53307da8ca
Note that in some cases (different TS delta settings, heavy lag) it is possible only one of the servers detects the problem and autoconnect may be left enabled. The mechanism used for disabling is the same as /quote set autoconn <server> 0; the A flag in /stats c disappears and a rehash or /quote set autoconn can put it back.
796 lines
16 KiB
C
796 lines
16 KiB
C
/*
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* ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
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* s_newconf.c - code for dealing with conf stuff
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*
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* Copyright (C) 2004 Lee Hardy <lee@leeh.co.uk>
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* Copyright (C) 2004-2005 ircd-ratbox development team
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1.Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2.Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3.The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: s_newconf.c 3508 2007-06-04 16:04:49Z jilles $
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*/
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#include "stdinc.h"
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#include "ircd_defs.h"
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#include "common.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "client.h"
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#include "s_serv.h"
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#include "send.h"
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#include "hostmask.h"
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#include "newconf.h"
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#include "hash.h"
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#include "irc_dictionary.h"
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rb_dlink_list shared_conf_list;
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rb_dlink_list cluster_conf_list;
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rb_dlink_list oper_conf_list;
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rb_dlink_list hubleaf_conf_list;
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rb_dlink_list server_conf_list;
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rb_dlink_list xline_conf_list;
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rb_dlink_list resv_conf_list; /* nicks only! */
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rb_dlink_list nd_list; /* nick delay */
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rb_dlink_list tgchange_list;
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rb_patricia_tree_t *tgchange_tree;
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static rb_bh *nd_heap = NULL;
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static void expire_temp_rxlines(void *unused);
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static void expire_nd_entries(void *unused);
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struct ev_entry *expire_nd_entries_ev = NULL;
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struct ev_entry *expire_temp_rxlines_ev = NULL;
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void
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init_s_newconf(void)
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{
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tgchange_tree = rb_new_patricia(PATRICIA_BITS);
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nd_heap = rb_bh_create(sizeof(struct nd_entry), ND_HEAP_SIZE, "nd_heap");
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expire_nd_entries_ev = rb_event_addish("expire_nd_entries", expire_nd_entries, NULL, 30);
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expire_temp_rxlines_ev = rb_event_addish("expire_temp_rxlines", expire_temp_rxlines, NULL, 60);
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}
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void
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clear_s_newconf(void)
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{
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struct server_conf *server_p;
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rb_dlink_node *ptr;
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rb_dlink_node *next_ptr;
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, shared_conf_list.head)
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{
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/* ptr here is ptr->data->node */
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rb_dlinkDelete(ptr, &shared_conf_list);
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free_remote_conf(ptr->data);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, cluster_conf_list.head)
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{
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rb_dlinkDelete(ptr, &cluster_conf_list);
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free_remote_conf(ptr->data);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, hubleaf_conf_list.head)
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{
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rb_dlinkDelete(ptr, &hubleaf_conf_list);
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free_remote_conf(ptr->data);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, oper_conf_list.head)
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{
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free_oper_conf(ptr->data);
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rb_dlinkDestroy(ptr, &oper_conf_list);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, server_conf_list.head)
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{
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server_p = ptr->data;
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if(!server_p->servers)
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{
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rb_dlinkDelete(ptr, &server_conf_list);
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free_server_conf(ptr->data);
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}
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else
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server_p->flags |= SERVER_ILLEGAL;
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}
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}
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void
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clear_s_newconf_bans(void)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr, *next_ptr;
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head)
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{
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aconf = ptr->data;
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if(aconf->hold)
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continue;
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free_conf(aconf);
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rb_dlinkDestroy(ptr, &xline_conf_list);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
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{
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aconf = ptr->data;
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/* temporary resv */
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if(aconf->hold)
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continue;
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free_conf(aconf);
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rb_dlinkDestroy(ptr, &resv_conf_list);
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}
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clear_resv_hash();
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}
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struct remote_conf *
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make_remote_conf(void)
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{
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struct remote_conf *remote_p = rb_malloc(sizeof(struct remote_conf));
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return remote_p;
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}
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void
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free_remote_conf(struct remote_conf *remote_p)
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{
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s_assert(remote_p != NULL);
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if(remote_p == NULL)
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return;
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rb_free(remote_p->username);
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rb_free(remote_p->host);
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rb_free(remote_p->server);
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rb_free(remote_p);
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}
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int
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find_shared_conf(const char *username, const char *host,
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const char *server, int flags)
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{
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struct remote_conf *shared_p;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, shared_conf_list.head)
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{
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shared_p = ptr->data;
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if(match(shared_p->username, username) &&
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match(shared_p->host, host) &&
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match(shared_p->server, server))
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{
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if(shared_p->flags & flags)
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return YES;
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else
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return NO;
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}
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}
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return NO;
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}
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void
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propagate_generic(struct Client *source_p, const char *command,
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const char *target, int cap, const char *format, ...)
