These deal with set::anti-flood::everyone::connect-flood and
set::max-unknown-connections-per-ip respectively.
This adds a new hook HOOKTYPE_ACCEPT, that is mostly meant for internal
usage by UnrealIRCd. Most module coders will want to use the existing
hook HOOKTYPE_HANDSHAKE instead.
This also gets of check_banned() which is now spread over the individual
modules (eg: checking banned is done in tkl on HOOKTYPE_ACCEPT and
HOOKTYPE_IP_CHANGE).
but it seems there were still a couple left. These are now gone as well.
There seem to be no issues with the ones that were left, but it is just
too easy to get it wrong. Declaring buf in function now. This should be
faster anyway, since it is located on nearby memory (stack).
Inspired by previous find from westor (c708a99955c034e842f913479cc597d87b311394).
if the oper block permits, the user does not have to send "OPER xyz".
Eg:
security-group Syzop { certfp "xyz"; }
oper Syzop {
auto-login yes;
mask { security-group Syzop; }
operclass netadmin-with-override;
class opers;
}
Then, if you connect with SSL with that certificate fingerprint,
you become IRCOp automatically.
and other selectors in 'mask'. This allows for things like:
security-group Syzop { certfp "xyz"; }
oper Syzop {
mask { security-group Syzop; }
operclass netadmin-with-override;
class opers;
}
except ban {
mask { security-group Syzop; }
type all;
}
allow {
mask { security-group Syzop; }
class special;
maxperip 32;
}
etc...
We do error on the obvious case of mask * and mask *@* when no password
is set, but otherwise try not to stop all cases of user stupidity
(there are just too many...).
Reported by ZarTek-Creole in https://bugs.unrealircd.org/view.php?id=6114
We now call HOOKTYPE_LOCAL_CHANMODE on the modes we set in modes-on-join,
where 'client' is '&me'. Should be fine, as we already did the same for
+P modes (indirectly) in channeldb.
across servers if they differed, however the individual IP of users
was not updated until next add_scores() run. So, there would be an
up to 5 minute delay during which scores for individual users were
possibly too low, with all the effects that it could possibly have
nowadays such as restrict-commands, more stringent flood limits, etc.
If your servers are all linked all the time then you would not have
noticed this issue. It mostly matters if you are linking in a new
server or if the server has been delinked or out of order for days
or weeks.
So you can just use mask { ip { 127.*; 192.168.*; } } without
having to worry about hostnames like 127.example.net.
(Of course you could also have used CIDR notation)
Another benefit is that, since we are dealing with IP's only,
the matching is faster than going through the more universal
match_user() routine.
So now the example in the release notes actually works:
except ban {
mask { security-group irccloud; }
type { blacklist; connect-flood; handshake-data-flood; }
}
Suggested by westor in https://bugs.unrealircd.org/view.php?id=6083
(It is not under "user" because the info can be useful before someone
is considered a user, eg when flooding/rejected/etc)
this is a https://www.unrealircd.org/docs/Mask_item so very flexible.
Note that most people would want to use except ban { } instead to
simply exempt from ALL blacklists. (that one does not yet have the
flexible mask capability though.. but it wil have it soon..)
Pretty much everywhere we had:
0001 userhost_changed(client);
0002 if (MyUser(client))
0003 sendnumeric(client, RPL_HOSTHIDDEN, client->user->virthost);
Lines 2-3 are now integrated in userhost_changed().
Also fix two issues with CHGHOST in make_oper():
* if user was -x, modes had +x and a vhost, it would send the cloaked
host in the original vhost, while it should have been the real host
* if user was -x and went +x without vhost (so only uncloaked to cloaked)
then no CHGHOST message was sent at all
Automatically convert the old options ::sasl-bypass, ::webirc-bypass
and ::minimum-reputation-score, so nobody needs to update their config.
The example.conf has been updated.
(Also call it allow::match in the future, but accept allow::mask still)
This is the first of several commits to convert all ::mask items.
See https://www.unrealircd.org/docs/Mask_item for the consequences.
In short, you can now use all of the security-group items directly
in a mask, eg:
allow {
mask { account TrustedUser; }
class clients;
maxperip 10;
}
The extban module API is used behind the scenes. To the server admin
the functionality appears in a more natural way:
account { <list>; };
country { <list>; };
realname { <list>; };
certfp { <list>; };
In the same way, they appear as exclude-xxx options too:
exclude-account { <list>; };
exclude-country { <list>; };
exclude-realname { <list>; };
exclude-certfp { <list>; };
Modules can add additional fields (3rd party modules too!).
Module coders:
See src/modules/extbans/realname.c for a simple example. In short:
1) You need to register your extban in both MOD_TEST and MOD_INIT
2) Other than that, the existing rules for extended server bans apply:
a) Your req.is_banned_events needs to include BANCHK_TKL
b) Your req.options needs to include EXTBOPT_TKL
Be advised that for modules that are called in extended server bans
the client may be missing several fields, for example client->user could
be NULL, so be careful with accessing everything in your module.
The set::whois-details name for this is: security-groups.
https://www.unrealircd.org/docs/Set_block#set::whois-details
By default it is shown ONLY to IRCOps, not even to 'self' for normal users.
If you want to hide it for everyone, even to IRCOps, eg because you
feel it is useless information, then you can use:
set {
whois-details {
security-groups { everyone none; self none; oper none; }
}
}
This existed in UnrealIRCd 3.2.x but was later removed when
switching to the new operclass system.
Requested by Valware in https://bugs.unrealircd.org/view.php?id=6041
Syntax: SVSO <uid|nick> <oper account> <operclass> <class> <modes> <snomask> <vhost>
All these parameters need to be set, you cannot leave any of them out,
HOWEVER some can be set to "-" to skip setting them, this is true for:
<class>, <modes>, <snomask>, <vhost>
In UnrealIRCd the <operclass> will be prefixed by "services:" if not already
present. It is up to you to include or omit it.
If you want to set any swhoises you need to use the SWHOIS s2s command,
other than that this command basically does everything for you,
in fact it uses the same code as the OPER command does.
Most of the "user is now ircop" code has been moved out of cmd_oper() to
a new function make_oper() that is called by both cmd_oper() and cmd_svso().
This function also changes the hook HOOKTYPE_LOCAL_OPER:
It no longer passes a ConfigItem_oper struct, since we can't do that for
remote opers. Instead it passes oper name and oper class.
The complete definition is now:
int hooktype_local_oper(Client *client, int add, const char *oper_block, const char *operclass);
thus the 'unset time' would be stripped.
This was because the timedban module was seen as 'unavailable' when
checking the +f syntax so early in the booting process.
We now assume timedban is available during config testing, if it later
turns out it is not available the 'unset time' is still stripped
when setting the mode on JOIN.
Reported by ctcp.
Bram Matthys