|
|
dead_link_on_read(struct Client *client_p, int error) |
935 |
|
|
{ |
936 |
michael |
2691 |
char errmsg[IRCD_BUFSIZE]; |
937 |
adx |
30 |
int current_error; |
938 |
|
|
|
939 |
|
|
if (IsDefunct(client_p)) |
940 |
|
|
return; |
941 |
|
|
|
942 |
|
|
dbuf_clear(&client_p->localClient->buf_recvq); |
943 |
|
|
dbuf_clear(&client_p->localClient->buf_sendq); |
944 |
|
|
|
945 |
|
|
current_error = get_sockerr(client_p->localClient->fd.fd); |
946 |
|
|
|
947 |
|
|
if (IsServer(client_p) || IsHandshake(client_p)) |
948 |
|
|
{ |
949 |
michael |
1241 |
int connected = CurrentTime - client_p->localClient->firsttime; |
950 |
michael |
2345 |
|
951 |
adx |
30 |
if (error == 0) |
952 |
|
|
{ |
953 |
|
|
/* Admins get the real IP */ |
954 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
955 |
michael |
2182 |
"Server %s closed the connection", |
956 |
|
|
get_client_name(client_p, SHOW_IP)); |
957 |
adx |
30 |
|
958 |
|
|
/* Opers get a masked IP */ |
959 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
960 |
michael |
2182 |
"Server %s closed the connection", |
961 |
|
|
get_client_name(client_p, MASK_IP)); |
962 |
adx |
30 |
|
963 |
michael |
1247 |
ilog(LOG_TYPE_IRCD, "Server %s closed the connection", |
964 |
michael |
2182 |
get_client_name(client_p, SHOW_IP)); |
965 |
adx |
30 |
} |
966 |
|
|
else |
967 |
|
|
{ |
968 |
michael |
617 |
report_error(L_ADMIN, "Lost connection to %s: %s", |
969 |
michael |
2182 |
get_client_name(client_p, SHOW_IP), current_error); |
970 |
michael |
617 |
report_error(L_OPER, "Lost connection to %s: %s", |
971 |
michael |
2182 |
get_client_name(client_p, MASK_IP), current_error); |
972 |
adx |
30 |
} |
973 |
|
|
|
974 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
975 |
michael |
2182 |
"%s had been connected for %d day%s, %2d:%02d:%02d", |
976 |
|
|
client_p->name, connected/86400, |
977 |
|
|
(connected/86400 == 1) ? "" : "s", |
978 |
|
|
(connected % 86400) / 3600, (connected % 3600) / 60, |
979 |
|
|
connected % 60); |
980 |
adx |
30 |
} |
981 |
|
|
|
982 |
|
|
if (error == 0) |
983 |
|
|
strlcpy(errmsg, "Remote host closed the connection", |
984 |
|
|
sizeof(errmsg)); |
985 |
|
|
else |
986 |
michael |
1124 |
snprintf(errmsg, sizeof(errmsg), "Read error: %s", |
987 |
|
|
strerror(current_error)); |
988 |
adx |
30 |
|
989 |
michael |
3171 |
exit_client(client_p, errmsg); |
990 |
adx |
30 |
} |
991 |
|
|
|
992 |
|
|
void |
993 |
|
|
exit_aborted_clients(void) |
994 |
|
|
{ |
995 |
|
|
dlink_node *ptr; |
996 |
|
|
struct Client *target_p; |
997 |
|
|
const char *notice; |
998 |
|
|
|
999 |
|
|
DLINK_FOREACH_SAFE(ptr, eac_next, abort_list.head) |
1000 |
|
|
{ |
1001 |
|
|
target_p = ptr->data; |
1002 |
|
|
eac_next = ptr->next; |
1003 |
|
|
|
1004 |
|
|
if (target_p == NULL) |
1005 |
|
|
{ |
1006 |
michael |
1618 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1007 |
adx |
30 |
"Warning: null client on abort_list!"); |
1008 |
|
|
dlinkDelete(ptr, &abort_list); |
1009 |
|
|
free_dlink_node(ptr); |
1010 |
|
|
continue; |
1011 |
|
|
} |
1012 |
|
|
|
1013 |
|
|
dlinkDelete(ptr, &abort_list); |
1014 |
|
|
|
1015 |
|
|
if (IsSendQExceeded(target_p)) |
1016 |
|
|
notice = "Max SendQ exceeded"; |
1017 |
|
|
else |
1018 |
|
|
notice = "Write error: connection closed"; |
1019 |
|
|
|
1020 |
michael |
3171 |
exit_client(target_p, notice); |
1021 |
adx |
30 |
free_dlink_node(ptr); |
1022 |
|
|
} |
1023 |
|
|
} |
1024 |
|
|
|
1025 |
|
|
/* |
1026 |
|
|
* accept processing, this adds a form of "caller ID" to ircd |
1027 |
michael |
887 |
* |
1028 |
adx |
30 |
* If a client puts themselves into "caller ID only" mode, |
1029 |
michael |
887 |
* only clients that match a client pointer they have put on |
1030 |
adx |
30 |
* the accept list will be allowed to message them. |
1031 |
|
|
* |
1032 |
michael |
887 |
* Diane Bruce, "Dianora" db@db.net |
1033 |
adx |
30 |
*/ |
1034 |
|
|
|
1035 |
michael |
887 |
void |
1036 |
|
|
del_accept(struct split_nuh_item *accept_p, struct Client *client_p) |
1037 |
adx |
30 |
{ |
1038 |
michael |
887 |
dlinkDelete(&accept_p->node, &client_p->localClient->acceptlist); |
1039 |
adx |
