[silc.git] / CHANGES

Tue Sep  4 22:31:28 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added public key authentication support to OPER and SILCOPER
          commands in the client library.  Affected file is
          lib/silcclient/command.c.

Tue Sep  4 12:39:17 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Changed the get_auth_methdod client operation to be asynchronous.
          It can be async if the application resolves the authentication
          method from the server during the negotiation.  Added new
          SilcGetAuthMeth completion callback that the application will
          call after resolving the authentication method.

          Added function silc_client_request_authentication_method that
          the application can use to resolve the authentication method
          from the server.  Added also SilcConnectionAuthRequest callback
          that the library will call after the server has replied.  The
          application can call this function if it does not know the
          current authentication method.

          Affected files are lib/silcclient/client.c and 
          lib/silcclient/silcapi.h.

        * The Irssi SILC client now automatically resolves the authentication
          method incase any configuration information is not present (and
          currently there never is).  The affected file is
          irssi/src/silc/core/client_ops.c.

        * Fixed public key authentication from the client library.
          Affected file lib/silcclient/protocol.c.  Changed also the
          protocol specification about the public key authentication in
          the connection authentication protocol.  The actual data to be
          signed is now computed with a hash function before signing.

        * Fixed the public key authentication from the server as well.
          Affected file silcd/protocol.c.

        * Removed the mlock()'s from the memory allocation routines.
          Affected file lib/silcutil/silcmemory.c.  The ./configure does
          not check anymore for the mlock().  Affected file is
          configure.in.pre.

        * Fixed USERS command in server to allow the execution of the
          command for private and secret channels if the client sending
          the command is on the channel.  Affected file silcd/command.c.

        * Fixed silc_client_get_clients_local to return the clients
          count correctly.  It could return wrong value.  Affected file
          lib/silcclient/idlist.c.

Mon Sep  3 20:09:59 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed the lib/silcmath/mpi/mpi.h to always use 32-bit data
          types.  The assembler optimizations seemed not to like 64-bit
          data types.  The assmebler optimizations thus are now enabled
          also for BSD systems as opposed to only enable them for Linux.

        * Do not check for threads at all on BSD systems.  Affected
          file configure.in.pre.

        * Removed -n and -h options from the Irssi SILC Client since
          they are not used in silc.

        * Fixed the prime generation to assure that the first digit
          of the generated random number is not zero since our conversion
          routines does not like number strings that starts with zero
          digit.  If zero digit is seen the random number is regenerated.
          This caused some corrupted RSA keys when the zero first digit
          was met.  Affected file lib/silcmath/silcprimegen.c.

Sun Sep  2 17:17:24 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed WIN32 configuration in the ./configure script.
          Fixed to include xti.h on environments that has it.
          Patches by Carsten Ilchmann and andrew.

Sat Sep  1 00:29:33 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Changed the silc_id_create_client_id to be collision
          resistant.  It is now assured that there cannot be created
          two same client ID's.  I suspect that some weird bugs in 
          the server were actually caused by duplicate Client IDs.
          Affected file silcd/serverid.[ch].  A router receiving
          new ID now also assures and informs the sending server
          if the ID caused collision.

        * Changed the silc_id_create_channel_id to also assure that
          there are no collisions.

Wed Aug 29 17:55:01 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Statement about ignoring the Mutual Authentication flag when
          performing rekey with PFS was a bit misleading.  It is ignored
          if it was set in the initial negotiation, it cannot be even
          set in the rekey.  Fixed in the ke-auth draft.  Started the
          new versions of the protocol drafts in the doc/.

Sun Aug 26 14:59:15 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed a bug in silc_client_command_identify_save when saving
          new channel information.  The channel name was no duplicated
          and caused crash on exit.  Affected file is
          lib/silcclient/command_reply.c.

Fri Aug 17 23:07:45 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed the getkey command handling in the server.  Send just
          empty OK reply to the sender if the key could not be fetched
          (but everything else was ok, like the key just was not available).
          Changed the public key parameter to optional in the protocol
          specs so that empty OK reply can be sent.  Affected file
          silcd/command.c.

          Added a message to Irssi SILC client to tell to user if the
          server did not return a public key.

Tue Aug 14 07:29:27 CEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed a channel key regeneration bug.  It registered new
          timeout tasks exponentially until all system resources were
          used.  Affected file silcd/server.c.

Sun Aug 12 20:48:14 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added the SILC Document generator to the scripts/silcdoc.
          It can be used to generate the Toolkit Reference Manual out
          of the source tree.  Internally it will also use the RoboDoc
          generator now imported in util/robodoc.

Sun Aug 12 12:28:17 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added couple of return's in rekey protocol if error orccurred
          during the protocol.  The execution must be terminated.
          Affected file silcd/protocol.c.  Also, terminate the protocol
          always with timeout.

Sat Aug 11 12:36:02 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * The client's Client ID was created initally from the wrong
          nickname (it could have been in format nick@host) in the
          silc_server_new_client.  Affected file silcd/packet_receive.c

Sat Aug 11 00:29:57 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added some SILC_LOG_ERROR's to various error conditions
          if client could not be added to ID cache.  Affected files
          silcd/packet_receive.c and silcd/server.c.

        * When client's sock->user_data is freed, NULL also the 
          client->router and client->connection pointers.  Added check
          for these pointers being NULL to various places around the
          code.  Affected file silcd/server.c.

        * Added client->data.registered == TRUE checks to various
          places around the code to assure that unregistered client's
          are not handled when it is not allowed.  Affected file
          silcd/server.c.

        * Added `bool registered' fields to all 
          silc_idlist_[server|client]_get_* routines to indicate whether
          the fetched client needs to be registered or not.  Affected
          file silcd/idlist.[ch].

        * Add your own entry as registered to the ID cache in the
          server.  Affected file server.c.

        * Fixed a bug in silc_server_new_server.  The SilcServer was
          set as the new server's context instead of SilcServerEntry.
          This naturally caused some weird bugs.

Thu Aug  9 18:28:37 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not delete the channel rekey task when adding it
          for in silc_server_create_channel_key.

        * Changed the silc_server_create_channel_key to return
          TRUE or FALSE to indicate the success of the channel key
          creation.

Thu Jul 26 11:32:31 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed MSVC++ project files and added missing files to
          Makefiles under win32/.

Wed Jul 25 18:43:54 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not add TCP_NODELAY flag if the operating system
          does not have it defined.  Affected files are
          lib/silcutil/[unix/win32]/silc[unix/win32]net.c.

        * Fixed buffer overflow from Irssi SILC Client.  Affected
          file irssi/src/fe-common/core/themes.c.

        * Fixed double free in client library in the file
          lib/silcclient/client.c when disconnecting from server.

        * Applied double free patch from cras to Irssi SILC client.
          Affected files irssi/src/core/[modules/expandos].c

        * Fixed the disconnection handling to Irssi SILC Client.
          The application must call silc_client_close_connection
          in ops->connect client operation in case of failure of
          the connection.  Affected file is
          irssi/src/silc/core/client_ops.c.

        * Do not set sock->protocol to NULL in the function
          silc_client_close_connection after executing the protocol's
          final callback since the sock might not be valid anymore.
          Affected file lib/silcclient/client.c.

Wed Jul 25 16:04:35 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not enable SILC_THREADS if the linking with libpthread
          did not happen.  Affected file configure.in.pre.

        * Added notion to protocol specification that server must
          verify the sent authentication payload with CMODE when
          setting the channel founder key.  Implemented it to the
          server.  Affected file silcd/command.c.

Mon Jul 23 18:31:43 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added _EXTRA_DIST SILC distribution variable to the
          distributions file.  It is used to conditionally add extra
          files or directories to the specific distribution.  Affected
          files ./prepare, Makefile.am.pre and distributions.

          Removed the `_' from the start of the distribution names.
          It is redundant.

        * Added README.WIN32 for instructions to compile the Toolkit
          under WIN32.

Mon Jul 23 10:12:37 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed a double free in disconnection in the server.  Affected
          file is silcd/server.c.

        * Fixed the lib/silcske/groups.c to work now also with GMP
          MP library.  The string conversion did not work when using
          specific base and the base is indicated in the string as well.

        * Created win32/ directory which now includes MSVC++ specific
          stuff so that toolkit (DLLs) may be compiled with MSVC++.
          It will appear only in the toolkit distribution

Sun Jul 22 19:40:30 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Changed the key material distribution function in case when
          the hash output is too short.  The data is now concatenated
          a bit differently than it used to.  Made the change to the
          SKE protocol specification.

        * Added better GMP detection to configure.in.pre.  A patch
          by salo.

Fri Jul 20 13:16:00 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed a minor bug in SKE that might cause some problem on
          some platforms.  Affected file lib/silcske/silcske.c.

        * Added the cookie checking for initiator in the SKE.  It checks
          that the responder returns the sent cookie unmodified.  The
          affected file is lib/silcske/silcske.c.  Added new SKE
          error type INVALID_COOKIE that can be sent during the
          negotiation.  Fixed some memory leaks as well.

        * Added the "invalid cookie" error message to Irssi SILC client's
          message formats.

Thu Jul 19 21:44:31 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added `task_max' field to the SilcClientParams to indicate
          the maximum tasks the scheduler can handle.  If set to zero,
          default values are used.  Affected file lib/silcclient/silcapi.h.

        * Fixed memory leaks in silc_client_close_connection.  Affected
          file lib/silcclient/client.c.

        * Added silc_client_del_client_entry to client library to free
          all memory of given client entry.  Affected file is
          lib/silcclient/idlist.[ch].

        * Added new functions silc_client_del_channel and
          silc_client_del_server to delete channel and server entries.
          Affected file lib/silcclient/[silcapi.h/idlist.c].

        * Removed silc_client_del_client_by_id from silcapi.h.

        * Fixed the INFO command to return the server's own info
          correctly when querying by Server ID.  Affected file is
          silcd/command.c.

Thu Jul 19 14:47:30 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Removed the non-blocking settings in WIN32 code in the
          silc_sock_[read/write] and added SleepEx instead.  Affected
          file lib/silcutil/win32/silcwin32sockconn.c.  The availability
          of input data is now checked with FIONREAD and ioctlsocket.

Wed Jul 18 18:34:01 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Call silc_schedule_task_del_by_context in the 
          silc_protocol_cancel instead of silc_schedule_task_del_by_callback.
          Affected file lib/silccore/silcprotocol.c.

        * Call silc_protocol_cancel for active protocols in the
          silc_server_close_connection if the funtion
          silc_server_free_sock_user_data has not been called.
          Affected file silcd/server.c.

        * Generic tasks cannot be deleted using the del_by_fd
          task deleting function since generic tasks does not match
          any specific fd.  Affected file lib/silcutil/silcschedule.[ch].

        * Added a notion to SILCOPER help file that the SILCOPER works
          only on router server, not on normal server.

Wed Jul 18 09:40:04 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added for WIN32 support for the new scheduler as well.
          Affected file lib/silcutil/win32/silcwin32schedule.c.

        * Fixed the SHA1 implementation to work on various platforms.

Tue Jul 17 23:04:10 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Rewrote the SILC Scheduler entirely.  Removed the old SILC Task
          API.  It is part of the scheduler now.  Everything else is
          as previously but some functions has changed their names.
          Checkout the lib/silcutil/silcschedule.h for the interface.
          Updated all applications to use the new interface.  Affected
          files are lib/silcutil/silcschedule.[ch].

Tue Jul 17 16:53:30 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Found a bug in the SKE implementation.  The HASH value,
          specified by the protocol, was not computed correctly.  The
          public key of the responder was not added to the computation
          even though it is mandatory.  Affected file lib/silcske/silcske.c.
          This unfortunately causes incompatibilities with older
          clients and servers.

        * Added WIN32 specific network init and uninit functions:
          silc_net_win32_init and silc_net_win32_uninit to init and uninit
          the Winsock2.  Affected file lib/silcutil/silcnet.h and
          lib/silcutil/win32/silcwin32net.c.

        * Set the socket always to nonblocking mode on WIN32 after
          reading data or writing data.  Affected file is
          lib/silcutil/win32/silcwin32sockconn.c.

Mon Jul 16 22:55:26 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed various compilation problems under WIN32.  Affected
          files lib/silcutil/win32/silcwin32thread.c and
          lib/silcutil/win32/silcwin32schedule.c.

        * Removed all _internal.h #includes from public header
          files.  Internal headers must never be included from
          public headers.

          Removed also the lib/silcske/payload_internal.h file.

        * All include files that may be needed (public and some others
          included by the public headers) by application developers are
          now copied to the ./includes directory.  It does not copy any
          internal headers.  Affected file Makefile.defines.pre and all
          Makefile.am's under lib/ and subdirs.

Thu Jul 12 17:49:31 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not change the ~/.silc directory's permissions automatically.
          Affected file irssi/src/silc/core/clientutil.c.

Thu Jul 12 10:18:40 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not cancel the protocol in silc_server_close_connection
          it might cause recursion.  Now cancelled in the function
          silc_server_free_sock_user_data.  Affected file silcd/server.c.

        * Fixed the silc_server_remove_clients_by_server to regenerate
          the channel keys correctly finally.  Added also new function
          silc_server_remove_clients_channels to actually do it.
          Affected file silcd/server.c.

        * Fixed the silc_server_new_channel to not crash by giving
          wrong router to the new channel.  Affected file is
          silcd/packet_receive.c.

Wed Jul 11 18:31:57 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added SilcClientParams structure to the lib/silcclient/silcapi.h
          which is given as argument to the silc_client_alloc now.
          It can be used to configure the client and set various parameters
          that affect the function of the client.

        * The USERS command in server did not check whether the channel
          is private or secret.  Affected file silcd/command.c.

        * Added new argument to the USERS command in protocol specification.
          The USERS command now can take the channel name as argument
          as well.  Added support for this in client and server and
          updated the protocol specs.

        * Completed the GETKEY command in client. It can be now used
          to fetch also servers public key not only some clients. 
          Affected files lib/silcclient/command[_reply].c.

        * Added silc_client_get_server to return server entry by the
          server name.  Affected files lib/silcclient/silcapi.h and
          idlist.c.

        * Redefined the IDENTIFY command in protocol specification to be
          more generic.  It now can be used to query information about
          any entity in the SILC Network, including clients, servers and
          channels.  The query may be based either the entity's name
          or the ID.  Added support for this in both client and server.

          Affected files silcd/command.c and lib/silcclient/command.c
          and command_reply.c.

        * Optimized the WHOIS and WHOWAS commands in the server. Removed
          the _from_client and _from_server functions.  Affected file
          silcd/command.c.

        * Added silc_client_get_channel_by_id_resolve to the file
          lib/silcclient/silcapi.h to resolve channel information by
          its ID.  Added also silc_client_get_channel_by_id that
          does not resolve it from the server.

Tue Jul 10 18:05:38 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added SilcServerEntry context into the client library
          to represent one server.  The INFO command now allocates
          these to save the resolved server info.  For now on the
          client library will also keep information about servers,
          connected and resolved with INFO.

          The INFO command now allocates the SilcServerEntry context
          and saves the server info there.  The COMMAND_REPLY in
          the INFO now returns the parameters to application in 
          same order as defined in the protocol specification.

          The entries are cached in the client->server_cache.

        * The INFO command is now issued after received the Client ID
          from the server.  Affected file lib/silcclient/client.c.

        * The CMODE_CHANGE notify may now return also an SilcServerEntry
          to the application as the mode changer might be server.
          It is guaranteed that NULL is not returned anymore to the
          application.  Affected file lib/silcclient/client_notify.c.

          The ID Type is now also passed to the application so that
          it can check whether the returned entry is SilcClientEntry
          or SilcServerEntry.

          Added new function silc_client_get_server_by_id to return
          the server entry by ID.  Affected files are the
          lib/silcclient/silcapi.h and lib/silcclient/idlist.c.

        * Do not create the channel in the Irssi SILC Client when issuing
          the JOIN command but when received the sucessful JOIN command
          reply.  Otherwise the channel might get created even though we
          could not join it.  The Affected file is
          irssi/src/silc/core/[silc-channels.c/client_ops.c].

        * Fixed a channel joining bug in router.  The router must also
          check the channel modes, invite and ban lists etc. when serving
          the JOIN command sent by normal server.  Affected file is
          silcd/command.c.  The router now resolves the client's 
          information from the server who sent the JOIN command if it
          does not know it, and processes the JOIN command only after
          that.

        * Changed the SilcCommandCb to take new argument; void *context2.
          Affected file lib/silccore/silccommand.h

          The second argument in the command callbacks in the server now
          includes the SilcServerCommandReplyContext if the command was
          called as pending command callback from the command reply.
          Otherwise it is NULL. When called as pending the status of the
          command reply will be checked and if it was erronous the
          error will be sent to the original sender of the command.
          This way the client always receives the error messages even
          though the server was actually the one who received the error
          when it resent the command to router, for example.  Affected
          files silcd/command[_reply].[ch].

        * Fixed sending WHOWAS command's error message to client if
          the requested client could not be found.  It was missing.
          silcd/command.c.

        * Changed the CMODE and CUMODE commands reply arguments in the
          protocol specification.  The Channel ID is now sent in both
          of the commands to identify the channel.  Implemented this
          new feature to the client and server.  Affected files
          lib/silcclient/command_reply.c and silcd/command.c.

        * Made better checks for invite and ban lists in the JOIN
          command in server.  Affected file silcd/command.c.

Mon Jul  9 18:28:34 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * The server now performs the incoming host IP/DNS lookup
          using the silc_socket_host_lookup and thus does not block
          the server anymore.  Affected file silcd/server.c.

        * Completed the multi-thread support for SILC Scheduler in
          the lib/silcutil/silcschedule.c.

        * Fixed the configure.in.pre to detect the pthread correctly
          on various systems.

        * Fixed a deadlock in silc_task_queue_wakeup in the file
          lib/silcutil/silctask.c.

Mon Jul  9 13:40:03 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added new function silc_schedule_wakeup that is used in
          multi-threaded environment to wakeup the main thread's
          schduler. It needs to be used when a thread adds a new task
          or removes a task from task queues. After waking up, the
          scheduler will detect the task queue changes. If threads
          support is not compiled in this function has no effect.
          Implemented the wakeup mechanism to both Unix and WIN32
          systems.  Affected files are lib/silcutil/silcschedule.[ch],
          lib/silcutil/unix/silcunixschedule.c and the
          lib/silcutil/win32/silcwin32schedule.c.

        * Added new function silc_task_queue_wakeup to wakeup the
          scheduler by the specified task queue.  Affected file
          lib/silcutil/silctask.[ch].

        * The silc_socket_host_lookup_start now wakes up the scheduler
          after adding the timeout task.  Affected file is
          lib/silcutil/silcsockconn.c.

        * The silc_socket_host_lookup is synchronous now if the threads
          support is not compiled in.  However, the callback is still
          called asyncronously through the scheduler, anyway.  Affected
          file lib/silcutil/silcsockconn.c.

Mon Jul  9 00:24:45 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added new function silc_socket_host_lookup to perform
          asynchronous IP and FQDN lookups for the socket connection.
          Affected files lib/silcutil/silcsockconn.[ch].

Sun Jul  8 18:44:53 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added SILC_MUTEX_DEFINE to define the mutex on environments
          that may or may not compile the mutex support in.
        
          Changed the silc_mutex_alloc interface. It allocates the
          mutex now to the sent pointer and returns TRUE or FALSE.

          Affected file lib/silcutil/silcmutex.h.

        * Wrote the SILC Task Queue interface to support multi-threads.
          Affected file lib/silcutil/silctask.[ch].

        * Wrote the SILC Scheduler to support multi-threads.  Affected
          file lib/silcutil/silcschedule.c.

Sun Jul  8 11:16:01 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Implemented the SILC Mutex API and SILC Thread API for WIN32
          in lib/silcutil/win32/.

Sun Jul  8 00:18:15 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Defined SILC Mutex API and SILC Thread API and implemented
          them for Unix.  Affected files are
          lib/silcutil/silcmutex.h, lib/silcutil/silcthread.h,
          lib/silcutil/unix/silcunixmutex.c and
          lib/silcutil/unix/silcunixthread.c.

Sat Jul  7 14:40:31 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed the silc_server_remove_clients_by_server's channel
          key re-generation.  The hash table handling was incorrect
          and would not work with many channels.  Affected file is
          silcd/server.c.

        * Fixed some memory leaks around the server code.

        * Rewrote the silc_server_get_users_on_channel to support IPv6
          based Client ID's.  Affected file silcd/server.c.

        * Defined the SILC_MESSAGE_FLAG_SIGNED to the protocol
          specification.  However, a separate document must be written
          to define the detailed signing procedure and the payload
          associated with the flag.  Defined the flag to the
          lib/silccore/silcchannel.h as well.

Fri Jul  6 18:26:31 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Changed the dynamic tables to static size tables in the
          lib/silccrypt/silchmac.c.

        * Removed GCC dependencies from the code.  A patch by cras.

Fri Jul  6 09:39:35 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not show the error "Error receiving packet bla bla"
          in server if it really was not an error (-2 means that reading
          is pending).  Affected file silcd/server.c.

