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Commit Graph

154 Commits

Author SHA1 Message Date
Bram Matthys dc55c3ec9f Add CALL_CMD_FUNC(cmd_func_name) and use it.
This is only for calls within the same module, as otherwise you
should use do_cmd().

Benefit of this way is that it is short and you don't have to worry
about passing the right command parameters, which may change over time.
Example as used in src/modules/nick.c:
-               cmd_nick_remote(client, recv_mtags, parc, parv);
+               CALL_CMD_FUNC(cmd_nick_remote);
2022-08-28 09:04:12 +02:00
Bram Matthys c85f666fed Fix server_ban_parse_mask() returning with variables set to local storage.
More precise, for extended server bans, usermask/hostmask was set to
a local variable that was not defined as static char[]. This would lead
to corrupt data and/or crashes.

Bug introduced a few days ago with 3d9b7e4b70
2022-06-27 10:49:46 +02:00
Bram Matthys c60fdad7eb RPC: add server_ban.add
This also moves some of the adding code (sending notice, broadcasting to
other servers, etc) to a function tkl_added().

We should probably do the same for deletion and not use the tkllayer
anymore for that?
2022-06-24 19:49:32 +02:00
Bram Matthys 3d9b7e4b70 RPC: remove tkl, split this up.. starting with server_ban.
Currently available:
* server_ban.list
* server_ban.get with params: name="*@1.2.3.4", type="kline"

This also adds server_ban_parse_mask() which is now used by both GLINE/etc
and the RPC API to parse the same way and convey the same error messages.
2022-06-24 18:53:10 +02:00
Bram Matthys 60c83b4ba1 Move connect-flood and max-unknown-connections-per-ip into their own module.
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).
2022-06-19 13:13:33 +00:00
Bram Matthys c9f8c42281 Fix CIDR not working in match { ip ....; } 2022-05-26 17:03:17 +02:00
Bram Matthys b28d8aecd7 Add "ip" to mask item and security-group for easy matching on IP.
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.
2022-05-25 08:34:22 +02:00
Bram Matthys 7ff4a3e897 Add the promised support of security group functionality in except ban { }
So now the example in the release notes actually works:
except ban {
    mask { security-group irccloud; }
    type { blacklist; connect-flood; handshake-data-flood; }
}
2022-05-25 08:01:05 +02:00
Bram Matthys fea7995a02 Fix crash when using ~security-group in except ban { }
This makes us no longer call the .is_ok() function for extbans
that are added through except ban { }. This because normally
the is_ok() function communicates to 'client', which is NULL
when it is called from the config code.
The alternative would have been to update all the extban modules
to check for a NULL client and deal with that but that would
need stupid amounts of code and it would not be of much value
as the error would not end up displaying on the console.
So, we now only on the .conv_param() function, which was already
only used for cases such as remote bans and such, and is already
known to have a NULL 'client' in TKL cases. Note that conv_param()
could still reject the ban, but it does it generally only in
the more extreme cases.

Reported by musk / PeGaSuS.
2022-05-07 08:06:05 +02:00
alicetries 2018502e74 Fix various log messages which had missing $expansions (#198) 2022-05-01 13:52:45 +02:00
Bram Matthys f3d827c577 Add HOOKTYPE_IP_CHANGE and call it when the IP address changes.
Eg for WEBIRC or other proxy.

This does not yet fix any problem, it just changes the way things are
called. More to follow.
2022-01-17 07:55:45 +01:00
Bram Matthys 40c528acde Add missing space in spamfilter log message.
This is a fix-for-fix b98d02817a.

Reported by armyn in https://bugs.unrealircd.org/view.php?id=6049
2021-12-30 16:42:29 +01:00
Bram Matthys f7719d2de2 Make TKL add/remove/expire oper messages show a [duration: 60m] instead of
the [expires: ZZZZZZZZZZZZZZZZZZZZ GMT] string.

This because most people are interested in the length of the ban (so
relative time) and the exact time a TKL expires is less interesting
(the absolute time) and due to GMT/UTC requires calculating to the
local timezone too.

