1 |
adx |
30 |
/* |
2 |
michael |
2916 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
adx |
30 |
* |
4 |
michael |
8279 |
* Copyright (c) 1997-2018 ircd-hybrid development team |
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adx |
30 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
18 |
michael |
4565 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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adx |
30 |
* USA |
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*/ |
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michael |
5563 |
/*! \file user.c |
23 |
michael |
2916 |
* \brief User related functions. |
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* \version $Id$ |
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*/ |
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|
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adx |
30 |
#include "stdinc.h" |
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michael |
1011 |
#include "list.h" |
29 |
michael |
3347 |
#include "user.h" |
30 |
adx |
30 |
#include "channel.h" |
31 |
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#include "channel_mode.h" |
32 |
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#include "client.h" |
33 |
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#include "hash.h" |
34 |
michael |
6161 |
#include "id.h" |
35 |
adx |
30 |
#include "irc_string.h" |
36 |
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#include "ircd.h" |
37 |
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#include "listener.h" |
38 |
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#include "motd.h" |
39 |
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#include "numeric.h" |
40 |
michael |
1309 |
#include "conf.h" |
41 |
michael |
7304 |
#include "conf_gecos.h" |
42 |
michael |
1309 |
#include "log.h" |
43 |
michael |
3347 |
#include "server.h" |
44 |
michael |
8214 |
#include "server_capab.h" /* TBR: RHOST compatibility mode */ |
45 |
adx |
30 |
#include "send.h" |
46 |
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#include "memory.h" |
47 |
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#include "packet.h" |
48 |
michael |
982 |
#include "rng_mt.h" |
49 |
michael |
3347 |
#include "misc.h" |
50 |
michael |
1243 |
#include "parse.h" |
51 |
michael |
876 |
#include "watch.h" |
52 |
michael |
6185 |
#include "isupport.h" |
53 |
michael |
7105 |
#include "tls.h" |
54 |
adx |
30 |
|
55 |
michael |
8063 |
static char umode_buffer[UMODE_MAX_STR]; |
56 |
adx |
30 |
|
57 |
michael |
5392 |
const struct user_modes *umode_map[256]; |
58 |
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const struct user_modes umode_tab[] = |
59 |
adx |
30 |
{ |
60 |
michael |
5392 |
{ 'D', UMODE_DEAF }, |
61 |
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{ 'F', UMODE_FARCONNECT }, |
62 |
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{ 'G', UMODE_SOFTCALLERID }, |
63 |
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{ 'H', UMODE_HIDDEN }, |
64 |
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{ 'R', UMODE_REGONLY }, |
65 |
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{ 'S', UMODE_SSL }, |
66 |
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{ 'W', UMODE_WEBIRC }, |
67 |
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{ 'a', UMODE_ADMIN }, |
68 |
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{ 'b', UMODE_BOTS }, |
69 |
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{ 'c', UMODE_CCONN }, |
70 |
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{ 'd', UMODE_DEBUG }, |
71 |
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{ 'e', UMODE_EXTERNAL }, |
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{ 'f', UMODE_FULL }, |
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{ 'g', UMODE_CALLERID }, |
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{ 'i', UMODE_INVISIBLE }, |
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{ 'j', UMODE_REJ }, |
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{ 'k', UMODE_SKILL }, |
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{ 'l', UMODE_LOCOPS }, |
78 |
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{ 'n', UMODE_NCHANGE }, |
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{ 'o', UMODE_OPER }, |
80 |
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{ 'p', UMODE_HIDECHANS }, |
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{ 'q', UMODE_HIDEIDLE }, |
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{ 'r', UMODE_REGISTERED }, |
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{ 's', UMODE_SERVNOTICE }, |
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{ 'u', UMODE_UNAUTH }, |
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{ 'w', UMODE_WALLOP }, |
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{ 'y', UMODE_SPY }, |
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{ '\0', 0 } |
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adx |