Thu Jul  5 21:22:32 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed a possible crash in silc_server_remove_clients_by_server
          in silcd/server.c.  Fixed there also some memory leaks.

        * Fixed the silc_idlist_replace_client_id.  It could replace
          wrong key in the hash table.  Affected file silcd/idlist.c.

        * Do not check whether there are global users on the channel
          if the channel->global_users is FALSE.  Affected functions
          silc_server_remove_from_one_channel and
          silc_server_remove_from_channels in silcd/server.c.  Also,
          do not check if the removed client is local as we can be
          sure that global client was not removed from the channel
          and checking for global users is not needed.

        * The silc_server_remove_clients_by_server now re-generates
          the channel keys correctly for those channels that had
          clients removed from them.  Affected file silcd/server.c.

Tue Jul  3 11:39:20 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Found the reason of random crashes in the server.  We weren't
          ignoring the SIGPIPE signal (which can be sent in write())
          and it crashed the server.  Affected file silcd/silcd.c.

Fri Jun 29 20:05:25 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Assure that sock->user_data is not NULL in the function
          silc_server_packet_send in silcd/packet_send.c.

        * Disconnect the remote connection if it could not be added
          to any ID lists in the server.  The affected file is
          silcd/server.c.

        * Check in silc_server_packet_send[_real/dest] that the
          socket is not disconnecting and ignore the data if it is.
          Affected file silcd/packet_send.c.

        * Define inline to __inline on native WIN32 compilation.
          Affected file includes/silcwin32.h.

        * Added some explicit type casts for inline code since MSVC
          require them.  Affected files lib/silcutil/silcbuffer.h,
          lib/trq/silcdlist.h and lib/trq/silclist.h.

        * Print warning in log files from now on if the packet
          decryption fails.  Affected file silcd/server.c.

Thu Jun 28 21:30:39 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Changed the `say' client operation's interface to accept
          new `type' argument to indicate the type of the message sent
          by the library.  The application may filter the library's
          messages according the type.  The affected file is the
          lib/silcclient/silcapi.h.

        * Added two new functions to lib/silcclient/silcapi.h:
          silc_client_del_client and silc_client_del_client_by_id.
          Affected file lib/silcclient/idlist.c.

        * Moved the clientincludes.h from includes/ to silc/ and
          serverincludes.h from includes/ to silcd/.

        * The modes for the CMODE and CUMODE are now passed as
          uint32 for application with COMMAND_REPLY.  The affected
          file is lib/silcclient/command_reply.c.

Wed Jun 27 22:24:47 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * /WHOIS without arguments shows client's own information.
          Affected file lib/silcclient/command.c.

        * Changed PING to not accept any arguments.  The specs
          says that client can ping only the connected server so
          requiring an argument is not needed.  Affected file is
          lib/silcclient/command.c.

Wed Jun 27 00:10:33 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Fixed a fatal bug in private message sending and reception
          encryption and decryption when using private message keys.
          The implementation was incorrect and did not follow the
          specification.  It causd that some of the message were
          lost since it did not use the sending and receiving keys
          as the protocol suggests.  This has been fixed and will cause
          incompatibilities with older clients when sending private
          message encrypted with private message keys.  Affected files
          lib/silcclient/client_prvmsg.c, lib/silcclient/client_keyagr.c
          and various other in Irssi SILC Client.

          Added `responder' boolean argument to the functions
          silc_client_add_private_message_key[_ske] to indicate when
          the key is added as responder or initiator of the key
          negotiation.

Tue Jun 26 19:23:07 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Removed the silc_ske_check_version function and created
          a SilcSKECheckVersion callback.  Added also a function
          silc_ske_set_callbacks that is now used to set all SKE
          callbacks.  The callback functions are not given to
          the SKE functions anymore, but this function is used to
          set the callbacks.

        * Fixed the WIN32 DLL generation in lib/Makefile.am.pre.

        * Added `silc_version' argument to the silc_client_alloc
          to define the version of the application for the library.
          The library will use the version string to compare it
          against the remote host's (usually a server) version
          string.  Affected file lib/silcclient/silcapi.h

        * Added the KE protocol context to Key Agreement context
          in client library so that we can abort the SKE if it
          is in process when we get timeout.  Affected file is
          lib/silcclient/client_keyagr.c.

        * Do not resolve the client ID forever if it returns in the
          first time that such client does not exist.  This was done
          for example with private message.  Affected file is
          lib/silcclient/client_prvmsg.c.

Mon Jun 25 21:42:51 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not add regex.h for WIN32.  The affected file
          includes/silcincludes.h.

        * Added WIN32 DLL generation to lib/Makefile.am.pre.  It might
          not work yet 100%.  It generates the DLL's automatically
          when compiling with --with-win32 under cygwin.

Sun Jun 24 19:49:23 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * lib/contrib/regex.c is not compiled on WIN32.

        * Added silc_net_get_socket_opt function to the
          lib/silcutil/silcnet.h.

        * Added includes/silcwin32.h for WIN32 specific includes
          and definitions.

        * Do not use ptime structure or any of the posix process
          functions on WIN32 in lib/silccrypt/silrng.c.

        * Added silc_gettimeofday to provide generic function
          for struct timeval on all platforms.  Added the function
          to lib/silcutil/silcutil.h.

Sun Jun 24 12:19:52 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Moved the lib/silccore/silcsockconn.[ch] to the utility
          library as they clearly belong there.  As a plus side we
          can make the actual socket connection routines platform
          specific.

          Added also new generic function silc_socket_read and
          silc_socket_write (that used to be silc_packet_[read/write].
          The implementation of these are platform specific.

        * Added WIN32 specific routines of silc_socket_[read/write]
          to lib/silcutil/win32/silcwin32sockconn.c.

Sat Jun 23 16:01:00 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Added preliminary support for native WIN32 compilation under
          cygwin (using the -mno-cygwin option for GCC) to the
          ./configure.in.pre.  The --with-win32 now prepares the
          compilation for native WIN32.

        * Rewrote the SILC Scheduler interface in the file
          lib/silcutil/silcschedule.h.  The scheduler is now context
          based and does not have anymore any global static scheduler.
          Moved the Unix scheduler to the lib/silcutil/unix/ directory
          and created lib/silcutil/win32 directory for WIN32 based
          scheduler.

        * Added Unix specific network routines to the
          lib/silcutil/unix/silcunixnet.c and the old
          lib/silcutil/silcnet.c includes now only generic routines.

          Added WIN32 specific network routines to the
          lib/silcutil/win32/silcwin32net.c.

        * Added Unix specific utility functions from the
          lib/silcutil/silcutil.c to lib/silcutil/unix/silcunixutil.c.

        * Added WIN32 SILC Scheduler to the file
          lib/silcutil/win32/silcwin32schedule.c. The code is of course
          untested.

Fri Jun 22 10:44:14 EEST 2001  Pekka Riikonen <priikone@silcnet.org>

        * Do not handle JOIN notify in the server if the target client
          is not registered (idata->registered == FALSE).  The affected
          file is silcd/packet_receive.c.

        * Update the nickrec->founder in event_cumode in the Irssi SILC
          client.  Affected file irssi/src/silc/core/silc-channels.c.

        * Fixed the CUMODE_CHANGE notify handling in the server when
          server and router are announcing their clients on channels.
          Now the mode changes are saved and notified correctly.  The
          affected file is /silcd/packet_receive.c.

        * Fixed silc_idlit_replace_[server/client/channel]_id functions.
          They really did not replace the cache entry in the ID Cache.
          Now they do that.  Affected file silcd/idlist.c.

        * Fixed the KICK notify handling in the Irssi SILC client to
          update the channel records so that the kicked client does not
          appear to be on the channel.  The affected file is 
          irssi/src/silc/core/silc-channels.c.

        * Always update the conn->current_channel when executing command
          on a channel.  Affected file irssi/src/silc/core/silc-servers.c.

        * Fixed the KILL notify handling in Irssi SILC client to remove
          the killed client on all channels.

Thu Jun 21 17:10:08 CEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the silc_parse_command_line to remove extra spaces
          from the start and end of the arguments.  Affected file is
          lib/silcutil/silcutil.c.

        * Cancel and free any active protocol in the function
          silc_server_close_connection.  Affected file silcd/server.c.

        * Cancel and free any active protocol in the function
          silc_client_close_connction.  Affected file is
          lib/silcclient/client.c.

        * Do not execute the KILL command for clients that are in
          history (ie. they are not in the network).  Affected file is
          silcd/command.c.

        * Fixed KILL notify handling, client does not crash anymore.
          Affected file irssi/src/silc/core/silc-channels.c.

        * Reduced the default packet buffer size from 2048 to 1024 in   
          lib/silccore/silcpacket.c.

        * Added SILC_SKE_STATUS_FREED SKE status type and a reference
          counter to the SKE context that is incresed when the SKE library
          performs async operation outside the library.  If the outside
          process frees the SKE context and FREED status will be set 
          and the library will detect after the sync operation that the
          libary is freed.  The affected files are
          lib/silcske/silcske[_status].[ch].

        * Resolve the client entry information in the function
          silc_client_channel_message to assure that NULL pointer is not
          passed as client entry to the application. */

        * Fixed the task timeout calculation to assure that there is
          never negative timeouts.  The affected file is 
          lib/silcutil/silcschedule.c.

        * Fixed the channel user mode notification sending in server.
          It was sent point-to-point to the router (or to server by router)
          but it needs to be destined to a channel.  The routines now
          supports sending the channel user mode notifys to the channels
          when announcing clients and channels.  Affected files are
          silcd/server.c and silcd/packet_receive.c.

        * Fixed the CHANNEL_CHANGE notify handling in the client libary.
          It did not actually replace the old channel entry in the cache.
          Affected file lib/silcclient/client_notify.c.

Tue Jun 19 22:10:36 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a possible crash in silc_packet_send_prepare.  It now
          assures always that there is enough space in the buffer and
          at the tail area of the buffer (for MAC). 

          Fixed the inbound buffer reallocation in silc_packet_read.
          It was old code and did not handle the reallocation correctly.
          Affected

          The affected file is lib/silccore/silcpacket.c.

        * Fixed buffer overflow in silc_parse_nickname in the file
          lib/silcutil/silcutil.c.

Tue Jun 19 13:40:09 CEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * make install generates new server keys only if there is not
          keys already.

Mon Jun 18 18:49:07 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Set SILC_MESSAGE_FLAG_NOREPLY when sending the away message.
          Added check that if the NOREPLY is set then we will not send
          the away message.  This avoids infinite loop of away messages
          if both clients are away.  The affected file is
          lib/silcclient/client_prvmsg.c.

        * Fixed client crash if /NICK was given without arguments.
          Affected file lib/silcclient/command.c.

        * Server does not send the invite list in INVITE command back
          to the client if the list was not altered.  Added this notion
          to the protocol spec as well.  Affected file silcd/command.c.

          Fixed possible crash in INVITE command by checking the
          value of silc_server_get_client_route command.

        * Fixed the INVITE notify type handling.  The arguments are now
          taken in correct order and client does not crash.  The affected
          file is irssi/src/silc/core/silc-channels.c.

          Removed the "Inviting xxx to channel" message from the
          client library away and let the application handle it.
          Affected file lib/silcclient/command.c.  Added that message
          to Irssi SILC client's message formats.

        * Fixed CMODE command crash in client.  It now checks the
          amount of arguments correctly and does not crash.  The affected
          file is lib/silcclient/command.c.

        * Do not create new channel automatically in silc_channels_join
          but check whether the channel by that name already exists.
          Affected file irssi/silc/core/silc-channels.c.

        * Do not send the SERVER_SIGNOFF to router if the disconnected
          entity was the router.  Affected file silcd/server.c.

        * Added the handling of the SERVER_SIGNOFF notify to the Irssi
          SILC client as it was missing from there.

          Added the handling of the KICK notify to the Irssi SILC client
          as it was missing.  Added "you have been kicked" message to
          Irssi SILC client's message modules formats.

          Added the handing of the KILL notify to the Irssi SILC client
          as it was missing.  Added the kill message module formats 
          as well.

          The affected file is irssi/src/silc/core/silc-channels.c.

        * The router did not save the channel mode the server announced.
          Affected file silcd/packet_receive.c.

        * Fixed a possible crash in INFO command in server.  If the
          server did not provide the server info it crashed.  Affected
          file silcd/command.c.

Sun Jun 17 15:26:05 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the GETKEY command in the server to check also the
          global list.  Otherwise the GETKEY would not work correctly
          in normal SILC server.  Affected file silcd/command.c.

Sat Jun 16 18:00:00 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed GETKEY crash, it crashed if the command did not succseed.

Tue Jun 12 21:36:18 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Redefined the SILC MP API in lib/silcmath/silcmp.h. The API
          is now real and not just an macro interface to GMP.

          Removed the entire GMP from the source tree and imported new
          NSS MPI library instead.  Reason for removing GMP is that it is
          extremely large and compiles extremely slow.  The NSS MPI
          is only a few files and compiles in less than 10 seconds.
          The speed is also about the same as GMP.  The MPI is imported
          to lib/silcmath/mpi.

          If the system has GMP installed we will still use the GMP.
          If it is not then the NSS MPI will be compiled.

Mon Jun 11 18:07:24 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Merged a long nickname (127 characters long) crash bugfix from
          Irssi CVS tree.  Affected file irssi/src/core/misc.c.

        * Merged a freed memory reference bugfix from Irssi CVS tree.
          Affected file irssi/src/core/commands.c.

Sun Jun 10 16:08:35 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added the server's public key sving and verification to the
          server when performing the SKE.  This was missing and the
          remote server's (or router's) public key was accepted without
          checking whether we have it previously or trust it at all.
          Affected file silcd/protocol.c.

Sat Jun  9 20:17:30 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Check in the silc_server_timeout_remote if protocol is active
          and make sure that the protocol's final callback is called so
          that all memory if freed.  Affected file silcd/server.c.

Sat Jun  9 12:51:27 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * silc_server_whois_send_reply crashed the server if the nickname
          was 127 characters long.  Affected file silcd/command.c.

Thu Jun  7 16:29:56 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added sanity check to the silc_server_new_client. If the hostname
          is provided inside username then check that the provided hostname
          really is the same as the resolved one.  If the hostname was not
          resolved then check it from the public key.  Affected file is
          silcd/packet_receive.c.

        * Fixed a fatal bug in Irssi SILC client. Do not send QUIT command
          if the server disconnected us and the connection is not valid
          anymore.  Affected file irssi/src/silc/core/silc-channels.c.

        * Moved the silc_client_[chmode|chumode|chumode_char] away from
          the library to the lib/silcutil/silcutil.[ch].

Thu Jun  7 08:57:16 CEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Close log file after open.  Affected file 
          lib/silcutil/silclog.c.

        * Check whether sock == NULL in silc_client_send_packet and return
          if it is.  Affected file lib/silcclient/silcclient.c.

        * Check rec->entry == NULL in the Irssi SILC Client before
          sending the channel message.  Affecte file is
          irssi/src/silc/core/silc-servers.c.

Tue Jun  5 08:08:21 CEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Merged a splitted window bugfix from Irssi CVS tree.  The 
          affected file is irssi/src/fe-text/textbuffer-view.c.

        * Fixed the ME, ACTION and NOTICE printing in Irssi Client.
          It did not print nickname.

        * Improved the distributions system a bit.

Mon Jun  4 17:57:16 CEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Merged /WINDOW bugfix from irssi CVS tree. Affected file is
          irssi/src/fe-text/gui-window.c.

        * Fixed a fatal bug in Irssi SILC client. Crashed if sent message
          to in-active server.  The affected file is
          irssi/src/silc/core/client_ops.c.

        * Resolve the client in USERS command reply if the entry does
          not have username resolved.  The affected file is
          lib/silcclient/command_reply.c.  Also, changed the IDENTIFY
          command to WHOIS command to really resolve stuff.  The USERS
          is not used any more in any critical section so WHOIS can
          be used even though it might be slower than IDENTIFY.

        * Changed the lib/silcutil/silchashtable.h header to ROBODoc
          format.

Sun Jun  3 14:21:32 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed the protocol API a bit more consistent in the
          lib/silccore/silcprotocol.[ch].

        * Changed the following headers to ROBODoc format:

                lib/silccore/silcpayload.h
                lib/silccore/silcprotocol.h
                lib/silccore/silcsockconn.h

          All core library headers are now formatted.

Sat Jun  2 10:45:09 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a bug in Irssi SILC client; do not show that you are
          server/router operator if you really are not.  Affected file is
          irssi/src/silc/core/client_ops.c.

        * Renamed silc_command_free_payload to silc_command_payload_free.
          Affected file lib/silccore/silccommand.h

        * Added silcmath.h to include the prototoypes of various routines
          in the lib/silcmath.  Removed the old modinv.h, mpbin.h and
          silcprimegen.h.

        * Changed the following headers to ROBODoc format:

                lib/silccore/silcchannel.h
                lib/silccore/silccommand.h
                lib/silccore/silcid.h
                lib/silccore/silcidcache.h
                lib/silccore/silcmode.h
                lib/silccore/silcnotify.h
                lib/silccore/silcpacket.h
                lib/silcmath/silcmath.h

Fri Jun  1 22:19:37 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added checking to the server code not to start the server if
          ciphers and stuff are not configured properly.  Affected files
          silcd/serverconfig.[h] and silcd/server.c.

        * Changed the layout of the header files of the public interfaces
          in the SILC libraries.  The new layout supports ROBODoc 
          documentation tool (and some others) so that it is easy to create
          a library reference manual.  All the other headers and source
          code must still follow the CodingStyle document.  Also source
          code must not include these ROBODoc stuffs, only the headers.
          Furthermore, all public interface headers must now be named
          by using `silc' prefix, example: silcapi.h, silccipher.h.
          Some files were renamed due to this.  All the other headers
          must not be used as public interfaces.  I will update the
          CodingStyle document later.  Changed following headers, so far:

                lib/silcclient/silcapi.h
                lib/silccore/silcauth.h
                lib/silccore/silcprivate.h
                lib/silccrypt/silcdh.h

Fri Jun  1 10:28:09 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Updated TODO.

        * Removed silc_client_packet_send_flush from the client library
          as it is not needed.  Affected file lib/silcclient/client.[ch].

        * Added printing of message of unresolved authentication method
          to the Irssi SILC client.  Added it to the module formats.
          Removed the same message from the client library.

Thu May 31 13:57:33 CEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new distribution feature, DISTLABEL.  Every distribution
          can define own preprocessor label that can be used in the
          source code.  For example: #ifdef SILC_DIST_CLIENT.  Affected
          file distributions, acconfig.h.pre and prepare.

Tue May 29 22:16:40 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added Makefile.defines_int to include the actual definitions
          for Makefile.defines.in.  Tested the new distribution system,
          created distributions and tested installation.

        * Added AWAY message printing to the Irssi SILC client.  Added
          the messages to the irssi/src/fe-common/silc/module-formats.[ch].

        * Added SCONNECT command to call the SILC's CONNECT command.
          Cannot use CONNECT directly since Irssi uses that internally.
          Affected file irssi/src/silc/core/silc-servers.c.

          Added ACTION local command.  It is same as ME command but takes
          the channel as mandatory argument.

          Rewrote some of the Irssi's help files to suite for SILC
          protocol.

Mon May 28 19:05:22 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added Makefile.defines[.in] that should for now on be included
          in all Makefile.am file in the source tree.  That file includes
          all common compilation definitions for SILC source tree.

Mon May 28 10:30:51 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Minor changes to the ./prepare script to change the package
          name according the distribution name to the configure.in.

Sun May 27 22:24:57 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Created new distribution system.  Added file `distributions'
          that defines all the distributions that can be created out of
          the SILC source tree.  The ./prepare script now reads that
          file to determine how to prepare the distributions.  The
          first argument to the ./prepare is the name of the distribution
          and second is the version of the distribution.  If given
          without arguments it creates the default (toolkit) distribution
          with the default version (defined in ./prepare).

          All Makefile.am files that are subject to the distributions
          are now named as Makefile.am.pre.  These are ./Makefile.am
          and lib/Makefile.am.  Others may be changed later.

Sun May 27 15:57:17 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added invite list, ban list, some key management and connection
          error message printing to module formats in the Irssi SILC client.

        * Added new silc_client_set_away_message to set the away message
          that is back to the person who sent private message.  The 
          affected file lib/silcclient/silcapi.h and the
          lib/silcclient/client_prvmsg.c.

Sun May 27 12:39:48 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the private message sending in the Irssi SILC client,
          added local command KEY to the Irssi SILC client.

          Added key management and key agreement message formats to the
          irssi/src/fe-common/silc/module-formats.[ch].

          Added USERS (alias WHO) printing, server/router operator
          indication and LIST command printing to the module formats.

Sat May 26 17:43:42 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed channel joining notify handling, cumode notify handling
          from Irssi SILC client.

        * Added SILC specific module-formats to the Irssi SILC client so
          that SILC specific message hilighting, colors etc is possible.
          Affected file irssi/src/fe-common/silc/module-formats.[ch].

          Added channel mode, channel user mode, actions, notices,
          whois and whowas printing to the the module-formats.c.

