2 * IRC - Internet Relay Chat, ircd/client.c
3 * Copyright (C) 1990 Darren Reed
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 1, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 * @brief Implementation of functions for handling local clients.
28 #include "ircd_features.h"
29 #include "ircd_reply.h"
41 /** Find the shortest non-zero ping time attached to a client.
42 * If all attached ping times are zero, return the value for
44 * @param[in] acptr Client to find ping time for.
45 * @return Ping time in seconds.
47 int client_get_ping(const struct Client* acptr)
50 struct ConfItem* aconf;
53 assert(cli_verify(acptr));
55 for (link = cli_confs(acptr); link; link = link->next) {
56 aconf = link->value.aconf;
57 if (aconf->status & (CONF_CLIENT | CONF_SERVER)) {
58 int tmp = get_conf_ping(aconf);
59 if (0 < tmp && (ping > tmp || !ping))
64 ping = feature_int(FEAT_PINGFREQUENCY);
66 Debug((DEBUG_DEBUG, "Client %s Ping %d", cli_name(acptr), ping));
71 /** Find the default usermode for a client.
72 * @param[in] sptr Client to find default usermode for.
73 * @return Pointer to usermode string (or NULL, if there is no default).
75 const char* client_get_default_umode(const struct Client* sptr)
77 struct ConfItem* aconf;
80 assert(cli_verify(sptr));
82 for (link = cli_confs(sptr); link; link = link->next) {
83 aconf = link->value.aconf;
84 if ((aconf->status & CONF_CLIENT) && ConfUmode(aconf))
85 return ConfUmode(aconf);
90 /** Remove a connection from the list of connections with queued data.
91 * @param[in] con Connection with no queued data.
93 void client_drop_sendq(struct Connection* con)
95 if (con_prev_p(con)) { /* on the queued data list... */
97 con_prev_p(con_next(con)) = con_prev_p(con);
98 *(con_prev_p(con)) = con_next(con);
105 /** Add a connection to the list of connections with queued data.
106 * @param[in] con Connection with queued data.
107 * @param[in,out] con_p Previous pointer to next connection.
109 void client_add_sendq(struct Connection* con, struct Connection** con_p)
111 if (!con_prev_p(con)) { /* not on the queued data list yet... */
112 con_prev_p(con) = con_p;
113 con_next(con) = *con_p;
116 con_prev_p(*con_p) = &(con_next(con));
121 /** Default privilege set for global operators. */
122 static struct Privs privs_global;
123 /** Default privilege set for local operators. */
124 static struct Privs privs_local;
125 /** Non-zero if #privs_global and #privs_local have been initialized. */
126 static int privs_defaults_set;
128 /* client_set_privs(struct Client* client)
130 * Sets the privileges for opers.
132 /** Set the privileges for a client.
133 * @param[in] client Client who has become an operator.
134 * @param[in] oper Configuration item describing oper's privileges.
