mirror of
https://github.com/unrealircd/unrealircd.git
synced 2026-07-01 19:26:39 +02:00
Bram Matthys
dddc8f07e4
- Server protocol: added PROTOCTL EATH=servername, which allows us to
authenticate the server very early in the handshake process. That way,
certain commands and PROTOCTL tokens can 'trust' the server.
See doc/technical/protoctl.txt for details.
- Server protocol: between new Unreal servers we now do the handshake a
little bit different, so it waits with sending the SERVER command until
the first PROTOCTL is received. Needed for next.
- Server protocol: added PROTOCTL SERVERS=1,2,3,4,etc by which a server can
inform the other server which servers (server numeric, actually) it has
linked. See doc/technical/protoctl.txt and next for details.
- When our server was trying to link to some server, and at the same time
another server was also trying to link with us, this would lead to a
server collision: the server would link (twice) ok at first, but then a
second later or so both would quit with 'Server Exists' with quite some
mess as a result. This isn't unique to Unreal, btw.
This happened more often when you had a low connfreq in your link blocks
(aka: quick reconnects), or had multiple hubs on autoconnect (with same
connfreq), or when you (re)started all servers at the same time.
This should now be solved by a new server handshake design, which detects
this race condition and solves it by closing one of the two (or more)
connections to avoid the issue.
This also means that it should now be safe to have multiple hubs with low
connfreq's (eg: 10s) without risking that your network falls apart.
This new server handshake (protocol updates, etc) was actually quite some
work, especially for something that only happened sporadically. I felt it
was needed though, because (re)linking stability is extremely important.
This new feature/design/fix requires extensive testing.
This feature can be disabled by: set { new-linking-protocol 0; };
397 lines
12 KiB
C
397 lines
12 KiB
C
/************************************************************************
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* Unreal Internet Relay Chat Daemon, include/dynconf.h
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* Copyright (C) 1999 Carsten Munk
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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*/
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#define DYNCONF_H
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/* config level */
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#define DYNCONF_CONF_VERSION "1.5"
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#define DYNCONF_NETWORK_VERSION "2.2"
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typedef struct zNetwork aNetwork;
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struct zNetwork {
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unsigned x_inah:1;
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char *x_ircnetwork;
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char *x_ircnet005;
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char *x_defserv;
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char *x_services_name;
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char *x_oper_host;
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char *x_admin_host;
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char *x_locop_host;
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char *x_sadmin_host;
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char *x_netadmin_host;
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char *x_coadmin_host;
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char *x_hidden_host;
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char *x_prefix_quit;
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char *x_helpchan;
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char *x_stats_server;
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};
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enum UHAllowed { UHALLOW_ALWAYS, UHALLOW_NOCHANS, UHALLOW_REJOIN, UHALLOW_NEVER };
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struct ChMode {
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long mode;
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#ifdef EXTCMODE
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long extmodes;
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char *extparams[EXTCMODETABLESZ];
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#endif
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#ifdef NEWCHFLOODPROT
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ChanFloodProt floodprot;
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#else
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unsigned short msgs;
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unsigned short per;
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unsigned char kmode;
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#endif
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};
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typedef struct _OperStat {
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struct _OperStat *prev, *next;
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char *flag;
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} OperStat;
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typedef struct zConfiguration aConfiguration;
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struct zConfiguration {
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unsigned som:1;
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unsigned hide_ulines:1;
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unsigned flat_map:1;
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unsigned allow_chatops:1;
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unsigned webtv_support:1;
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unsigned no_oper_hiding:1;
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unsigned ident_check:1;
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unsigned fail_oper_warn:1;
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unsigned show_connect_info:1;
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unsigned dont_resolve:1;
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unsigned use_ban_version:1;
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unsigned mkpasswd_for_everyone:1;
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unsigned allow_part_if_shunned:1;
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unsigned check_target_nick_bans:1;
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unsigned use_egd : 1;
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long host_timeout;
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int host_retries;
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char *name_server;
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char *dns_bindip;
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#ifdef THROTTLING
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long throttle_period;
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char throttle_count;
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#endif
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char *kline_address;
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char *gline_address;
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long conn_modes;
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long oper_modes;
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char *oper_snomask;
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char *user_snomask;
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char *auto_join_chans;
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char *oper_auto_join_chans;
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char *oper_only_stats;