        * Fixed a bug in channel deletion in the server.  The channel
          is not left to the cache even if the channel founder auth mode
          is set when there are no users anymore on the channel.  Affected
          file silcd/server.c.

        * The silc_net_localhost now resolves the entire hostname including
          the domain name.  Affected file lib/silcutil/silcnet.c.

Sat May 26 12:13:37 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed the ask_passphrase client operation to be ascynchronous.
          It has now a completion callback and a context that the 
          application must call after it has got the passphrase from
          the user.  Affected files lib/silcclient/silcapi.h,
          lib/silcclient/protocol.c, lib/silcclient/command.c and
          silc/client_ops.c.

          Added SilcAskPassphrase callback that the application calls
          to deliver the passphrase to the library.

        * Changed the SKE protocol's SilcSKEVerifyCb to be asynchronous.
          The public key verification and especially a certificate
          verification is asynchronous procedure.

          Added new SILC_SKE_STATUS_PENDING status to indicate the
          request is pending and a callback will be called to finalize
          the request.

          Added also SILC_SKE_STATUS_PUBLIC_KEY_NOT_PROVIDED status to
          indicate that remote end did not send its public key (or
          certificate), even though we require it.  Added check for this
          condition in the SKE.  This was a security bug, now fixed.

          Defined new SilcSKEVerifyCbCompletion callback that is called
          when the verification process is completed.

          The affected files lib/silcske/silcske_status.h and
          lib/silcske/silcske.[ch].

        * Changed the verify_public_key client operation to be async
          as well.  Defined SilcVerifyPublicKey callback that is used to
          indicate the success of the public key verification process.

          Changed the server and client to use the new async client 
          operations.

        * Changed the Irssi SILC client's internal scheduler to be called
          twice as many times as it used to be.  As a result the client
          should be a bit faster now.  Affected file is
          irssi/src/silc/core/silc-core.c.

        * Added support to Irssi SILC client of asynchronous public key
          verification and passphrase inquiry.  Affected file is
          irssi/src/silc/core/silc-core.c.

Fri May 25 14:38:38 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Do not say "You have left channel %s" in client library.
          Moved it to the application.  Affected files are
          lib/silcclient/command.c and silc/client_ops.c.

        * Fixed silc_client_get_clients.  Command context was not
          duplicated and was freed memory in the callback.  Affected
          file lib/silcclient/idlist.c.

        * Do not say "you are now talking..." on JOIN command in the
          client library.  The appliation must handle it.

        * Do not say ".. changed topic to" in command reply in the
          client libary.  The application must handle it.

        * Fixed TOPIC command sending in the client library.

        * Fixed a memory leak in silc_client_command_free in the file
          lib/silcclient/command.c.

Thu May 24 19:08:55 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Imported a modified version of Irssi client to the source tree.
          The Irssi will be used to create a new client called
          Irssi SILC.  Imported to irssi/.

          Added silc_core_init_finish function to the Irssi.  Affected
          file irssi/configure.in.

          A lot changes in the Makefile.ams around the irssi tree.

Tue May 22 22:23:49 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Do not rehash if the new size is same as the old size of the
          hash table, in the silc_hash_table_rehash*.  The affected file
          lib/silcutil/silchashtable.c.

        * Replaced hash_table_del_by_context calls from the server
          (when channel->user_list and client->channels) to the
          hash_table_del as it is sufficient and faster.

Tue May 22 17:27:16 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_hash_table_list, silc_hash_table_get and the
          SilcHashTableList structure to provide an alternative way to
          traverse the hash table.  The affected files are
          lib/silcutil/silchashtable.[ch].

        * Changed the server's idlist routines to use the hash table
          routines to optimize the code.

Mon May 21 21:46:20 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Replaced the client entry's `channel' list and channel entry's
          `user_list' list to hash tables for optimized lookup.  Changed
          the code to use the hash table interface around the code. 
          Affected file lib/silcd/idlist.[ch].

        * Added `auto_rehash' boolean argument to the function
          silc_hash_table_alloc to indicate whether the hash table should
          auto-rehash when it thinks is appropriate time.  It will
          increase the hash table size if the there is twice as much
          entries in the table than the size of the table, and will
          decrease the size if there are twice as less entries than
          the size of the table.

Mon May 21 09:51:11 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed silc_xxx_get_supported to not crash at some circumstances.

Sun May 20 13:45:58 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * silc_idcache_purge_by_context deletes the entry now by context
          as it is supposed to do.  Affected file lib/silccore/idcache.c.

        * Send the ERR_NO_SUCH_NICK in the WHOIS command reply if the
          client is not anymore valid (WHOWAS givens the info) and not
          the ERR_NO_SUCH_CLIENT_ID if the nickname still exists.

Sat May 19 16:30:03 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Removed the `data' and `data_len' arguments from the ID Cache
          interfaces and added `name' argument.  ID Cache does not handle
          anymore the binary data only a names associated with given ID.

        * When hashing a Client ID with silc_hash_id the entire ID is
          not hashed anymore, instead only the hash of the Client ID is
          hashed.  This way we can access the Client ID from the cache
          with Client ID but with the hash of the ID (which is a hash of
          the nickname) as well without any difference in performance.

          Added also silc_idcache_find_by_id_one_ext to do one on one 
          searching when we have the actual ID.  Added also function
          silc_hash_client_id_compare.  The affected files are
          lib/silccore/idcache.[ch] and lib/silcutil/silcutil.[ch].

        * When hashing the name associated with a ID it is always done
          in lowercase.  This way we can access the cache without worrying
          about case-sensitivity, even though, for example nicknames are
          case sensitive.

        * Fixed a bug in server with channel message sending.  It put
          wrong ID type as destination ID.  The affected file 
          silcd/packet_send.c.

        * silc_idcache_del_by_context now deletes from all hash tables
          by context.  Affected file lib/silccore/idcache.c.

Fri May 18 17:42:00 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed the client library to use the new ID Cache interface.
          Changes around the source tree.

        * Added silc_hash_table_rehash_ext to rehash with specific
          hash function.  Affected file lib/silcutil/silchashtable.[ch].

        * Added silc_hash_string_compare to compare two strings in the
          hash table.  Affected file lib/silcutil/silcutil.[ch].

Fri May 18 11:18:45 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new function silc_idcache_del_by_context into the
          lib/silccore/idcache.[ch].

        * Changed the server's ID list routines to use the new ID Cache
          interface.  Changes around the source tree.

Fri May 18 08:35:31 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_hash_table_del[_by_context]_ext functions in to the
          lib/silcutil/silchashtable.[ch].

          Removed silc_hash_table_find_all* routines and added new
          silc_hash_table_find_foreach to replace them.

          Added silc_hash_table_replace_ext function as extended
          replacing function.  Separated the simple hash table interface
          from the extended hash table interface in the file
          lib/silcutil/silchashtable.h.

        * Fixed minor bugs and changed it to use some of the new
          hash table functions in lib/silccore/idcache.c

Thu May 17 18:15:12 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new function silc_hash_table_find_all to return all keys
          in the hash table by the specified key.  As the hash table is
          collision resistant it also makes it possible to have several
          duplicate keys in the hash table.  This function may be used to
          find all of the keys from the hash.

          Added user_context arguments to the SilcHashFunction,
          SilcHashCompare and SilcHashDestructor to deliver user specified
          context.

          Added new fuctions silc_hash_table_find[_all]_ext to do
          extended lookup with specified hash and compare functions and
          specified user contexts.

          Added new function silc_hash_table_add_ext to add the key
          with specified hash function and user context.

          Added new function silc_hash_table_foreach to traverse all
          entrys in the hash table.  Added SilcHashForeach callback
          function.

          Added new function silc_hash_table_del_by_context to delete
          the entry only if the context associated with the key matches.

          Affected files are lib/silcutil/silchashtable.[ch].

        * Removed silc_hash_[server/client/channel]_id and added just
          silc_hash_id to the lib/silcutil/silcutil.[ch].  Added also
          silc_hash_id_compare to compare two ID's using as the hash table
          comparison function.  Added also silc_hash_data to hash
          binary data and silc_hash_data_compare to compare it.

        * Removed silc_idlist_find_client_by_hash as it is not needed
          anymore.  Affected file silcd/idlist.[ch].

        * Rewrote the entire ID Cache system (in lib/silccore/idcache.[ch])
          to use internally the SilcHashTable.  The new ID Cache is a lot
          faster than the old one.  Some of the ID Cache interface was also
          rewritten and obsolete and stupid functions were removed.

Wed May 16 23:03:30 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added entry_count field to the SilcHashTable to keep the number
          of the entries in the table.  Implemented the function
          silc_hash_table_rehash.  Added new function
          silc_hash_table_count.  Affected file lib/silcutil/silchashtable.c.

          Fixed a minor bug in silc_hash_table_free.

        * Added silc_hash_string, silc_hash_uint, silc_hash_ptr,
          silc_hash_client_id, silc_hash_server_id and silc_hash_channel_id
          into the lib/silcutil/silcutil.[ch].

Wed May 16 20:02:47 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented a collision resistant hash table into the
          lib/silcutil/silchashtable[ch].  See the header and the source
          for the SilcHashTable API.

Tue May 15 22:05:46 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Merged dotconf version 1.0.2 into lib/dotconf.

Sun May 13 19:32:09 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Do not compile anything in lib/silcsim/* if the SIM support
          is not enabled.  The tree should now compile without problems
          under cygwin.

Thu May 10 22:49:51 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Compiled the SILC under cygwin.  Compiled and tested briefly
          without problems.  More tests needed.  The SIMs didn't compile
          though.

        * Added various #ifdef HAVE_* stuff to lib/silccrypt/silrng.c.

        * Fixed possible crash in silc_get_username in the
          lib/silcutil/silcutil.c.

Tue May  8 09:04:03 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a va_arg in silc/client_ops.c.

        * Oops, RC5 routines were named AES and caused some problems
          when not using SIM's.  Affected file lib/silccrypt/rc5.c.

Sun May  6 13:59:48 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new SilcIDIP structure into the lib/silccore/id.h and
          replaced the old `ip' fields from all SILC ID's to that type.
          This is a step towards IPv6 support.

          The silc_id_get_len takes now the ID as an extra argument.
          The silc_id_id2str, silc_id_str2id and silc_id_dup now supports
          both IPv4 and IPv6 based ID's.

          The affected files are lib/silccore/id.[ch] and other files
          around the tree using these routines.

        * Removed the ID length arguments in server from various 
          silc_server_send_notify_* routines -> they are not needed 
          anymore.

Sat May  5 13:56:33 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed memory leak in silc_encode_pem_file in the file
          lib/silcutil/silcutil.c.

Thu May  3 21:23:50 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Check minor version as well in the SKE.  Affected files are
          silcd/protocol.c and lib/silcclient/protocol.c.

        * Added --identifier option to the server so that an identifier
          can be when creating the public key for the server.  Affected
          file is silcd/silcd.c.

        * Fixed minor decoding bug in silc_pkcs_decode_identifier in
          lib/silccrypt/silcpkcs.c.

Wed May  2 20:50:49 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Register default ciphers and stuff when using -C option with
          the server.  Affected file sildc/silcd.c.

        * Put back the servers public key filename format, it is better
          than the new one.  For now, the client keys are saved with the
          new filename format.  The affected file silc/client_ops.c.

        * Implemented the Cipher API for the rest of the ciphers that
          did not implement it or implemented it the wrong way.

Wed May  2 13:31:26 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Register default ciphers and stuff when using the -S option
          in the client.  Affected file silc/silc.c.  Same also when
          creating new key pair with -C option.

Tue May  1 14:18:13 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the silc_verify_public_key client operation function to
          save the public keys differently.  The fingerprint is now 
          used as filename and not the hostname.  This way also the
          client keys are saved uniquely and not with hostnames.  The
          affected file is silc/client_ops.c.

        * Trimmed the silc_hash_fingerprint function to remove extra
          whitespaces from the end of the fingerprint.  The affected
          file is lib/silccrypt/silchash.c.

        * Updated TODO.

        * Added silc_cipher_register_default function to register all
          default ciphers.  It can be used when configuration files
          does not exist and the application does not want any specific
          ciphers in any specific order.

          The SilcDList is now used as silc_cipher_list dynamically
          allocated cipher list.  Removed the static list all together
          and now all ciphers must be allocated to the dynamic list.
          The silc_cipher_alloc routine was changed to check only the
          dynamic list.

          All silc_cipher_* routines that used to return int returns
          now bool.

          The affected files lib/silccrypt/silccrypt.[ch].

        * The same thing was done to silc_hash_* as for silc_cipher_*
          routines.  Affected files lib/silccrypt/silchash.[ch].

        * The same thing was done to silc_pkcs_* as for silc_cipher_*
          routines.  Affected files lib/silccrypt/silcpkcs.[ch].
          Added also silc_pkcs_[un]register[_default] functions.
          Removed the data_context from the PKCS API.

        * Added silc_hmac_register_default function to register default
          hmacs.  Affected files lib/silccrypt/silchmac.[ch].  Added also
          SILC_ALL_HMACS macro that can be used with silc_hmac_unregister
          to unregister all hmacs at once.

        * Register the default ciphers, hash functions, PKCSs and HMACs
          if client's configuration file does not exist.  The affected
          file silc/silc.c.

        * The client did not load the hash functions from the SIM
          modules at all.  Added support for this.  Affected file is
          silc/clientconfig.c.

        * When decoding public key with silc_pkcs_public_key_decode, check
          the supported algorithm only if PKCS are registered.  Affected
          file lib/silccrypt/silcpkcs.c.  The same was done with the
          silc_pkcs_private_key_decode.

        * Fixed the SILC List routines to keep the list always in order.
          It used to change the list's order when traversing the list but
          not it preserves the order.  Affected file lib/trq/silclist.h.

Mon Apr 30 17:29:03 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added the client library to use the SilcSocketConnection's
          reference counter (by silc_socket_dup) to prevent the bug that
          the socket object may be freed underneath async operation.

        * The name resolv library checking fixes in the configure.in.pre.
          The patch by salo.

        * Created new version of the protocol drafts for future
          development. The -03 drafts are the ones that will be changed
          in the trunk now and the -02 will remain as they are.

        * Send list of CUMODE notifys to the router when announcing
          the channel users to the router.  Affected file silcd/server.c.
          If the router receiving channel founder CUMODE for a channel
          that already has channel founder it will send CUMODE notify
          to the sender to remove the channel founder rights from the
          announced client.  Affected file silcd/packet_receive.c.

        * The CUMODE notify may now use Server ID as well as the entity
          who changes the mode.  Updated protocool specs.

        * Updated INSTALL and README files.

Sun Apr 29 23:17:50 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * New web pages in the http://silc.pspt.fi.  The pages was
          designed by salo.

        * Updated CREDITS.

Sun Apr 29 13:33:41 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented the [DenyConnectin] config section in the server.
          Added silc_server_config_denied_conn to check whether incoming
          connection is denied.  Affected file silcd/serverconfig.[ch].

        * Do not check the ports when checking the incoming configuration
          data if the port is 0, meaning any.  Affected file is
          silcd/serverconfig.c.

Fri Apr 20 18:58:43 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed buffer overflow in silc_string_compare in the file
          lib/silcutil/silcutil.c.

        * Fixed double free in silc_server_command_leave in the file
          silcd/command.c.

Fri Apr 20 14:00:11 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the version checking in the server.  Affected file is
          silcd/protocol.c.

Thu Apr 19 19:52:46 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the configuration data fetching when accepting new
          connections in the server.  Affected file silcd/server.c.

Thu Apr 19 11:40:20 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added `sender_entry' argument to the function
          silc_server_packet_relay_to_channel so that we can check
          whether some destination actually belongs to the same route
          the sender belongs (ie, we must not resend the packet to the
          sender).  Affected file silcd/packet_send.[ch].

        * Added `servername' field to the SilcClientEntry in the server
          to hold the name of the server where client is from.  Affected
          file is silcd/idlist.h.

Wed Apr 18 22:19:03 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Moved the channel message encrypting in the router betwen
          router connections from silc_server_channel_message to the
          silc_server_packet_relay_to_channel since we want to check
          whether we have anybody channel before encrypting anything.
          Affected files silcd/packet_[receive/send].c.

Tue Apr 17 21:18:19 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the [AdminConnection] server config section to support
          multiple entries.  Affected file silcd/serverconfig.c.

        * Added support into the server to check the validity of the
          incoming connection before executing any KE or authentication
          protocols.

        * The connection configuration is now saved to the KE and 
          connection auth protocol contexts and not fetched anymore in 
          the protocol.  Affected files silcd/server.c, silcd/protocol.[ch].

        * The local hosts listenning address and port is also resolved
          now when starting the server.  We want to have the socket object
          to include the real address and port for the listener.  Added
          new function silc_net_check_local_by_sock into the files
          lib/silcutil/silcnet.[ch].

        * Fixed a broadcast bug in server -> do not broadcast if we
          are standalone.

        * Fixed a routing bug.  Do not route broadcast packets ever.
          Broadcast packets must be processed always and not routed since
          they may be destined to some other host than yourself and thus
          would get routed without no good reason.  Affected file is
          silcd/server.c.

        * Added function silc_server_config_is_primary_route to check
          whether primary router connection has been configured (a router
          configuration that we are initiating).  If there is not, we 
          will assume that there is only two routers in the SILC network
          and we will use the incoming router connection as our primary
          route.  Affected files silcd/serverconfig.[ch], silcd/server.c.

        * Changed the order of the broadcasting.  Broadcast _after_ the
          packet has been processed not before.  Affected file is
          silcd/server.c.

        * Fixed a [ClientConnection] parsing bug.  The port was never
          parsed correctly thus resulting to port 0.  Affected file
          silcd/serverconfig.c.

        * Fixed silc_server_send_notify_args -> it ignored the `broadcast'
          argument and did not set the broadcast packet flag.  Affected
          file silcd/packet_send.c.  Fixed same bug in the function
          silc_server_send_notify as well.

        * If we receive NEW_ID packet for our own ID in the server, ignore
          the packet.

Mon Apr 16 12:10:33 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Updated TODO.

        * Removed the nickname from the Private Message Payload.
          Updated the code and the protocol specs.

        * Updated protocol specs for submitting to the IETF.

        * Tweaked the Random Number Generator a bit.  Affected file
          lib/silccrypt/silcrng.c.  Exported a new function
          silc_rng_[global]_add_noise which can be used to add more
          noise to the RNG.

Sat Apr 14 16:21:32 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Do not parse packets with different timeout when protocol
          is active -> may cause problem with rekey.  Affected file
          silcd/server.c.

        * When server receives signoff notify it must not create
          new channel key if the client is on any channels since the
          sender of the signoff notify will create it.

Fri Apr 13 17:12:46 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added printing of error messages during SKE protocol from the
          failure packet sent by server during SKE.  Affected file
          silc/client_ops.c.

        * Removed the client's failure_callback handling with timeout
          and handle it immediately when received.

        * The SKE library returned wrong type in SUCCESS and FAILURE 
          packets.  They must be 32 bit MSB not 16 bit MSB.

Fri Apr 13 00:09:08 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Ok, rewrote the logic of the re-key and now it seems to work.
          I tested it on high traffic with frequent re-keys without
          problems.  Added hmac_receive (and renamed hmac to hmac_send)
          in SilcClientConnection in lib/silcclient/client.h and
          in SilcIDListData in silcd/idlist.h.  Also, removed the
          SilcPacketParserContext's cipher and hmac fields as they are
          not needed anymore and actually caused some problems when
          the ciphers and hmac's changed underneath the packet parser.

Thu Apr 12 14:42:51 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * If re-key protocol is active then process the incoming packets
          synchronously since we must assure that icoming packets encrypted
          with the old key is processed before the new keys is set to
          use.  This is true other packets than for REKEY packets.
          Affected file silcd/server.c.  The same was done to client library
          as well, affected file lib/silcclient/client.c.

Thu Apr 12 12:01:52 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed bug in client and server to accept the force send if
          the packet is send from silc_[server/client]_packet_process
          function.  Otherwise the packets are never delivered, oops.

Wed Apr 11 22:10:15 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Disable force sending of packets when REKEY protocol is active.
          We must assure that no packet is sent directly when rekey is
          performed.  All packets must be sent through packet queue.
          Added macro SILC_SERVER_IS_REKEY to silcd/server.h and
          SILC_CLIENT_IS_REKEY to lib/silcclient/client.h.  Affected
          function is silc_[server/client]_packet_send_real to check
          the situation.

        * Replaced the SIM paths from example config files to 
          /usr/local/modules.  Also, make install creates now
          /usr/local/silc/logs directory to hold all the SILC server
          logs.

Wed Apr 11 16:59:59 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Made the configure.in.pre work on Solaris.  Patch by salo.

        * Made all ciphers compatible with non-x86 machines.  Defined
          CBC mode macros into lib/silccrypt/ciphers_def.h.

Tue Apr 10 20:32:44 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the make install.

Tue Apr 10 16:20:34 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * When MAC computation fails the silc_packet_decrypt returned 0
          even though it was supposed to return -1.  Fixed this.  The
          affected file is lib/silccore/silcpacket.c.

