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660 Commits

Author SHA1 Message Date
Bram Matthys e59cd278cd log { } now uses the new log system and is used for logging to disk,
snomasks, opers, global (remote), ..

For disk logs we currently ignore the sources and log everything.

NOTE: REHASH is untested and will memory leak for sure.
2021-08-07 13:04:07 +02:00
Bram Matthys b8837844fb Newlog: new config plan, ditch set::logging and use log blocks soon.
In this commit it is still called logx { }. Will merge them soon
into one log { } block.
2021-08-07 10:39:54 +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
k4be 50eaee19a7 Merge branch 'unreal60_dev' into unreal60_dev+watch 2021-08-06 15:25:13 +02:00
k4be 55a5574a4b Merge branch 'unreal60_dev' into unreal60_dev+watch 2021-08-06 15:23:37 +02:00
Bram Matthys f34d3bd861 Add set::logging block and the logging to snomask mapping.
Note that without such a block nothing will be sent to ircops at all
(anything that comes from unreal_log anyway).
In a later commit either a snomasks.default.conf will be added and/or
an internal default mapping.

This also moves the recursion trap to earlier in the logging code,
which has the side effect that debug traffic regarding snomasks is
no longer logged.
2021-08-06 15:19:36 +02:00
Bram Matthys 5b44baab1f ULOG_WARN -> ULOG_WARNING. Better be consistent. This was the only
ULOG_* level that used an abbreviated term.
2021-08-06 08:50:45 +02:00
Bram Matthys da07fbf28f Make Channel struct fixed-size rather than the name[1] trick.
Also, do some more validations on remote names now that it is fixed.
2021-08-05 16:40:26 +02:00
Bram Matthys 6bad375ad7 Rename channel->chname to channel->name. 2021-08-05 16:34:45 +02:00
Bram Matthys bda671fa14 Newlog: Add ULOG_DEBUG log level, and update reputation.c to use newlog. 2021-08-05 14:17:39 +02:00
Bram Matthys a19135d2a2 Guard against ULOG_INFO / LOG_INFO mixups :D
No such mistakes have been made yet, but.. bound to happen.
2021-08-05 12:15:55 +02:00
Bram Matthys 413def178c Add early loglevel to snomask code. Hardcoded atm. 2021-08-05 07:34:03 +02:00
k4be 5c9b7cf15f Add MONITOR command and fix numerous problems with WATCH. 2021-07-21 20:23:07 +02:00
k4be 7fab97d364 Add watch notification hook.
This will likely reduce performance, but this should not matter in modern times.
Also added flags to let modules know which one the entry belongs to, and what
to do with it.
Now modules should be able to add their own WATCH methods (like IRCv3 MONITOR),
or extend functionality to notify about other changes than the default log on,
log off and away statuses (like SETNAMEs).
2021-07-20 20:59:36 +02:00
k4be bcbcc10b9d Move watch code from core to module 2021-07-19 18:16:28 +02:00
k4be c97b9bb494 Move invites from core to module 2021-07-14 20:20:56 +02:00
Bram Matthys b871d2a177 Add log::type for 'json' (work in progress) 2021-07-12 17:24:16 +02:00
Bram Matthys f89348d26c Add JSON logger - initial work 2021-07-12 14:37:25 +02:00
Bram Matthys 68d172854d Remove IsARegNick() as we already have IsRegNick() 2021-06-26 11:19:47 +02:00
Bram Matthys 06c0a34ab1 Assume all services use account names (SVID), and drop suport for services
that only set +r on people. To my knowledge, practically no services are
out there anymore that do not use proper SVIDs (and that can link with
UnrealIRCd 5).
2021-06-26 11:14:52 +02:00
Bram Matthys 114d54ac61 Allow larger IDLEN for incoming, but keep sending current length.
I would like a bit more room for this in the future,
but until then we will keep sending UIDs of length 9 in
server to server traffic, so no change at all.
2021-06-25 12:17:33 +02:00
Bram Matthys e80c7b5b65 Add set::anti-flood options lag-penalty and lag-penalty-sec.
This also allows known-users to execute slightly more commands per second.

