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"
30 #include "ircd_reply.h"
39 /* #include <assert.h> -- Now using assert in ircd_log.h */
42 /** Find the shortest non-zero ping time attached to a client.
43 * If all attached ping times are zero, return the value for
45 * @param[in] acptr Client to find ping time for.
46 * @return Ping time in seconds.
48 int client_get_ping(const struct Client* acptr)
51 struct ConfItem* aconf;
54 assert(cli_verify(acptr));
56 for (link = cli_confs(acptr); link; link = link->next) {
57 aconf = link->value.aconf;
58 if (aconf->status & (CONF_CLIENT | CONF_SERVER)) {
59 int tmp = get_conf_ping(aconf);
60 if (0 < tmp && (ping > tmp || !ping))
65 ping = feature_int(FEAT_PINGFREQUENCY);
67 Debug((DEBUG_DEBUG, "Client %s Ping %d", cli_name(acptr), ping));
72 /** Find the default usermode for a client.
73 * @param[in] sptr Client to find default usermode for.
74 * @return Pointer to usermode string (or NULL, if there is no default).
76 const char* client_get_default_umode(const struct Client* sptr)
78 struct ConfItem* aconf;
81 assert(cli_verify(sptr));
83 for (link = cli_confs(sptr); link; link = link->next) {
84 aconf = link->value.aconf;
85 if ((aconf->status & CONF_CLIENT) && ConfUmode(aconf))
86 return ConfUmode(aconf);
91 /** Remove a connection from the list of connections with queued data.
92 * @param[in] con Connection with no queued data.
94 void client_drop_sendq(struct Connection* con)
96 if (con_prev_p(con)) { /* on the queued data list... */
98 con_prev_p(con_next(con)) = con_prev_p(con);
99 *(con_prev_p(con)) = con_next(con);
106 /** Add a connection to the list of connections with queued data.
107 * @param[in] con Connection with queued data.
108 * @param[in,out] con_p Previous pointer to next connection.
110 void client_add_sendq(struct Connection* con, struct Connection** con_p)
112 if (!con_prev_p(con)) { /* not on the queued data list yet... */
113 con_prev_p(con) = con_p;
114 con_next(con) = *con_p;
117 con_prev_p(*con_p) = &(con_next(con));
122 /** Default privilege set for global operators. */
123 static struct Privs privs_global;
124 /** Default privilege set for local operators. */
125 static struct Privs privs_local;
126 /** Non-zero if #privs_global and #privs_local have been initialized. */
127 static int privs_defaults_set;
129 /* client_set_privs(struct Client* client)
131 * Sets the privileges for opers.
133 /** Set the privileges for a client.
134 * @param[in] client Client who has become an operator.
135 * @param[in] oper Configuration item describing oper's privileges.
138 client_set_privs(struct Client *client, struct ConfItem *oper)
140 struct Privs *source, *defaults;
143 if (!privs_defaults_set)
145 memset(&privs_global, -1, sizeof(privs_global));
146 memset(&privs_local, 0, sizeof(privs_local));
147 FlagSet(&privs_local, PRIV_CHAN_LIMIT);
148 FlagSet(&privs_local, PRIV_MODE_LCHAN);
149 FlagSet(&privs_local, PRIV_SHOW_INVIS);
150 FlagSet(&privs_local, PRIV_SHOW_ALL_INVIS);
151 FlagSet(&privs_local, PRIV_LOCAL_KILL);
152 FlagSet(&privs_local, PRIV_REHASH);
153 FlagSet(&privs_local, PRIV_LOCAL_GLINE);
154 FlagSet(&privs_local, PRIV_LOCAL_JUPE);
155 FlagSet(&privs_local, PRIV_LOCAL_OPMODE);
156 FlagSet(&privs_local, PRIV_WHOX);
157 FlagSet(&privs_local, PRIV_DISPLAY);
158 FlagSet(&privs_local, PRIV_FORCE_LOCAL_OPMODE);
159 privs_defaults_set = 1;
161 memset(&(cli_privs(client)), 0, sizeof(struct Privs));
163 if (!IsAnOper(client))
165 else if (!MyConnect(client))
167 memset(&(cli_privs(client)), 255, sizeof(struct Privs));
168 FlagClr(&(cli_privs(client)), PRIV_SET);
171 else if (oper == NULL)
174 /* Clear out client's privileges. */
175 memset(&cli_privs(client), 0, sizeof(struct Privs));
177 /* Decide whether to use global or local oper defaults. */
178 if (FlagHas(&oper->privs_dirty, PRIV_PROPAGATE))
179 defaults = FlagHas(&oper->privs, PRIV_PROPAGATE) ? &privs_global : &privs_local;
180 else if (FlagHas(&oper->conn_class->privs_dirty, PRIV_PROPAGATE))
181 defaults = FlagHas(&oper->conn_class->privs, PRIV_PROPAGATE) ? &privs_global : &privs_local;
183 assert(0 && "Oper has no propagation and neither does connection class");
187 /* For each feature, figure out whether it comes from the operator
188 * conf, the connection class conf, or the defaults, then apply it.