        * Do not replace the config files in /etc/silc (in make install)
          if they already exist.  Affected file ./Makefile.am.

        * Do not send re-key packets immediately but through packet queue.
          Affected file silcd/protocol.c and lib/silcclient/protocol.c.

        * Changed silc_net_check_host_by_sock to return FALSE if the
          IP/DNS could not be resolved.  Though, it returns the IP address
          now even if it could not resolve it (but returns also FALSE).
          Affected file lib/silcutil/silcnet.[ch].

Mon Apr  9 21:54:44 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_pkcs_decode_identifier to decode the public key's
          identifier.  Affected file lib/silccrypt/silpkcs.[ch].
          Added also silc_pkcs_free_identifier.  Added also new context
          SilcPublicKeyIdentifier.

        * Added -S option to the silc client.  It is used to dump the
          contents of the specified public key file.

        * Changed the PKCS api to return the public key length when
          setting the public key.

        * Fixed a fatal bug in the public and private key file loading.
          Affected file lib/silccrypt/silcpkcs.c.

        * Execute the packet parsing for client with zero (0) timeout
          if the protocol is active.  Affected file silcd/server.c.

Sun Apr  8 19:30:56 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Made the key generation options to the silcd program.  Added
          -C option, equivalent to client's option.

        * Added new [ServerKeys] config section to the server.  It
          configures the server's public and private key.

        * Defined generic Public Key Payload into the protocol
          specification to send specific type of public keys and
          certificates.

        * Defined new command SILC_COMMAND_GETKEY to fetch a client's
          public key or certificate.

        * Implemented the GETKEY command to the server and to the
          client library and on user interface.

Sun Apr  8 01:37:21 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Made preliminary `make install' work.

Thu Apr  5 17:42:30 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SilcServerRekey context into silcd/idlist.h.

        * Added the PFS support as defined in the specification to the
          SKE protocol.  Affected files lib/silcske/*.c.

        * Added `ske_group' field to the SilcServerRekey context to hold
          the number of the SKE group that is used with PFS in re-key.
          Affected file silcd/idlist.h.

        * Added PFS re-key support to the server.  Affected file is
          silcd/protocol.c.

        * Added silc_protocol_cancel to cancel execution of the next
          state of the protocol.  Affected file is
          lib/silccore/silcprotocol.[ch].

        * Added the re-key support with and without PFS to the client
          library.  Re-key is performed once in an hour, by default.

          Added new protocol type SILC_PROTOCOL_CLIENT_REKEY.
          Added silc_client_rekey_callback and silc_client_rekey_final.
          Affected files are lib/silcclient/protocol.[ch] and
          lib/silcclient/client.[ch].

        * Removed the `hmac_key' and `hmac_key_len' fields from the
          SilcClientConnection structure; not needed.  Affected file is
          lib/silcclient/client.h.

        * Updated TODO.

Wed Apr  4 16:32:31 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Do not ask whether user wants to use the negotiated private key
          for private messages, just use it.  Affected file is 
          silc/local_command.c.

        * Added `send_enc_key' and `enc_key_len' fields to the 
          SilcIDListData structure since they are needed in the re-key
          phase.  Affected file is silcd/idlist.[ch].

        * Implemented the simple re-key protocol into the server.
          Affected files silcd/server.c and silcd/protocol.[ch].  The
          re-key will be performed once in an hour, by default.

          Added new protocol type SILC_PROTOCOL_SERVER_REKEY.
          Added silc_server_rekey, silc_server_rekey_callback and
          silc_server_rekey_final.

        * Removed Tunneled flag from the protocol.  Updated the code
          and the specifications.

        * Adde `pfs' field to the SilcIDListData to indicate whether
          the PFS is to be performed in the re-key.  Affected file is
          silcd/idlist.h.

Tue Apr  3 21:52:42 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Defined uint8, int8, uint16, int16, uint32, int32, uint64 and
          int64 of at least the xintXX size.  If void * is less that 4
          bytes uint32 * will be used.  Defined bool as boolean.

        * Changed _ALL_ unsigned long and unsigned int to uint32, 
          unsgined short to uint16 in the source tree.

        * Fixed a fatal bug in silc_server_remove_clients_by_server.  Do
          not handle clients that has entry->data.registered == FALSE.
          They are not in the network anymore.  Affected file is
          silcd/server.c.

Tue Apr  3 16:39:19 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented the sending of the SERVER_SIGNOFF notify in the
          server.  Affected file is silcd/server.c.

        * Added silc_server_send_notify_args into silcd/packet_send.[ch].
          Added also silc_notify_payload_encode_args into the
          lib/silccore/silcnotify.[ch].

        * Implemented ther SERVER_SIGNOFF notify handling in the server.
          Affected file silcd/packet_receive.c.

        * Implemented the SERVER_SIGNOFF notify handling in the client
          library.  Affected file lib/silcclient/client_notify.c.  Also,
          implemnted the printing of the SERVER_SIGNOFF info to the
          application.  Affected file silc/client_ops.c.

        * The silc_idlist_del_server now returns TRUE or FALSE to indicate
          if the deleting was successful.  Affected file silcd/idlist.[ch].

        * Added support for public key authentication in the connection
          authentication protocol in the client library.  Affected file
          lib/silcclient/protocol.c.

        * Changed the server's silc_idlist_get_clients_by_* interface
          to support already allocated array so that new entries may be
          added to pre-allocated array.  Affected file silcd/idlist.[ch].
          This fixes some bugs with WHOIS, WHOWAS and IDENTIFY commands
          and command replies.

        * All command reply functions in the server now calls the 
          pending command callback even if error occured.  This way the
          error will be delivered to the client as well.  Affected files
          silcd/command.c and silcd/command_reply.c.

        * Fixed INFO command to return local server's info if no server
          was provided.  Affected file lib/silcclient/command.c.

        * Removed RESTART command for good.  Updated the code and the
          protocol specs.

        * Rewrote parts of the task system.  It is a bit simpler now.
          Removed unsued task priorities. The affected files are
          lib/silcutil/silctask.[ch].

Mon Apr  2 20:02:33 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Moved the USERS printing from the library to the application.
          Affected files lib/silcclient/command.c and silc/client_ops.c.

Mon Apr  2 13:13:23 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Updated TODO.

        * Added channel key re-key support.  The re-key is perfomed
          only by the router and is done once in an hour.  Added `rekey'
          field to the SilcChannelEntry in the server.  Affected files
          silcd/server.c and silcd/idlist.h.

        * Added silc_task_unregister_by_context into the file
          lib/silcutil/silctask.[ch].

Sun Apr  1 19:49:34 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SILC_UMODE_GONE mode to indicate when the client is not
          present in the SILC network.  Added also support to the local
          command AWAY that will set this mode.  Added support of showing
          "xxx is gone" in WHOIS command.  The USERS command shows the
          gone status as well.

        * Fixed setting server and router operator privileges in the
          server's UMODE command.  Affected file silcd/command.c.

        * Merged the SKE KE1 and KE2 payloads into one payload.  The
          new KE payload is equivalent to the old KE2 payload.

          Cleaned up the SKE Start Payload parsing.  It now uses the
          simple buffer unformatting to do the parsing.  A lot faster
          now.

          Added new Mutual Authentication flag (SILC_SKE_SP_FLAG_MUTUAL)
          to the SKE that is used to indicate whether both of the SKE
          parties should perform authentication.  By default only the
          responder performs authentication.  By setting this flag also
          the initiator must do authentication.  By default it is unset
          since in normal SKE case, client to server connection, only
          the responder should do authentication.  When doing SKE between
          two clients both should perform authentication.  Updated the
          code and the protocol specs.

        * A little fix to IDENTIFY command in the server.  Search the
          client first by hash not nickname.  Affected file is 
          silcd/command.c.

        * Fixed the silc_client_close_connection to support closing
          the client to client connections wihtout deleting too much
          data.  Affected file lib/silcclient/client.c.

        * Fixed a fatal bug in server and client; if KE1 or KE2 packets
          are received if protocol used to be active but is not anymore
          the application would crash due to NULL pointer dereference.
          Affected files silcd/server.c and lib/silcclient/client.c.

        * Added `hash' field to the SilcClientConnection to include
          the hash function negotiated in the SKE protocol.

        * Added new channel mode SILC_CMODE_FOUNDER_AUTH that is used
          to set the channel founder authentication data.  A client can
          claim the founder rights later by providing the authentication
          data to the CUMODE command using SILC_CUMODE_FOUNDER mode.
          This way the channel founder can regain the channel founder
          privileges even it is left the channel.  This works only on
          local server and the client must be connected to the same
          server to be able to regain the founder rights.  Updated the
          protocol specs accordingly.

          Added support to the CMODE command in the client to set the
          founder auth data.  Read the README to see how to set it.

          Added support to the CUMODE command to claim the founder
          rights.  Read the README to see how to do it.

          Added support for the founder authentication to the Channel
          Entry in the server.  Affected file silcd/idlist.h.

          Added support for the SILC_CMODE_FOUNDER_AUTH mode in the
          server's CMODE command.  Affected file silcd/command.c.

        * Added the following new functions into lib/silccore/silcauth.[ch]:
          silc_auth_get_method and silc_auth_get_data.    

        * The server now saves the remote hosts public key to the
          SilcIDListData pointer.  Affected file silcd/protocol.c.

        * The normal server now does not remove the channel entry from
          the cache if the founder authentication data is set.  It used
          to remove it if the founder was the last one on the channel on 
          the server and left the channel.  The auth data is saved and
          if the channel is re-joined later the old entry is used with
          the old auth data.  Affected files silcd/command_reply.c and
          silcd/server.c.

        * Removed the `pkcs' field from the SilcIDListData structure
          in the server; it is not used.  Affected file silcd/idlist.h.

Sat Mar 31 15:38:36 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed packet processing on slow links.  Partial packets were
          never re-processed because the incoming data buffer was cleared
          by the application.  Application must not directly clear the
          sock->inbuf, the packet processing routines handle it.  Fixed
          this in client library and in server.

Fri Mar 30 16:35:27 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the WHOIS and IDENTIFY send reply function to really
          check whether to send list or just one entry.  Affected file
          silcd/command.c.

        * Cleaned up the LEAVE command's channel key distribution.  The
          affected file silcd/command.c.

        * Changed CMODE_CHANGE's <Client ID> to <ID Payload> as server
          can enforce the channel mode as well.  In that case the ID
          includes the ID of the server.  The code now enforces the
          mode change if the router have different mode than the server.

        * The notify client operation with CMODE_CHANGE notify can now
          return NULL client_entry pointer if the CMODE was not changed
          by client.  Application must check for this.

        * Added <Server ID> argument to INFO command to support server
          info fetching by Server ID.

        * Added silc_server_announce_get_channel_users to get assembled
          packets of channel users of the specified channel.  Affected
          file silcd/server.[ch].

        * Fixed bug in CHANNEL_CHANGE notify in the server.  The new ID
          was freed underneath the ID Cache.

        * Re-announce clients when the server received CHANNEL_CHANGE
          notify from the router.  Affected file silcd/packet_send.c.

Thu Mar 29 19:10:28 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a fatal bug when client does /join 1 2 3 4 5 6 the server
          crashed since it did not handle the fact that there is no cipher
          called "3" and didn't check the error condition.  Now fixed.

        * Added SILC_MESSAGE_FLAG_REQUEST message flag as generic request
          flag.  It can be used to send message requests.

Thu Mar 29 12:26:25 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented the RESTART command in the client.

        * Added SILC_MESSAGE_FLAG_NOTICE message flag for informational
          notice type messages.  Added notice printing to the user
          interface.

        * The channel keys are not re-generated if the channel's mode
          is PRIVKEY, ie private key on the channel exists.  Affected
          files silcd/server.c and silcd/command.c.

        * Fixed a little bug in channel message delivery when channel
          private keys are set in the server.  Affected file is
          silcd/packet_send.c.

        * Changed the setting on channel->on_channel = TRUE from the
          silc_client_save_channel_key to the JOIN command reply.  The
          key payload is not received if the private channel key is set.
          Affected file lib/silcclient/command_reply.c and the
          lib/silcclient/client_channel.c.

        * When the CMODE_CHANGE notify is sent and the channel private
          key mode is removed the channel key must be re-generated in
          other cells as well.  Added this support for the router in the
          silcd/packet_receive.c.

        * Added new local command NOTICE to send notice message on
          channel.  Affected file silc/local_command.[ch].

Wed Mar 28 23:55:54 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new local command ME to the client.  It is used to send
          message to a channel with SILC_MESSAGE_FLAG_ACTION to indicate
          some action.  Affected file silc/local_command.[ch].

        * Changed channel_message and private_message client operations 
          to deliver the message flags to the application.  Added also
          the `flags' arguments to the silc_client_send_channel_message
          and silc_client_send_private_message functions.  Affected file
          silcapi.h.

Wed Mar 28 20:50:47 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Redefined the Private Message Payload to support private message
          keys and to support the new private message flags.  Updated
          the protocol specs.  Flags makes it possible to have for example
          CTCP style messages.

        * Added new type SilcPrivateMessagePayload and defined an API
          for it in the lib/silcclient/silcprivate.[ch].

        * Tested private message private keys successfully.  Tested the
          private message key set, unset and list commands with the new
          KEY command.

        * Redefined the Channel Message Payload to include the channel
          message flags (equal with private message flags) to support
          for example CTCP style messages.

        * Defined some of the message (for channel and private message)
          flags.  Updated the protocol specs and added the flags to the
          lib/silccore/silcchannel.h.  The type is SilcMessageFlags.

Wed Mar 28 15:52:36 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SilcKeyAgreementStatus type to the key agreement routines
          to indicate the current status and error if one occured.
          The status types are defined in the lib/silcclient/silcapi.h.

        * Added new local command KEY that is used to set and unset private
          keys for channels, set and unset private keys for private messages
          with remote clients and to send key agreement requests and
          negotiate the key agreement protocol with remote client.  The
          key agreement is supported only to negotiate private message keys,
          it currently cannot be used to negotiate private keys for channels,
          as it is not convenient for that purpose.

        * Fixed a minor pending callback setting bug in the function
          silc_client_get_client_by_id_resolve, now the function works.
          Affected file lib/silcclient/idlist.c.

        * Added function silc_net_get_local_port to get local bound
          port by socket.  Added to lib/silcutil/silcnet.[ch].

        * Added `sockets' and `sockets_count' fields to the SilcClient
          object.  They hold the sockets of the listenning sockets in
          the client.  Listenning sockets may be for example the key 
          agreement server.  Affected file lib/silcclient/client.[ch].
          Added functions the silc_client_add_socket and the
          silc_client_del_socket.  They are exported to the application
          as well.

        * Added ~./silc/clientkeys to support other client's public keys.

        * Renamed verify_server_key client operation to verify_public_key
          and added one argument to indicate the type of the connection
          (server, client etc.).

Tue Mar 27 22:22:38 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_server_connection_auth_request to handle the
          incoming CONNECTION_AUTH_REQUEST packet.  Affected file is
          silcd/packet_receive.[ch].

        * Added silc_server_send_connection_auth_request into the
          silcd/packet_send.c to send the connection auth request packet.

        * Cleaned up the silcd/protocol.c a bit and fixed some memory
          leaks.

        * Fixed the public key authentication in responder side in the
          server.  The `auth_data' pointer includes the SilcPublicKey
          not the path to the public key.  Affected file silcd/protocol.c.

        * Implemented the public key authentication in the initiator side
          in the server.  Affected file silcd/protocol.c.

        * Removed the [RedirectClient] config section from the server
          configuration.  Is not needed and I don't want to implement it.

Tue Mar 27 12:49:56 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Cleaned up the CMODE command in the server.  It now works
          correctly and supports all the modes defined in the protocol.
          Affected file is silcd/command.c.

        * Added `hmac_name' field to the SilcChannelEntry in the server
          to hold the default HMAC of the channel.  It can be set when
          creating the channel (with JOIN command).  Affected files
          silcd/idlist.[ch].

        * Added <cipher> and <hmac> argument to the CMODE_CHANGE notify
          type to indicate the change of the current cipher and hmac
          on the channel.  Client can safely ignore the <cipher> argument
          (if it chooses to do so) since the CHANNEL_KEY packet will 
          force the channel key change anyway.  The <hmac> argument is
          important since the client is responsible of setting the new
          HMAC and the hmac key into use.

        * Fixed the CMODE command in the client library as well.

        * Tested CMODE command in router environment successfully.

Mon Mar 26 14:39:48 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Show the version of the remote client (or server) when connecting
          to the server.  It is logged to the log file.  Affected file
          is silcd/protocol.c.

        * Fixed the KILLED notify handling in the client library.  The
          client must be removed from all channels when receiving the
          KILLED notify.

          Also, do not remove the client entry when giving the KILL 
          command but when the KILLED notify is received.

        * Removed silc_idlist_find_client_by_nickname from the server.
          Not needed anymore.  Affected files silcd/idlist.[ch].

        * Implemented the CHANNEL_CHANGE notify type handling to the
          server.  Affected file silcd/server.c.

        * Updated TODO.

Mon Mar 26 12:11:14 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_server_send_notify_invite to send the INVITE
          notify between routers.

        * Implemented the INVITE command correctly to the server.

        * Implemented the INVITE notify type handling in the server.

        * Implemented the INVITE command to the client library and on the
          user interface.

Sun Mar 25 20:27:09 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added function silc_server_get_client_resolve to find the
          client entry by ID from all ID lists and then resolve it
          (using WHOIS) if it cannot be found.  Affected file is
          silcd/server.[ch].

Sun Mar 25 13:52:51 EEST 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented the BAN command to the client library.

        * The JOIN command in the server now checks the invite list
          and the ban list.

        * Changed the silc_command_reply_payload_encode_va and the
          silc_command_payload_encode_va to support that if argument is
          NULL it ignores and checks the next argument.  Affected file
          lib/silccore/silccommand.c.

        * Added silc_server_send_notify_ban to send the BAN notify
          type between routers.

        * Chaned the silc_notify_payload_encode to support that if 
          argument is NULL it ignores and checks the next argument.
          Affected file lib/silccore/silcnotify.c.

        * Tested ban lists in router environment successfully.

Sat Mar 24 14:47:25 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented BAN command to the server, in silcd/command.[ch].

        * Removed the BAN and INVITE_LIST modes from the CMODE command
          in the server code.

        * Added function silc_string_match to regex match two strings.
          Affected files lib/silcutil/silcutil.[ch].

Fri Mar 23 22:02:40 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Redefined parts of the SilcChannelEntry in the server to support
          the new ban and invite lists.

Fri Mar 23 16:25:11 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Redefined the INVITE command.  The same command can be used to
          invite individuals to the channel but also to manage the invite
          list of the channel (to add to and remove from the invite list).
          Updated the protocol specs.

        * Added new command SILC_COMMAND_BAN that can be used to manage
          the ban list of the channel.  Updated the protocol specs.

        * Removed the channel modes: the SILC_CMODE_BAN and the 
          SILC_CMODE_INVITE_LIST as they were a bit kludge to be included
          in the CMODE command.  The equivalent features are now available
          using INVITE and BAN commands.  Updated the protocol specs.

        * Added new SILC_NOTIFY_TYPE_BAN notify type to notify routers
          in the network about change in the current ban list.  The notify
          type is not used by the client.

        * Redefined parts of the SILC_NOTIFY_TYPE_INVITE command to 
          support the invite lists.

Thu Mar 22 22:52:23 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new function silc_string_regexify that converts string
          including wildcard characters into regex string that can
          be used by the GNU regex library.  Added into the file
          lib/silcutil/silcutil.[ch].

          Added silc_string_regex_combine to combine to regex strings
          into one so that they can be used as one regex string by
          the GNU regex library.  Added into the file
          lib/silcutil/silcutil.[ch].

          Added silc_string_regex_match to match two strings.  It returns
          TRUE if the strings match.  Added into lib/silcutil/silcutil.[ch].

Thu Mar 22 15:29:42 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Imported GNU regex to the soruce tree into lib/contrib.
          Fixed some compiler warning from the regex.c.

Wed Mar 21 15:27:58 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed MOTD command in the server to work in router environment.

        * Fixed the MOTD command in the client library to support
          the server argument in the command.

        * Added `nickname_len' argument to the silc_idlist_add_client
          in the server, as the `nickname' argument may be binary data
          (it may be hash).

        * Added silc_idlist_get_channels to return all channels from
          the ID list.

        * Implemented LIST command to the server.  Affected file is
          silcd/command.c.

        * Implemented the LIST command to the client library and on the
          user interface.

        * Added [<user count>] argument to the LIST command reply.
          With private channels the user count is not shown.

        * Updated TODO and README.

Tue Mar 20 21:05:57 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * The client entry's data.registered must be TRUE even with
          global client entry on global client list.  The data.registered
          is used to check whether the client is anymore in the network,
          for example with WHOWAS command so it must be valid.

        * Fixed the WHOWAS command in the server.  It now actually works
          in router environment.  Added function into silcd/command_reply.c
          silc_server_command_reply_whowas_save.

        * Added silc_idlist_purge function to the silcd/idlist.c
          to periodically purge the ID Cache.

