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/*
* ircd-ratbox: A slightly useful ircd.
* m_oper.c: Makes a user an IRC Operator.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "stdinc.h"
#include "client.h"
#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_newconf.h"
#include "logger.h"
#include "s_user.h"
#include "s_serv.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "packet.h"
#include "cache.h"
static const char oper_desc[] = "Provides the OPER command to become an IRC operator";
static void m_oper(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void mc_oper(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void me_oper(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static bool match_oper_password(const char *password, struct oper_conf *oper_p);
struct Message oper_msgtab = {
"OPER", 0, 0, 0, 0,
{mg_unreg, {m_oper, 3}, {mc_oper, 2}, mg_ignore, {me_oper, 2}, {m_oper, 3}}
};
mapi_clist_av1 oper_clist[] = { &oper_msgtab, NULL };
DECLARE_MODULE_AV2(oper, NULL, NULL, oper_clist, NULL, NULL, NULL, NULL, oper_desc);
/*
* m_oper
* parv[1] = oper name
* parv[2] = oper password
*/
static void
m_oper(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct oper_conf *oper_p;
const char *name;
const char *password;
name = parv[1];
password = parv[2];
if (ConfigFileEntry.oper_secure_only && !IsSecureClient(source_p))
{
sendto_one_notice(source_p, ":You must be using a secure connection to /OPER on this server");
if (ConfigFileEntry.failed_oper_notice)
{
sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
"Failed OPER attempt - missing secure connection by %s (%s@%s)",
source_p->name, source_p->username, source_p->host);
}
return;
}
if(IsOper(source_p))
{
sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
send_oper_motd(source_p);
return;
}
/* end the grace period */
if(!IsFloodDone(source_p))
flood_endgrace(source_p);
oper_p = find_oper_conf(source_p->username, source_p->orighost,
source_p->sockhost, name);
if(oper_p == NULL)
{
sendto_one_numeric(source_p, ERR_NOOPERHOST, form_str(ERR_NOOPERHOST));
ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
name, source_p->name,
source_p->username, source_p->host, source_p->sockhost);
if(ConfigFileEntry.failed_oper_notice)
{
sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
"Failed OPER attempt - user@host mismatch or no operator block for %s by %s (%s@%s)",
name, source_p->name, source_p->username, source_p->host);
}
return;
}
if(IsOperConfNeedSSL(oper_p) && !IsSecureClient(source_p))
{
sendto_one_numeric(source_p, ERR_NOOPERHOST, form_str(ERR_NOOPERHOST));
ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s) -- requires SSL/TLS",
name, source_p->name,
source_p->username, source_p->host, source_p->sockhost);
if(ConfigFileEntry.failed_oper_notice)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"Failed OPER attempt - missing SSL/TLS by %s (%s@%s)",
source_p->name, source_p->username, source_p->host);
}
return;
}
if (oper_p->certfp != NULL)
{
if (source_p->certfp == NULL || rb_strcasecmp(source_p->certfp, oper_p->certfp))
{
sendto_one_numeric(source_p, ERR_NOOPERHOST, form_str(ERR_NOOPERHOST));
ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s) -- client certificate fingerprint mismatch",
name, source_p->name,
source_p->username, source_p->host, source_p->sockhost);
if(ConfigFileEntry.failed_oper_notice)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"Failed OPER attempt - client certificate fingerprint mismatch by %s (%s@%s)",
source_p->name, source_p->username, source_p->host);
}
return;
}
}
if(match_oper_password(password, oper_p))
{
oper_up(source_p, oper_p);
ilog(L_OPERED, "OPER %s by %s!%s@%s (%s)",
name, source_p->name, source_p->username, source_p->host,
source_p->sockhost);
return;
}
else
{
sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
me.name, source_p->name);
ilog(L_FOPER, "FAILED OPER (%s) by (%s!%s@%s) (%s)",
name, source_p->name, source_p->username, source_p->host,
source_p->sockhost);
if(ConfigFileEntry.failed_oper_notice)
{
sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
"Failed OPER attempt by %s (%s@%s)",
source_p->name, source_p->username, source_p->host);
}
}
}
/*
* mc_oper - server-to-server OPER propagation
* parv[1] = opername
* parv[2] = privset
*/
static void
mc_oper(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct PrivilegeSet *privset;
if (parc >= 3)
{
sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s OPER %s %s", use_id(source_p), parv[1], parv[2]);
privset = privilegeset_get(parv[2]);
if(privset == NULL)
{
/* if we don't have a matching privset, we'll create an empty one and
* mark it illegal, so it gets picked up on a rehash later */
sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "Received OPER for %s with unknown privset %s", source_p->name, parv[2]);
privset = privilegeset_set_new(parv[2], "", 0);
privset->status |= CONF_ILLEGAL;
}
privset = privilegeset_ref(privset);
if (source_p->user->privset != NULL)
privilegeset_unref(source_p->user->privset);
source_p->user->privset = privset;
}
else
{
sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s OPER %s", use_id(source_p), parv[1]);
}
rb_free(source_p->user->opername);
source_p->user->opername = rb_strdup(parv[1]);
}
/*
* me_oper - ircd-seven-style OPER propagation
* parv[1] = opername
*/
static void
me_oper(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
rb_free(source_p->user->opername);
source_p->user->opername = rb_strdup(parv[1]);
}
/*
* match_oper_password
*
* inputs - pointer to given password
* - pointer to Conf
* output - true if match, false otherwise
* side effects - none
*/
static bool
match_oper_password(const char *password, struct oper_conf *oper_p)
{
const char *encr;
/* passwd may be NULL pointer. Head it off at the pass... */
if(EmptyString(oper_p->passwd))
return false;
if(IsOperConfEncrypted(oper_p))
{
/* use first two chars of the password they send in as salt */
/* If the password in the conf is MD5, and ircd is linked
* to scrypt on FreeBSD, or the standard crypt library on
* glibc Linux, then this code will work fine on generating
* the proper encrypted hash for comparison.
*/
if(!EmptyString(password))
encr = rb_crypt(password, oper_p->passwd);
else
encr = "";
}
else
encr = password;
if(encr != NULL && strcmp(encr, oper_p->passwd) == 0)
return true;
else
return false;
}
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