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OperStat *oper_only_stats_ext;
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int maxchannelsperuser;
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int maxdccallow;
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int anti_spam_quit_message_time;
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char *egd_path;
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char *static_quit;
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char *static_part;
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#ifdef USE_SSL
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char *x_server_cert_pem;
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char *x_server_key_pem;
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char *x_server_cipher_list;
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char *trusted_ca_file;
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long ssl_options;
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int ssl_renegotiate_bytes;
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int ssl_renegotiate_timeout;
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#elif defined(_WIN32)
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void *bogus1, *bogus2, *bogus3, *bogus5;
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long bogus4;
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int bogus6, bogus7;
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#endif
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enum UHAllowed userhost_allowed;
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char *restrict_usermodes;
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char *restrict_channelmodes;
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char *restrict_extendedbans;
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int new_linking_protocol;
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char *channel_command_prefix;
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long unknown_flood_bantime;
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long unknown_flood_amount;
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struct ChMode modes_on_join;
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int level_on_join;
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#ifdef NO_FLOOD_AWAY
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unsigned char away_count;
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long away_period;
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#endif
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unsigned char nick_count;
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long nick_period;
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int ident_connect_timeout;
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int ident_read_timeout;
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long default_bantime;
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int who_limit;
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int silence_limit;
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#ifdef NEWCHFLOODPROT
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unsigned char modef_default_unsettime;
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unsigned char modef_max_unsettime;
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#endif
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long ban_version_tkl_time;
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long spamfilter_ban_time;
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char *spamfilter_ban_reason;
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char *spamfilter_virus_help_channel;
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char spamfilter_vchan_deny;
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SpamExcept *spamexcept;
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char *spamexcept_line;
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long spamfilter_detectslow_warn;
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long spamfilter_detectslow_fatal;
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int maxbans;
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int maxbanlength;
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int timesynch_enabled;
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int timesynch_timeout;
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char *timesynch_server;
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int pingpong_warning;
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int watch_away_notification;
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aNetwork network;
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};
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#ifndef DYNCONF_C
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extern MODVAR aConfiguration iConf;
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#endif
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#define KLINE_ADDRESS iConf.kline_address
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#define GLINE_ADDRESS iConf.gline_address
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#define CONN_MODES iConf.conn_modes
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#define OPER_MODES iConf.oper_modes
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#define OPER_SNOMASK iConf.oper_snomask
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#define CONNECT_SNOMASK iConf.user_snomask
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#define SHOWOPERMOTD iConf.som
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#define HIDE_ULINES iConf.hide_ulines
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#define FLAT_MAP iConf.flat_map
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#define ALLOW_CHATOPS iConf.allow_chatops
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#define MAXCHANNELSPERUSER iConf.maxchannelsperuser
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#define MAXDCCALLOW iConf.maxdccallow
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#define WEBTV_SUPPORT iConf.webtv_support
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#define NO_OPER_HIDING iConf.no_oper_hiding
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#define DONT_RESOLVE iConf.dont_resolve
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#define AUTO_JOIN_CHANS iConf.auto_join_chans
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#define OPER_AUTO_JOIN_CHANS iConf.oper_auto_join_chans
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#define HOST_TIMEOUT iConf.host_timeout
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#define HOST_RETRIES iConf.host_retries
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#define NAME_SERVER iConf.name_server
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#define DNS_BINDIP iConf.dns_bindip
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#define IDENT_CHECK iConf.ident_check
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#define FAILOPER_WARN iConf.fail_oper_warn
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#define SHOWCONNECTINFO iConf.show_connect_info
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#define OPER_ONLY_STATS iConf.oper_only_stats
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#define ANTI_SPAM_QUIT_MSG_TIME iConf.anti_spam_quit_message_time
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#define USE_EGD iConf.use_egd
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#define EGD_PATH iConf.egd_path
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#define ircnetwork iConf.network.x_ircnetwork
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#define ircnet005 iConf.network.x_ircnet005
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#define defserv iConf.network.x_defserv