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{
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char buffer[BUFSIZE];
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va_list args;
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va_start(args, format);
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rb_vsnprintf(buffer, sizeof(buffer), format, args);
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va_end(args);
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sendto_match_servs(source_p, target, cap, NOCAPS,
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"%s %s %s",
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command, target, buffer);
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sendto_match_servs(source_p, target, CAP_ENCAP, cap,
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"ENCAP %s %s %s",
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target, command, buffer);
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}
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void
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cluster_generic(struct Client *source_p, const char *command,
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int cltype, int cap, const char *format, ...)
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{
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char buffer[BUFSIZE];
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struct remote_conf *shared_p;
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va_list args;
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rb_dlink_node *ptr;
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va_start(args, format);
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rb_vsnprintf(buffer, sizeof(buffer), format, args);
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va_end(args);
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RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
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{
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shared_p = ptr->data;
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if(!(shared_p->flags & cltype))
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continue;
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sendto_match_servs(source_p, shared_p->server, cap, NOCAPS,
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"%s %s %s",
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command, shared_p->server, buffer);
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sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, cap,
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"ENCAP %s %s %s",
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shared_p->server, command, buffer);
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}
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}
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struct oper_conf *
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make_oper_conf(void)
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{
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struct oper_conf *oper_p = rb_malloc(sizeof(struct oper_conf));
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return oper_p;
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}
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void
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free_oper_conf(struct oper_conf *oper_p)
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{
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s_assert(oper_p != NULL);
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if(oper_p == NULL)
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return;
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rb_free(oper_p->username);
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rb_free(oper_p->host);
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rb_free(oper_p->name);
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if(oper_p->passwd)
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{
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memset(oper_p->passwd, 0, strlen(oper_p->passwd));
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rb_free(oper_p->passwd);
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}
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#ifdef HAVE_LIBCRYPTO
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rb_free(oper_p->rsa_pubkey_file);
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if(oper_p->rsa_pubkey)
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RSA_free(oper_p->rsa_pubkey);
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#endif
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rb_free(oper_p);
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}
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struct oper_conf *
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find_oper_conf(const char *username, const char *host, const char *locip, const char *name)
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{
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struct oper_conf *oper_p;
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struct rb_sockaddr_storage ip, cip;
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char addr[HOSTLEN+1];
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int bits, cbits;
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rb_dlink_node *ptr;
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parse_netmask(locip, (struct sockaddr *)&cip, &cbits);
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RB_DLINK_FOREACH(ptr, oper_conf_list.head)
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{
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oper_p = ptr->data;
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/* name/username doesnt match.. */
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if(irccmp(oper_p->name, name) || !match(oper_p->username, username))
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continue;
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rb_strlcpy(addr, oper_p->host, sizeof(addr));
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if(parse_netmask(addr, (struct sockaddr *)&ip, &bits) != HM_HOST)