30 |
}; |
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void |
91 |
michael |
6189 |
user_modes_init(void) |
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adx |
30 |
{ |
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char *umode_buffer_ptr = umode_buffer; |
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michael |
5392 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
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{ |
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umode_map[tab->c] = tab; |
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*umode_buffer_ptr++ = tab->c; |
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} |
100 |
adx |
30 |
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*umode_buffer_ptr = '\0'; |
102 |
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} |
103 |
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104 |
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/* show_lusers() |
105 |
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* |
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* inputs - pointer to client |
107 |
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* output - NONE |
108 |
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* side effects - display to client user counts etc. |
109 |
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*/ |
110 |
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void |
111 |
michael |
7610 |
show_lusers(struct Client *client_p) |
112 |
adx |
30 |
{ |
113 |
michael |
7610 |
if (!ConfigServerHide.hide_servers || HasUMode(client_p, UMODE_OPER)) |
114 |
michael |
7965 |
sendto_one_numeric(client_p, &me, RPL_LUSERCLIENT, (dlink_list_length(&global_client_list) - Count.invisi), |
115 |
michael |
4209 |
Count.invisi, dlink_list_length(&global_server_list)); |
116 |
adx |
30 |
else |
117 |
michael |
7965 |
sendto_one_numeric(client_p, &me, RPL_LUSERCLIENT, (dlink_list_length(&global_client_list) - Count.invisi), |
118 |
michael |
4724 |
Count.invisi, 1); |
119 |
adx |
30 |
|
120 |
michael |
3375 |
if (Count.oper) |
121 |
michael |
7610 |
sendto_one_numeric(client_p, &me, RPL_LUSEROP, Count.oper); |
122 |
adx |
30 |
|
123 |
michael |
3375 |
if (dlink_list_length(&unknown_list)) |
124 |
michael |
7610 |
sendto_one_numeric(client_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list)); |
125 |
adx |
30 |
|
126 |
michael |
8439 |
if (dlink_list_length(channel_get_list())) |
127 |
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sendto_one_numeric(client_p, &me, RPL_LUSERCHANNELS, dlink_list_length(channel_get_list())); |
128 |
adx |
30 |
|
129 |
michael |
7610 |
if (!ConfigServerHide.hide_servers || HasUMode(client_p, UMODE_OPER)) |
130 |
adx |
30 |
{ |
131 |
michael |
7969 |
sendto_one_numeric(client_p, &me, RPL_LUSERME, dlink_list_length(&local_client_list), dlink_list_length(&local_server_list)); |
132 |
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sendto_one_numeric(client_p, &me, RPL_LOCALUSERS, dlink_list_length(&local_client_list), Count.max_loc); |
133 |
michael |
8061 |
sendto_one_numeric(client_p, &me, RPL_GLOBALUSERS, dlink_list_length(&global_client_list), Count.max_tot); |
134 |
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sendto_one_numeric(client_p, &me, RPL_STATSCONN, Count.max_loc_con, Count.max_loc, Count.totalrestartcount); |
135 |
adx |
30 |
} |
136 |
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else |
137 |
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{ |
138 |
michael |
7965 |
sendto_one_numeric(client_p, &me, RPL_LUSERME, dlink_list_length(&global_client_list), 0); |
139 |
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sendto_one_numeric(client_p, &me, RPL_LOCALUSERS, dlink_list_length(&global_client_list), Count.max_tot); |
140 |
michael |
8061 |
sendto_one_numeric(client_p, &me, RPL_GLOBALUSERS, dlink_list_length(&global_client_list), Count.max_tot); |
141 |
adx |
30 |
} |
142 |
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} |
143 |
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144 |
michael |
3272 |
/* report_and_set_user_flags() |
145 |
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* |
146 |
michael |
7610 |
* inputs - pointer to client_p |
147 |
michael |
3272 |
* - pointer to conf for this user |
148 |
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* output - NONE |
149 |
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* side effects - Report to user any special flags |
150 |
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* they are getting, and set them. |
151 |
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*/ |
152 |
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static void |
153 |
michael |
7610 |
report_and_set_user_flags(struct Client *client_p, const struct MaskItem *conf) |
154 |
michael |
3272 |
{ |
155 |
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/* If this user is being spoofed, tell them so */ |
156 |