        * Fixed INFO command in the server.  It works now in router
          environment.  Added <server name> argument to the INFO command
          reply.  Updated the protocol specs.

        * Fixed minor bug in silc_idcache_purge to not purge if the
          expire value is zero.

        * Fixed various bugs in WHOIS and IDENTIFY command handling as
          they were buggy because of the WHOWAS information.

        * Fixed local command MSG to handle the async resolving of 
          the remote client properly.  It used to fail the first MSG.
          Affected file silc/local_command.c.

        * Added `data_len' field to SilcIDCache context.

Tue Mar 20 16:29:00 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Update TODO.  Todo in commands in the server.

Tue Mar 20 15:45:14 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new notify type SILC_NOTIFY_TYPE_UMODE_CHANGE that is
          used by routers as broadcast packet to inform other routers
          about the changed user mode.

          Implemented the notify handling in the server.  Affected file is
          silcd/packet_receive.c.  Added the function 
          silc_server_send_notify_umode to the silcd/packet_send.[ch].

        * Added new generic Channel Payload and deprecated the New Channel
          Payload.  The New Channel Payload is now the generic Channel
          Payload.

        * Added new argument `mode' to the silc_server_send_new_channel
          as it is required in the Channel Payload now.

        * Renamed the SilcChannelPayload to SilcChannelMessagePayload
          and created a new and real SilChannelPayload to represent the
          new generic Channel Payload.  Implemented the encode/decode
          for Channel Payload.  Affected file lib/silccore/silcchannel.[ch].

        * Added silc_server_get_client_channel_list to return the list
          of channels the client has joined for WHOIS command reply.
          Affected file silcd/server.[ch].

        * Implemented the channel list sending in the WHOIS command reply
          in server and in the client.

          Implemented the channel list displaying on the user interface
          as well.  Affected file silc/client_ops.c.

        * Added silc_channel_payload_parse_list to parse list of Channel
          Payloads.  It returns SilcDList list of SilcChannelPayloads.
          Client for example can use this function to parse the list of
          channels it receives in the WHOIS command reply.  The caller
          must free the list by calling silc_channel_payload_list_free.
          Affected files lib/silccore/silcchannel.[ch].

Mon Mar 19 21:39:15 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added one new argument <user mode> to the WHOIS command reply
          to return the mode of the user in SILC.  Updated the protocol
          specs.

          Implemented it to the server and client.

Mon Mar 19 18:43:06 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the mode printing on the user interface on joining.
          Affected file silc/client_ops.c.

        * Implemented the UMODE command and user modes in general to the
          client library and to the user interface.

        * Implemented the UMODE command to the server.

        * The server now sends UNKNOWN_COMMAND error status if client sends
          unknown command.  Affected file silcd/command.c.

        * All server commands now handle the command identifier the right
          way when sending the command reply to the client.  The client can
          use to identify the command replies with the identifier.

Mon Mar 19 16:13:07 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_server_get_client_route to resolve the route to
          the client indicated by the client ID.  Affected file is
          silcd/server.[ch].

        * Added silc_server_relay_packet as general function to relay
          packet to arbitrary destination.  This deprecates functions
          like _send_private_message_key, _relay_notify etc.  Affected
          file is silcd/packet_send.[ch].

          Removed silc_server_send_key_agreement, 
          silc_server_send_private_message_key and
          silc_server_packet_relay_notify functions from the file
          silcd/packet_send.[ch].

        * Updated TODO.

        * Implemented the SILC_NOTIFY_TYPE_KILLED notify handling in the
          server.  Affected file silcd/packet_receive.[ch].

        * Implemented the KILL command to the client.  Implemented the
          SILC_NOTIFY_TYPE_KILLED notify handling in the client library.
          Affected files lib/silcclient/command[_reply].c and
          lib/silcclient/client_notify.c.  Implemented the KILL notify
          printing in the user inteface.

        * Fixed a lot silc_parse_nick memory leaks from the client
          library in the file lib/silcclient/command.c.

        * Changed the silc_server_send_notify_on_channels's `sender'
          argument from SilcSocketConnection to SilcClientEntry to 
          check the sender as entry and not as connection object and not
          to send to the client provided as argument.  The affected file
          is silcd/packet_send.[ch].

        * The notify packets that are destined directly to the client used
          to not to be processed by the server.  Now changed that and the
          server processes all notify packets.  After relaying the packet
          to the client the notify packet is processed in the server.

        * The silc_server_free_client_data now checks whether there is
          pending outgoing traffic for the client and purges the data to
          the network before removing the client entry.

Sun Mar 18 21:02:47 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SILC_NOTIFY_TYPE_KILLED notify type.  It is sent when
          an client is killed from the SILC Network.  Updated the protocol
          specs accordingly.

          Added new function silc_server_send_notify_killed to the
          silcd/packet_send.[ch].

        * Added function silc_server_packet_relay_notify to relay notify
          packets that are destined directly to a client.  In this case
          the server does not process the notify packets but merely relays
          it to the client.  Affected file silcd/packet_send.[ch].

          Added also silc_server_packet_process_relay_notify to check
          whereto relay the notify.  Affected file is 
          silcd/packet_receive.[ch].

        * Implemented the KILL command to the server.

        * Updated TODO.

        * Added the backup schema desgined last fall to the protocol
          specs for everyone to see.  The specification is in the
          *-spec-xx.txt draft and the packet type definitions for the
          backup routers is in *-pp-xx.txt draft.  Thusly, added also
          new packet type SILC_PACKET_CELL_ROUTERS.

        * A big security problem in the implementation discovered.  The
          signoff of an client did not cause new channel key generation
          which it of course should've done.  The channel keys must be
          always re-generated when client leaves (or signoffs) the channel.
          The silc_server_remove_from_channels funtion now handles
          the channel key re-generation.

        * Added `sender' argument to the silc_server_send_notify_on_channels
          to not to send the client provided as argument.  Affected file
          silcd/packet_send.[ch].

Fri Mar 16 15:52:49 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented OPER and SILCOPER commands into the server and
          the client library.

        * Added silc_auth_verify and silc_auth_verify_data to verify
          the authentication directly from the authentication payload.
          It supports verifying both passphrase and public key based
          authentication.  Affected file lib/silccore/silcauth.[ch].

        * Added `hash' field to the SilcIDListData structure.  It is the
          hash negotiated in the SKE protocol.  Affected file is
          silcd/idlist.[ch].

        * Slight redesigning of the SilcAuthPayload handling routines.
          Do not send SilcPKCS but SilcPublicKey as argument.

        * Implemented the public key authentication support to the
          serverconfig.  The public key is loaded from the provided path
          and saved as authentication data to void * pointer.  Thus,
          changed the unsigned char *auth_data to void *auth_data;

        * Fixed SHUTDOWN command to send the reply before the server
          is shutdown. :)  Affected file silcd/command.c.

        * Fixed fatal bug in CONNECT command.  The hostname was invalid
          memory and server crashed.  Affected file silcd/command.c.

        * Fixed fatal bug in CLOSE command.  The server_entry became
          invalid but was referenced later in the command.  Affected file
          silcd/command.c.

Thu Mar 15 12:46:58 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed fatal bug in failure packet handling.  Server ignored
          the failure and thus crashed when it came.

        * Updated TODO.

Wed Mar 14 20:37:35 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new SILC_CF_LAG_STRICT command flag that strictly forces
          that the command may be executed only once in (about) 2 seconds.
          The old SILC_CF_LAG flag is same but allows command bursts up
          to five before limiting.

          Added the support for CF_LAG and CF_LAG_STRICT flags to the
          server code.  Various commands now includes the CF_LAG_STRICT
          flag to disallow any kind of miss-use of the command.

        * Fixed the silc_buffer_unformat to not to allocate any data
          if the length of the data is zero.  It used to allocate the
          length + 1.  Affected file lib/silcutil/silcbuffmt.c.

Wed Mar 14 16:10:30 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed the format of AdminConnection configuration section
          in the server.  Added username of the admin to the format.
          Affected files silcd/serverconfig.[ch].

          Added silc_server_config_find_admin into silcd/serverconfig.[ch]
          to return admin configuration data by host, username and/or
          nickname.

Wed Mar 14 13:18:16 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented WHOWAS command to the server.  Added the functions:

          silc_server_command_whowas_parse,
          silc_server_command_whowas_send_reply,
          silc_server_command_whowas_from_client and
          silc_server_command_whowas_from_server

        * Added <Client ID> argument to the WHOWAS command reply.  Updated
          the protocol specs accordingly.

        * Implemented WHOWAS command and command_reply to the client
          library.

          Implemented the WHOWAS printing on the user interface.

Tue Mar 13 22:17:34 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new argument to the WHOWAS command reply, the real name.
          It is an optional argument.  Updated the protocol specs.

        * Added SilcIDCacheDestructor callback that is registered when
          the SilcIDCache is allocated.  The callback is called when
          an cache entry in the ID Cache expires, or is purged from the
          cache.  Added into lib/silccore/idcache.[ch].

          Added silc_idlist_client_destructor to the silcd/idlist.[ch]
          to destruct the client entries when the cache entry expires.
          Other ID Cache's in server and in the client library ignores
          the destructor.

        * If the ID Cache entry's `expire' field is zero then the entry
          never expires.  Added boolean `expire' argument to the
          silc_idcache_add function in the lib/silccore/idcache.[ch].
          If it is TRUE the default expiry value is used.

        * Added silc_server_free_client_data_timeout that is registered
          when client disconnects.  By default for 5 minutes we preserve
          the client entry for history - for WHOWAS command.

Tue Mar 13 13:26:18 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added support to the server to enforce that commands are not
          executed more than once in 2 seconds.  If server receives 
          commands from client more frequently, timeout is registered
          to process the commands.  Affected file silcd/command.c.
          Added new function silc_server_command_process_timeout.

        * Changed NICK_NOTIFY handling in client library to check that
          if the client's nickname was changed, so there is no need to
          resolve anything from the server.

        * Removed error printing from the WHOIS and IDENTIFY commands.
          If error occurs then it is ignored silently in the client library.
          The application, however, may map the received error to 
          human readable error string.  The application currently maps
          the NO_SUCH_NICKNAME error to string.

        * Made the command status message public to the application.  Moved
          them from lib/silcclient/command_reply.c to 
          lib/silcclient/command_reply.h.  The application can map the
          received command status to the string with the
          silc_client_command_status_message function.

        * Added check to the server to check that client's ID is same
          as the Source ID in the packet the client sent.  They must
          match.

Tue Mar 13 12:49:21 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added dist-bzip hook to the Makefile.am to make bzip2
          compressed distributions.

Mon Mar 12 18:43:38 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Server now enforces the maximum length for the nickname and
          the channel as protocol specification dictates.  128 bytes for
          nickname and 256 bytes for channel name.

        * Moved the WHOIS printing to the application.  The client libary
          does not print out the WHOIS information anymore, the application
          must do it.  Renamed silc_client_command_reply_whois_print to
          the silc_client_command_reply_whois_save.

          The client's idle time is also sent to the application now, and
          the idle is shown on screen.

        * Added silc_client_command_reply_identify_save to save the
          received IDENTIFY entries.

        * Do not check for channel private keys in message sending and
          reception if the channel does not have the PRIVKEY mode set.
          Affected file lib/silclient/client_channel.c.

Sun Mar 11 20:25:06 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a minor bug if WHOIS and IDENTIFY command parsing that
          just surfaced after chaning the JOIN procedure.

Sun Mar 11 14:59:05 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_client_get_clients_by_list to get client entries
          from Client ID list, that is returned for example by JOIN
          and USERS command replies.  The application should use this
          function for example when JOIN command reply is received to
          resolve the clients already on the channel (library does not
          do that anymore as USERS command reply is not used in the JOIN
          procedure anymore).  Affected files lib/silcclient/silcapi.h and
          lib/silcclient/idlist.c.

        * JOIN command reply and USERS command reply returns now SilcBuffer
          pointers instead of unsigned char pointers when returning
          the client list and mode list.

        * Added <Client ID> argument to the JOIN command reply, mainly
          for the server to identify for which client the command was
          originally sent.  Updated protocol specs accordingly.

        * Added SilcDlist private_key pointer to the SilcChannelEntry
          in the client to support the channel private keys.  Affected
          file is lib/silcclient/idlist.h.

        * Added SilcChannelPrivateKey argument to the function
          silc_client_send_channel_message so that application can choose
          to use specific private ke if it wants to.  If it is not provided,
          the normal channel key is used, unless private keys are set. 
          In this case the first (key that was added first) is used 
          as the encryption key.

        * Implemented the support for channel private key handling.
          Implemented the following functions:

          silc_client_add_channel_private_key,
          silc_client_del_channel_private_keys,
          silc_client_del_channel_private_key,
          silc_client_list_channel_private_keys and
          silc_client_free_channel_private_keys

          Affected file lib/silcclient/client_channel.c.

        * Added the support for the private keys in the channel message
          sending and encryption and in the message reception and
          decryption.  Affected funtions are
          silc_client_send_channel_message and silc_client_channel_message.

Sat Mar 10 21:36:22 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SKE's key verify callback to the client library's
          KE protocol context. Affected files lib/silcclient/protocol.[ch].

        * Removed the statement that server (or router) must send USERS
          command reply when joining to the channel so that the client
          knows who are on the channel.  Instead, the client list and 
          client's mode list is now sent in the JOIN command reply to the
          client who joined channel.  This is better solution.

        * Added function silc_server_get_users_on_channel and function
          silc_server_save_users_on_channel to the silcd/server.[ch].

        * Removed function silc_server_command_send_users from the
          silcd/command.c.

        * Do not show topic on the client library anymore.  The topic is
          sent in the command reply notify to the application and the
          application must show the topic now.

Sat Mar 10 00:07:37 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added client searching by nickname hash into the IDENTIFY and
          WHOIS commands in the server as they were clearly missing from
          them.  Affected file is silcd/command.c.

        * Fixed a bug in private message receiving in the client library.
          The remote ID was freed and it wasn't supposed, now it is
          duplicated.

Fri Mar  9 12:40:42 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Minor fix to the channel payload; allocate the data area, as it
          needs to be of specific length.

        * If the key agreement port is zero then the operating
          system will define the bound port.  Affected files are
          lib/silcclient/silcapi.h and lib/silcclient/client_keyagr.c.

        * Added new function silc_channel_payload_decrypt into the file
          lib/silccore/silcchannel.[ch].

        * Moved the channel message etc, check from silc_packet_decrypt
          to applications.  The library calls now a generic 
          SilcPacketCheckDecrypt callback which is to return TRUE or FALSE
          when the packet is either normal or special.  This was done to
          allow more wide range of checking that was not allowed when
          the code was in library.  Now applications can do virtually any
          checks to the packet and return to the library the decision how
          the packet should be processed.  Affected files are
          lib/silccore/silcpacket.[ch].

          Added silc_server_packet_decrypt_check to the server and
          silc_client_packet_decrypt_check to the client library.

        * Added silc_server_packet_send_srcdest into silcd/packet_send.[ch]
          to send with specified source and destination information.

        * Channel message delivery between routers was broken after the
          channel key distribution was fixed earlier.  The channel key
          was used be to distributed to other routers as well which is not
          allowed by the protocol.  Now this is fixed and channel keys
          really are cell specific and the channel message delivery between
          routers comply with the protocol specification.

        * Fixed various commands in server to check also the global list
          for the channel entry and not just the local list.  The affected
          file silcd/command.c.

Thu Mar  8 21:39:03 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added assert()s to buffer formatting and unformatting routines
          to assert (if --enable-debug) when error occurs.  Affected
          file: lib/silcutil/silcbuffmt.c.

        * Changed to auto-reconnect to check whether the remote host is
          router and register the re-connect timeout if it is.  It used 
          to check that whether we are normal server, but router must do
          auto-reconnect with another router as well.  Affected file
          silcd/server.c.

        * Removed the [<key len>] option from CMODE command as the cipher
          name decides the key length, nowadays.  See the defined ciphers
          from the protocol specification.

        * Added [<hmac>] option to the CMODE command to define the HMAC
          for the channel.  Added SILC_CMODE_HMAC channel mode.

        * Added [<hmac>] option for the JOIN command so that user can
          select which HMAC is used to compute the MACs of the channel
          messages.

        * Added Hmac field to the Channel Message Payload.  The integrity
          of plaintext channel messages are now protected by computing
          MAC of the message and attaching the MAC to the payload.  The
          MAC is encrypted.  Now, it is clear that this causes some
          overhead to the size of the packet but rationale for this is that
          now the receiver can verify whether the channel message decrypted
          correctly and also when private keys are set for the channel the
          receiver can decrypt the packet with several keys and check from
          the MAC which key decrypted the message correctly.

        * Added silc_cipher_encrypt and silc_cipher_decrypt into the
          lib/silccrypt/silccipher.[ch].

        * Added silc_hash_len to return the digest length into the
          lib/silcrypt/silchash.[ch].

        * Rewrote parts of Silc Channel Payload interface in the
          lib/silccore/silcchannel.[ch].  The encode function now also
          encrypts the packet and parse function decrypts it.

Wed Mar  7 20:58:50 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a minor formatting bug in the SKE's key material processing.
          It actually might have processed the keys wrong way resulting
          into wrong keys.

        * Redefined the mandatory HMAC algorithms and added new algorithms.
          Added hmac-sha1-96 and hmac-md5-96 which are normal hmac-sha1
          and hmac-md5 truncated to 96 bits.  The mandatory is now 
          hmac-sha1-96.  Rest are optional (including the one that used
          to be mandatory).  Rationale for this is that the truncated HMAC
          length is sufficient from security point of view and can actually
          make the attack against the HMAC harder.  Also, the truncated
          HMAC causes less overhead to the packets.  See the RFC2104 for
          more information.

        * Added new [hmac] configuration section.  The SKE used to use
          the hash names (md5 and sha1) in the SKE proposal as HMCAS which
          is of course wrong.  The official names that must be proposed in
          the SKE are the ones defined in the protocol specification
          (hmac-sha1-96 for example).  The user can configure any hmac
          using any hash function configured in the [hash] section.  At
          least, the mandatory must be configured.

          Rewrote the HMAC interface in lib/silccrypt/silchmac.[ch].

        * Added HMAC list to the SKE proposal list.  It has now both
          hash algorithm list and HMAC list.  This makes the protocol
          incompatible with previous versions.  The SKE now seems to work
          the way it is supposed to work, for the first time actually.

        * Defined plain Hash algorithms to the protocol specification.
          Added sha1 and md5.

Tue Mar  6 15:36:11 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented support for key agreement packets into the server.
          Added functions silc_server_key_agreement and
          silc_server_send_key_agreement.  Other than these functions,
          server has nothing to do with this packet.

        * Added support for private message key packets into the server.
          Added functions silc_server_private_message_key and
          silc_server_send_private_message_key.

        * Updated TODO.

        * Changed the silc_[client|server]_protocol_ke_set_keys to be
          called in the protocol's final callback instead in the END
          protocol state.  This makes a little more sense and in the same
          time in client we can use the same protocol routines for normal
          key exchange and to key agreement packet handling as well.

        * Added to both client's and server's KE protocol context the
          SilcSKEKeyMaterial pointer to save the key material.  We will
          bring the key material to the protocol's final callback by doing
          this.  The final callback must free the key material.

        * Added SKE's packet_send callback into client's KE protocol
          context so that the caller can choose what packet sending function
          is used.  This way we can use different packet sending when
          doing normal SKE when doing key agreement packet handling (in
          the key agreement packet handling we do not want to encrypt
          the packets).

        * Implemented the responder side of the key agreement routines
          in the client.  The client can now bind to specified port and
          accept incoming key negotiation.  The key material is passed
          to the application after the protocol is over.

        * Implemented the processing of incoming Key Agreement packet
          in the client.  Added function silc_client_key_agreement to
          process the packet.

        * Implemented the intiator side of the key agreement routines
          in the client.  The client can now initiate key agreement with
          another remote client.  The key material is passed to the
          application after the protocol is over.

        * Created client_keyagr.c to include all the key agreement 
          routines.

        * Added macro SILC_TASK_CALLBACK_GLOBAL which is equal to the
          SILC_TASK_CALLBACK except that it is not static.

        * Created client_notify.c and moved the Notify packet handling
          from the client.[ch] into that file.

        * Created client_prvmsg.c and moved all private message and
          private message key routines from the client.[ch] into that file.

        * Create client_channel.c and moved all channel message and
          channel private key routines from the client.[ch] into that file.

        * Changed silc_client_get_client_by_id_resolve to resolve with
          WHOIS command instead of IDENTIFY command, in the file
          lib/silclient/idlist.c.

Mon Mar  5 18:39:49 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented the SKE's responder side to the Client library.

        * When FAILURE is received to the protocol do not trust it
          blindly.  Register a timeout to wait whether the remote closes
          the connection as it should do it, only after that process the
          actual failure.  This was changed to both client and server.

        * Added client_internal.h to include some of the structures
          there instead of client.h in lib/silcclient/.

        * Added function silc_task_unregister_by_callback to unregister
          timeouts by the callback function.