This also makes the tkl expiry messages be more like the add message,
with []'s, while previous it used more free text at the end of the line.
2021-12-26 09:00:39 +01:00
Bram Matthys b98d02817a In SPAMFILTER_MATCH log message, remove leading space in 'destination' JSON.
Reported by armyn in https://bugs.unrealircd.org/view.php?id=6027
2021-12-22 17:11:44 +01:00
Bram Matthys c604a3a70e Make soft extended server bans actually work (GLINE %~country:XX)
Reported by musk in https://bugs.unrealircd.org/view.php?id=6019
2021-12-05 09:45:13 +01:00
Bram Matthys 2abef3cdfb Don't check for NULL client in match_user() since it cannot or should not be.
(raises false expectations)
[skip ci]
2021-11-06 13:33:37 +01:00
Bram Matthys 892a639272 Get rid of big chunk in postconf_defaults() that is unneeded / much
easier now, now that we process the set { } block before all other
blocks (since a few years already).
2021-09-25 17:27:53 +02:00
Bram Matthys 38e47b9b62 Rename find_person() to find_user() to be consistent in the naming that
we use since UnrealIRCd 5: we have users (IsUser) and servers (IsServer).
2021-09-25 16:44:11 +02:00
Bram Matthys 73b908e413 Changes to BanContext struct (extended ban API):
* Now ban_check_types (previously checktype):
  this is one or more of BANCHK_* OR'd together, eg BANCHK_JOIN, BANCHK_MSG..
* Now ban_type (previously what2):
  this is the type of the ban, eg EXBTYPE_BAN, EXBTYPE_EXCEPT, etc.
* Now is_ok_check (previously is_ok_checktype)
  this is one of EXBCHK_* for is_ok, eg EXBCHK_PARAM to check parameter.
2021-09-25 16:28:10 +02:00
Bram Matthys baa07b179f Get rid of some other old upgrade conf stuff as well. Remove some,
but keep some other errors, since they may still be helpful,
or at least for now.
2021-09-24 16:47:23 +02:00
Bram Matthys 139098919b Get rid of PREFIX_* in sendto_channel(), message.c and in chanmsg hook.
We use char *member_modes like we now have at all the other places,
which contains eg "o".

TODO: fix prefix sending rules or remove some if 0'd out code

And not sure if we want to do it entirely this way :D
2021-09-20 15:54:57 +02:00
Bram Matthys e27749f556 Use long long casts due to time_t difference on Windows vs Linux.
Should now compile without errors on both.
2021-09-12 15:29:26 +02:00
Bram Matthys 3b5b2b5c2f Get rid of -Wno-cast-function-type (well, mostly) and also check for
the existence of -Wno-unknown-warning-option so we can add these since
we use pragma's occasionally to suppress compiler warnings and some
of these may exist in gcc but not in clang or vice versions (and..
versions of course), which would otherwise yield an error.
2021-09-12 09:34:52 +02:00
Bram Matthys 62a56b041a Get rid of -Wno-address 2021-09-12 09:06:31 +02:00
Bram Matthys 8353a9e17b Change char *parv[] to const char *parv[] everywhere. This is a BIG change.
It means you can no longer modify eg parv[1] in-place with strtoken and such.

The main reason for this is that as a command handler you have no idea
where the arguments may come from. It could be from a do_cmd() with
read-only storage (eg a string literal) and so on.

It started with an experiment of how far I could get and how annoying the
side-effects would be, but they seem to be quite managable, so I'm
committing this stuff.

Hopefully this catches/solves some stupid bugs somewhere :)
2021-09-11 16:02:44 +02:00
Bram Matthys fcf020b99e It's raining consts... 2021-09-11 09:56:22 +02:00
Bram Matthys ac84d4f207 Const const const... modules.c and elsewhere. 2021-09-11 07:53:30 +02:00
Bram Matthys 74d1481dcb Do the same for RunHookReturn() and RunHookReturnInt().
NOTE: The arguments are swapped, it is now eg:
RunHookReturn(HOOKTYPE_SOMETHING, !=0, a, b, c);
2021-09-10 19:32:17 +02:00
Bram Matthys 7dac12e31e Get rid of RunHook2/3/4/5/6/etc and just have RunHook with __VA_ARGS__ 2021-09-10 19:27:18 +02:00
Bram Matthys 447555e044 More consts in stats.c 2021-09-10 15:07:17 +02:00
Bram Matthys 08a32429ff Update extban API to use more consts 2021-09-10 13:39:26 +02:00
Bram Matthys 66a51fb659 Massive conversions from 'char *' to 'const char *' and 'char **' to 'const char **' 2021-09-10 12:46:31 +02:00
Bram Matthys edfdfe4a03 Add HookAddConstString() and friends.
Also EfunctionAddPChar() -> EfunctionAddString(), and callbacks etc.
2021-09-10 11:59:14 +02:00
Bram Matthys 4a82b89793 Code cleanup in tkl.c: get rid of confusing 'whattodo' and use 'add'
which is 1/0 so that the meaning is straightforward.
2021-09-03 11:05:19 +02:00
Bram Matthys c4a4867ca5 More goto's make the world a better place.
Oh and also fix a memory leak in parse_extended_server_ban().
2021-09-03 08:06:03 +02:00
Bram Matthys 5b9c419041 Add parse_extended_server_ban(). This makes named extended server bans
working now (eg ELINE ~certfp:xyz etc).
Also fixes a crash due to an OOB read.
2021-09-02 17:01:20 +02:00
Bram Matthys 5154038d59 Code cleanup: replace "if(" with "if (" 2021-08-18 09:54:43 +02:00
Bram Matthys a43637d55d Add extban->is_banned_events which you need to set to indicate to
which BANCHK_* events you want to listen, eg BANCHK_JOIN, BANCHK_MSG.
You can use BANCHK_ALL to watch on all events.
Only BANCHK_TKL is not included there and needs an explicit
BANCHK_ALL|BANCHK_TKL.