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#define SERVICES_NAME iConf.network.x_services_name
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#define oper_host iConf.network.x_oper_host
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#define admin_host iConf.network.x_admin_host
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#define locop_host iConf.network.x_locop_host
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#define sadmin_host iConf.network.x_sadmin_host
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#define netadmin_host iConf.network.x_netadmin_host
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#define coadmin_host iConf.network.x_coadmin_host
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#define techadmin_host iConf.network.x_techadmin_host
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#define hidden_host iConf.network.x_hidden_host
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#define helpchan iConf.network.x_helpchan
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#define STATS_SERVER iConf.network.x_stats_server
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#define iNAH iConf.network.x_inah
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#define prefix_quit iConf.network.x_prefix_quit
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#define SSL_SERVER_CERT_PEM (iConf.x_server_cert_pem ? iConf.x_server_cert_pem : "server.cert.pem")
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#define SSL_SERVER_KEY_PEM (iConf.x_server_key_pem ? iConf.x_server_key_pem : "server.key.pem")
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#define STATIC_QUIT iConf.static_quit
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#define STATIC_PART iConf.static_part
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#define UHOST_ALLOWED iConf.userhost_allowed
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#define RESTRICT_USERMODES iConf.restrict_usermodes
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#define RESTRICT_CHANNELMODES iConf.restrict_channelmodes
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#define RESTRICT_EXTENDEDBANS iConf.restrict_extendedbans
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#define NEW_LINKING_PROTOCOL iConf.new_linking_protocol
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#ifdef THROTTLING
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#define THROTTLING_PERIOD iConf.throttle_period
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#define THROTTLING_COUNT iConf.throttle_count
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#endif
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#define USE_BAN_VERSION iConf.use_ban_version
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#define UNKNOWN_FLOOD_BANTIME iConf.unknown_flood_bantime
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#define UNKNOWN_FLOOD_AMOUNT iConf.unknown_flood_amount
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#define MODES_ON_JOIN iConf.modes_on_join.mode
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#define LEVEL_ON_JOIN iConf.level_on_join
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#ifdef NO_FLOOD_AWAY
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#define AWAY_PERIOD iConf.away_period
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#define AWAY_COUNT iConf.away_count
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#endif
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#define NICK_PERIOD iConf.nick_period
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#define NICK_COUNT iConf.nick_count
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#define IDENT_CONNECT_TIMEOUT iConf.ident_connect_timeout
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#define IDENT_READ_TIMEOUT iConf.ident_read_timeout
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#define MKPASSWD_FOR_EVERYONE iConf.mkpasswd_for_everyone
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#define CHANCMDPFX iConf.channel_command_prefix
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#define DEFAULT_BANTIME iConf.default_bantime
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#define WHOLIMIT iConf.who_limit
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#ifdef NEWCHFLOODPROT
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#define MODEF_DEFAULT_UNSETTIME iConf.modef_default_unsettime
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#define MODEF_MAX_UNSETTIME iConf.modef_max_unsettime
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#endif
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#define ALLOW_PART_IF_SHUNNED iConf.allow_part_if_shunned
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#define BAN_VERSION_TKL_TIME iConf.ban_version_tkl_time
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#define SILENCE_LIMIT (iConf.silence_limit ? iConf.silence_limit : 15)
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#define SPAMFILTER_BAN_TIME iConf.spamfilter_ban_time
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#define SPAMFILTER_BAN_REASON iConf.spamfilter_ban_reason
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#define SPAMFILTER_VIRUSCHAN iConf.spamfilter_virus_help_channel
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#define SPAMFILTER_VIRUSCHANDENY iConf.spamfilter_vchan_deny
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#define SPAMFILTER_EXCEPT iConf.spamexcept_line
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#define SPAMFILTER_DETECTSLOW_WARN iConf.spamfilter_detectslow_warn
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#define SPAMFILTER_DETECTSLOW_FATAL iConf.spamfilter_detectslow_fatal
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#define CHECK_TARGET_NICK_BANS iConf.check_target_nick_bans
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#define MAXBANS iConf.maxbans
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#define MAXBANLENGTH iConf.maxbanlength
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#define TIMESYNCH iConf.timesynch_enabled
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#define TIMESYNCH_TIMEOUT iConf.timesynch_timeout
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#define TIMESYNCH_SERVER iConf.timesynch_server
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#define PINGPONG_WARNING iConf.pingpong_warning
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#define WATCH_AWAY_NOTIFICATION iConf.watch_away_notification
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/* Used for "is present?" and duplicate checking */
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struct SetCheck {
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unsigned has_show_opermotd:1;
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unsigned has_hide_ulines:1;
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unsigned has_flat_map:1;
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unsigned has_allow_chatops:1;
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unsigned has_webtv_support:1;
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unsigned has_no_oper_hiding:1;
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unsigned has_ident_check:1;
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unsigned has_fail_oper_warn:1;
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unsigned has_show_connect_info:1;
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unsigned has_dont_resolve:1;
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unsigned has_mkpasswd_for_everyone:1;
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unsigned has_allow_part_if_shunned:1;
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unsigned has_ssl_egd:1;
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unsigned has_ssl_server_cipher_list :1;
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unsigned has_dns_timeout:1;
