- Pekka
-New features TODO
-=================
-
- o Optimization in general. I have not focused to program optimized code
- in many circumstances. It has been more important to get this up and
- working. A lot must be optimized especially the ID cache. Instead of
- using lists some hash tables should be used. The searching by ID and
- such must be made a lot faster. If someone would like dedicate their
- efforts purely to generate optimized code I'd be appreaciated.
+TODO General
+============
o We should replace all short, int, long, unsigned short, unsigned int,
unsigned long with some pre-defined datatypes that really are what
what we could use or maybe SilcInt16, SilcUInt16 etc. Also, boolean
datatype should be defined.
- o Add boolean (or bool), typedef of unsigned char.
-
- o More platform supports should be added. The code is pretty much
- generic but there are some parts that require porting (SIM). Also,
- some support for different platforms is needed into configure.in.
- o SILC requires currently GCC to work because we use GCC specific
- compilation options. Generally any compiler that supports inline
- functions and can build shared libraries (for SIMs) should work.
- These cases should be included into configure.in.
+TODO In SILC Client Library
+===========================
- o Extended SIM (SILC Module) support. Currently only SILC Cipher API
- and SILC Hash API may be used as SIM's. What I have in mind is to
- have extended support for SIM's so that basically any SILC API could
- be used as SIM's. This would open tremendous possiblities but
- opens also issues on security that needs to be dealt with.
+ o TODO in commands (silc/local_command.c, lib/silcclient/command.c and
+ silc/silclient/command_reply.c):
- Some sort of SIM compilation environment should be defined so that
- the SIM's could use SILC specific symbols from the modules (which they
- cannot do currently). In the future modules could add new features
- to SILC easily with this support. I'm more thinking this from client's
- perspective to add new features to client (such as IRC support as SIM)
- but server should have the support as well. Anyhow, this is an
- interesting feature...
+ o Local command to handle private message keys is not done
+ o Local command to handle channel private keys is not done
+ o Local command to handle key agreement protocol is not done
+ o RESTART command is not implemented
- This maybe post 1.0 task - dunno.
+ o Client library crashes if for example server timeouts protocol
+ execution and disconnects the client. The client, on the other hand
+ may still assume that the connection is active, even after receiving
+ the EOF. Reason for this is that the clien library does not handle
+ the SilcSocketConnection reference counter at all. This must be
+ fixed.
- o SIM support for other platforms than just for Linux. Apache has
- example code (code that we could use directly pretty easily) for
- other platforms.
+ o Logic for handling multiple same nicknames for example in private
+ message sending. I guess the logic is done in server side but is
+ missing from client.
-TODO In SILC Client Library
-===========================
+ o I guess, public key authentication (when connecting to a server)
+ is not working currently. It is just matter of loading the keys
+ from file and using them (see corresponding code in server, it should
+ support public key authentication already).
o Non-blocking connection on the background must be stopped if some
other connection on same window has established. Now it is possible
we already have a working connection to some other place; things
goes bad.
+ o Add client library parameters or options that handle what kind of
+ messages the library should print out (using `say' client operation,
+ for example) and what is left for the application to print. The
+ appliation could for example set that it handles all command printing
+ but all error printing should be handled by the library, etc...
+ This is not a showstopper.
+
o Input line on UI is buggy. Cursor movement etc bugs. Too lazy to
fix it.
- o Logic for handling multiple same nicknames for example in private
- message sending. I guess the logic is done in server side but is
- missing from client.
- o I guess, public key authentication (when connecting to a server)
- is not working currently. It is just matter of loading the keys
- from file and using them (see corresponding code in server, it should
- support public key authentication already).
+TODO In SILC Server
+===================
- o Connection Authentication request resolving is missing and must be
- done. This is required by the protocol.
+ o TODO in commands (command.c and command_reply.c):
+ o RESTART is not implemented
+ o In servers all command reply funtions should still call the
+ pending command reply even if the reply was error. In client
+ it is not called but in server, I think, it must be called.
+ When implementing this check that all commands handle the
+ situation correctly when it is called as pending command
+ (it should most likely check that cmd->pending == TRUE/FALSE).
-TODO In SILC Server
-===================
+ o TODO in notify types (packet_receive.c):
+
+ o SERVER_SIGNOFF notify type is not implemented
o Packet processing can be made faster. All packet function in the
packet_receive.c has same prototypes. Instead of calling those from
huge switch() make a table of callback functions that can be called
directly by the packet type.
- o silc_server_send_key_agreement and silc_server_send_private_message_key
- are one and same function (also silc_server_send_private_message is
- almost same function). These should be unified to one generic named
- function and use that.