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if (IsConfDoSpoofIp(conf)) |
157 |
michael |
7610 |
sendto_one_notice(client_p, &me, ":*** Spoofing your IP"); |
158 |
michael |
3272 |
|
159 |
michael |
4856 |
/* If this user is in the exception class, set it "E lined" */ |
160 |
michael |
3272 |
if (IsConfExemptKline(conf)) |
161 |
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{ |
162 |
michael |
7610 |
AddFlag(client_p, FLAGS_EXEMPTKLINE); |
163 |
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sendto_one_notice(client_p, &me, ":*** You are exempt from K/D lines"); |
164 |
michael |
3272 |
} |
165 |
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166 |
michael |
5985 |
if (IsConfExemptXline(conf)) |
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{ |
168 |
michael |
7610 |
AddFlag(client_p, FLAGS_EXEMPTXLINE); |
169 |
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sendto_one_notice(client_p, &me, ":*** You are exempt from X lines"); |
170 |
michael |
5985 |
} |
171 |
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172 |
michael |
3272 |
if (IsConfExemptResv(conf)) |
173 |
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{ |
174 |
michael |
7610 |
AddFlag(client_p, FLAGS_EXEMPTRESV); |
175 |
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sendto_one_notice(client_p, &me, ":*** You are exempt from resvs"); |
176 |
michael |
3272 |
} |
177 |
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178 |
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/* If this user is exempt from user limits set it "F lined" */ |
179 |
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if (IsConfExemptLimits(conf)) |
180 |
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{ |
181 |
michael |
7610 |
AddFlag(client_p, FLAGS_NOLIMIT); |
182 |
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sendto_one_notice(client_p, &me, ":*** You are exempt from user limits"); |
183 |
michael |
3272 |
} |
184 |
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185 |
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if (IsConfCanFlood(conf)) |
186 |
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{ |
187 |
michael |
7610 |
AddFlag(client_p, FLAGS_CANFLOOD); |
188 |
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sendto_one_notice(client_p, &me, ":*** You are exempt from flood protection"); |
189 |
michael |
3272 |
} |
190 |
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} |
191 |
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192 |
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/* introduce_client() |
193 |
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* |
194 |
michael |
7610 |
* inputs - client_p |
195 |
michael |
3272 |
* output - NONE |
196 |
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* side effects - This common function introduces a client to the rest |
197 |
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* of the net, either from a local client connect or |
198 |
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* from a remote connect. |
199 |
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*/ |
200 |
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static void |
201 |
michael |
7610 |
introduce_client(struct Client *client_p) |
202 |
michael |
3272 |
{ |
203 |
michael |
8059 |
dlink_node *node; |
204 |
michael |
8063 |
char buf[UMODE_MAX_STR] = ""; |
205 |
michael |
3272 |
|
206 |
michael |
8063 |
send_umode(client_p, MyConnect(client_p), 0, buf); |
207 |
michael |
7610 |
watch_check_hash(client_p, RPL_LOGON); |
208 |
michael |
3272 |
|
209 |
michael |
8063 |
if (buf[0] == '\0') |
210 |
michael |
3272 |
{ |
211 |
michael |
8063 |
buf[0] = '+'; |
212 |
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buf[1] = '\0'; |
213 |
michael |
3272 |
} |
214 |
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|
215 |
michael |
4815 |
DLINK_FOREACH(node, local_server_list.head) |
216 |
michael |
3272 |
{ |
217 |
michael |
7610 |
struct Client *server_p = node->data; |
218 |
michael |
3272 |
|
219 |
michael |
7610 |
if (server_p == client_p->from) |
220 |
michael |
3272 |
continue; |
221 |
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|
222 |
michael |
8214 |
/* TBR: compatibility mode */ |
223 |
|
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if (IsCapable(server_p, CAPAB_RHOST)) |
224 |
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sendto_one(server_p, ":%s UID %s %u %ju %s %s %s %s %s %s %s :%s", |
225 |
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client_p->servptr->id, |
226 |
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client_p->name, client_p->hopcount+1, |
227 |
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client_p->tsinfo, |
228 |
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buf, client_p->username, client_p->host, client_p->realhost, |
229 |
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client_p->sockhost, client_p->id, |
230 |
|