Sat Mar  3 19:15:43 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Some "Incomplete WHOIS info" errors has been appearing on the
          log files.  Took away the entry->userinfo check from WHOIS
          reply sending.  The entry->userinfo is now " " if client did not
          provide one.  I thought this was fixed earlier but something
          is wrong still.  Let's see if the error still appears.

Wed Feb 28 20:56:29 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a minor bug in the login when the channel key is
          re-generated in the server.  It used to generate the key in
          wrong order and thus caused problems in the channel traffic.

        * Fixed a minor bug in channel key distsribution after
          KICK command.  The key was not sent to the router even though
          it should've been.

Tue Feb 27 20:24:25 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_ske_process_key_material_data as generic routine
          to process any key material as the SILC protocol dictates.  The
          function is used by the actual SKE library but can be used by
          applications as well.  This relates to the private message keys
          and the channel private keys since they must be processed the
          same way the normal SILC session keys.  The protocol dictates
          this.  Affected files: lib/silcske/silcske.[ch].

          Added also silc_ske_free_key_material to free the
          SilcSKEKeyMaterial structure.

        * Defined silc_cipher_set_key function to set the key for
          cipher without using the object's method function.  The affected
          files: lib/silccrypt/silccipher.[ch].

        * Implemented silc silc_client_add_private_message_key,
          silc_client_add_private_message_key_ske, 
          silc_client_del_private_message_key,
          silc_client_list_private_message_keys and
          silc_client_free_private_message_keys functions in the
          client library.

          Added functions silc_client_send_private_message_key to send
          the Private Message Key payload and silc_client_private_message_key
          to handle incoming Private Message Key payload.

        * Added Cipher field to the Private Message Key payload to set
          the cipher to be used.  If ignored, the default cipher defined
          in the SILC protocol (aes-256-cbc) is used.

Tue Feb 27 13:30:52 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Removed lib/silcclient/ops.h file.

          Redefined parts of the SILC Client Library API. Created new
          file silcapi.h that deprecates the ops.h file and defines the
          published Client Library API.  Defined also private message key
          API and channel private key API into the file.

          This is the file that the application must include from the
          SILC Client Library.  Other files need not be included by
          the application anymore.

        * Added new key_agreement client operation callback and also
          defined the Key Agreement library API for the application.

Tue Feb 27 11:28:31 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new packet type: SILC_PACKET_KEY_AGREEMENT.  This packet
          is used by clients to request key negotiation  between another
          client in the SILC network.  If the negotiation is started it
          is performed using the SKE protocol.  The result of the
          negotiation, the secret key material, can be used for example
          as private message key.

          Implemented the Key Agreement payload into the files
          lib/silccore/silauth.[ch].

Mon Feb 26 12:13:58 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Redefined ciphers for the SILC protocol.  Added some new ciphers
          and defined the key lengths for the algorithms.  Changed the
          code accordingly.  The default key length is now 256 bits.

        * Fixed SKE key distribution function silc_ske_process_key_material
          when the key length is more than 128 bits.  The default key 
          length in SILC is now 256 bits.

        * Added new command status type: SILC_STATUS_ERR_UNKOWN_ALGORITHM
          to indicate unsupported algorithm.

        * Renamed rijndael.c to aes.c and all functions as well.

        * Fixed a long standing channel key setting bug in client library.
          Weird that it has never surfaced before.

        * Fixed bug in channel deletion.  If the entire channel is removed
          then it must also delete the references of the channel entry
          from the client's channel list as the client's channel entry and
          the channel's client entry share same memory.

Sun Feb 25 20:47:29 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented CONNECT and SHUTDOWN commands in the client.

        * Implemented CLOSE command to the client.

        * Added the function silc_idlist_find_server_by_name into the
          files silcd/idlist.[ch].

          Added the function silc_idlist_find_server_by_conn into the
          files silcd/idlist.[ch].

Sat Feb 24 23:45:49 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * DIE command was renamed to SHUTDOWN.  Updated the both code
          and protocol specs.

        * Defined SILC_UMODE_NONE, SILC_UMODE_SERVER_OPERATOR and
          SILC_UMODE_ROUTER_OPERATOR modes into lib/silccore/silcmode.h.

        * Implemented CONNECT, CLOSE and SHUTDOWN commands to the server
          side.

        * Added function silc_server_create_connection function to create
          connection to remote router.  My server implementation actually
          does not allow router to connect to normal server (it expects
          that normal server always initiates the connection to the router)
          so the CONNECT command is only good for connecting to another
          router.

Sat Feb 24 16:03:45 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SILC_NOTIFY_TYPE_KICKED to indicate that the client
          or some other client was kicked from the channel.

          Implemented the handling of the notify type to both client
          and server.

          Implemented silc_server_send_notify_kicked to send the KICKED
          notify.  It is used to send it to the server's primary router.

        * Implemented the KICK command into server and client.

        * Added `query' argument to the silc_idlist_get_client function
          to indicate whether to query the client from server or not if
          it was not found.

        * Added new command status type SILC_STATUS_ERR_NO_CHANNEL_FOPRIV
          to indicate that the client is not channel founder.

        * Updated TODO.

Sat Feb 24 00:00:55 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Removed the rng context from SilcPacketContext structure and
          changed that the packet routine uses the Global RNG API.

Fri Feb 23 11:22:57 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added support for quit message that client can "leave" on the
          channel when it quits the SILC.  It is ditributed inside the
          SILC_NOTIFY_TYPE_SIGNOFF notify type.

          Added silc_server_free_client_data that will take the
          signoff message as argument.

        * Changed SKE routines to use the silc_pkcs_sign/verify routines.

Thu Feb 22 23:05:36 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Updated parts of the protocol specification to keep it up
          to date.

Thu Feb 22 15:08:20 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
          payloads in one packet.

        * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
          NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST.  List packets
          use now the new List flag.

        * Also deprecated the following packet types: REPLACE_ID,
          NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
         
        * Added list support for Notify packet in server.

        * Added silc_server_send_notify_channel_change to send the
          CHANNEL_CHANGE notify type to replace channel ID's.  Deprecates
          the silc_server_send_replace_id.

        * Added silc_server_send_notify_nick_change to send the
          NICK_CHANGE notify type.  Deprecates the function
          silc_server_send_replace_id.

        * Added silc_server_send_notify_join to send the JOIN notify type.
          Deprecates the function silc_server_send_new_channel_user.

        * Added silc_server_send_notify_leave to send LEAVE notify type.
          Deprecates the function silc_server_send_remove_channel_user.

        * Added silc_server_send_notify_cmode and 
          silc_server_send_notify_cumode to send CMODE and CUMODE notify
          types.  Deprecates the silc_server_send_set_mode function.

        * Added SERVER_SIGNOFF notify type to indicate that server has
          quit.  This means that all clients on the channel from that 
          server will drop.  This can be also used when netsplit happens.

          Deprecated REMOVE_ID packet type since it is not needed anymore
          even from server.

          Added silc_server_send_notify_server_signoff to send the
          SERVER_SIGNOFF notify type.  Deprecates the function
          silc_server_send_remove_id.

          Added also silc_server_send_notify_signoff to send the
          SIGNOFF notify type.

        * Employed the PKCS #1. It is the mandatory way to do RSA in the
          SILC protocol from this day on.  Changed the protocol 
          specification as well.

        * Added silc_server_send_notify_topic_set to send TOPIC_SET
          notify type.  It is used between routers to notify about
          topic changes on a channel.

        * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
          ID data.

        * Partly updated the protocol specification to comply with the
          changes now made.  It is still though a bit outdated.

        * The JOIN notify type now takes one extra argument <Channel ID>.
          The packet used to be destined to the channel but now the
          JOIN type may be sent as list thus it is impossible to 
          destine it to any specific channel.  By adding this argument
          it is again possible.

Wed Feb 21 22:39:30 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added CREDITS file.  The CHANGES and CREDITS file will appear
          in the distribution as well.

Wed Feb 21 14:17:04 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
          types in the server's silcd/packet_receive.c.

        * Implemented CMODE and CUMODE to work in router environment.

        * Fixed minor encoding and decoding buglet from the
          lib/silccore/silcmode.c.

        * Fixed buffer overflow from lib/silcclient/command.c in USERS
          command parsing.

Wed Feb 21 12:44:00 EET 2001  Mika Boström <bostik@lut.fi>

        * Changed all SilcConfigServer* and silc_config_server* to
          SilcServerConfig* and silc_server_config*, respectively.
          Patch by Bostik.

Wed Feb 21 00:10:00 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Associated the ID (client or server ID) to the Authentication
          Payload to avoid any possibility of forging.  Updated the
          protocol specification and the code accordingly.

Tue Feb 20 14:14:14 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * The RSA key length is now save to the RsaKey context in the
          key generation process in lib/silccrypt/rsa.c.  The key length
          is now used to figure out the maximum size of the block allowed
          to be encrypted/signed.

        * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch].  It
          is equivalent to the silc_mp_mp2bin but does not allocate any
          memory.

        * Changed silc_mp_mp2bin API to take length argument.  If it is
          non-zero then the buffer is allocated that large.  If zero, then
          the size is approximated using silc_mp_sizeinbase, which however
          is not relieable.

        * Created Global RNG API which is global RNG that application can
          initialize.  After initializing, any routine anywhere in the
          code (including library) can use RNG without allocating a new
          RNG object.  This was done to allow this sort of use of the 
          RNG in code that has no chance to allocate RNG object.  All
          applications currently allocate this and many routines in the
          library use this.  Affected file lib/silccrypt/silcrng.[ch].

        * Removed the RNG kludge from lib/silcmath/primegen.c and changed
          it to use the Global RNG API.

        * Defined Authentication Payload into protocol specification that
          is used during SILC session to authenticate entities.  It is
          used for example by client to authenticate itself to the server
          to obtain server operator privileges.

          Implemented this payload into the lib/silccore/silcauth.[ch].
          Implemented also routines for public key based authentication
          as the new protocol specification dictates.

          Moved definitions of different authentication methods from
          lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.

        * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
          silc_pkcs_verify and silc_pkcs_sign_with_hash and
          silc_pkcs_verify_with_hash functions into the file 
          lib/silccrypt/silcpkcs.[ch].

Mon Feb 19 19:59:28 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * The client entry's userinfo pointer must be always valid. 
          Otherwise the [<unknown>] bug will surface beacuse the WHOIS
          will fail since it requires the userinfo.  Now, the userinfo
          is allocated as "" if actual userinfo does not exist.  Actually,
          it must exist and it is totally Ok to drop client connections
          that does not announce the userinfo.  However, we will make
          this workaround for now.

        * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
          to return the remote port by socket.

Mon Feb 19 14:26:49 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
          SILC_SERVER_PENDING_EXEC and added an new macro
          SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
          data or when error occurs while processing the pending command.

          Added new argument `destructor' into silc_server_command_pending
          and to the SilcServerCommandPending object.  This destructor is
          now called after calling the pending callback or if error occurs
          immediately.  If error occurs the actual pending callback won't
          be called at all - only the destructor.  The destructor may be
          NULL if destructor is not needed.

          All this applies for client library code as well.  Similar
          changes were made there as well for the pending commands.

          In the client, the application must now allocate the 
          SilcClientCommandContext with the silc_client_command_alloc
          function.

        * Added reference counter to the SilcServerCommandContext.  Added
          function silc_server_command_alloc and silc_server_command_dup 
          functions.

          Same type of functions added to the client library for the same
          purpose as well.

        * Removed the cmd_ident from IDListData away since it is now 
          global for all connections.  It is the command identifier used
          in command sending and with pending commands.  The affected file
          is silcd/idlist.h.

        * Added reference counter to the SilcSocketConnection objecet to
          indicate the usage count of the object.  The object won't be
          freed untill the reference counter hits zero.  Currently only
          server uses this, and client ignores it.  The client must be
          set to use this too later.  The affected files are
          lib/silccore/silcsockconn.[ch].  Added also the function
          silc_socket_dup to increase the reference counter.

          This was mainly added because it is possible that the socket
          is removed underneath of pending command or other async
          operation.  Now it won't be free'd and proper DISCONNECTING
          flags, etc. can be set to avoid sending data to connection that
          is not valid anymore.

        * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
          the connection.  After that it sets SILC_SET_DISCONNECTED.
          It is, however, possible that the socket data is not still freed.
          The silc_server_packet_process now checks that data is not
          read or written to connection that is DISCONNECTED.  The socket
          get's freed when the reference counter hits zero.

Mon Feb 19 00:50:57 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed the client operation API: channel_message operation's
          `sender' is now the client entry of the sender, not the nickname
          and the `channel' is the channel entry, not the channel name.

          In the private_message operation the `sender' is now also the
          client entry of the sender not the nickname.

          Affected file is lib/silcclient/ops.h and all applications
          using the client operations.

Sat Feb 17 22:11:50 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Moved the calling of ops->connect() from connect_to_server_final
          into receive_new_id functin since that is the point when the
          client is actually allowed to send traffic to network.  The
          affected file is lib/silcclient/client.c.

Sat Feb 17 13:15:35 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
          NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
          (if needs broadcasting) instead of broadcasting the packets one
          by one which would make a burst in the network traffic.

        * Added `broadcast' argument to the functions in silcd/server.[ch]
          silc_server_create_new_channel[_with_id] to indicate whether
          to send New Channel packet to primary router.

Sat Feb 17 01:06:44 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new function into the silcd/server.[ch] files:
          silc_server_create_new_channel_with_id to create new channel with
          already existing Channel ID.

        * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
          lib/silccore/silcpacket.h.  This packet is used t send list of
          Set Mode payloads inside one packet.  Server uses this to set
          the modes for the channels and clients on those channels, that it
          announced to the router when it connected to it.  The protocol
          specification has been updated accordingly.

        * The silc_server_new_channel did not handle the packet coming
          from normal server as it normally does not send that.  However,
          when it announces its channels it does send it.  Implemented
          the support for that.

        * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
          into the file lib/silccore/id.h.

Fri Feb 16 23:57:29 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed memory leaks in the functions silc_idlist_del_client,
          silc_idlist_del_channel and silc_idlist_del_server in the file
          silcd/idlist.c.  All of those leaked like a sieve.

        * Fixed some small memory leaks in the client's function
          silc_client_notify_by_server.

        * Added functions into silcd/server.c: silc_server_announce_clients,
          silc_server_announce_channels and silc_server_announce_server.
          These functions are used by normal and router server to announce
          to its primary router about clients, channels and servers (when
          router) that we own.  This is done after we've connected to the
          router.

          These functions effectively implements the following packet types:
          SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
          and SILC_PACKET_NEW_ID_LIST.

        * Added new functions into the silcd/packet_receive.[ch]:
          silc_server_new_id_list, silc_server_new_channel_list and
          silc_server_new_channel_user_list to handle the incoming 
          NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.

        * Added support of changing Channel ID in the function
          silc_server_replace_id.  If the server that announces a channel
          to the router already exists in the router (with same name but
          with different Channel ID), router is responsible to send
          Replace ID packet to the server and force the server to change
          the Channel ID to the one router has.

        * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
          client that the Channel ID has been changed by the router.  The
          normal server sends this to the client.  Client must start using
          the new Channel ID as the channel's ID.

          Implemented handling of this new type into lib/silcclient/client.c
          into the function silc_client_notify_by_server.

        * Added new function silc_idlist_replace_channel_id into the files
          silcd/idlist.[ch] to replace the Channel ID.

Fri Feb 16 14:14:00 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Call silc_server_command_identify_check always when processing
          the IDENTIFY command in silcd/command.c

Thu Feb 15 20:07:37 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new packet type SILC_PACKET_HEARTBEAT that is used to
          send keepalive packets.  The packet can be sent by clients, 
          servers and routers.

          Added function silc_socket_set_heartbeat into the file
          lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
          If not set, the heartbeat is not performed.  The actual 
          heartbeat is implemented in the low level socket connection
          library.  However, application is responsible of actually
          sending the packet.

          Added silc_server_send_heartbeat to send the actual heartbeat
          packet into silcd/packet_send.[ch].  Server now performs
          keepalive with all connections.

        * Added silc_task_get_first function into lib/silcutil/silctask.c
          to return the timeout task with shortest timeout.  There was a bug
          in task unregistration that caused problems.  TODO has been
          updated to include that task system must be rewritten.

        * The client library will now resolve the client information when
          receiving JOIN notify from server for client that we know but
          have incomplete information.

        * Rewrote parts of silc_server_remove_from_channels and
          silc_server_remove_from_one_channel as they did not remove the
          channel in some circumstances even though they should've.

        * Encryption problem encountered in server:

          The LEAVE command used to send the Channel Key packet to the
          router immediately after generating it.  However, the code
          had earlier sent Remove Channel user packet but not immediately,
          ie. it was put to queue.  The order of packets in the router
          was that Channel Key packet was first and Remove Channel User
          packet was second, even though they were encrypted in the
          reverse order.  For this reason, MAC check failed.  Now, this
          is fixed by not sending the Channel Key packet immediately but
          putting it to queue.  However, this is more fundamental problem:
          packets that are in queue should actually not be encrypted 
          because packets that are sent immediately gets encrypted
          actually with wrong IV (and thus MAC check fails).  So, packets
          that are in queue should be encrypted when they are sent to
          the wire and not when they put to the queue.

          However, the problem is that the current system has not been
          designed to work that way.  Instead, the packet is encrypted
          as soon as possible and left to the queue.  The queue is then
          just purged into wire.  There won't be any fixes for this
          any time soon.  So, the current semantic for packet sending
          is as follows:

          o If you send packet to remote host and do not force the send
          (the packet will be in queue) then all subsequent packets to the
          same remote host must also be put to the queue.  Only after the
          queue has been purged is it safe again to force the packet
          send immediately.

          o If you send all packets immediately then it safe to send
          any of subsequent packets through the queue, however, after
          the first packet is put to queue then any subsequent packets
          must also be put to the queue.

          Follow these rules and everything works fine.

Thu Feb 15 14:24:32 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new function silc_server_remove_clients_by_server to
          remove all client entries from ID list when the server connection
          is lost.  In this case it is also important to invalidate all
          client entires as they hold the invalid server entry.  This
          fixes fatal bug when server has lost connection and will reconnect
          again.

Wed Feb 14 16:03:25 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Made some sanity checks to silc_server_daemonise like to check
          whether the requested user and group actually exists.

        * Added sanity check to SKE's silc_ske_responder_finish to check
          that the public and private key actually is valid. 

        * Invalidate the client's nickname when receiving Replace ID
          packet and the Client ID is being replaced.  This means that the
          server will query the nickname if someone needs it (client)
          a bit later.

        * Sort the ID Cache in client library when the ID Cache data
          has changed (needs sorting).

        * Do not allow for SILC client to create several connections to
          several servers.  The client does not support windows right now
          and generating multiple connections causes weird behaviour.

          Irssi-silc client does support windows and can handle several
          connections without problems, see: www.irssi.org and SILC plugin.

        * Fixed some places where client was added to the IDList.  The
          rule of thumb is following (in order to get everything right):
          If the client is directly connected local client then the 
          `connection' argument must be set and `router' argument must be 
          NULL to silc_idlist_add_client function.  If the client is not
          directly connected client then the `router' argument must
          bet set and the `connection' argument must be NULL to the
          silc_idlist_add_client function.

        * The funtion silc_server_packet_send_local_channel actually did
          not check whether the client was locally connected or not.  It
          does that now.  Fixed a bug related to LEAVE command.

        * Fixed Remove Channel User payload parsing bug in server's
          silcd/packet_receive.c.  Fixed a bug related to LEAVE command.

        * The server's silc_server_save_channel_key now checks also the
          global ID list for the channel as it might not be in the local
          list.  Fixed a bug related to LEAVE command.

        * Is this the end of the [<unknown>] buglet that has been lurking
          around for a long time?  A little for loop fix in server's
          silc_server_command_whois_parse that is used by both IDENTIFY
          and WHOIS command.  At least, this was a clear bug and a cause
          of one type of [<unknown>] buglet.

        * WHOIS and IDENTIFY commands call the function
          silc_server_command_[whois/identify]_check function even if
          we are not router server.

Tue Feb 13 19:55:59 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added --with-gmp configuration option.  If set the GMP
          is always compiled in the SILC source tree.  If not set then
          it is checked whether the system has the GMP3 installed.  If
          it has then the GMP won't be compiled (the system's headers
          and library is used), if it doesn't have it then the GMP is
          compiled in the SILC source tree.

Mon Feb 12 11:20:32 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed RSA private exponent generation to what PKCS #1
          suggests.  We try to find the smallest possible d by doing
          modinv(e, lcm(phi)) instead of modinv(e, phi).  Note: this is
          not security fix but optimization.

Sun Feb 11 18:19:51 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new config entry [Identity] to fork the server and run
          it as specific user and group.  A patch from Bostik.

        * Imported Dotconf configuration library into lib/dotconf.
          This will be used to create the SILC configuration files later.
          It will appear in the distsribution after this commit.

Sat Feb 10 21:13:45 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * A big code auditing weekend happening.  Auditing code for 
          obvious mistakes, bugs and errors.  Also, removing any code
          that is obsolete.

