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189935b1 | 1 | /* |
2 | * IRC - Internet Relay Chat, ircd/m_oper.c | |
3 | * Copyright (C) 1990 Jarkko Oikarinen and | |
4 | * University of Oulu, Computing Center | |
5 | * | |
6 | * See file AUTHORS in IRC package for additional names of | |
7 | * the programmers. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 1, or (at your option) | |
12 | * any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
23 | * $Id: m_oper.c,v 1.25 2005/03/19 22:52:33 entrope Exp $ | |
24 | */ | |
25 | ||
26 | /* | |
27 | * m_functions execute protocol messages on this server: | |
28 | * | |
29 | * cptr is always NON-NULL, pointing to a *LOCAL* client | |
30 | * structure (with an open socket connected!). This | |
31 | * identifies the physical socket where the message | |
32 | * originated (or which caused the m_function to be | |
33 | * executed--some m_functions may call others...). | |
34 | * | |
35 | * sptr is the source of the message, defined by the | |
36 | * prefix part of the message if present. If not | |
37 | * or prefix not found, then sptr==cptr. | |
38 | * | |
39 | * (!IsServer(cptr)) => (cptr == sptr), because | |
40 | * prefixes are taken *only* from servers... | |
41 | * | |
42 | * (IsServer(cptr)) | |
43 | * (sptr == cptr) => the message didn't | |
44 | * have the prefix. | |
45 | * | |
46 | * (sptr != cptr && IsServer(sptr) means | |
47 | * the prefix specified servername. (?) | |
48 | * | |
49 | * (sptr != cptr && !IsServer(sptr) means | |
50 | * that message originated from a remote | |
51 | * user (not local). | |
52 | * | |
53 | * combining | |
54 | * | |
55 | * (!IsServer(sptr)) means that, sptr can safely | |
56 | * taken as defining the target structure of the | |
57 | * message in this server. | |
58 | * | |
59 | * *Always* true (if 'parse' and others are working correct): | |
60 | * | |
61 | * 1) sptr->from == cptr (note: cptr->from == cptr) | |
62 | * | |
63 | * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr | |
64 | * *cannot* be a local connection, unless it's | |
65 | * actually cptr!). [MyConnect(x) should probably | |
66 | * be defined as (x == x->from) --msa ] | |
67 | * | |
68 | * parc number of variable parameter strings (if zero, | |
69 | * parv is allowed to be NULL) | |
70 | * | |
71 | * parv a NULL terminated list of parameter pointers, | |
72 | * | |
73 | * parv[0], sender (prefix string), if not present | |
74 | * this points to an empty string. | |
75 | * parv[1]...parv[parc-1] | |
76 | * pointers to additional parameters | |
77 | * parv[parc] == NULL, *always* | |
78 | * | |
79 | * note: it is guaranteed that parv[0]..parv[parc-1] are all | |
80 | * non-NULL pointers. | |
81 | */ | |
82 | #include "config.h" | |
83 | ||
84 | #include "client.h" | |
85 | #include "hash.h" | |
86 | #include "ircd.h" | |
87 | #include "ircd_alloc.h" | |
88 | #include "ircd_features.h" | |
89 | #include "ircd_log.h" | |
90 | #include "ircd_reply.h" | |
91 | #include "ircd_string.h" | |
92 | #include "ircd_crypt.h" | |
93 | #include "msg.h" | |
94 | #include "numeric.h" | |
95 | #include "numnicks.h" | |
96 | #include "querycmds.h" | |
97 | #include "s_conf.h" | |
98 | #include "s_debug.h" | |
99 | #include "s_user.h" | |
100 | #include "s_misc.h" | |
101 | #include "send.h" | |
102 | ||
103 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
104 | #include <stdlib.h> | |
105 | #include <string.h> | |
106 | ||
107 | int oper_password_match(const char* to_match, const char* passwd) | |
108 | { | |
109 | char *crypted; | |
110 | int res; | |
111 | /* | |
112 | * use first two chars of the password they send in as salt | |
113 | * | |
114 | * passwd may be NULL. Head it off at the pass... | |
115 | */ | |
116 | if (!to_match || !passwd) | |
117 | return 0; | |
118 | ||
119 | /* we no longer do a CRYPT_OPER_PASSWORD check because a clear | |