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client_p->account, |
231 |
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client_p->info); |
232 |
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else |
233 |
|
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sendto_one(server_p, ":%s UID %s %u %ju %s %s %s %s %s %s :%s", |
234 |
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client_p->servptr->id, |
235 |
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client_p->name, client_p->hopcount+1, |
236 |
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client_p->tsinfo, |
237 |
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buf, client_p->username, client_p->host, |
238 |
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client_p->sockhost, client_p->id, |
239 |
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client_p->account, |
240 |
|
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client_p->info); |
241 |
michael |
3272 |
|
242 |
michael |
7610 |
if (!EmptyString(client_p->certfp)) |
243 |
|
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sendto_one(server_p, ":%s CERTFP %s", client_p->id, client_p->certfp); |
244 |
michael |
3272 |
} |
245 |
|
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} |
246 |
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|
247 |
|
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/* user_welcome() |
248 |
|
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* |
249 |
|
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* inputs - client pointer to client to welcome |
250 |
|
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* output - NONE |
251 |
|
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* side effects - |
252 |
|
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*/ |
253 |
|
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static void |
254 |
michael |
7610 |
user_welcome(struct Client *client_p) |
255 |
michael |
3272 |
{ |
256 |
|
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static const char built_date[] = __DATE__ " at " __TIME__; |
257 |
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|
258 |
michael |
7610 |
if (HasFlag(client_p, FLAGS_SSL)) |
259 |
michael |
3272 |
{ |
260 |
michael |
7610 |
AddUMode(client_p, UMODE_SSL); |
261 |
|
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sendto_one_notice(client_p, &me, ":*** Connected securely via %s", |
262 |
michael |
8339 |
tls_get_cipher(&client_p->connection->fd->ssl)); |
263 |
michael |
3272 |
} |
264 |
|
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|
265 |
michael |
7610 |
sendto_one_numeric(client_p, &me, RPL_WELCOME, ConfigServerInfo.network_name, |
266 |
michael |
8255 |
client_p->name, client_p->username, client_p->realhost); |
267 |
michael |
7610 |
sendto_one_numeric(client_p, &me, RPL_YOURHOST, |
268 |
|
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listener_get_name(client_p->connection->listener), ircd_version); |
269 |
|
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sendto_one_numeric(client_p, &me, RPL_CREATED, built_date); |
270 |
|
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sendto_one_numeric(client_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
271 |
michael |
6252 |
|
272 |
michael |
7610 |
isupport_show(client_p); |
273 |
|
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show_lusers(client_p); |
274 |
|
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motd_signon(client_p); |
275 |
michael |
3272 |
} |
276 |
|
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|
277 |
|
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/* check_xline() |
278 |
|
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* |
279 |
|
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* inputs - pointer to client to test |
280 |
|
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* outupt - 1 if exiting 0 if ok |
281 |
|
|
* side effects - |
282 |
|
|
*/ |
283 |
|
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static int |
284 |
michael |
7610 |
check_xline(struct Client *client_p) |
285 |
michael |
3272 |
{ |
286 |
michael |
7304 |
const struct GecosItem *gecos = NULL; |
287 |
michael |
3272 |
|
288 |
michael |
7610 |
if (HasFlag(client_p, FLAGS_EXEMPTXLINE)) |
289 |
michael |
5985 |
return 0; |
290 |
|
|
|
291 |
michael |
7610 |
if ((gecos = gecos_find(client_p->info, match))) |
292 |
michael |
3272 |
{ |
293 |
|
|
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
294 |
|
|
"X-line Rejecting [%s] [%s], user %s [%s]", |
295 |
michael |
7610 |
client_p->info, gecos->reason, |
296 |
michael |
7997 |
client_get_name(client_p, HIDE_IP), |
297 |
michael |
7610 |
client_p->sockhost); |
298 |
michael |
3272 |
|
299 |
|
|
++ServerStats.is_ref; |
300 |
michael |
7610 |
exit_client(client_p, "Bad user info"); |
301 |
michael |
3272 |
return 1; |
302 |
|
|
} |
303 |
|
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|
304 |
|
|
return 0; |
305 |
|
|
} |
306 |
|
|
|
307 |
michael |
3317 |
