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 1483 2006-05-27 18:58:12Z jilles $
  25  */
  26
  27 #include "stdinc.h"
  28 #include "client.h"
  29 #include "common.h"
  30 #include "match.h"
  31 #include "ircd.h"
  32 #include "numeric.h"
  33 #include "s_conf.h"
  34 #include "s_newconf.h"
  35 #include "logger.h"
  36 #include "s_user.h"
  37 #include "send.h"
  38 #include "msg.h"
  39 #include "parse.h"
  40 #include "modules.h"
  41 #include "packet.h"
  42 #include "cache.h"
  43
  44 static int m_oper(struct Client *, struct Client *, int, const char **);
  45
  46 struct Message oper_msgtab = {
  47         "OPER", 0, 0, 0, MFLG_SLOW,
  48         {mg_unreg, {m_oper, 3}, mg_ignore, mg_ignore, mg_ignore, {m_oper, 3}}
  49 };
  50
  51 mapi_clist_av1 oper_clist[] = { &oper_msgtab, NULL };
  52 DECLARE_MODULE_AV1(oper, NULL, NULL, oper_clist, NULL, NULL, "$Revision: 1483 $");
  53
  54 static int match_oper_password(const char *password, struct oper_conf *oper_p);
  55
  56 /*
  57  * m_oper
  58  *      parv[1] = oper name
  59  *      parv[2] = oper password
  60  */
  61 static int
  62 m_oper(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  63 {
  64         struct oper_conf *oper_p;
  65         const char *name;
  66         const char *password;
  67
  68         name = parv[1];
  69         password = parv[2];
  70
  71         if(IsOper(source_p))
  72         {
  73                 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
  74                 send_oper_motd(source_p);
  75                 return 0;
  76         }
  77
  78         /* end the grace period */
  79         if(!IsFloodDone(source_p))
  80                 flood_endgrace(source_p);
  81
  82         oper_p = find_oper_conf(source_p->username, source_p->orighost,
  83                                 source_p->sockhost, name);
  84
  85         if(oper_p == NULL)
  86         {
  87                 sendto_one(source_p, form_str(ERR_NOOPERHOST), me.name, source_p->name);
  88                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
  89                      name, source_p->name,
  90                      source_p->username, source_p->host, source_p->sockhost);
  91
  92                 if(ConfigFileEntry.failed_oper_notice)
  93                 {
  94                         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
  95                                              "Failed OPER attempt - host mismatch by %s (%s@%s)",
  96                                              source_p->name, source_p->username, source_p->host);
  97                 }
  98
  99                 return 0;
 100         }
 101
 102         if(IsOperConfNeedSSL(oper_p) && !IsSSLClient(source_p))
 103         {
 104                 sendto_one(source_p, form_str(ERR_NOOPERHOST), me.name, source_p->name);
 105                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s) -- requires SSL/TLS",
 106                      name, source_p->name,
 107                      source_p->username, source_p->host, source_p->sockhost);
 108
 109                 if(ConfigFileEntry.failed_oper_notice)
 110                 {
 111                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 112                                              "Failed OPER attempt - missing SSL/TLS by %s (%s@%s)",
 113                                              source_p->name, source_p->username, source_p->host);
 114                 }
 115                 return 0;
 116         }
 117
 118         if(match_oper_password(password, oper_p))
 119         {
 120                 oper_up(source_p, oper_p);
 121
 122                 ilog(L_OPERED, "OPER %s by %s!%s@%s (%s)",
 123                      name, source_p->name, source_p->username, source_p->host,
 124                      source_p->sockhost);
 125                 return 0;
 126         }
 127         else
 128         {
 129                 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
 130                            me.name, source_p->name);
 131
 132                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
 133                      name, source_p->name, source_p->username, source_p->host,
 134                      source_p->sockhost);
 135
 136                 if(ConfigFileEntry.failed_oper_notice)
 137                 {
 138                         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 139                                              "Failed OPER attempt by %s (%s@%s)",
 140                                              source_p->name, source_p->username, source_p->host);
 141                 }
 142         }
 143
 144         return 0;
 145 }
 146
 147 /*
 148  * match_oper_password
 149  *
 150  * inputs       - pointer to given password
 151  *              - pointer to Conf
 152  * output       - YES or NO if match
 153  * side effects - none
 154  */
 155 static int
 156 match_oper_password(const char *password, struct oper_conf *oper_p)
 157 {
 158         const char *encr;
 159
 160         /* passwd may be NULL pointer. Head it off at the pass... */
 161         if(EmptyString(oper_p->passwd))
 162                 return NO;
 163
 164         if(IsOperConfEncrypted(oper_p))
 165         {
 166                 /* use first two chars of the password they send in as salt */
 167                 /* If the password in the conf is MD5, and ircd is linked
 168                  * to scrypt on FreeBSD, or the standard crypt library on
 169                  * glibc Linux, then this code will work fine on generating
 170                  * the proper encrypted hash for comparison.
 171                  */
 172                 if(!EmptyString(password))
 173                         encr = rb_crypt(password, oper_p->passwd);
 174                 else
 175                         encr = "";
 176         }
 177         else
 178                 encr = password;
 179
 180         if(strcmp(encr, oper_p->passwd) == 0)
 181                 return YES;
 182         else
 183                 return NO;
 184 }