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