30 |
|
1040 |
michael |
887 |
MyFree(accept_p->nickptr); |
1041 |
|
|
MyFree(accept_p->userptr); |
1042 |
|
|
MyFree(accept_p->hostptr); |
1043 |
|
|
MyFree(accept_p); |
1044 |
|
|
} |
1045 |
adx |
30 |
|
1046 |
michael |
887 |
struct split_nuh_item * |
1047 |
|
|
find_accept(const char *nick, const char *user, |
1048 |
michael |
2363 |
const char *host, struct Client *client_p, |
1049 |
|
|
int (*cmpfunc)(const char *, const char *)) |
1050 |
michael |
887 |
{ |
1051 |
|
|
dlink_node *ptr = NULL; |
1052 |
adx |
30 |
|
1053 |
michael |
887 |
DLINK_FOREACH(ptr, client_p->localClient->acceptlist.head) |
1054 |
adx |
30 |
{ |
1055 |
michael |
887 |
struct split_nuh_item *accept_p = ptr->data; |
1056 |
|
|
|
1057 |
michael |
1652 |
if (!cmpfunc(accept_p->nickptr, nick) && |
1058 |
|
|
!cmpfunc(accept_p->userptr, user) && |
1059 |
|
|
!cmpfunc(accept_p->hostptr, host)) |
1060 |
michael |
887 |
return accept_p; |
1061 |
adx |
30 |
} |
1062 |
|
|
|
1063 |
michael |
887 |
return NULL; |
1064 |
adx |
30 |
} |
1065 |
|
|
|
1066 |
michael |
887 |
/* accept_message() |
1067 |
adx |
30 |
* |
1068 |
michael |
887 |
* inputs - pointer to source client |
1069 |
|
|
* - pointer to target client |
1070 |
|
|
* output - 1 if accept this message 0 if not |
1071 |
|
|
* side effects - See if source is on target's allow list |
1072 |
adx |
30 |
*/ |
1073 |
michael |
887 |
int |
1074 |
|
|
accept_message(struct Client *source, |
1075 |
|
|
struct Client *target) |
1076 |
adx |
30 |
{ |
1077 |
michael |
887 |
dlink_node *ptr = NULL; |
1078 |
adx |
30 |
|
1079 |
michael |
887 |
if (source == target || find_accept(source->name, source->username, |
1080 |
michael |
2363 |
source->host, target, match)) |
1081 |
michael |
887 |
return 1; |
1082 |
adx |
30 |
|
1083 |
michael |
1219 |
if (HasUMode(target, UMODE_SOFTCALLERID)) |
1084 |
michael |
887 |
DLINK_FOREACH(ptr, target->channel.head) |
1085 |
|
|
if (IsMember(source, ((struct Membership *)ptr->data)->chptr)) |
1086 |
|
|
return 1; |
1087 |
adx |
30 |
|
1088 |
michael |
887 |
return 0; |
1089 |
adx |
30 |
} |
1090 |
|
|
|
1091 |
|
|
/* del_all_accepts() |
1092 |
|
|
* |
1093 |
michael |
887 |
* inputs - pointer to exiting client |
1094 |
|
|
* output - NONE |
1095 |
|
|
* side effects - Walk through given clients acceptlist and remove all entries |
1096 |
adx |
30 |
*/ |
1097 |
|
|
void |
1098 |
|
|
del_all_accepts(struct Client *client_p) |
1099 |
|
|
{ |
1100 |
michael |
887 |
dlink_node *ptr = NULL, *next_ptr = NULL; |
1101 |
adx |
30 |
|
1102 |
michael |
887 |
DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->acceptlist.head) |
1103 |
|
|
del_accept(ptr->data, client_p); |
1104 |
adx |
30 |
} |
1105 |
michael |
1783 |
|
1106 |
|
|
unsigned int |
1107 |
|
|
idle_time_get(const struct Client *source_p, const struct Client *target_p) |
1108 |
|
|
{ |
1109 |
|
|
unsigned int idle = 0; |
1110 |
|
|
unsigned int min_idle = 0; |
1111 |
|
|
unsigned int max_idle = 0; |
1112 |
michael |
1847 |
const struct ClassItem *class = get_class_ptr(&target_p->localClient->confs); |
1113 |
michael |
1783 |
|
1114 |
michael |
1785 |
if (!(class->flags & CLASS_FLAGS_FAKE_IDLE) || target_p == source_p) |
1115 |
michael |
1783 |
return CurrentTime - target_p->localClient->last_privmsg; |
1116 |
|
|
if (HasUMode(source_p, UMODE_OPER) && |
1117 |
michael |
1785 |
!(class->flags & CLASS_FLAGS_HIDE_IDLE_FROM_OPERS)) |
1118 |
michael |
1783 |
return CurrentTime - target_p->localClient->last_privmsg; |
1119 |
|
|
|
1120 |
|
|
min_idle = class->min_idle; |
1121 |
|
|
max_idle = class->max_idle; |
1122 |
|
|
|
1123 |
|
|
if (min_idle == max_idle) |
1124 |
|
|
return min_idle; |
1125 |
|
|
|
1126 |
|
|
if (class->flags & CLASS_FLAGS_RANDOM_IDLE) |
1127 |
|
|
idle = genrand_int32(); |
1128 |
|
|
else |
1129 |
|
|
idle = CurrentTime - target_p->localClient->last_privmsg; |
1130 |
|
|
|
1131 |
|
|
if (max_idle == 0) |
1132 |
|
|
idle = 0; |
1133 |
|
|
else |
1134 |
|
|
idle %= max_idle; |
1135 |
|
|
|
1136 |
|
|
if (idle < min_idle) |
1137 |
|
|
idle = min_idle + (idle % (max_idle - min_idle)); |
1138 |
|
|
|
1139 |
|
|
return idle; |
1140 |
|
|
} |