Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen * Made some sanity checks to silc_server_daemonise like to check whether the reuqested 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). Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen * 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 * 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 * 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 * 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 Also, removing any code that is obsolete.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 * 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 * 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 * 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 [] 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * Minor typo fixes on command reply handling on server. Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * Changed client librarys channel->clients table to SilcList and changed code accordingly. Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * Added GMP 3.1 into math library. Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5 was tested. SOCKS4 was not but should work anyway.