          Removed files for being obsolete:

          o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
          inline in the file lib/silcutil/silcbuffer.h)

          o lib/silcutil/silcbufutil.c (the header has inline versions)

          Changed code to fix possible error conditions:

          o The buffer formatting routines now check that the destination
          buffer really has enough space to add the data.  This applies for
          both buffer formatting and unformatting 
          (lib/silcutil/silcbuffmt.[ch]).  Also, the entire buffer
          unformatting was changed to accomodate following rules: 
          XXX_*STRING_ALLOC will allocate space for the data into the pointer
          sent to the function while XXX_*STRING will not allocate or copy 
          the data into the buffer.  Instead it sets the pointer from the
          buffer into the pointer sent as argument (XXX_*STRING used to
          require that the pointer must be allocated already).  This change
          makes this whole thing a bit more consistent and more optimized
          (note that the data returned in the unformatting with XXX_*STRING
          must not be freed now).  The routines return now -1 on error.

          o Tried to find all code that use buffer_format and buffer_unformat
          and added return value checking to prevent formatting and
          especially unformatting errors and possible subsequent fatal
          errors.

          o Changed ske->x and ske->KEY to mallocated pointers in
          lib/silcske/silcske.h.  Fixed possible data and memory leak.

          o Added return value checking to all *_parse* functions.  Fixed
          many memory leaks as well.

          o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
          so that buffer overflows would not happen.  All code now also
          checks the return value as it can fail.

Mon Feb  5 20:08:30 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added reconnection support to server if the normal server looses
          its connection to the router (for example if router is rebooted).
          The server performs normal reconnection strategy implemented
          to the server.  Affected file silcd/server.c.

Sun Feb  4 13:18:32 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new packet type SILC_PACKET_SET_MODE that is used to
          distribute the information about changed modes (for clients,
          channels and clients channel modes) to all routers in the
          network.  Updated the protocol specification accordingly.

          Added functions into silcd/packet_send.c and 
          silcd/packet_receive.c: silc_server_send_set_mode, 
          silc_server_set_mode.

          Added new files silcmode.[ch] into lib/silccore that implements
          the encoding and decoding of Set Mode Payload.  Added new type
          SilcSetModePayload.  Moved the definitions of different modes
          from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.

Sat Feb  3 15:44:54 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Oops, a little mistake in server's connection authentication 
          protocol.  The protocol is not ended with FAILURE but with
          SUCCESS if the authentication is Ok. :)  Affected file is
          silcd/protocol.c.

        * Implemented NICK_CHANGE notify handling in server in the file
          silcd/packet_receive.c  The NICK_CHANGE notify is distributed to
          the local clients on the channel.  After the changing nickname
          in router environment snhould work and the [<unknown>] nickname
          should appear no more.
 
          The silc_server_replace_id function that receives the Replace ID
          payload now sends the NICK_CHANGE notify type also in the file
          silcd/packet_receive.c

        * Changed WHOIS and IDENTIFY command to support the maximum amount
          of arguments defined in protocol specs (3328 arguments).  This 
          fixed a bug that caused problems when there were more than three
          users on a channel.

Fri Feb  2 11:42:56 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added extra parameter, command identifier, to the
          silc_client_send_command so that explicit command identifier
          can be defined.

          Changed that ID list routines uses specific command identifier
          when sending WHOIS/IDENTIFY requests to the server so that they
          can be identified when the reply comes back.

          Affected files lib/silcclient/command.[ch],
          lib/silcclient/client.c and lib/silcclient/idlist.[ch].

        * Added `sender' argument to silc_server_packet_send_to_channel
          to indicaet the sender who originally sent the packet to us
          that we are now re-sending.  Ignored if NULL.  Affected file
          silcd/packet_send.[ch].

        * Added some server statistics support in silcd/server_internal.h
          SilcServerStatistics structure and around the server code.  Also
          send some nice statistics information when client is connecting
          to the client.

Thu Feb  1 23:31:21 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed channel ID decoding in server's JOIN command reply in
          silcd/command_reply.c

        * Fixed braodcasting of replace ID payload to not to send it if
          we are standalone server in silcd/packet_receive.c.

        * Fixed all channel message sending routines to not to send
          packets to clients that has router set, since they are routed
          separately in the same function earlier.  Affects file
          silcd/packet_send.c and all channel packet sending functions.

        * In USERS reply, res_argv[i] are not allocated, the table
          is allocated.  Thus changed that free the table, not its
          internals.

        * In server's whois_check and identify_check if the client is
          locally connected do not send any WHOIS commands - they are not
          needed.

Thu Feb  1 21:32:27 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed some minor bugs in client when sending WHOIS command.  The
          arguments was in wrong order.

        * Removed statis function add_to_channel from server in 
          silcd/command.c that was previously used with the joining but
          is obsolete now.

        * Tested USERS command in router environment successfully with two
          routers, two servers and two clients.

Thu Feb  1 00:54:26 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Reorganized the USERS command and command reply in client library
          in lib/silcclient/command.c and lib/silcclient/command_reply.c.
          When the command is given by user we register a pending command
          callback that will reprocess the command after the reply has been
          received from the server.  When reprocessing the packet we then
          display the information.  Thus, the USERS information is displayed
          now in the command callback instead of in the command reply
          callback.  The processing of the command is same as previously
          when server has sent the command reply in the JOINing process.

        * Added to USERS command in silcd/command_reply.c to join the client,
          we didn't use to know about, to the channel after we've created
          a client entry for it.  Also, for clienet we did know already still
          check whether it is on the channel or not and add it if not.

        * Removed silc_server_command_join_notify as the function and its
          use was obsolete.

Tue Jan 30 22:39:15 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed the client's pending command handling to the same as the
          server's pending command handling.  It is also now possible to
          execute command reply functions from other command reply
          function as the function callbacks for commands and command
          replies are one and same.  The pending commands are not static
          list anymore, it is mallocated SilcDList in lib/silcclient/client.h
          in client connection context.  Thus, pending commands are server
          connection specific as it is convenient.

          Changed the function silc_client_command_pending and
          silc_client_command_pending_del and added new function
          silc_client_command_pending_check.  Removed the 
          SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
          macros.

        * Added cmd_ident, current command identifier, to the client
          connection context in lib/silcclient/client.h to keep track on
          command identifiers used in command sending.  Client's command reply
          function handling now supports the mandatory command identifiers.

        * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
          funtions in client to fully support pending command callbacks.

        * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
          as one of the arguments to the application in the command reply
          client operation.

        * NOTE: The FORWARDED flag is depracated.  It used to be depracated
          before first releasing SILC but came back.  Now it is removed again
          and should come back nomore.  The FORWARDED flag was used only
          by the JOINing procedure by forwarding the command packet to router.
          Now, the JOINing procedure has been changed to more generic (due
          to various router environment issues) and FORWARDED is not needed
          anymore for anything.  The protocol specification is yet to be
          updated.

          Now, removed silc_server_packet_forward from server and the flag
          SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.

Tue Jan 30 00:05:05 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Renamed NAMES command to USERS command.  The NAMES was named that
          due to historical reasons.  Now it is renamed.  Also, rewrote
          parts of the USERS command.  The nickname list is not sent anymore
          by the server.  Only Client ID and mode lists are sent in the USERS
          command.  Changed this also to the protocol specification.

          The client now resolves the names and stuff after it receives
          the USERS list from the server when joining to the channel.

        * WHOIS and IDENTIFY commands has been changed to support multiple
          Client ID's per command.  One can now search for multiple users
          in the network by sending only one WHOIS or IDENTIFY command.
          Changed the code and the protocol specifications.

        * Removed silc_server_command_identify_parse and changed that IDENTIFY
          uses silc_server_command_whois_parse to parse the request. */

        * If normal server, do not parse the WHOIS and IDENTIFY requests
          before sending it to the router.  Saves some time.

Sun Jan 28 16:19:49 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed JOIN command on client library.  Wrong number of arguments
          used to crash the client.

        * Added silc_server_channel_has_global function to check whether
          channel has global users or not.

        * Added silc_server_channel_has_local function to check whether channel
          has locally connected clients on the channel.

        * The silc_server_remove_from_one_channel now checks whether the
          channel has global users or not after given client was removed from
          the channel.  It also checks whether the channel has local clients
          on the channel anymore.  If it does not have then the channel entry
          is removed as it is not needed anymore.

        * The silc_server_notify now checks on JOIN notify whether the joining
          client is one of locally connected or global.  If it is global then
          the channel has now global users on the channel and that is marked
          to the channel entry.  Also, it now saves the global client to
          global list who is joining and JOINs it to the channel.  This is
          for normal server, that is.

          Changed silc_server_send_notify_on_channel, 
          silc_server_packet_relay_to_channel and 
          silc_server_packet_send_to_channel check if we are normal server
          and client has router set (ie. global client) do not send the
          message to that client, as it is already routed to our router.

        * Implemented LEAVE notify type handling in silc_server_notify 
          function.

        * Tested LEAVE command in router environment successfully.  Tested
          with two routers, two servers and two clients.

        * Updated TODO.

        * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.

        * Implemented SIGNOFF notify type handling in silc_server_notify
          function.

        * silc_server_remove_id now removes the client entry from all channels
          it has joined and thusly sends SIGNOFF notify type.

        * Rewrote the NAMES list generation in server by removing two excess
          loops.  The lists are created now inside one loop.

Sat Jan 27 22:34:56 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * silc_server_remove_channel_user checks now also global list
          for channel and client.

        * silc_server_new_channel_user checks now both local and global
          list for channel and client.  Fixed a bug in client id decoding.
          Used to decode wrong buffer.

        * silc_server_channel_message checks now both local and global
          list for channel entry.

        * Tested channel joining (hence JOIN) in router environment
          successfully.  Tested with two routers, two servers and two
          clients.

        * Tested channel message sending in router environment successfully.

Thu Jan 11 03:22:57 EET 2001  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_server_save_channel_key into server.[ch] to save the
          received channel key in Channel Key payload processing. It is
          also used in JOIN command reply handling.

          Equivalent function silc_client_save_channel_key added into
          client.[ch] into client library.

        * Changed JOIN command reply to send information whether the channel
          was created or not (is existing already) and the channel key 
          payload.  Changed protocol specs accordingly.

        * Fixed bugs in WHOIS and IDENTIFY command reply sending when
          the request was sent by ID and not by nickname.  Crashed on
          NULL dereference.

Sat Dec 23 21:55:07 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a bug in Client library.  IDENTIFY and WHOIS reply functions
          now correctly save the received data.

        * silc_server_free_sock_user_data now notifies routers in the 
          network about entities leaving the network.

          At the same time implemented functions silc_server_remove_id
          and silc_server_send_remove_id to receive and send REMOVE_ID
          packets.  The packet is used to notify routers in the network
          about leaving entities.  The ID removed will become invalid in
          the network.

        * Added function silc_idlist_del_server into server. Removes and
          free's server entry from ID list.

        * silc_server_private_message function now checks, if we are router,
          that the destination ID really is valid ID, naturally.

        * In router when NEW_ID packet is received (for new client) the
          hash of the Client ID is saved in the ID Cache but the
          client->nickname is set to NULL, instead of putting the hash
          to it as well.

          IDENTIFY command now also checks that client->nickname must be
          valid. If it is not if will request the data from the server who
          owns the client.  Added new function 
          silc_server_command_identify_check.

        * Added silc_command_set_command into lib/silccore/silcommand.[ch]
          to set the command to already allocated Command Payload.

        * Tested private message sending in router environment with two
          routers, two servers and two clients.  Fixed minor bugs and now
          it works fine.

        * Fixed segfault from client's NAMES command. Used to crash if
          not on any channel.

        * Forwarded packets must not be routed even if it is not destined
          to the receiver.  Changed server code comply with this.

Sun Dec 17 14:40:08 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added `require_reverse_mapping' boolean value to ServerParams
          structure. If TRUE (not default) the server will require that
          the connecting host has fully qualified domain name.

          If the reverse mapping is not required and hostname could not be
          found the IP address is used as hostname.

Sat Dec 16 17:39:54 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented version string checking to both client and server.
          The check is incomplete currently due to the abnormal version 
          strings used in development version of SILC.

        * Changed all command functions in server to use the new
          CHECK_ARGS macro.

Fri Dec 15 15:55:12 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed char *data to unsigned char *data in ID Cache system to
          support binary data as ID Cache data. Changed code to support
          binary data in lib/silccore/idcache.c.

        * Renamed silc_server_packet_relay_command_reply to 
          silc_server_command_reply as it is normal packet receiving
          function. Rewrote the function to accept command replys for
          servers and not only for clients.

        * Mark remote router always as registered server if we are connecting
          to it.  Otherwise, commands sent by the router to us are ignored.

        * All ID List find routines now returns the ID Cache Entry pointer
          as well if requested.

        * WHOIS command works now in router environment, tested with two
          routers, two servers and two clients.

        * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
          in router environment (as it is almost equivalent to WHOIS) but
          hasn't been tested thoroughly.  Added new functions:

          silc_server_command_identify_parse
          silc_server_command_identify_send_reply
          silc_server_command_identify_from_client
          silc_server_command_identify_from_server

        * Disabled route cache adding because adding two different ID's with
          same IP replaces the old cache entry thus giving wrong route.
          The entry->router->connection is always the fastest route anyway
          so route cache may not be needed.  Of course, new routes maybe
          established after receiving the ID when the entry->router->connection
          might not be anymore the most optimal.

Thu Dec 14 15:55:35 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Add route cache for received ID for fast routing.

        * Added silc_server_packet_route to route received packet on router
          that is not destined to us.

        * Renamed silc_server_get_route to silc_server_route_get.

        * Added id_string and id_string_len fields into SilcServer to
          include encoded ServerID for fast comparing without excess
          encoding of the ID's.

        * Cleaned up WHOIS command on server side. Added following static
          functions:

          silc_server_command_whois_parse
          silc_server_command_whois_check
          silc_server_command_whois_send_reply
          silc_server_command_whois_from_client
          silc_server_command_whois_from_server

        * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
          arguments in command replies. All command functions should be
          updated to use this macro.

Sun Dec 10 23:52:00 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Minor typo fixes on command reply handling on server.

Tue Nov 28 11:05:39 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_server_command_add_to_channel internal routine to add
          the client to the channel after router has created the channel and
          sent command reply to the server.

        * Added generic silc_server_send_command to send any command from
          server.

        * Use static buffer with ID rendering instead of duplicating data.

Mon Nov 27 21:39:40 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed a channel user mode bug when joining to a channel server gave
          everybody channel founder rights, oops.

        * We mark ourselves as the router of the incoming server connection
          if we are router ourselves.  This way we can check in some packet
          sending functions whether it is locally connected server.  For
          incoming router connections we put NULL.

        * For router sending packets locally means now always sending the
          packet cell wide; to local clients and local servers.  For normal
          server sending packet locally means sending it to only local
          clients.

        * Fixed the JOIN command to really work in router environment.  If the
          channel is created it is always created by the router.  Router is
          also responsible of making the initial joining to the channel,
          sending JOIN notify to the sending server and distributing 
          NEW_CHANNEL and NEW_CHANNEL_USER packets.  Hence, if the channel
          does not exist server doesn't do anything else but forward the
          command to the router which performs everything.

        * Added silc_server_send_channel_key function to send the Channel Key
          payload.

        * Added silc_server_create_channel_key to create new channel key.  The
          channel key is now re-generated everytime someone joins or leaves
          a channel, as protocol dictates.  Note: channel->key_len is the
          key length in bits.

Wed Nov 22 22:14:19 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Splitted server.[ch] finally.  Created now packet_send.[ch] and
          packet_receive.[ch] to separate packet sending and receiving
          routines.  The server.[ch] now includes everything else including
          actual packet processing (writing and reading data) and other
          server issues.

          Renamed silc_server_private_message_send_internal to
          silc_server_send_private_message.  The routine is still though
          used only to relay private messages as server does not send
          private messages itself.

          Renamed silc_server_new_channel to silc_server_create_new_channel
          and added new function sicl_server_new_channel that handles the
          incoming New Channel packet.  Added also new sending function
          silc_server_send_new_channel to send New Channel Payload.

        * Added new function silc_server_notify to process incoming notify
          packet to the server/router. Server may then relay the notify
          to clients if needed.

        * Added new function silc_server_new_channel_user to process incoming
          New Channel User packet.  Router will redistribute the packet and
          send JOIN notify to its local clients and locally connected servers
          if needed.  Normal server will send JOIN notify to its local client
          on same channel when received this packet.  Added also corresponding
          sending function silc_server_send_new_channel_user to sent the
          payload.

        * Added boolean route argument to send_notif_to_channel and
          packet_send_to_channel functions to attempt to route the packet
          if it is TRUE and send only locally if it is FALSE.

Tue Nov 21 19:49:31 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * silc_server_replace_id now broadcasts the received replace ID
          packet if it is not broadcast packet already. The router must
          broadcast to inform other routers about changed ID.

        * Added backpointer to server's router into SilcServer context in
          silcd/server_internal.h.

        * Fixed silc_server_packet_broadcast to send correct broadcast
          packets.

        * The channel key is now distributed to the local client as soon
          as it is received from the router (in router environment) so that
          no other packet may be sent for the channel until client has 
          received the key.

        * silc_server_remove_channel_user now broadcasts the received
          Remove Channel User packet if it is not broadcast packet already.
          The router must broadcast to inform other routers about removed
          channel user.

        * Added users field into SilcPacketContext that is a reference count
          of the context.  One can increase the reference count by calling
          silc_packet_context_dup which is now changed to just increase the
          reference count instead of duplicating the data.  The reference
          count is decresed by calling silc_packet_context_free that will
          free the data after the reference count hits zero.

          For now on the packet context and everything allocated into it
          (including the raw packet from network) must be freed by calling
          the new silc_packet_context_free function.  Added also new function
          silc_packet_context_alloc that must be used now to allocate the
          context.  This also means that if a routine is asynchronous from
          silc_[client/server]_packet_parse_type the packet context must
          be duplicated by calling silc_packet_context_dup.  Otherwise it
          gets free'd after silc_[client/server]_packet_parse_type returns.
          Also, one must remember that if packet is duplicated then its 
          reference count must be decresed by calling the free function as
          many times as it was duplicated.

        * Changed SilcBuffer field from protocol contexts to SilcPacketContext
          from both client and server.

Mon Nov 20 23:47:03 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Made joining to a channel working in router environment.

        * Cleaned up JOIN command on server side and create function
          silc_server_command_join_channel internal routine to make the
          joining happen.

Thu Nov  9 21:12:39 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed silc_command_pending list to SilcDList.  Also, added
          `ident' field to SilcServerCommandPending structure to identify
          the reply and to call correct callback.

          Added silc_server_command_pending_check function to replace the
          corresnponding macro.  The silc_command_pending list is not
          extern anymore.

        * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
          to set identifier to previously allocated Command Payload.  It
          is used to set identifier for command when resending Command
          Payload.

        * Added silc_command_payload_encode_payload to encode Command
          Payload buffer from SilcCommandPayload structure.

        * Added silc_argument_payload_encode_payload to encode Argument
          payload buffer from SilcArgumentPayload structure.

Wed Nov  8 21:03:28 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed WHOIS command to support router connection on server side.
          The whois request is always sent to router unless the server is
          standalone server.  After server has received the reply from the
          router will it send the reply to the client.

        * Added silc_server_packet_broadcast into silcd/server.[ch] to
          broadcast received broadcast packet.  The function is used only
          by router.  The broadcast packet is always sent to the router's
          primary route.

        * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
          render given ID to printable string, for log files for example.

Tue Nov  7 22:14:19 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Made basic router to router connections working.  At least they
          can now connect to each other but nothing really works the way
          they are supposed - yet.

        * Added new initiator token to RouterConnection configuration
          file in silcd/serverconfig.[ch].  It is used to tell whether we
          are the initiator to the remote router or whether we'll expect
          the other end to connect.

        * Moved registering of listener task to silc_server_init, hence
          the server starts listenning as soon as it is run, even if it
          does not have connections to other routers.  Let's see how well
          this will work.

        * Changed default connection retry timeouts for more suitable in
          silcd/server.h.

        * Removed cipher and such arguments from silc_idlist_add_client
          and silc_idlist_add_server prototypes from silcd/idlist.[ch].
          Added new function silc_idlist_add_data to add the keys and stuff
          to any ID entry.

        * Added SilcIDListData structure and added it to SilcClientEntry
          and SilcServerEntry as their first field in the structure.  This
          way we can explicitly cast the ID entries to the SilcIDListData
          structure and get common data for the entries.  In past, we had
          to first check what type of connection it is and then cast it to
          correct ID entry type.  Now, we can directly cast the opaque
          pointer to the SilcIDListData (no matter what ID entry it actually
          is) and get the data needed.

Mon Nov  6 21:56:12 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Wow, found a bug in scheduler.  The scheduler uninitialized itself
          in some circumstances even if threre were timeout tasks, though not
          IO tasks, but tasks anyway.  Now fixed.

        * Defined SilcServerConnection structure to hold connection specific
          stuff about directly connected servers and routers.  The definition
          is currently in silcd/server_internal.h.  I thought about having
          a bit more important role fro this struct but for now it is used
          only when connecting to other server (or router actually).