/*! \brief This function is called when both NICK and USER messages |
308 |
michael |
3316 |
* have been accepted for the client, in whatever order. Only |
309 |
|
|
* after this, is the UID message propagated. |
310 |
michael |
7610 |
* \param client_p Pointer to given client to introduce |
311 |
michael |
3316 |
*/ |
312 |
adx |
30 |
void |
313 |
michael |
7610 |
register_local_user(struct Client *client_p) |
314 |
adx |
30 |
{ |
315 |
michael |
1632 |
const struct MaskItem *conf = NULL; |
316 |
adx |
30 |
|
317 |
michael |
7610 |
assert(client_p == client_p->from); |
318 |
|
|
assert(MyConnect(client_p)); |
319 |
|
|
assert(IsUnknown(client_p)); |
320 |
|
|
assert(!client_p->connection->registration); |
321 |
adx |
30 |
|
322 |
michael |
4340 |
if (ConfigGeneral.ping_cookie) |
323 |
adx |
30 |
{ |
324 |
michael |
7610 |
if (!HasFlag(client_p, FLAGS_PINGSENT) && !client_p->connection->random_ping) |
325 |
adx |
30 |
{ |
326 |
michael |
983 |
do |
327 |
michael |
7610 |
client_p->connection->random_ping = genrand_int32(); |
328 |
michael |
8437 |
while (client_p->connection->random_ping == 0); |
329 |
michael |
983 |
|
330 |
michael |
7610 |
sendto_one(client_p, "PING :%u", client_p->connection->random_ping); |
331 |
|
|
AddFlag(client_p, FLAGS_PINGSENT); |
332 |
adx |
30 |
return; |
333 |
|
|
} |
334 |
|
|
|
335 |
michael |
7610 |
if (!HasFlag(client_p, FLAGS_PING_COOKIE)) |
336 |
adx |
30 |
return; |
337 |
|
|
} |
338 |
|
|
|
339 |
michael |
7610 |
client_p->connection->last_privmsg = CurrentTime; |
340 |
adx |
30 |
/* Straight up the maximum rate of flooding... */ |
341 |
michael |
7610 |
client_p->connection->allow_read = MAX_FLOOD_BURST; |
342 |
adx |
30 |
|
343 |
michael |
7610 |
if (!check_client(client_p)) |
344 |
adx |
30 |
return; |
345 |
|
|
|
346 |
michael |
7610 |
conf = client_p->connection->confs.head->data; |
347 |
adx |
30 |
|
348 |
michael |
7610 |
if (!HasFlag(client_p, FLAGS_GOTID)) |
349 |
adx |
30 |
{ |
350 |
michael |
3215 |
char username[USERLEN + 1] = ""; |
351 |
adx |
30 |
unsigned int i = 0; |
352 |
|
|
|
353 |
michael |
1632 |
if (IsNeedIdentd(conf)) |
354 |
adx |
30 |
{ |
355 |
michael |
896 |
++ServerStats.is_ref; |
356 |
michael |
7610 |
sendto_one_notice(client_p, &me, ":*** Notice -- You need to install " |
357 |
michael |
3110 |
"identd to use this server"); |
358 |
michael |
7610 |
exit_client(client_p, "Install identd"); |
359 |
adx |
30 |
return; |
360 |
|
|
} |
361 |
|
|
|
362 |
michael |
7610 |
strlcpy(username, client_p->username, sizeof(username)); |
363 |
adx |
30 |
|
364 |
michael |
1632 |
if (!IsNoTilde(conf)) |
365 |
michael |
7610 |
client_p->username[i++] = '~'; |
366 |
adx |
30 |
|
367 |
michael |
6357 |
for (const char *p = username; *p && i < USERLEN; ++p) |
368 |
michael |
7610 |
client_p->username[i++] = *p; |
369 |
adx |
30 |
|
370 |
michael |
7610 |
client_p->username[i] = '\0'; |
371 |
adx |
30 |
} |
372 |
|
|
|
373 |
michael |
3317 |
/* Password check */ |
374 |
michael |
1632 |
if (!EmptyString(conf->passwd)) |
375 |
adx |
30 |
{ |
376 |
michael |
7610 |
if (!match_conf_password(client_p->connection->password, conf)) |
377 |
adx |
30 |
{ |
378 |
michael |
896 |
++ServerStats.is_ref; |
379 |
michael |
3109 |
|
380 |
michael |
7610 |
sendto_one_numeric(client_p, &me, ERR_PASSWDMISMATCH); |
381 |
|
|
exit_client(client_p, "Bad Password"); |
382 |
adx |
30 |
return; |
383 |
|
|
} |
384 |
|
|
} |
385 |
|
|
|
386 |
michael |
3317 |
/* |
387 |
michael |
7610 |
* Don't free client_p->connection->password here - it can be required |
388 |
michael |
4724 |
* by masked /stats I if there are auth {} blocks with need_password = no; |
389 |
adx |
30 |
* --adx |
390 |
|
|
*/ |
391 |
|
|
|
392 |
michael |
3317 |
/* |
393 |
michael |
7610 |
* Report if user has &^>= etc. and set flags as needed in client_p |
394 |
michael |
3317 |
*/ |
395 |
michael |
7610 |
report_and_set_user_flags(client_p, conf); |
396 |
adx |
30 |
|
397 |
michael |
7610 |
if (IsDead(client_p)) |
398 |
michael |
980 |
return; |
399 |
|
|
|
400 |
michael |
3317 |
/* |
401 |
|
|
* Limit clients - |
402 |
adx |
30 |
* We want to be able to have servers and F-line clients |
403 |
|
|
* connect, so save room for "buffer" connections. |
404 |
|
|
* Smaller servers may want to decrease this, and it should |
405 |
|
|
* probably be just a percentage of the MAXCLIENTS... |
406 |
|
|
* -Taner |
407 |
|
|
*/ |
408 |
michael |
7969 |
if ((dlink_list_length(&local_client_list) >= GlobalSetOptions.maxclients + MAX_BUFFER) || |
409 |
|
|
(dlink_list_length(&local_client_list) >= GlobalSetOptions.maxclients && !HasFlag(client_p, FLAGS_NOLIMIT))) |
410 |
adx |
30 |
{ |
411 |
michael |
1618 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
412 |
adx |
30 |
"Too many clients, rejecting %s[%s].", |
413 |
michael |
7610 |
client_p->name, client_p->host); |
414 |
michael |
896 |
++ServerStats.is_ref; |
415 |
michael |
7610 |
exit_client(client_p, "Sorry, server is full - try later"); |
416 |
adx |
30 |
return; |
417 |