190 for (priv = 0; priv < PRIV_LAST_PRIV; ++priv)
192 /* Figure out most applicable definition for the privilege. */
193 if (FlagHas(&oper->privs_dirty, priv))
194 source = &oper->privs;
195 else if (FlagHas(&oper->conn_class->privs_dirty, priv))
196 source = &oper->conn_class->privs;
200 /* Set it if necessary (privileges were already cleared). */
201 if (FlagHas(source, priv))
202 FlagSet(&cli_privs(client), priv);
205 /* This should be handled in the config, but lets be sure... */
206 if (FlagHas(&cli_privs(client), PRIV_PROPAGATE))
208 /* force propagating opers to display */
209 FlagSet(&cli_privs(client), PRIV_DISPLAY);
213 /* if they don't propagate oper status, prevent desyncs */
214 FlagClr(&cli_privs(client), PRIV_KILL);
215 FlagClr(&cli_privs(client), PRIV_GLINE);
216 FlagClr(&cli_privs(client), PRIV_JUPE);
217 FlagClr(&cli_privs(client), PRIV_OPMODE);
218 FlagClr(&cli_privs(client), PRIV_BADCHAN);
222 /** Array mapping privilege values to names and vice versa. */
224 char *name; /**< Name of privilege. */
225 unsigned int priv; /**< Enumeration value of privilege */
227 /** Helper macro to define an array entry for a privilege. */
228 #define P(priv) { #priv, PRIV_ ## priv }
229 P(CHAN_LIMIT), P(MODE_LCHAN), P(WALK_LCHAN), P(DEOP_LCHAN),
230 P(SHOW_INVIS), P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
231 P(LOCAL_KILL), P(REHASH), P(RESTART), P(DIE),
232 P(GLINE), P(LOCAL_GLINE), P(JUPE), P(LOCAL_JUPE),
233 P(OPMODE), P(LOCAL_OPMODE), P(SET), P(WHOX),
234 P(BADCHAN), P(LOCAL_BADCHAN), P(SEE_CHAN), P(PROPAGATE),
235 P(DISPLAY), P(SEE_OPERS), P(FORCE_OPMODE), P(FORCE_LOCAL_OPMODE),
241 /** Report privileges of \a client to \a to.
242 * @param[in] to Client requesting privilege list.
243 * @param[in] client Client whos privileges should be listed.
247 client_report_privs(struct Client *to, struct Client *client)
253 mb = msgq_make(to, rpl_str(RPL_PRIVS), cli_name(&me), cli_name(to),
256 for (i = 0; privtab[i].name; i++)
257 if (HasPriv(client, privtab[i].priv))
258 msgq_append(0, mb, "%s%s", found1++ ? " " : "", privtab[i].name);
260 send_buffer(to, mb, 0); /* send response */