-
o DNS/IP lookup blocks the server. This must be fixed. Check the
resolver stuff (resolver(3), resolver(5)). Either we have to do the
own resolver stuff (through scheduler, if possible without writing
too much own stuff) or use threads.
- o Length of the packet processing timeouts needs to be checked whether
- they are too short or too long. I haven't really tested whether they
- are suitable. They should be tested on high load which I haven't done
- at all yet.
-
- o INVITE command must set the channel's invite list if channel is
- invite-only channel.
+ o Acceptance of incoming connections (client and server connections)
+ should be checked before key exchange protocol. Currently it is
+ checked at the authentication phase after KE, that is ok, but it should
+ be checked before starting KE, as well.
o Server says that it is able to listen on multiple ports but currently
that is bogus. It can, but internals are for single server.
- o Command flag usage in general is not implemented yet.
-
- o Client history must be implemented. Protocol says that server must
- keep history information about clients for some period of time.
-
o Protocol execution timeouts are hard coded, should be configurable.
o IP address fields in configuration file should accept mask format
o Connection classes should be actually implemented in serverconfig.c.
They can be defined but they are totally ignored currently.
- o Acceptance of incoming connections (client and server connections)
- should be checked before key exchange protocol. Currently it is
- checked at the authentication phase after KE, that is ok, but it should
- be checked before starting KE, as well.
-
TODO In SILC Libraries
======================
- o Rewrite the task system. I made it too complex and too "neat" and
- it really should be rewritten. We don't need priorities really, one
- priority is enough. This will simplify a lot the task system.
-
o Implement PFS (Perfect Forward Secrecy) flag in SKE (and in client and
server, actually). If PFS is set, re-key must cause new key exchange.
This is required by the SILC protocol.
o Re-key in general is actually missing (from everywhere) and must be done.
- o ID Cache expiry does not work.
-
o Compression routines are missing. The protocol supports packet
compression thus it must be implemented. SILC Comp API must be
defined. zlib package is already included into the lib dir (in CVS,
not in distribution), but it is not used yet, and it requires some
tweaking on the Makefiles (we want static lib not shared).
+ o Rewrite the task system. I made it too complex and too "neat" and
+ it really should be rewritten. We don't need priorities really, one
+ priority is enough. This will simplify a lot the task system.
+
o SIM support for SILC PKCS API needs to made so that they could be
used as SIM's. At the same time some work is required on prime
generation as the way it is done now sucks. Read from code for
before select() should probably be removed.
-Other Things TODO
-=================
-
- o Write manuals for server.
-
- o Write manuals for client.
-
- o Write SILC Library Reference manual. This would include all the SILC
- API's with simple examples how the functions are to be used. This is
- pretty easy to create by taking all the functions plus their comments
- from source/header files. However, same sort of reference manual
- should be written for client and server as well.
+TODO in the protocol before SILC 0.x
+====================================
+
+ o New commands and features in the commands
+ (draft-riikonen-silc-spec-xx.txt):
+
+ o Define GETKEY command to fetch the public key of a server
+ and/or a client in the SILC Network.
+ o Define SENDKEY command to send your public key to a client
+ in the network. Sending to the server must not be done due
+ to various security reasons (the server must not trust the
+ public keys blindly without third party verification; that's
+ why SENDKEY is not for servers).
+ o Define AWAY command to set the indication flag whether the
+ client is present or not. Do not save the away message to the
+ server though.
+ o Define the channel founder property to be permanent locally in
+ the server so that channel founder can regain its rights even
+ if it disconnects from the server. Thus, define a new command
+ or channel user mode that can be used to set the channel founder
+ passphrase or public key that can be used in the authentication
+ when regaining the founder rights.
+
+ o New packets and features in the packets
+ (draft-riikonen-silc-pp-xx.txt):
+
+ o Define the Private Message packet to include private message
+ flags and define the flags. The flags could indicate whether
+ the message is, for example autoreply or the receiver should not
+ reply to the private messages. What other flags?
+ o Define the Channel Message packet to include channel message
+ flags and define the flags. Actually the flags should be same
+ as for the private message flags. This way we can implement
+ for example the CTCP style ACTION (/ME command) messages.
+
+ o New features in the KE/auth protocol
+ (draft-riikonen-silc-ke-auth-xx.txt):
+
+ o Define group exchange support for the SKE so that the SKE
+ could be performed among more than two entities. This is not
+ a showstopper and may be defined later.
TODO After 1.0
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