|
|
} |
418 |
|
|
|
419 |
michael |
7610 |
if (!valid_username(client_p->username, 1)) |
420 |
adx |
30 |
{ |
421 |
michael |
3375 |
char buf[IRCD_BUFSIZE] = ""; |
422 |
adx |
30 |
|
423 |
michael |
1618 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
424 |
|
|
"Invalid username: %s (%s@%s)", |
425 |
michael |
7610 |
client_p->name, client_p->username, client_p->host); |
426 |
michael |
896 |
++ServerStats.is_ref; |
427 |
michael |
7610 |
snprintf(buf, sizeof(buf), "Invalid username [%s]", client_p->username); |
428 |
|
|
exit_client(client_p, buf); |
429 |
adx |
30 |
return; |
430 |
|
|
} |
431 |
|
|
|
432 |
michael |
7610 |
if (check_xline(client_p)) |
433 |
adx |
30 |
return; |
434 |
|
|
|
435 |
michael |
7570 |
const char *id; |
436 |
michael |
3215 |
while (hash_find_id((id = uid_get()))) |
437 |
michael |
1115 |
; |
438 |
michael |
573 |
|
439 |
michael |
7610 |
strlcpy(client_p->id, id, sizeof(client_p->id)); |
440 |
|
|
hash_add_id(client_p); |
441 |
adx |
30 |
|
442 |
michael |
1618 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
443 |
michael |
1137 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
444 |
michael |
8223 |
client_p->name, client_p->username, client_p->realhost, |
445 |
michael |
7610 |
client_p->sockhost, |
446 |
|
|
get_client_class(&client_p->connection->confs), |
447 |
|
|
client_p->info, client_p->id); |
448 |
adx |
30 |
|
449 |
michael |
4340 |
if (ConfigGeneral.invisible_on_connect) |
450 |
michael |
159 |
{ |
451 |
michael |
7610 |
AddUMode(client_p, UMODE_INVISIBLE); |
452 |
michael |
980 |
++Count.invisi; |
453 |
michael |
159 |
} |
454 |
adx |
30 |
|
455 |
michael |
7610 |
assert(client_p->servptr == &me); |
456 |
|
|
SetClient(client_p); |
457 |
|
|
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
458 |
|
|
dlinkAdd(client_p, &client_p->node, &global_client_list); |
459 |
michael |
1080 |
|
460 |
michael |
7610 |
assert(dlinkFind(&unknown_list, client_p)); |
461 |
michael |
1013 |
|
462 |
michael |
7610 |
dlink_move_node(&client_p->connection->lclient_node, |
463 |
michael |
1126 |
&unknown_list, &local_client_list); |
464 |
adx |
30 |
|
465 |
michael |
7969 |
if (dlink_list_length(&local_client_list) > Count.max_loc) |
466 |
|
|
{ |
467 |
|
|
Count.max_loc = dlink_list_length(&local_client_list); |
468 |
|
|
|
469 |
|
|
if (!(Count.max_loc % 10)) |
470 |
|
|
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
471 |
|
|
"New maximum local client connections: %u", |
472 |
|
|
Count.max_loc); |
473 |
|
|
} |
474 |
|
|
|
475 |
michael |
8001 |
if ((dlink_list_length(&local_client_list) + |
476 |
|
|
dlink_list_length(&local_server_list)) > Count.max_loc_con) |
477 |
|
|
Count.max_loc_con = dlink_list_length(&local_client_list) + |
478 |
|
|
dlink_list_length(&local_server_list); |
479 |
|
|
|
480 |
michael |
7965 |
if (dlink_list_length(&global_client_list) > Count.max_tot) |
481 |
|
|
Count.max_tot = dlink_list_length(&global_client_list); |
482 |
|
|
++Count.totalrestartcount; |
483 |
|
|
|
484 |
michael |
7610 |
user_welcome(client_p); |
485 |
adx |
30 |
|
486 |
michael |
7610 |
introduce_client(client_p); |
487 |
adx |
30 |
} |
488 |
|
|
|
489 |
|
|
/* register_remote_user() |
490 |
|
|
* |
491 |
michael |
7610 |
* inputs - client_p remote or directly connected client |
492 |
adx |
30 |
* - username to register as |
493 |
|
|
* - host name to register as |
494 |
|
|
* - server name |
495 |
|
|
* output - NONE |
496 |
|
|
* side effects - This function is called when a remote client |
497 |
|
|
* is introduced by a server. |
498 |
|
|
*/ |
499 |
|
|
void |
500 |
michael |
7610 |
register_remote_user(struct Client *client_p) |
501 |
adx |
30 |
{ |
502 |
michael |
7630 |
assert(client_p->servptr->from == client_p->from); |
503 |
adx |
30 |
|
504 |
michael |
1167 |
/* |
505 |
|
|
* If the nick has been introduced by a services server, |
506 |
|
|
* make it a service as well. |
507 |
|
|
*/ |
508 |
michael |
7610 |
if (HasFlag(client_p->servptr, FLAGS_SERVICE)) |
509 |
|
|
AddFlag(client_p, FLAGS_SERVICE); |
510 |
michael |
1167 |
|
511 |
michael |
7610 |
SetClient(client_p); |
512 |
|
|
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
513 |
|
|
dlinkAdd(client_p, &client_p->node, &global_client_list); |
514 |
michael |
7965 |
|
515 |
|
|
if (dlink_list_length(&global_client_list) > Count.max_tot) |
516 |
|
|
Count.max_tot = dlink_list_length(&global_client_list); |
517 |
|
|
|
518 |
michael |
7610 |
if (HasFlag(client_p->servptr, FLAGS_EOB)) |
519 |
michael |
5743 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
520 |
|
|
"Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>", |
521 |
michael |
7610 |
client_p->servptr->name, |
522 |
michael |
8223 |
client_p->name, client_p->username, client_p->realhost, |
523 |
michael |
7610 |
client_p->sockhost, client_p->info, client_p->id); |
524 |
michael |
1976 |
|
525 |
michael |
7610 |
introduce_client(client_p); |
526 |
adx |
30 |
} |
527 |
|
|
|
528 |
|
|
/* valid_hostname() |
529 |
|
|
* |
530 |