137 client_set_privs(struct Client *client, struct ConfItem *oper)
139 struct Privs *source, *defaults;
142 if (!privs_defaults_set)
144 memset(&privs_global, -1, sizeof(privs_global));
145 memset(&privs_local, 0, sizeof(privs_local));
146 FlagSet(&privs_local, PRIV_CHAN_LIMIT);
147 FlagSet(&privs_local, PRIV_MODE_LCHAN);
148 FlagSet(&privs_local, PRIV_SHOW_INVIS);
149 FlagSet(&privs_local, PRIV_SHOW_ALL_INVIS);
150 FlagSet(&privs_local, PRIV_LOCAL_KILL);
151 FlagSet(&privs_local, PRIV_REHASH);
152 FlagSet(&privs_local, PRIV_LOCAL_GLINE);
153 FlagSet(&privs_local, PRIV_LOCAL_JUPE);
154 FlagSet(&privs_local, PRIV_LOCAL_OPMODE);
155 FlagSet(&privs_local, PRIV_WHOX);
156 FlagSet(&privs_local, PRIV_DISPLAY);
157 FlagSet(&privs_local, PRIV_FORCE_LOCAL_OPMODE);
158 privs_defaults_set = 1;
160 memset(&(cli_privs(client)), 0, sizeof(struct Privs));
162 if (!IsAnOper(client))
164 else if (!MyConnect(client))
166 memset(&(cli_privs(client)), 255, sizeof(struct Privs));
167 FlagClr(&(cli_privs(client)), PRIV_SET);
170 else if (oper == NULL)
173 /* Clear out client's privileges. */
174 memset(&cli_privs(client), 0, sizeof(struct Privs));
176 /* Decide whether to use global or local oper defaults. */
177 if (FlagHas(&oper->privs_dirty, PRIV_PROPAGATE))
178 defaults = FlagHas(&oper->privs, PRIV_PROPAGATE) ? &privs_global : &privs_local;
179 else if (FlagHas(&oper->conn_class->privs_dirty, PRIV_PROPAGATE))
180 defaults = FlagHas(&oper->conn_class->privs, PRIV_PROPAGATE) ? &privs_global : &privs_local;
182 assert(0 && "Oper has no propagation and neither does connection class");
186 /* For each feature, figure out whether it comes from the operator
187 * conf, the connection class conf, or the defaults, then apply it.
189 for (priv = 0; priv < PRIV_LAST_PRIV; ++priv)
191 /* Figure out most applicable definition for the privilege. */
192 if (FlagHas(&oper->privs_dirty, priv))
193 source = &oper->privs;
194 else if (FlagHas(&oper->conn_class->privs_dirty, priv))
195 source = &oper->conn_class->privs;
199 /* Set it if necessary (privileges were already cleared). */
200 if (FlagHas(source, priv))
201 FlagSet(&cli_privs(client), priv);
204 /* This should be handled in the config, but lets be sure... */
205 if (FlagHas(&cli_privs(client), PRIV_PROPAGATE))
207 /* force propagating opers to display */
208 FlagSet(&cli_privs(client), PRIV_DISPLAY);
212 /* if they don't propagate oper status, prevent desyncs */
213 FlagClr(&cli_privs(client), PRIV_KILL);
214 FlagClr(&cli_privs(client), PRIV_GLINE);
215 FlagClr(&cli_privs(client), PRIV_JUPE);
216 FlagClr(&cli_privs(client), PRIV_OPMODE);
217 FlagClr(&cli_privs(client), PRIV_BADCHAN);
221 /** Array mapping privilege values to names and vice versa. */
223 char *name; /**< Name of privilege. */
224 unsigned int priv; /**< Enumeration value of privilege */
226 /** Helper macro to define an array entry for a privilege. */
227 #define P(priv) { #priv, PRIV_ ## priv }
228 P(CHAN_LIMIT), P(MODE_LCHAN), P(WALK_LCHAN), P(DEOP_LCHAN),
229 P(SHOW_INVIS), P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
230 P(LOCAL_KILL), P(REHASH), P(RESTART), P(DIE),
231 P(GLINE), P(LOCAL_GLINE), P(JUPE), P(LOCAL_JUPE),
232 P(OPMODE), P(LOCAL_OPMODE), P(SET), P(WHOX),
233 P(BADCHAN), P(LOCAL_BADCHAN), P(SEE_CHAN), P(PROPAGATE),
234 P(DISPLAY), P(SEE_OPERS), P(FORCE_OPMODE), P(FORCE_LOCAL_OPMODE),
240 /** Report privileges of \a client to \a to.
241 * @param[in] to Client requesting privilege list.
242 * @param[in] client Client whos privileges should be listed.
246 client_report_privs(struct Client *to, struct Client *client)
252 mb = msgq_make(to, rpl_str(RPL_PRIVS), cli_name(&me), cli_name(to),
255 for (i = 0; privtab[i].name; i++)
256 if (HasPriv(client, privtab[i].priv))
257 msgq_append(0, mb, "%s%s", found1++ ? " " : "", privtab[i].name);
259 send_buffer(to, mb, 0); /* send response */