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unsigned has_dns_retries:1;
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unsigned has_dns_nameserver:1;
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unsigned has_dns_bind_ip:1;
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#ifdef THROTTLING
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unsigned has_throttle_period:1;
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unsigned has_throttle_connections:1;
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#endif
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unsigned has_kline_address:1;
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unsigned has_gline_address:1;
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unsigned has_modes_on_connect:1;
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unsigned has_modes_on_oper:1;
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unsigned has_snomask_on_connect:1;
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unsigned has_snomask_on_oper:1;
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unsigned has_auto_join:1;
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unsigned has_oper_auto_join:1;
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unsigned has_check_target_nick_bans:1;
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unsigned has_pingpong_warning:1;
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unsigned has_watch_away_notification:1;
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unsigned has_oper_only_stats:1;
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unsigned has_maxchannelsperuser:1;
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unsigned has_maxdccallow:1;
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unsigned has_anti_spam_quit_message_time:1;
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unsigned has_egd_path:1;
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unsigned has_static_quit:1;
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unsigned has_static_part:1;
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#ifdef USE_SSL
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unsigned has_ssl_certificate:1;
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unsigned has_ssl_key:1;
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unsigned has_ssl_trusted_ca_file:1;
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unsigned has_ssl_options:1;
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unsigned has_renegotiate_timeout : 1;
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unsigned has_renegotiate_bytes : 1;
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#endif
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unsigned has_allow_userhost_change:1;
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unsigned has_restrict_usermodes:1;
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unsigned has_restrict_channelmodes:1;
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unsigned has_restrict_extendedbans:1;
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unsigned has_new_linking_protocol:1;
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unsigned has_channel_command_prefix:1;
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unsigned has_anti_flood_unknown_flood_bantime:1;
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unsigned has_anti_flood_unknown_flood_amount:1;
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unsigned has_modes_on_join:1;
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unsigned has_level_on_join:1;
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#ifdef NO_FLOOD_AWAY
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unsigned has_anti_flood_away_count:1;
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unsigned has_anti_flood_away_period:1;
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#endif
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unsigned has_anti_flood_nick_flood:1;
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unsigned has_ident_connect_timeout:1;
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unsigned has_ident_read_timeout:1;
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unsigned has_default_bantime:1;
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unsigned has_who_limit:1;
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unsigned has_maxbans:1;
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unsigned has_maxbanlength:1;
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unsigned has_silence_limit:1;
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#ifdef NEWCHFLOODPROT
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unsigned has_modef_default_unsettime:1;
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unsigned has_modef_max_unsettime:1;
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#endif
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unsigned has_ban_version_tkl_time:1;
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unsigned has_spamfilter_ban_time:1;
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unsigned has_spamfilter_ban_reason:1;
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unsigned has_spamfilter_virus_help_channel:1;
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unsigned has_spamfilter_virus_help_channel_deny:1;
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unsigned has_spamfilter_except:1;
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unsigned has_hosts_host_on_oper_up:1;
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unsigned has_network_name:1;
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unsigned has_default_server:1;
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unsigned has_services_server:1;
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unsigned has_hosts_global:1;
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unsigned has_hosts_admin:1;
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unsigned has_hosts_local:1;
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unsigned has_hosts_servicesadmin:1;
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unsigned has_hosts_netadmin:1;
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unsigned has_hosts_coadmin:1;
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unsigned has_hiddenhost_prefix:1;
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unsigned has_prefix_quit:1;
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unsigned has_help_channel:1;
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unsigned has_stats_server:1;
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unsigned has_cloak_keys:1;
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unsigned has_options_webtv_support:1;
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unsigned has_options_hide_ulines:1;
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unsigned has_options_flat_map:1;
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unsigned has_options_show_opermotd:1;
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unsigned has_options_identd_check:1;
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unsigned has_options_fail_oper_warn:1;
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unsigned has_options_dont_resolve:1;
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unsigned has_options_show_connect_info:1;
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unsigned has_options_mkpasswd_for_everyone:1;
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unsigned has_options_allow_part_if_shunned:1;
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int cgiirc_type; /* cheat :( */
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unsigned has_cgiirc_hosts:1;
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unsigned has_cgiirc_webpass:1;
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};
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