|
|
* Inputs - pointer to hostname |
531 |
|
|
* Output - 1 if valid, 0 if not |
532 |
|
|
* Side effects - check hostname for validity |
533 |
|
|
* |
534 |
|
|
* NOTE: this doesn't allow a hostname to begin with a dot and |
535 |
|
|
* will not allow more dots than chars. |
536 |
|
|
*/ |
537 |
|
|
int |
538 |
|
|
valid_hostname(const char *hostname) |
539 |
|
|
{ |
540 |
|
|
const char *p = hostname; |
541 |
|
|
|
542 |
michael |
3235 |
assert(p); |
543 |
adx |
30 |
|
544 |
michael |
2352 |
if (EmptyString(p) || *p == '.' || *p == ':') |
545 |
michael |
56 |
return 0; |
546 |
adx |
30 |
|
547 |
michael |
1080 |
for (; *p; ++p) |
548 |
adx |
30 |
if (!IsHostChar(*p)) |
549 |
michael |
56 |
return 0; |
550 |
adx |
30 |
|
551 |
michael |
1795 |
return p - hostname <= HOSTLEN; |
552 |
adx |
30 |
} |
553 |
|
|
|
554 |
|
|
/* valid_username() |
555 |
|
|
* |
556 |
|
|
* Inputs - pointer to user |
557 |
|
|
* Output - 1 if valid, 0 if not |
558 |
|
|
* Side effects - check username for validity |
559 |
|
|
* |
560 |
|
|
* Absolutely always reject any '*' '!' '?' '@' in an user name |
561 |
|
|
* reject any odd control characters names. |
562 |
|
|
* Allow '.' in username to allow for "first.last" |
563 |
|
|
* style of username |
564 |
|
|
*/ |
565 |
|
|
int |
566 |
michael |
2069 |
valid_username(const char *username, const int local) |
567 |
adx |
30 |
{ |
568 |
|
|
const char *p = username; |
569 |
|
|
|
570 |
michael |
3235 |
assert(p); |
571 |
adx |
30 |
|
572 |
michael |
1080 |
if (*p == '~') |
573 |
adx |
30 |
++p; |
574 |
|
|
|
575 |
michael |
2067 |
/* |
576 |
|
|
* Reject usernames that don't start with an alphanum |
577 |
adx |
30 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
578 |
|
|
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
579 |
|
|
*/ |
580 |
|
|
if (!IsAlNum(*p)) |
581 |
michael |
56 |
return 0; |
582 |
adx |
30 |
|
583 |
michael |
2067 |
if (local) |
584 |
adx |
30 |
{ |
585 |
michael |
6756 |
unsigned int dots = 0; |
586 |
|
|
|
587 |
michael |
2067 |
while (*++p) |
588 |
adx |
30 |
{ |
589 |
michael |
4340 |
if (*p == '.' && ConfigGeneral.dots_in_ident) |
590 |
michael |
2067 |
{ |
591 |
michael |
4340 |
if (++dots > ConfigGeneral.dots_in_ident) |
592 |
michael |
2067 |
return 0; |
593 |
|
|
if (!IsUserChar(*(p + 1))) |
594 |
|
|
return 0; |
595 |
|
|
} |
596 |
|
|
else if (!IsUserChar(*p)) |
597 |
michael |
56 |
return 0; |
598 |
adx |
30 |
} |
599 |
|
|
} |
600 |
michael |
2067 |
else |
601 |
|
|
{ |
602 |
|
|
while (*++p) |
603 |
|
|
if (!IsUserChar(*p)) |
604 |
|
|
return 0; |
605 |
|
|
} |
606 |
adx |
30 |
|
607 |
michael |
3656 |
return p - username <= USERLEN; |
608 |
adx |
30 |
} |
609 |
|
|
|
610 |
michael |
1165 |
/* clean_nick_name() |
611 |
|
|
* |
612 |
|
|
* input - nickname |
613 |
|
|
* - whether it's a local nick (1) or remote (0) |
614 |
|
|
* output - none |
615 |
|
|
* side effects - walks through the nickname, returning 0 if erroneous |
616 |
|
|
*/ |
617 |
|
|
int |
618 |
|
|
valid_nickname(const char *nickname, const int local) |
619 |
|
|
{ |
620 |
|
|
const char *p = nickname; |
621 |
michael |
3318 |
|
622 |
michael |
4982 |
assert(p); |
623 |
michael |
1165 |
|
624 |
michael |
3317 |
/* |
625 |
|
|
* Nicks can't start with a digit or - or be 0 length. |
626 |
|
|
*/ |
627 |
michael |
4709 |
if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local)) |
628 |
michael |
1165 |
return 0; |
629 |
|
|
|
630 |
|
|
for (; *p; ++p) |
631 |
|
|
if (!IsNickChar(*p)) |
632 |
|
|
return 0; |
633 |
|
|
|
634 |
michael |
1431 |
return p - nickname <= NICKLEN; |
635 |
michael |
1165 |
} |
636 |
|
|
|
637 |
michael |
7599 |
/*! \brief Builds a mode change string to buffer pointed by \a buf |
638 |
|
|
* \param client_p Pointer to client |
639 |
michael |
7771 |
* \param dispatch Whether to send a MODE message to client_p |
640 |
michael |
7599 |
* \param old Old user mode to compare against when building new mode buffer |
641 |
|
|
* \param buf Pointer to buffer to build string in |
642 |
adx |
30 |
*/ |
643 |
|
|
void |
644 |
michael |
7771 |
send_umode(struct Client *client_p, unsigned int dispatch, |
645 |
michael |
7599 |
unsigned int old, char *buf) |
646 |
adx |
30 |
{ |
647 |
michael |
7599 |
char *m = buf; |
648 |
adx |
30 |
int what = 0; |
649 |
|
|
|
650 |
michael |
56 |
/* |
651 |
michael |
3317 |
* Build a string in umode_buf to represent the change in the user's |
652 |
michael |
7610 |
* mode between the new (client_p->umodes) and 'old'. |
653 |
adx |
30 |
*/ |
654 |
michael |
5392 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
655 |
adx |
30 |
{ |
656 |
michael |
7599 |
if ((tab->flag & old) && !HasUMode(client_p, tab->flag)) |
657 |
adx |
30 |
{ |
658 |
|
|
if (what == MODE_DEL) |
659 |
michael |
5392 |
*m++ = tab->c; |
660 |
adx |
30 |
else |
661 |
|
|
{ |
662 |
|
|
what = MODE_DEL; |
663 |
|
|
*m++ = '-'; |
664 |
michael |
5392 |
*m++ = tab->c; |
665 |
adx |
30 |
} |
666 |
|
|
} |
667 |
michael |
7599 |
else if (!(tab->flag & old) && HasUMode(client_p, tab->flag)) |