For people who want their trusted users/bots to allow even more commands
per second (eg 20cmds/sec) we now have a nice FAQ item that uses this:
https://www.unrealircd.org/docs/FAQ#high-command-rate
2021-06-23 16:21:06 +02:00
Bram Matthys 3fabc1ef5f New security-group::include-mask item so you can put clients into
security-groups based on masks too.
2021-06-23 13:22:17 +02:00
Bram Matthys b72ea1d945 Change allow block to use allow::mask instead of allow::ip / allow::hostname
We use 'mask' everywhere in the config except here, which is annoying
and also inflexible since mask has several nice options, see
https://www.unrealircd.org/docs/Mask_item

Users upgrading will receive a warning, and a reference to
https://www.unrealircd.org/docs/FAQ#allow-mask
but the IRCd will continue to boot (it is not an error).
2021-06-19 10:17:18 +02:00
Ramiro Bou 5d6738b3e8 Allowing multiple masks in "deny link" blocks. (#140) 2021-06-18 15:13:50 +02:00
Bram Matthys 3eb0bc24ea Add log::flags "flood" to log flood messages 2021-05-30 19:30:36 +02:00
Bram Matthys f8a732747b Get rid of mempool LOG_DBG which is never used 2021-05-30 19:27:35 +02:00
Bram Matthys 6f92233919 The set:anti-flood block has been redone so you can have different limits
for "unknown-users" and "known-users".
As a reminder, by default, "known-users" are users who are identified
to services OR are on an IP that has been connected for over 2 hours
in the past X days.
See https://www.unrealircd.org/docs/FAQ#new-anti-flood-block
for more information on the layout of the new block.

NOTE: This actual feature, the relase notes and the documentation
      are all work in progress.
2021-05-30 18:45:27 +02:00
Bram Matthys 36b9faa7cd Code cleanup: move flood control to generic system 2021-05-28 17:59:39 +02:00
Bram Matthys 191990b881 Code cleanup: at some places "ClientUser" was used instead of "User". 2021-05-28 15:26:58 +02:00
Bram Matthys 845a582d76 Add support for +draft/reply and load the module by default.
See https://ircv3.net/specs/client-tags/reply for the draft.

Can be used by clients to indicate to which message they are writing
a reply. This can be especially useful for bots, to indicate that
a response belongs to a user request, eg a !trigger.
2021-05-28 09:14:40 +02:00
Bram Matthys a85a38e69d Add the ability to SPAMFILTER message-tags.
The new target type is called 'T' and we match against "name=value"
of each message tag (or just "name" if it is without value).

Example: SPAMFILTER ADD -simple T kill 0 this_is_a_test +typing=active
(No this is not a suggestion :D)

This probably won't be used much at all, but it is good to have the
option available in case there is some massive problem,
especially since more message tags may pop up sooner or later.

Caveat: this is actually a bit slow as we may have to check multiple
message tags for a single line.
If there are zero message-tag spamfilters then we will automatically
short-circuit and save all this CPU, which will be the most common case.
2021-05-25 20:31:10 +02:00
Bram Matthys 74083d7440 In AddListItemPrio() explicitly set item->priority to prio. 2021-05-17 11:39:45 +02:00
Bram Matthys d7bf35e0d9 Set loop.ircd_terminating when IRCd is terminating (signal 15, /DIE, etc) 2021-05-17 11:08:54 +02:00
Bram Matthys deffc908e3 Document UnrealDB API and get rid of unrealdb_write_data/unrealdb_read_data.
API users must use specific size/type functions instead, otherwise it is
simply too dangerous / too easy to overlook issues.
2021-05-04 11:03:48 +02:00
Bram Matthys dde3e0ccb2 Add unrealdb and secrets API. Documentation and more information will
follow in later commits.
2021-05-03 15:07:10 +02:00
Bram Matthys 1f47cc7824 Support for dated log files such as log "ircd.%Y-%m-%d.log" { }
Suggested by Amiga600 in https://bugs.unrealircd.org/view.php?id=5784

This also fixes a bug with log::maxsize on Windows (cannot overwrite
existing file with .old).

It simplifies the logging code a little and makes it a tad more readable.

And it adds an unreal_strftime() function to make things easy.
2021-03-08 10:37:28 +01:00
Bram Matthys 636b068062 New option allow::global-maxperip, defaults to allow::maxperip+1.
Suggested by Jobe and PeGaSuS in https://bugs.unrealircd.org/view.php?id=5802
2021-03-07 11:30:02 +01:00
Bram Matthys dc40d27cd8 Move set::anti-flood::unknown-flood-* to set::anti-flood::handshake-data-flood
which is a new block, documented at:
https://www.unrealircd.org/docs/Set_block#set::anti-flood::handshake-data-flood
The reason for this is better naming and allowing to tweak ban-action.
2021-02-28 07:52:33 +01:00
Bram Matthys 1baf5f9f7d Show reputation score and some other info in "Client connecting"
notices to IRCOps and in ircd.log.
See the release notes for more details.