120 | text passwords just handled by a fallback mechanism called | |
121 | crypt_clear if it's enabled -- hikari */ | |
122 | crypted = ircd_crypt(to_match, passwd); | |
123 | ||
124 | if (!crypted) | |
125 | return 0; | |
126 | res = strcmp(crypted, passwd); | |
127 | MyFree(crypted); | |
128 | return 0 == res; | |
129 | } | |
130 | ||
131 | /* | |
132 | * m_oper - generic message handler | |
133 | */ | |
134 | int m_oper(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
135 | { | |
136 | struct ConfItem* aconf; | |
137 | char* name; | |
138 | char* password; | |
139 | ||
140 | assert(0 != cptr); | |
141 | assert(cptr == sptr); | |
142 | ||
143 | name = parc > 1 ? parv[1] : 0; | |
144 | password = parc > 2 ? parv[2] : 0; | |
145 | ||
146 | if (EmptyString(name) || EmptyString(password)) | |
147 | return need_more_params(sptr, "OPER"); | |
148 | ||
149 | aconf = find_conf_exact(name, sptr, CONF_OPERATOR); | |
150 | if (!aconf || IsIllegal(aconf)) | |
151 | { | |
152 | send_reply(sptr, ERR_NOOPERHOST); | |
153 | sendto_opmask_butone(0, SNO_OLDREALOP, "Failed OPER attempt by %s (%s@%s)", | |
d8e74551 | 154 | parv[0], cli_user(sptr)->realusername, cli_sockhost(sptr)); |
189935b1 | 155 | return 0; |
156 | } | |
157 | assert(0 != (aconf->status & CONF_OPERATOR)); | |
158 | ||
159 | if (oper_password_match(password, aconf->passwd)) | |
160 | { | |
161 | struct Flags old_mode = cli_flags(sptr); | |
162 | ||
163 | if (ACR_OK != attach_conf(sptr, aconf)) { | |
164 | send_reply(sptr, ERR_NOOPERHOST); | |
165 | sendto_opmask_butone(0, SNO_OLDREALOP, "Failed OPER attempt by %s " | |
d8e74551 | 166 | "(%s@%s)", parv[0], cli_user(sptr)->realusername, |
189935b1 | 167 | cli_sockhost(sptr)); |
168 | return 0; | |
169 | } | |
170 | SetLocOp(sptr); | |
171 | client_set_privs(sptr, aconf); | |
172 | if (HasPriv(sptr, PRIV_PROPAGATE)) | |
173 | { | |
174 | ClearLocOp(sptr); | |
175 | SetOper(sptr); | |
176 | ++UserStats.opers; | |
177 | } | |
178 | cli_handler(cptr) = OPER_HANDLER; | |
179 | ||
180 | SetFlag(sptr, FLAG_WALLOP); | |
181 | SetFlag(sptr, FLAG_SERVNOTICE); | |
182 | SetFlag(sptr, FLAG_DEBUG); | |
183 | ||
184 | set_snomask(sptr, SNO_OPERDEFAULT, SNO_ADD); | |
185 | cli_max_sendq(sptr) = 0; /* Get the sendq from the oper's class */ | |
186 | send_umode_out(cptr, sptr, &old_mode, HasPriv(sptr, PRIV_PROPAGATE)); | |
187 | send_reply(sptr, RPL_YOUREOPER); | |
188 | ||
189 | sendto_opmask_butone(0, SNO_OLDSNO, "%s (%s@%s) is now operator (%c)", | |
d8e74551 | 190 | parv[0], cli_user(sptr)->realusername, cli_sockhost(sptr), |
189935b1 | 191 | IsOper(sptr) ? 'O' : 'o'); |
192 | ||
d8e74551 | 193 | log_write(LS_OPER, L_INFO, 0, "OPER (%s) by (%#R)", name, sptr); |
189935b1 | 194 | } |
195 | else | |
196 | { | |
197 | send_reply(sptr, ERR_PASSWDMISMATCH); | |
198 | sendto_opmask_butone(0, SNO_OLDREALOP, "Failed OPER attempt by %s (%s@%s)", | |
d8e74551 | 199 | parv[0], cli_user(sptr)->realusername, cli_sockhost(sptr)); |
189935b1 | 200 | } |
201 | return 0; | |
202 | } | |
203 | ||
204 | /* | |
205 | * ms_oper - server message handler | |
206 | */ | |
207 | int ms_oper(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
208 | { | |
209 | assert(0 != cptr); | |
210 | assert(IsServer(cptr)); | |
211 | /* | |
212 | * if message arrived from server, trust it, and set to oper | |
213 | */ | |
214 | if (!IsServer(sptr) && !IsOper(sptr)) | |
215 | { | |
216 | ++UserStats.opers; | |
217 | SetFlag(sptr, FLAG_OPER); | |
218 | sendcmdto_serv_butone(sptr, CMD_MODE, cptr, "%s :+o", parv[0]); | |
219 | } | |
220 | return 0; | |
221 | } | |
222 | ||
223 | /* | |
224 | * mo_oper - oper message handler | |
225 | */ | |
226 | int mo_oper(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
227 | { | |
228 | assert(0 != cptr); | |
229 | assert(cptr == sptr); | |
230 | send_reply(sptr, RPL_YOUREOPER); | |
231 | return 0; | |
232 | } |