        * Added connecting retry support in server when connecting to
          router(s).  The retry feature implement exponential backoff
          algorithm.  Also, added SilcServerParams structure to hold default
          parameters for server.  For now, it include these retry settings
          and are hard coded.  After server is moded to be as Silc Server
          Library this structure will be more important.

Sun Nov  5 22:28:44 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed client librarys channel->clients table to SilcList and
          changed code accordingly.

Thu Nov  2 16:28:01 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed client's channel table to SilcList and changed code 
          accordingly.  Also changed SilcChannelClientEntry to include back-
          pointer to the channel so that client entry can use that structure
          as list as well and we have fast cross-reference to the channel.
          This change dramatically decreased the complexity of channel
          handling with client entry and vice versa (removed one extra
          loop when searching for channel entry from many functions).

        * Changed server->sim from table to SilcDList and changed code
          accordingly.

        * NAMES command can now be used from user interface.  It will show
          the user list on the channel, neatly.

        * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
          Code now saves realname of the user if it becomes available.

        * Renamed configure.in to configure.in.pre and made ./prepare
          script to automatically add correct version string to
          configure.in which it creates from configure.in.pre.

Wed Nov  1 17:21:26 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * NAMES command reply now shows users mode with the nickname when
          joining to channel.

        * Moved silc_client_ch[u]mode[_char] functions from 
          silc/clientutil.[ch] to lib/silcclient/client.[ch].  Though, that
          place sucks, they are utility functions and should be in some
          other file.

        * Fixed some unsigned int's to unsigned short's.  Patch by cras.

        * Fixed contrib/getopt*.[ch] to not require config.h.  Patch by
          cras.

Tue Oct 31 20:10:37 EET 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Updated README.

        * Added TRQ (efficient deque and list library) into lib/trq.  This is
          a very good list library that is currently used in the SILC.  Defined
          SilcList API over the library because I didn't like the API very
          much.  See lib/trq/silclist.h for the API and examples of how to
          use the API.  Fixed various places in the code to use the new
          SilcList API. The SilcList is meant for lists that has a structure
          already defined as a list.  It is not suitable to add just some
          context to the list (in TRQ, the context is the list actually).

          So, I defined SilcDList that can be used for the purpose where 
          predefined list structure does not exit.  This can be used as
          such list.  Now some context just can be added to the SilcDList.
          Currently this list is not used in the SILC just yet, though there
          are a lot places where this can replace dynamically allocated
          tables and I will fix these places, later, to use SilcDList.
          See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
          and use TRQ internally).

          Also fixed some annoying warning messages that the original TRQ
          code generated.  Also minor changes to TRQ's Makefile.in.

        * Added support for querying by Client ID to both WHOIS and 
          IDENTIFY commands into server, as required by the protocol.

        * Removed method function pointers from SilcBuffer structure. They
          weren't used to anything and just increased the context size for
          no good reason.  This change also made silc_buffer_alloc and
          silc_buffer_free functions inline functions.

        * Disabled command flooding detection support until it's fixed so 
          that it accepts commands in but does not execute them more than once
          in two seconds.

        * Added silc_net_localhost(), to return local hostname, into
          lib/silcutil/silcnet.[ch].  Also added client->hostname pointer
          that must be initialized before calling silc_client_init.

        * Added new function: silc_server_send_notify_on_channels to send
          notify messages to all channels client has joined.  It is assured
          that the message is sent only once per client.

        * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
          lib/silcutil/silcutil.[ch] as silc_format function.  The new 
          function is generic and is used by server as well, not only by
          the logging routines.

        * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
          the provided version string was not acceptable.  Added new function:
          silc_ske_check_version into lib/silcske/silcske.h.  The function
          must be implemented by the application (client or server) and it
          does not reside in the SKE library.  The function checks the version
          string remote end sent.

        * Added back pointers (to opaque context and to SilcSocketConnection) 
          into SilcPacketContext structure into lib/silccore/silcpacket.h.

        * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
          duplicate packet context structure.

        * Changed `notify' client operation to send same arguments as client
          receives from server except for ID's.  ID's are mapped to correct
          ID entry and that is returned.  Also, if channel entry is not sent
          by server but the notify is for channel the channel entry is sent
          to application (otherwise application doesn't know that it is for
          channel (library gets it from packet's Destination ID)).

        * Added silc_client_remove_from_channels into client library to 
          remove a client from all channels it has joined to.  Used when 
          received SIGNOFF notify from server.  Added also new function
          silc_client_replace_from_channels to replace old ID entry with
          new ID entry on all channels.  Used when received NICK_CHANGE
          notify from server.

        * Fixed ID Cache list handling in silc_idlist_get_client in 
          lib/silcclient/idlist.c.  Also, added silc_idlist_get_client_by_id
          to get (or query) client by ID.

        * Updated TODO list.

        * Added connection authentication status message defined by the
          protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
          support for these into the code in client and server side.

        * Added generic function silc_client_send_command to send any command
          with variable argument list.  Application should use this function
          to send commands if the command functions provided by the library
          does not suite for the application's user interface needs.

        * Added new `failure' client operation.  Application is notified about
          received failure packet if client is executing a protocol.  In this
          case the protocol's execution has failed.

        * Added SKE's end notify to send the SKE_SUCCESS notify message that
          is required by the protocol.

        * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
          packet from remote.  SILC_PROTOCOL_STATE_ERROR indicates local
          error at our end.

        * Added status flag to SilcSKE object to indicate realtime status
          of the SKE protocol.

        * Application receives now exactly same command reply arguments as
          the library receives from server.  However, if ID is received the
          corresponding ID entry is returned to the application (eg. Client
          ID is mapped to correct SilcClientEntry entry and that is returned).
          Changed command_reply client operation due to this change.

        * Changed all ID's in commands and in command replys as ID Payloads.
          Change affected both client and server side codes.

          All ID's sent in SILC network (with execption of ID's in SILC
          Packet header) are sent in ID Payload to support variable length
          ID's.

        * Server now notifies nick changes and notifies all clients on
          the channels about the new nickname (about the new Client ID,
          actually).

        * Implemented CMODE command to change channel modes. Supports all
          channel modes defined by the protocol specs except ban and invite
          lists. (Also, private channel key mode is supported but support for
          setting private channel key in client is missing, thus, this mode
          has no effect on client side (except that server requires that the
          client uses private channel key and normal channel traffic does not
          work anymore)).

          Also, invite mode works per se, but INVITE command does not work
          yet correctly, so you can set channel as invite only channel but
          inviting clients to the channel does not work (it is yet to be
          thought what's the best way to do it).

        * Added new command SILC_COMMAND_CUMODE to change user mode on the
          channel.  Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
          Implemented CUMODE command to change user's mode on the channel.
          Supports all modes defined by the protocol specs.

        * Added NAMES command reply to return users modes on the channel.

        * Removed unnecessary and slow ciphers from lib/silccrypt.

        * Set SO_KEEPALIVE option to connection sockets by default.

        * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.

        * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE.  Also,
          redefined the Notify Payload into protocol specs.

        * Added silc_id_payload_parse_id to get ID directly from raw
          ID payload data.

Mon Oct  9 20:57:02 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Changed SILC_COMMAND_IDENTIFY in protocol specification to 
          accept searching by Client ID as well.

        * Added support for LEAVE and SIGNOFF notify types in client library.

        * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
          to parse ID Payload from raw data.

Sun Oct  8 19:33:08 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added flags parameter into silc_ske_assemble_security_properties
          function in lib/silcske/silcske.[ch].

        * Changed notify client operation to fit better for notify messages
          sent by server.  The notify payload received from server is now
          passed to the application (after parsing it to SilcNotifyPayload).
          It is application's responsibility to retrieve the arguments
          from the payload and show the message the way it wants.  The message
          sent by server is implementation specific.

        * Changed public keys to comply with the protocol specification.
          Old public keys are not supported anymore and are not compatible.

        * Removed nickname from Channel Payload as the latest draft removed
          it.  The client must resolve the nickname from the NAMES command
          reply received when it joined the channel.

          Also, changed all channel_xxxx_payload to channel_payload_xxxx.

Sat Oct  7 21:55:01 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed some errors in protocol specification drafts.

        * Created lib/silccore/silcnotify.c to implement Notify Payload
          encoding and decoding, lib/silccore/silcpayload.[ch] to implement
          generic payloads described by protocol specifications.  The file
          includes implementations for ID Payload and Argument Payload.

        * Changed Command Payload implementation to use the new Argument
          Payload.  Changed command_xxxx_payload to command_payload_xxxx
          to comply with SILC coding conventions.

        * Added suppport for Argument Payload handling in Notify Payload
          implementation as protocol requires it.  Added the new support
          into server and client lib as well.

Thu Oct  5 21:16:28 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added support for multiple nicknames on same channel.  [n] is
          added locally to the nickname if there are more than one same
          nicknames on the channel.

        * Server now sends all nicknames that matched WHOIS request.
          Client also shows the list received from server.

        * Added TOPIC command to client side.  User can now set and show
          current topic on channel.

        * Added MOTD command to client and server.  Also, server sends the
          motd when client connects to the server.

        * Changed version strings to comply ISO 8601.

Wed Oct  4 23:29:06 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed protocol error handling in client library.  It should now
          cope even if the SKE fails for some reason.

        * Made new protocol specification drafts for submitting to IETF.

        * Implemented TOPIC command to server in silcd/command.c.

        * Added two new notify types into lib/silccore/silcnotify.h:
          SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
          notify nickname change and topic setting/change on a channel.

        * API change of command_reply operation in client library.  The
          application gets now the status type received from server as well.

Sat Sep 30 16:57:42 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Removed the function just added to lib/silcutil/silcschedule.[ch].

        * Cras fixed and optimized the packet handling even further and
          it should work now.  Minor change to the prototype of function
          silc_packet_receive_process in lib/silccore/silcpacket.[ch].

Sat Sep 30 08:48:47 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added new function into lib/silcutil/silcschedule.[ch]:
          silc_schedule_with_fd to select() a specified fd.  The function
          returns after timeout expires or data arrives or goes.  The
          function is used by packet routines to wait that all data is
          received from network.

        * Fixed data reading from network in lib/silccore/silcpacket.c.
          The code now assures that all data is read from the fd and then
          continues packet processing.  This was a bug fix since the code
          used to drop some data in some circumstances.

        * Added new function into lib/silcclient/client.[ch]:
          silc_client_start_key_exchange to start key exchange after
          connection has been established to server.  The code internally
          now uses this funtion but its main purpose was to provide it
          for applications that perform their own connecting.  After
          application has created a connection it merely calls this
          function to start the key exchange between client and server.
          The library takes care of everything else after that.

          Updated also lib/silcclient/README to explain the usage of
          this new function.

        * Do not send to application information that connection has
          been established.  Application gets notified it by connect
          operation anyway.

Thu Sep 28 23:40:19 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Applied cras's patch to add silc_schedule_one function.  The
          function runs scheduler once and returns.

        * Fixed the scheduler after cras messed it up.  The timeout
          handling works now as it's supposed to work.

        * Added into lib/silccore/ silcnotify.h to include notify
          message types support.  Changed silc_server_send_notify*
          functions, in server.[ch], to support those new notify types.
          Added the support for the notify types into client library,
          as well.  Added new notify client operation into ops.h in
          lib/silcclient/.

        * Changed silc_server_packet_send_to_channel to send normal
          packets instead of just channel message packets.  The function
          is now used to send the notify packets to channels.  It is not
          used to send channel message packets anymore, as server never
          sends them anymore.

        * Added explicit casting into lib/silcutil/silcbuffmt.c to few
          va_arg()s as it seems to require it nowadays.  I guess, if SILC
          is compiled with older va_arg() the new code should work anyway.

Wed Sep 13 18:10:14 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Splitted core library.  Core library (lib/silccore) includes
          now only SILC protocol specific core (and common) components.
          Created new utility library (lib/silcutil) that includes more
          generic purpose stuff.  The stuff for util library was taken
          from the old core library.  This was minor and easy split.

        * Created SILC Client Library (lib/silcclient) that includes
          implementation of the SILC client without user interface.  This
          was major move from silc/ directory.  The code has been changed
          so that it is transparent towards the user interface.  The
          silc/ directory includes now the same user interface as before
          and it uses the new client library.  Read lib/silcclient/README.
          Basicly, the client library performs everything else related
          to SILC except user interface handling.  Also, configuration
          files are considered to be part of user interface and library
          does not handle them.

          This change also changed a lot of structures, function naming etc.
          Most important change was that SilcClientWindow object was
          renamed to SilcClientConnection in the client library.  Created
          also new file lib/silcclient/ops.h.  Also added new files
          silc/local_command.[ch] and silc/client_ops.[ch].

          All these changes were made to make it easier for user interface
          designers to create what ever user interface for the SILC client
          they want.

          It is also expected that the server will be moved to lib
          directory as well and SILC Server Library will be created;
          sometimes in the future.

        * Removed Local commands from lib/silccore/silccommand.h as
          they are application specific and new client library does not
          handle any of those anymore.

        * Several functions moved to lib/silcutil/silcutilc.[ch] from
          old client implementation in silc/.

        * Added support for callback functions in SILC_LOG_* macros.
          Application can now set its own callbacks that will be called
          instead of using the default functions that will always print
          the debug messages to stderr (or stdout).  Also, debugging can
          now be disabled by setting silc_debug to FALSE and re-enabled by
          setting it to TRUE.  Note, that logging will still work even
          if debugging is disabled.

          New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
          silc_log_reset_callbacks, silc_log_set_debug_callbacks and
          silc_log_reset_debug_callbacks.

        * To enable debugging in silc client one must give now -d
          option on command line.

        * Changed silc_schedule_init to automatically allocate task queues
          if they are not allocated before calling it.

Thu Sep  7 10:49:33 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added GMP 3.1 into math library.

Sun Aug 20 21:27:26 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
          a channel in SILC network.  The packet is used by servers and
          routers to notify other routers that user has left a channel.
          This little feature was missing until now.  Added the feature
          to protocol specification as well.

          Added functions: silc_server_send_remove_channel_user and
          silc_server_remove_channel_user into server.[ch].

        * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
          lib/silccore/silcpacket.h.  However, they are not implemented
          yet.

Sat Aug 19 23:04:16 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed joining to a channel and sending channel messages
          between server and router.  The channel message sending should
          now work inside a cell.

Tue Jul 25 20:46:13 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the private message sending between server and router.
          The private message sending should now work inside a cell.

        * Added silc_server_replace_id into server.[ch] to replace
          existing ID in the SILC network.

        * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
          and silc_idlist_replace_server_id into idlist.[ch] in server.

Mon Jul 24 18:33:31 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed the server to server connections.  Server can again now
          connect to router.  Router to router connections probably does
          not work just yet.

Thu Jul 20 13:15:01 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added dynamic protocol registering support.  Now protocols can
          registered and unregistered on the fly.  Patch by cras.

Wed Jul 19 19:08:46 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added lib/contrib directory to hold routines that some platforms
          don't have but are needed by SILC.

        * Added getopt.c, getopt1.c and getopt.h from GNU C library
          into lin/contrib to provide getopt() and getopt_long() for
          those who don't have it.

Tue Jul 18 20:41:20 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added AWAY command to client.  When away message is set and
          client receives a private message packet the client automatically
          replies to the sender with the away message.

        * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin.  This
          bug seemed to be the cause of recent problems when compiling
          with gcc-2.95.

        * Added version detection support to SKE protocol specification
          and added the new changes to the SKE implementation as well.
          There were other minor changes in the SKE protocol as well.

          Many changes in lib/silcske/silcske.[ch] and in
          lib/silcske/payload.[ch].

        * Added ^U functionality, clear input line.  Patch from cras.

Mon Jul 17 23:33:26 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Mainly small bugfixes on core library.  Fixed some debugging
          logging and buffer overflow in silclog.c.

        * Updated config.sub and config.guess on the distribution tree.

Sat Jul 15 15:33:48 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added command lagging support in server. Client may execute
          commands now only once in two seconds.

Thu Jul 13 22:10:21 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Optimized packet reception. MAC computation and checking is now
          also more optimized.  A lot previously duplicated code is now
          used as generic by both client and server.

        * Fixed key pair generation in clientutil.c

Wed Jul 12 18:28:07 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added into lib/silccore/silcbufutil.[ch] new function;
          silc_buffer_realloc.

        * Moved generic packet sending/encryption functions to 
          lib/silccore/silcpacket.[ch] from client and server.  Some
          rewriting of the functions.

        * Moved all generic packet reception/decryption functions to
          lib/silccore/silcpacket.[ch] from client and server.  The
          packet processing is now much cleaner in both client and server.
          These were major changes in both client and server.

        * Created many common functions in server to do packet sending.
          Previously code were duplicated a lot, this has been removed
          with these changes.

Tue Jul 11 20:27:26 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Rewrote major parts of the ID cache system.  Don't know 
          whether it is better now or not but at least the API is more
          cleaner now.

        * Major rewrite on ID cache stuff on client because of the ID
          cache API changes.  Added idlist.c to client.

        * Also major rewrite on ID cache stuff on server as well.
          Major rewrite of idlist.[ch]. SilcXXXList's are now named
          SilcXXXEntry's.  We won't keep anymore idlist specific pointers
          in hand, instead they are all put into the ID cache system now.
          All server_idlist_* routines uses ID cache now instead of
          traversing its own lists (those lists does not exist anymore).
          SilcIDList though still exists.  Also, SilcXXXEntry's are
          now pointers.

Sun Jul  9 15:19:24 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Finally made the SKE implementation compliant to the protocol
          specification.  All mp integers are now binary encoded as
          opposed being HEX encoded.

        * Added lib/silcmath/mpbin.[ch].  Encoding mp intergers to and
          from binary data.

        * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
          functions: silc_[encode/decode]_pem.  Also added function
          silc_encode_pem_file to PEM encode with newlines ('\n') for
          saving into a file.

        * SILC public keys are now encoded either PEM or binary.  Same
          option is for private keys as well.  By default private keys
          are binary encoded and public keys PEM encoded.  Silly HEX
          encoding were removed.

        * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
          function to create fingerprints.

        * Fixed a bug in SHA1; does not change the original data anymore.

        * Partly implemented INFO command on client and server side.
          Fixed CLEAR command.  Changes to SERVER command; show current
          server(s) when giving command without arguments.  Added
          VERSION command to client.

        * Added check to server that unregistered connections cannot
          execute commands (unless it is specificly allowed).

Thu Jul  6 18:12:24 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Fixed screen refresh.

        * Fixed channel joining bug from client.  On some circumstances
          client tried to join to a channel it had already joined.

        * Added public key verification process into client's protocol.c.
          The client now verifies the public key from user and saves
          it into ~./silc/serverkeys/ directory. 

          Added into: clientutil.[ch]: silc_client_verify_server_key.

        * Changed SKE protocol's silc_ske_initiator_finish function
          to accept callback function that verifies the received public
          key.  Removed old silc_ske_verify_public_key function.

Wed Jul  5 19:19:02 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
          silc_pkcs_private_key[_data]_set.

        * Made the password and public authentication more cleaner in
          server's protocol.c.

        * Removed historic and obsolete protocol `channel_auth' from
          both client and server.

        * Removed wrong way of sending command status messages from
          server to client in server's command.c.  The old way violated
          protocol specification.  

          Changes to silccore/silccommand.[ch]: removed
          silc_command_encode_status_payload -> not needed anymore,
          changed silc_command_encode_payload_va to accept extra
          argument on variable argument list.  The argument type must
          now be provided to the function.  Also, added new function:
          silc_command_encode_reply_payload_va which is same as
          normal command_encode_payload_va except command status type
          is provided as extra argument.

Tue Jul  4 18:26:39 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added ~./silc directory handling.  The directory includes the
          public and private keys for the client.

          Added silc_client_check_silc_dir, silc_client_create_identifier
          and silc_client_load_keys.

        * Implemented SILC protocol compliant public key.  Added public
          and private key saving to and loading from files.

          Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
          silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
          silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
          silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
          silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.

          Implemented: silc_pkcs_save_[public/private]_key[_data] and
          silc_pkcs_load_[public/private]_key.

Mon Jul  3 18:51:27 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added silc_server_get_route (route.[ch]) to get connection
          data for the fastest route for given ID.

        * Implemented INVITE command on client and server.  The command
          were re-defined in the SILC Protocol Specification and the
          implementation now complies with the specification.

        * Implemented PING command on client and server.

        * Implemented NAMES command on client and server.  The server side
          supports currently only normal server not router server yet.
          Some changes to NAMES definition in SILC protocol specification.

Sun Jul  2 18:23:01 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Implemented LEAVE command on client and server.

        * Previously deprecated SILC_PACKET_FORWARDED flag is now in use 
          again.  This change was made to the protocol as well.  Server
          should not violate the protocol specification anymore.

Fri Jun 30 14:03:26 EEST 2000  Pekka Riikonen <priikone@poseidon.pspt.fi>

        * Added SOCKS4 and SOCKS5 support to SILC client.  SOCKS5
          was tested.  SOCKS4 was not but should work anyway.