+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+ that is obsolete.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
projects / silc.git / blobdiff