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
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.
not always kicking in on *line either.
We now check for shuns/*lines in user_account_login(), so upon
SASL or NS IDENTIFY etc. This also means that the client could
now be killed in that function, so callers should take extra
care and take that into account. We check for IsDead() in our
calls now (if it's our client anyway).
Hopefully this doesn't break anything.........
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/.
* 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.
for the user. Otherwise with post-connect SASL authentication you will
have different login information on server X compared to server Y
(the server with the user on it was always correct, though).
Also, add a function called user_account_login() which is used by both
SVSMODE/SVS2MODE and SVSLOGIN to send ACCOUNT messages to the channel.
This too was missing for SVSLOGIN (post-authentication SASL).
For this fix to be 100% effective, you need 100% UnrealIRCd 5.
/** Calculate the cloaked host for a client.
* @param client The client
* @param curr The real host or real IP
* @param buf Buffer to store the new cloaked host in
* @param buflen Length of the buffer (should be HOSTLEN+1)
*/
void make_cloakedhost(Client *client, char *curr, char *buf, size_t buflen)
CAN_SEND_TO_USER rather than HOOKTYPE_PRE_USERMSG (which is now removed).
As for the numeric change: this makes it much easier for client devs.
You rarely need to differentiate in the client code between the various
causes. One only cares about detecting that the message was not sent and
that the user needs to be informed.
This replaces various NOTICEs, ERR_NOCTCP, ERR_NONONREG etc. with just the
new numeric 531, which is taken from InspIRCd. The syntax is:
:server 531 yourname targetname :reason for the block
This makes it similar to numeric 404 (ERR_CANNOTSENDTOCHAN) that is used to
indicate that a channel message was blocked.
For module devs, the new hook CAN_SEND_TO_USER prototype is:
int hooktype_can_send_to_user(Client *client, Client *target, char **text, char **errmsg, int notice);
You can replace the text via this, by setting *text in your function.
You can block the message, by returning HOOK_DENY. If doing so, then
you must also set *errmsg to an appropriate value.
Do not send any error message to the user! UnrealIRCd will take care of
sending the error message for you, if you set *errmsg.
Only if you need something special you could violate this rule, but
preferably not!
As you can see, CAN_SEND_TO_USER works just like CAN_SEND_TO_CHANNEL.
This so I - and others - don't constantly have to wonder whether the client
is called sptr, cptr or acptr in a simple routine.
Insane --> 212 files changed, 6814 insertions(+), 6945 deletions(-)
Couldn't just mass-replace of course since there are places where there
are multiple clients involved. So had to check each function.
Also renamed some 'acptr' to 'target' and such.
I will write a page with new style rules later.. but in short if there is
only 1 client involved it will now be called 'client'.
code changes in UnrealIRCd itself:
1) Clients are no longer freed directly by exit_client. Most fields
are freed, but 'sptr' itself is not, so you can use IsDead() on it.
2) exit_client now returns void rather than int
3) ALL command functions return void rather than int.
Of course this also affects do_cmd, command overrides, etc.
This is a direct consequence of the removal of 'cptr' earlier, as that
was used to signal certain things that are now no longer possible
(and it raises the question if things were always correctly signaled
in the first place, so may fix some bugs).
It also makes the code more resillient against cases where you forgot
to check if the client was freed. Still, you are encouraged to do an
IsDead(sptr) if you are calling functions that may kill clients,
such as command functions or things that may use spamfilter.
More changes will follow, such as the removal of FLUSH_BUFFER.
'sptr' is sufficient and in most cases the only one you should care about.
Should you need it, you can access sptr->direction in cases where you
need the old information (usually only for some sendto_* functions
and some protoctl checks), so 'cptr' was redundant too.
[!] This change likely introduces some bugs. This was many hours of work.
I only cut some corners in 4 functions, which will be fixed at a later
stage..... yes, more major changes to come.
On the plus side, I likely fixed some bugs in the process. Situations
where cptr vs sptr usage was incorrect. Eg using cptr->name (near server)
when sptr->name should be used (the actual source server), etc....
In such a case we refuse to run since the consequences are too big.
(Actually I may change the non-UTF8 channel warning to an error as well,
right now it isn't.. simply because I cannot read a certain setting)
From both the non-UTF8 channel and user warning/error, we now refer to:
https://www.unrealircd.org/docs/WebSocket_support#websockets-and-non-utf8
which contains a bit more detailed information as to the WHY.
This so we have a few simple concepts:
Client: this can be a user, server, or something unknown yet
Then the type of clients:
User: this is a user, someone with a nick name.
Server: this is a server
Etc.
as cptr->from is NOT (necessarily) the server where cptr is connected to.
So we now call it cptr->direction since it indicates the directly connected
server (or &me)... in other words: the direction of the client path.
aChannel to Channel, and some more. Third party module coders will
love this. But.. it makes things more logical and the doxygen output
will look more clean and logical as well.
(More changes will follow)
Bram Matthys