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{
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if(ip.ss_family == cip.ss_family &&
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comp_with_mask_sock((struct sockaddr *)&ip, (struct sockaddr *)&cip, bits))
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return oper_p;
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}
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/* we have to compare against the host as well, because its
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* valid to set a spoof to an IP, which if we only compare
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* in ip form to sockhost will not necessarily match --anfl
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*/
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if(match(oper_p->host, host))
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return oper_p;
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}
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return NULL;
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}
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struct server_conf *
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make_server_conf(void)
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{
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struct server_conf *server_p = rb_malloc(sizeof(struct server_conf));
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server_p->aftype = AF_INET;
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return server_p;
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}
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void
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free_server_conf(struct server_conf *server_p)
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{
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s_assert(server_p != NULL);
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if(server_p == NULL)
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return;
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if(!EmptyString(server_p->passwd))
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{
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memset(server_p->passwd, 0, strlen(server_p->passwd));
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rb_free(server_p->passwd);
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}
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if(!EmptyString(server_p->spasswd))
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{
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memset(server_p->spasswd, 0, strlen(server_p->spasswd));
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rb_free(server_p->spasswd);
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}
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rb_free(server_p->name);
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rb_free(server_p->host);
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rb_free(server_p->class_name);
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rb_free(server_p);
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}
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void
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add_server_conf(struct server_conf *server_p)
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{
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if(EmptyString(server_p->class_name))
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{
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server_p->class_name = rb_strdup("default");
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server_p->class = default_class;
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return;
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}
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server_p->class = find_class(server_p->class_name);
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if(server_p->class == default_class)
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{
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conf_report_error("Warning connect::class invalid for %s",
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server_p->name);
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rb_free(server_p->class_name);
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server_p->class_name = rb_strdup("default");
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}
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if(strchr(server_p->host, '*') || strchr(server_p->host, '?'))
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return;
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}
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struct server_conf *
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find_server_conf(const char *name)
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{
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struct server_conf *server_p;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, server_conf_list.head)
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{
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server_p = ptr->data;
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if(ServerConfIllegal(server_p))
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continue;
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if(match(name, server_p->name))
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return server_p;
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}
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return NULL;
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}
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void
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attach_server_conf(struct Client *client_p, struct server_conf *server_p)
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{
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/* already have an attached conf */
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if(client_p->localClient->att_sconf)
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{