668 |
adx |
30 |
{ |
669 |
|
|
if (what == MODE_ADD) |
670 |
michael |
5392 |
*m++ = tab->c; |
671 |
adx |
30 |
else |
672 |
|
|
{ |
673 |
|
|
what = MODE_ADD; |
674 |
|
|
*m++ = '+'; |
675 |
michael |
5392 |
*m++ = tab->c; |
676 |
adx |
30 |
} |
677 |
|
|
} |
678 |
|
|
} |
679 |
|
|
|
680 |
|
|
*m = '\0'; |
681 |
|
|
|
682 |
michael |
7771 |
if (dispatch && *buf) |
683 |
michael |
528 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
684 |
michael |
4704 |
client_p->name, client_p->username, |
685 |
michael |
7599 |
client_p->host, client_p->name, buf); |
686 |
adx |
30 |
} |
687 |
|
|
|
688 |
|
|
/* send_umode_out() |
689 |
|
|
* |
690 |
|
|
* inputs - |
691 |
|
|
* output - NONE |
692 |
|
|
* side effects - Only send ubuf out to servers that know about this client |
693 |
|
|
*/ |
694 |
|
|
void |
695 |
michael |
7610 |
send_umode_out(struct Client *client_p, unsigned int old) |
696 |
adx |
30 |
{ |
697 |
michael |
8063 |
char buf[UMODE_MAX_STR] = ""; |
698 |
adx |
30 |
|
699 |
michael |
7610 |
send_umode(client_p, MyConnect(client_p), old, buf); |
700 |
adx |
30 |
|
701 |
michael |
573 |
if (buf[0]) |
702 |
michael |
7610 |
sendto_server(client_p, 0, 0, ":%s MODE %s :%s", |
703 |
|
|
client_p->id, client_p->id, buf); |
704 |
adx |
30 |
} |
705 |
|
|
|
706 |
michael |
1819 |
void |
707 |
michael |
8210 |
user_set_hostmask(struct Client *client_p, const char *hostname) |
708 |
michael |
1819 |
{ |
709 |
michael |
8059 |
dlink_node *node; |
710 |
michael |
2141 |
|
711 |
michael |
7610 |
if (!strcmp(client_p->host, hostname)) |
712 |
michael |
2145 |
return; |
713 |
michael |
2141 |
|
714 |
michael |
4340 |
if (ConfigGeneral.cycle_on_host_change) |
715 |
michael |
7610 |
sendto_common_channels_local(client_p, 0, 0, CAP_CHGHOST, ":%s!%s@%s QUIT :Changing hostname", |
716 |
|
|
client_p->name, client_p->username, client_p->host); |
717 |
michael |
2145 |
|
718 |
michael |
7610 |
sendto_common_channels_local(client_p, 0, CAP_CHGHOST, 0, ":%s!%s@%s CHGHOST %s %s", |
719 |
|
|
client_p->name, client_p->username, |
720 |
|
|
client_p->host, client_p->username, hostname); |
721 |
michael |
6774 |
|
722 |
michael |
7610 |
strlcpy(client_p->host, hostname, sizeof(client_p->host)); |
723 |
michael |
2145 |
|
724 |
michael |
7610 |
if (MyConnect(client_p)) |
725 |
michael |
2137 |
{ |
726 |
michael |
7610 |
sendto_one_numeric(client_p, &me, RPL_VISIBLEHOST, client_p->host); |
727 |
michael |
7764 |
clear_ban_cache_list(&client_p->channel); |
728 |
michael |
2137 |
} |
729 |
michael |
2141 |
|
730 |
michael |
4340 |
if (!ConfigGeneral.cycle_on_host_change) |
731 |
michael |
2283 |
return; |
732 |
|
|
|
733 |
michael |
7610 |
DLINK_FOREACH(node, client_p->channel.head) |
734 |
michael |
2141 |
{ |
735 |
michael |
6904 |
char modebuf[CMEMBER_STATUS_FLAGS_LEN + 1]; |
736 |
|
|
char nickbuf[CMEMBER_STATUS_FLAGS_LEN * NICKLEN + CMEMBER_STATUS_FLAGS_LEN] = ""; |
737 |
michael |
2141 |
char *p = modebuf; |
738 |
|
|
int len = 0; |
739 |
michael |
4815 |
const struct Membership *member = node->data; |
740 |
michael |
2141 |
|
741 |
michael |
4815 |
if (has_member_flags(member, CHFL_CHANOP)) |
742 |
michael |
2283 |
{ |
743 |
michael |
2141 |
*p++ = 'o'; |
744 |
michael |
7610 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
745 |
michael |
2141 |
} |
746 |
|
|
|
747 |
michael |
4815 |
if (has_member_flags(member, CHFL_HALFOP)) |
748 |
michael |
2283 |
{ |
749 |
michael |
2141 |
*p++ = 'h'; |
750 |
michael |
7610 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
751 |
michael |
2141 |
} |
752 |
|
|
|
753 |
michael |
4815 |
if (has_member_flags(member, CHFL_VOICE)) |
754 |
michael |
2283 |
{ |
755 |
michael |
2141 |
*p++ = 'v'; |
756 |
michael |
7610 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
757 |
michael |
2141 |
} |
758 |
|
|
|
759 |
|
|
*p = '\0'; |
760 |
|
|
|
761 |
michael |
7610 |
sendto_channel_local(client_p, member->chptr, 0, CAP_EXTENDED_JOIN, CAP_CHGHOST, ":%s!%s@%s JOIN %s %s :%s", |
762 |
|
|
client_p->name, client_p->username, |
763 |
|
|
client_p->host, member->chptr->name, |
764 |
|
|
client_p->account, client_p->info); |
765 |
|
|
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_EXTENDED_JOIN | CAP_CHGHOST, ":%s!%s@%s JOIN :%s", |
766 |
|
|
client_p->name, client_p->username, |
767 |
|
|
client_p->host, member->chptr->name); |
768 |
michael |
4792 |
|
769 |
michael |
2141 |
if (nickbuf[0]) |
770 |
michael |
7610 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_CHGHOST, ":%s MODE %s +%s %s", |
771 |
|
|
client_p->servptr->name, member->chptr->name, |
772 |
michael |
6759 |
modebuf, nickbuf); |
773 |
michael |
2141 |
} |
774 |
michael |
6777 |
|
775 |
michael |
7610 |
if (client_p->away[0]) |
776 |
|
|
sendto_common_channels_local(client_p, 0, CAP_AWAY_NOTIFY, CAP_CHGHOST, |
777 |
michael |
6777 |
":%s!%s@%s AWAY :%s", |
778 |
michael |
7610 |
client_p->name, client_p->username, |
779 |
|
|
client_p->host, client_p->away); |
780 |
michael |
1819 |
} |