modules/m_oper.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_oper.c: Makes a user an IRC Operator.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   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 2 of the License, or
  12  *  (at your option) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  *
  24  *  $Id: m_oper.c 148 2006-11-13 13:08:18Z spb $
  25  */
  26
  27 #include "stdinc.h"
  28 #include "tools.h"
  29 #include "client.h"
  30 #include "common.h"
  31 #include "irc_string.h"
  32 #include "ircd.h"
  33 #include "numeric.h"
  34 #include "commio.h"
  35 #include "s_conf.h"
  36 #include "s_newconf.h"
  37 #include "s_log.h"
  38 #include "s_user.h"
  39 #include "send.h"
  40 #include "msg.h"
  41 #include "parse.h"
  42 #include "modules.h"
  43 #include "packet.h"
  44 #include "cache.h"
  45 #include "hash.h"
  46
  47 static int m_oper(struct Client *, struct Client *, int, const char **);
  48 static int me_oper(struct Client *, struct Client *, int, const char **);
  49
  50 struct Message oper_msgtab = {
  51         "OPER", 0, 0, 0, MFLG_SLOW,
  52         {mg_unreg, {m_oper, 3}, mg_ignore, mg_ignore, {me_oper, 2}, {m_oper, 3}}
  53 };
  54
  55 mapi_clist_av1 oper_clist[] = { &oper_msgtab, NULL };
  56 DECLARE_MODULE_AV1(oper, NULL, NULL, oper_clist, NULL, NULL, "$Revision: 148 $");
  57
  58 static int match_oper_password(const char *password, struct oper_conf *oper_p);
  59 extern char *crypt();
  60
  61 /*
  62  * m_oper
  63  *      parv[0] = sender prefix
  64  *      parv[1] = oper name
  65  *      parv[2] = oper password
  66  */
  67 static int
  68 m_oper(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  69 {
  70         struct oper_conf *oper_p;
  71         const char *name;
  72         const char *password;
  73
  74         name = parv[1];
  75         password = parv[2];
  76
  77         if(IsOper(source_p))
  78         {
  79                 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
  80                 send_oper_motd(source_p);
  81                 return 0;
  82         }
  83
  84         /* end the grace period */
  85         if(!IsFloodDone(source_p))
  86                 flood_endgrace(source_p);
  87
  88         oper_p = find_oper_conf(source_p->username, source_p->orighost,
  89                                 source_p->sockhost, name);
  90
  91         if(oper_p == NULL)
  92         {
  93                 sendto_one(source_p, form_str(ERR_NOOPERHOST), me.name, source_p->name);
  94                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
  95                      name, source_p->name,
  96                      source_p->username, source_p->host, source_p->sockhost);
  97
  98                 if(ConfigFileEntry.failed_oper_notice)
  99                 {
 100                         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 101                                              "Failed OPER attempt - host mismatch by %s (%s@%s)",
 102                                              source_p->name, source_p->username, source_p->host);
 103                 }
 104
 105                 return 0;
 106         }
 107
 108         if(match_oper_password(password, oper_p))
 109         {
 110                 oper_up(source_p, oper_p);
 111
 112                 ilog(L_OPERED, "OPER %s by %s!%s@%s (%s)",
 113                      name, source_p->name, source_p->username, source_p->host,
 114                      source_p->sockhost);
 115                 return 0;
 116         }
 117         else
 118         {
 119                 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
 120                            me.name, source_p->name);
 121
 122                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
 123                      name, source_p->name, source_p->username, source_p->host,
 124                      source_p->sockhost);
 125
 126                 if(ConfigFileEntry.failed_oper_notice)
 127                 {
 128                         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 129                                              "Failed OPER attempt by %s (%s@%s)",
 130                                              source_p->name, source_p->username, source_p->host);
 131                 }
 132         }
 133
 134         return 0;
 135 }
 136
 137 /*
 138  * me_oper()
 139  *
 140  *   parv[0] = user
 141  *   parv[1] = operflags
 142  *
 143  * XXX - we could probably optimize this somehow --nenolod
 144  */
 145 static int
 146 me_oper(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 147 {
 148         struct Client *target_p;
 149         const char *p;
 150
 151         if ((target_p = find_client(parv[0])) == NULL)
 152                 return -1;
 153
 154         /* make sure we start out with a clean slate */
 155         target_p->operflags = 0;
 156
 157         for (p = parv[1]; *p != '\0'; p++)
 158         {
 159                 int i;
 160
 161                 for (i = 0; oper_flagtable[i].flag; i++)
 162                 {
 163                         if (*p == oper_flagtable[i].has)
 164                                 target_p->operflags |= oper_flagtable[i].flag;
 165                         else if (*p == oper_flagtable[i].hasnt)
 166                                 target_p->operflags &= ~oper_flagtable[i].flag;
 167                 }
 168         }
 169
 170         return 0;
 171 }
 172
 173 /*
 174  * match_oper_password
 175  *
 176  * inputs       - pointer to given password
 177  *              - pointer to Conf
 178  * output       - YES or NO if match
 179  * side effects - none
 180  */
 181 static int
 182 match_oper_password(const char *password, struct oper_conf *oper_p)
 183 {
 184         const char *encr;
 185
 186         /* passwd may be NULL pointer. Head it off at the pass... */
 187         if(EmptyString(oper_p->passwd))
 188                 return NO;
 189
 190         if(IsOperConfEncrypted(oper_p))
 191         {
 192                 /* use first two chars of the password they send in as salt */
 193                 /* If the password in the conf is MD5, and ircd is linked
 194                  * to scrypt on FreeBSD, or the standard crypt library on
 195                  * glibc Linux, then this code will work fine on generating
 196                  * the proper encrypted hash for comparison.
 197                  */
 198                 if(!EmptyString(password))
 199                         encr = crypt(password, oper_p->passwd);
 200                 else
 201                         encr = "";
 202         }
 203         else
 204                 encr = password;
 205
 206         if(strcmp(encr, oper_p->passwd) == 0)
 207                 return YES;
 208         else
 209                 return NO;
 210 }