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/* short circuit this special case :) */
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if(client_p->localClient->att_sconf == server_p)
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return;
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detach_server_conf(client_p);
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}
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CurrUsers(server_p->class)++;
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client_p->localClient->att_sconf = server_p;
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server_p->servers++;
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}
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void
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detach_server_conf(struct Client *client_p)
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{
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struct server_conf *server_p = client_p->localClient->att_sconf;
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if(server_p == NULL)
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return;
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client_p->localClient->att_sconf = NULL;
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server_p->servers--;
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CurrUsers(server_p->class)--;
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if(ServerConfIllegal(server_p) && !server_p->servers)
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{
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/* the class this one is using may need destroying too */
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if(MaxUsers(server_p->class) < 0 && CurrUsers(server_p->class) <= 0)
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free_class(server_p->class);
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rb_dlinkDelete(&server_p->node, &server_conf_list);
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free_server_conf(server_p);
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}
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}
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void
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set_server_conf_autoconn(struct Client *source_p, const char *name, int newval)
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{
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struct server_conf *server_p;
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if((server_p = find_server_conf(name)) != NULL)
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{
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if(newval)
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server_p->flags |= SERVER_AUTOCONN;
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else
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server_p->flags &= ~SERVER_AUTOCONN;
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"%s has changed AUTOCONN for %s to %i",
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get_oper_name(source_p), name, newval);
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}
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else
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sendto_one_notice(source_p, ":Can't find %s", name);
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}
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void
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disable_server_conf_autoconn(const char *name)
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{
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struct server_conf *server_p;
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server_p = find_server_conf(name);
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if(server_p != NULL && server_p->flags & SERVER_AUTOCONN)
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{
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server_p->flags &= ~SERVER_AUTOCONN;
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"Disabling AUTOCONN for %s because of error",
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name);
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ilog(L_SERVER, "Disabling AUTOCONN for %s because of error",
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name);
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}
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}
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struct ConfItem *
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find_xline(const char *gecos, int counter)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, xline_conf_list.head)
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|
{
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aconf = ptr->data;
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if(match_esc(aconf->name, gecos))
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{
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if(counter)
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aconf->port++;
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return aconf;
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}
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}
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return NULL;
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}
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struct ConfItem *
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find_xline_mask(const char *gecos)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, xline_conf_list.head)
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{
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aconf = ptr->data;
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if(!irccmp(aconf->name, gecos))
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return aconf;
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}
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return NULL;
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}
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struct ConfItem *