Module coders:
You can use HOOKTYPE_CONNECT_EXTINFO to add your own additional
information as well. See get_connect_extinfo() for inspiration.
Use nvplist_add() or nvplist_add_fmt() to easily add your info
to the list.

Module coders II:
Small note: this moves the sending of the far connect notice
to /under/ HOOKTYPE_REMOTE_CONNECT instead of /above/.
2021-01-31 18:30:49 +01:00
Bram Matthys 82da314cf4 Dev docs: document svid better
[skip ci]
2021-01-29 19:12:51 +01:00
Bram Matthys 3a922d6ed5 Disable handshake delay for users that are exempt from blacklist checking.
The handshake delay exists so results from DNSBL's can be checked before
the user is fully online. Whenever someone is exempt from DNSBL checking
it serves no purpose, so we mark it that the user has no handshake delay.
This will speed up connecting by up to 2 seconds (by default).
Also updated WebIRC example to suggest this now:
https://www.unrealircd.org/docs/WebIRC_block#UnrealIRCd-side
2021-01-17 08:25:14 +01:00
Bram Matthys fa15ec1bec Add default security-group "tls-users" and "tls-and-known-users" 2021-01-01 18:42:27 +01:00
Bram Matthys 53d23038e5 Support for security groups and new +b ~G:unknown-users:
* There are two security groups by default: known-users and unknown-users.
  See https://www.unrealircd.org/docs/Security-group_block
* New extended ban ~G:securitygroupname, with the typical usage being
  MODE #chan +b ~G:unknown-users, which will ban all users from the
  channel that are not identified to services and have a reputation
  score below 25.
2020-12-30 12:42:56 +01:00
Bram Matthys f494707a47 Doxygen: document list_for_each_entry with examples and
add 'channels' to the page as well.
2020-11-23 10:25:49 +01:00
Bram Matthys c369551721 Commit first 40% of Hook API Documentation in doxygen.
The remaining 60% consists of placeholders at the moment.

Note: if you are running git then don't try to live-reload these
changes, ircd must restart.
2020-11-08 16:16:59 +01:00
Bram Matthys 6778b3e26d Warn when SSL/TLS certificate is expired or expires soon (<7d).
Since an expired certificate usually means that users cannot connect
we will actively warn all IRCOps about this situation twice a day.
2020-10-11 15:00:09 +02:00
Bram Matthys 8619d1e763 Add optional allow::options::reject-on-auth-failure, as requested
by armyn in https://bugs.unrealircd.org/view.php?id=5769.

The default behavior in 5.x is to continue matching:
allow { ip *@*; class clients; maxperip 2; }
allow { ip *@*; password "iwantmore"; class clients; maxperip 10; }
This so users who provide a password get additional rights,
such as a higher maxperip or a different class, etc.
If the user connects without a password then we simply continue
to the next block and use the general block with only 2 maxperip.

However, some people want to use passwords to keep other users out.
That is entirely understandable as it is an 'allow block' after all.
For example:
allow { ip *@*; class clients; maxperip 2; }
allow { ip *@*.nl; password "tehdutch"; class clients; maxperip 2; options { reject-on-auth-failure; } }
In this case anyone without the correct password will be rejected access.
2020-10-11 09:24:11 +02:00
Bram Matthys 578f8f248c Warn user when undocumented set::ssl::dh / set::tls::dh is present.
That option specified a Diffie Hellman parameter file. Since
UnrealIRCd 5.0.0 we no longer process this option.
This option has never been documented in the wiki docs.
We prefer and use ECDHE/EECDH with SSL_OP_SINGLE_ECDH_USE since 2015
to provide Forward Secrecy in SSL/TLS. And indeed, by now in 2020,
any properly maintained software uses it and old DH(E) usage has
fallen to less than 1%.

What this patch does is remove the unused code (since Dec 2019) and
show a warning if you have a ::dh config directive, so that at least
you are informed that it is unused/ignored. Since it was undocumented
it probably hardly affects anyone, but still, it is proper to inform.
2020-09-12 09:38:17 +02:00
Bram Matthys 3acf71458d Module coders: Add CAP_INVERT option. Patch from k4be. 2020-05-25 14:17:22 +02:00