The caller will now take care of BANCHK_* filtering so we won't
waste any CPU on calling an is_banned() function that isn't
interested at all in the event that we have.

Also, no longer require an extban->is_banned function, since some
extbans don't use it. This too saves useless calls.
2021-08-14 18:25:36 +02:00
Bram Matthys f23546b27c More conv_param() changes, the +3 rule changed, and matches the rest.
The .conv_param() now receives the ban minus the ~own-extban.
And it should also return the part minus the ~own-extban.

Changes to findmod_by_bantype():
1) Takes a string now, rather than a single char value,
   so it is ready for named extbans.
2) Second parameter added so you can easily jump to the remainder.
   Eg:
   extban = findmod_by_bantype(b->banstr, &nextbanstr);
   [..check if extban is non-NULL and then..]
   b->banstr = nextbanstr;
2021-08-14 08:57:33 +02:00
Bram Matthys 5269b647d5 Round three of extban API overhaul, this changes extban->conv_param().
More changes will follow related to that...
2021-08-13 17:59:45 +02:00
Bram Matthys b5d948c09c Round two of extban API overhaul, this changes extban->is_ok()
Also cleanup big blob op duplicate code in +beI handling in MODE.
2021-08-13 16:03:15 +02:00
Bram Matthys 98291c9f69 ExtBans API: Now we can get rid of the +3 everywhere in is_banned().
When extban->is_banned() is called the banstr now no longer points
to "~x:something" but to "something". This will be more useful later...
2021-08-13 14:39:34 +02:00
Bram Matthys bff6fdde6f Start of extban API recode. I created the current API in 2003 and..
well.. let's hope I have gained some good insights since then.. :D
2021-08-13 14:17:07 +02:00
Bram Matthys 48efe353af Newlog: when there are two clients involved with a clear issuer/target
relationship, make the issuer "client" (this was already so) and
the target is "target" (and no longer sometimes "victim").
For consistency, of course :D
2021-08-10 17:34:14 +02:00
Bram Matthys 4e5dd044f5 Require module header with version "unrealircd-6" now 2021-08-10 14:37:10 +02:00
Bram Matthys 532a9becda Massive renames of SSL/TLS and SSL to TLS. People should know the term by now :D 2021-08-10 09:07:32 +02:00
Bram Matthys 3832081eed Rename client->user->svid to client->user->account.
Just as a reminder: don't blindly assume that if anything is set here
that the user is logged in, there is IsLoggedIn(client) for that.
Reason: if the account name starts with a digit or is "*" then the
user isn't actually logged in ;)
2021-08-10 08:14:35 +02:00
Bram Matthys 88e9b51354 Newlog: now really finish server.c conversion. Yeah, there were more... 2021-08-09 11:59:39 +02:00
Bram Matthys 839367272a Rename $client.nuh to $client.details as it is generic detailed
client information and not necessarily nick!user@host in all cases.
2021-08-06 20:59:54 +02:00
Bram Matthys c22207c4ca Drop cf_ prefix from ConfigFile and ce_ prefix from ConfigEntry structs.
Also rename them to describe better what they do.

ConfigFile:
cf_filename -> filename
cf_next -> next
cf_entries -> items

ConfigEntry:
ce_fileptr -> file
ce_varlinenum -> line_number
ce_fileposstart -> file_position_start
ce_fileposend -> file_position_end
ce_sectlinenum -> section_linenumber
ce_varname -> name
ce_vardata -> value
ce_cond -> conditional_config
ce_entries -> items
ce_next -> next
ce_prevlevel -> parent

Also add doxygen docs for both structs.
2021-08-06 17:50:45 +02:00