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find_nick_resv(const char *name)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, resv_conf_list.head)
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{
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aconf = ptr->data;
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|
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if(match_esc(aconf->name, name))
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{
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aconf->port++;
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return aconf;
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}
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}
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return NULL;
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}
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|
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struct ConfItem *
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find_nick_resv_mask(const char *name)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, resv_conf_list.head)
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{
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aconf = ptr->data;
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|
|
|
if(!irccmp(aconf->name, name))
|
|
return aconf;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* clean_resv_nick()
|
|
*
|
|
* inputs - nick
|
|
* outputs - 1 if nick is vaild resv, 0 otherwise
|
|
* side effects -
|
|
*/
|
|
int
|
|
clean_resv_nick(const char *nick)
|
|
{
|
|
char tmpch;
|
|
int as = 0;
|
|
int q = 0;
|
|
int ch = 0;
|
|
|
|
if(*nick == '-' || IsDigit(*nick))
|
|
return 0;
|
|
|
|
while ((tmpch = *nick++))
|
|
{
|
|
if(tmpch == '?' || tmpch == '@' || tmpch == '#')
|
|
q++;
|
|
else if(tmpch == '*')
|
|
as++;
|
|
else if(IsNickChar(tmpch))
|
|
ch++;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
if(!ch && as)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* valid_wild_card_simple()
|
|
*
|
|
* inputs - "thing" to test
|
|
* outputs - 1 if enough wildcards, else 0
|
|
* side effects -
|
|
*/
|
|
int
|
|
valid_wild_card_simple(const char *data)
|
|
{
|
|
const char *p;
|
|
char tmpch;
|
|
int nonwild = 0;
|
|
int wild = 0;
|
|
|
|
/* check the string for minimum number of nonwildcard chars */
|
|
p = data;
|
|
|
|
while((tmpch = *p++))
|
|
{
|
|
/* found an escape, p points to the char after it, so skip
|
|
* that and move on.
|
|
*/
|
|
if(tmpch == '\\' && *p)
|
|
{
|
|
p++;
|
|
if(++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
|
|
return 1;
|
|
}
|
|
else if(!IsMWildChar(tmpch))
|
|
{
|
|
/* if we have enough nonwildchars, return */
|
|
if(++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
|
|
return 1;
|
|
}
|
|
else
|
|
wild++;
|
|
}
|
|
|
|
/* strings without wilds are also ok */
|
|
return wild == 0;
|
|
}
|
|
|
|
time_t
|
|
valid_temp_time(const char *p)
|
|
{
|
|
time_t result = 0;
|
|
|
|
while(*p)
|
|
{
|
|
if(IsDigit(*p))
|
|
{
|
|
result *= 10;
|
|
result += ((*p) & 0xF);
|
|
p++;
|
|
}
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
if(result > (60 * 24 * 7 * 52))
|
|
result = (60 * 24 * 7 * 52);
|
|
|
|
return(result * 60);
|
|
}
|
|
|
|
static void
|
|
expire_temp_rxlines(void *unused)
|
|
{
|
|
struct ConfItem *aconf;
|
|
rb_dlink_node *ptr;
|
|
rb_dlink_node *next_ptr;
|
|
int i;
|
|
|
|
HASH_WALK_SAFE(i, R_MAX, ptr, next_ptr, resvTable)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(aconf->hold && aconf->hold <= rb_current_time())
|
|
{
|
|
if(ConfigFileEntry.tkline_expire_notices)
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"Temporary RESV for [%s] expired",
|
|
aconf->name);
|
|
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &resvTable[i]);
|
|
}
|
|
}
|
|
HASH_WALK_END
|
|
|
|
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(aconf->hold && aconf->hold <= rb_current_time())
|
|
{
|
|
if(ConfigFileEntry.tkline_expire_notices)
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"Temporary RESV for [%s] expired",
|
|
aconf->name);
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &resv_conf_list);
|
|
}
|
|
}
|
|
|
|
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(aconf->hold && aconf->hold <= rb_current_time())
|
|
{
|
|
if(ConfigFileEntry.tkline_expire_notices)
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"Temporary X-line for [%s] expired",
|
|
aconf->name);
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &xline_conf_list);
|
|
}
|
|
}
|
|
}
|
|
|
|
unsigned long
|
|
get_nd_count(void)
|
|
{
|
|
return(rb_dlink_list_length(&nd_list));
|
|
}
|
|
|
|
void
|
|
add_nd_entry(const char *name)
|
|
{
|
|
struct nd_entry *nd;
|
|
|
|
if(irc_dictionary_find(nd_dict, name) != NULL)
|
|
return;
|
|
|
|
nd = rb_bh_alloc(nd_heap);
|
|
|
|
rb_strlcpy(nd->name, name, sizeof(nd->name));
|
|
nd->expire = rb_current_time() + ConfigFileEntry.nick_delay;
|
|
|
|
/* this list is ordered */
|
|
rb_dlinkAddTail(nd, &nd->lnode, &nd_list);
|
|
|
|
irc_dictionary_add(nd_dict, nd->name, nd);
|
|
}
|
|
|
|
void
|
|
free_nd_entry(struct nd_entry *nd)
|
|
{
|
|
irc_dictionary_delete(nd_dict, nd->name);
|
|
|
|
rb_dlinkDelete(&nd->lnode, &nd_list);
|
|
rb_bh_free(nd_heap, nd);
|
|
}
|
|
|
|
void
|
|
expire_nd_entries(void *unused)
|
|
{
|
|
struct nd_entry *nd;
|
|
rb_dlink_node *ptr;
|
|
rb_dlink_node *next_ptr;
|
|
|
|
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, nd_list.head)
|
|
{
|
|
nd = ptr->data;
|
|
|
|
/* this list is ordered - we can stop when we hit the first
|
|
* entry that doesnt expire..
|
|
*/
|
|
if(nd->expire > rb_current_time())
|
|
return;
|
|
|
|
free_nd_entry(nd);
|
|
}
|
|
}
|
|
|
|
void
|
|
add_tgchange(const char *host)
|
|
{
|
|
tgchange *target;
|
|
rb_patricia_node_t *pnode;
|
|
|
|
if(find_tgchange(host))
|
|
return;
|
|
|
|
target = rb_malloc(sizeof(tgchange));
|
|
pnode = make_and_lookup(tgchange_tree, host);
|
|
|
|
pnode->data = target;
|
|
target->pnode = pnode;
|
|
|
|
target->ip = rb_strdup(host);
|
|
target->expiry = rb_current_time() + (60*60*12);
|
|
|
|
rb_dlinkAdd(target, &target->node, &tgchange_list);
|
|
}
|
|
|
|
tgchange *
|
|
find_tgchange(const char *host)
|
|
{
|
|
rb_patricia_node_t *pnode;
|
|
|
|
if((pnode = rb_match_exact_string(tgchange_tree, host)))
|
|
return pnode->data;
|
|
|
|
return NULL;
|
|
}
|
|
|