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 "client.h"
  27 #include "common.h"
  28 #include "match.h"
  29 #include "ircd.h"
  30 #include "numeric.h"
  31 #include "s_conf.h"
  32 #include "s_newconf.h"
  33 #include "logger.h"
  34 #include "s_user.h"
  35 #include "send.h"
  36 #include "msg.h"
  37 #include "parse.h"
  38 #include "modules.h"
  39 #include "packet.h"
  40 #include "cache.h"
  41
  42 static int m_oper(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
  43
  44 struct Message oper_msgtab = {
  45         "OPER", 0, 0, 0, 0,
  46         {mg_unreg, {m_oper, 3}, mg_ignore, mg_ignore, mg_ignore, {m_oper, 3}}
  47 };
  48
  49 mapi_clist_av1 oper_clist[] = { &oper_msgtab, NULL };
  50 DECLARE_MODULE_AV1(oper, NULL, NULL, oper_clist, NULL, NULL, "$Revision: 1483 $");
  51
  52 static int match_oper_password(const char *password, struct oper_conf *oper_p);
  53
  54 /*
  55  * m_oper
  56  *      parv[1] = oper name
  57  *      parv[2] = oper password
  58  */
  59 static int
  60 m_oper(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  61 {
  62         struct oper_conf *oper_p;
  63         const char *name;
  64         const char *password;
  65
  66         name = parv[1];
  67         password = parv[2];
  68
  69         if(IsOper(source_p))
  70         {
  71                 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
  72                 send_oper_motd(source_p);
  73                 return 0;
  74         }
  75
  76         /* end the grace period */
  77         if(!IsFloodDone(source_p))
  78                 flood_endgrace(source_p);
  79
  80         oper_p = find_oper_conf(source_p->username, source_p->orighost,
  81                                 source_p->sockhost, name);
  82
  83         if(oper_p == NULL)
  84         {
  85                 sendto_one_numeric(source_p, ERR_NOOPERHOST, form_str(ERR_NOOPERHOST));
  86                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
  87                      name, source_p->name,
  88                      source_p->username, source_p->host, source_p->sockhost);
  89
  90                 if(ConfigFileEntry.failed_oper_notice)
  91                 {
  92                         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
  93                                              "Failed OPER attempt - host mismatch by %s (%s@%s)",
  94                                              source_p->name, source_p->username, source_p->host);
  95                 }
  96
  97                 return 0;
  98         }
  99
 100         if(IsOperConfNeedSSL(oper_p) && !IsSSLClient(source_p))
 101         {
 102                 sendto_one_numeric(source_p, ERR_NOOPERHOST, form_str(ERR_NOOPERHOST));
 103                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s) -- requires SSL/TLS",
 104                      name, source_p->name,
 105                      source_p->username, source_p->host, source_p->sockhost);
 106
 107                 if(ConfigFileEntry.failed_oper_notice)
 108                 {
 109                         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 110                                              "Failed OPER attempt - missing SSL/TLS by %s (%s@%s)",
 111                                              source_p->name, source_p->username, source_p->host);
 112                 }
 113                 return 0;
 114         }
 115
 116         if (oper_p->certfp != NULL)
 117         {
 118                 if (source_p->certfp == NULL || strcasecmp(source_p->certfp, oper_p->certfp))
 119                 {
 120                         sendto_one_numeric(source_p, ERR_NOOPERHOST, form_str(ERR_NOOPERHOST));
 121                         ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s) -- client certificate fingerprint mismatch",
 122                              name, source_p->name,
 123                              source_p->username, source_p->host, source_p->sockhost);
 124
 125                         if(ConfigFileEntry.failed_oper_notice)
 126                         {
 127                                 sendto_realops_snomask(SNO_GENERAL, L_ALL,
 128                                                      "Failed OPER attempt - client certificate fingerprint mismatch by %s (%s@%s)",
 129                                                      source_p->name, source_p->username, source_p->host);
 130                         }
 131                         return 0;
 132                 }
 133         }
 134
 135         if(match_oper_password(password, oper_p))
 136         {
 137                 oper_up(source_p, oper_p);
 138
 139                 ilog(L_OPERED, "OPER %s by %s!%s@%s (%s)",
 140                      name, source_p->name, source_p->username, source_p->host,
 141                      source_p->sockhost);
 142                 return 0;
 143         }
 144         else
 145         {
 146                 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
 147                            me.name, source_p->name);
 148
 149                 ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
 150                      name, source_p->name, source_p->username, source_p->host,
 151                      source_p->sockhost);
 152
 153                 if(ConfigFileEntry.failed_oper_notice)
 154                 {
 155                         sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
 156                                              "Failed OPER attempt by %s (%s@%s)",
 157                                              source_p->name, source_p->username, source_p->host);
 158                 }
 159         }
 160
 161         return 0;
 162 }
 163
 164 /*
 165  * match_oper_password
 166  *
 167  * inputs       - pointer to given password
 168  *              - pointer to Conf
 169  * output       - YES or NO if match
 170  * side effects - none
 171  */
 172 static int
 173 match_oper_password(const char *password, struct oper_conf *oper_p)
 174 {
 175         const char *encr;
 176
 177         /* passwd may be NULL pointer. Head it off at the pass... */
 178         if(EmptyString(oper_p->passwd))
 179                 return NO;
 180
 181         if(IsOperConfEncrypted(oper_p))
 182         {
 183                 /* use first two chars of the password they send in as salt */
 184                 /* If the password in the conf is MD5, and ircd is linked
 185                  * to scrypt on FreeBSD, or the standard crypt library on
 186                  * glibc Linux, then this code will work fine on generating
 187                  * the proper encrypted hash for comparison.
 188                  */
 189                 if(!EmptyString(password))
 190                         encr = rb_crypt(password, oper_p->passwd);
 191                 else
 192                         encr = "";
 193         }
 194         else
 195                 encr = password;
 196
 197         if(encr != NULL && strcmp(encr, oper_p->passwd) == 0)
 198                 return YES;
 199         else
 200                 return NO;
 201 }