1 Tue Apr 3 21:52:42 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
3 * Defined uint8, int8, uint16, int16, uint32, int32, uint64 and
4 int64 of at least the xintXX size. If void * is less that 4
5 bytes uint32 * will be used. Defined bool as boolean.
7 Tue Apr 3 16:39:19 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
9 * Implemented the sending of the SERVER_SIGNOFF notify in the
10 server. Affected file is silcd/server.c.
12 * Added silc_server_send_notify_args into silcd/packet_send.[ch].
13 Added also silc_notify_payload_encode_args into the
14 lib/silccore/silcnotify.[ch].
16 * Implemented ther SERVER_SIGNOFF notify handling in the server.
17 Affected file silcd/packet_receive.c.
19 * Implemented the SERVER_SIGNOFF notify handling in the client
20 library. Affected file lib/silcclient/client_notify.c. Also,
21 implemnted the printing of the SERVER_SIGNOFF info to the
22 application. Affected file silc/client_ops.c.
24 * The silc_idlist_del_server now returns TRUE or FALSE to indicate
25 if the deleting was successful. Affected file silcd/idlist.[ch].
27 * Added support for public key authentication in the connection
28 authentication protocol in the client library. Affected file
29 lib/silcclient/protocol.c.
31 * Changed the server's silc_idlist_get_clients_by_* interface
32 to support already allocated array so that new entries may be
33 added to pre-allocated array. Affected file silcd/idlist.[ch].
34 This fixes some bugs with WHOIS, WHOWAS and IDENTIFY commands
37 * All command reply functions in the server now calls the
38 pending command callback even if error occured. This way the
39 error will be delivered to the client as well. Affected files
40 silcd/command.c and silcd/command_reply.c.
42 * Fixed INFO command to return local server's info if no server
43 was provided. Affected file lib/silcclient/command.c.
45 * Removed RESTART command for good. Updated the code and the
48 * Rewrote parts of the task system. It is a bit simpler now.
49 Removed unsued task priorities. The affected files are
50 lib/silcutil/silctask.[ch].
52 Mon Apr 2 20:02:33 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
54 * Moved the USERS printing from the library to the application.
55 Affected files lib/silcclient/command.c and silc/client_ops.c.
57 Mon Apr 2 13:13:23 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
61 * Added channel key re-key support. The re-key is perfomed
62 only by the router and is done once in an hour. Added `rekey'
63 field to the SilcChannelEntry in the server. Affected files
64 silcd/server.c and silcd/idlist.h.
66 * Added silc_task_unregister_by_context into the file
67 lib/silcutil/silctask.[ch].
69 Sun Apr 1 19:49:34 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
71 * Added SILC_UMODE_GONE mode to indicate when the client is not
72 present in the SILC network. Added also support to the local
73 command AWAY that will set this mode. Added support of showing
74 "xxx is gone" in WHOIS command. The USERS command shows the
77 * Fixed setting server and router operator privileges in the
78 server's UMODE command. Affected file silcd/command.c.
80 * Merged the SKE KE1 and KE2 payloads into one payload. The
81 new KE payload is equivalent to the old KE2 payload.
83 Cleaned up the SKE Start Payload parsing. It now uses the
84 simple buffer unformatting to do the parsing. A lot faster
87 Added new Mutual Authentication flag (SILC_SKE_SP_FLAG_MUTUAL)
88 to the SKE that is used to indicate whether both of the SKE
89 parties should perform authentication. By default only the
90 responder performs authentication. By setting this flag also
91 the initiator must do authentication. By default it is unset
92 since in normal SKE case, client to server connection, only
93 the responder should do authentication. When doing SKE between
94 two clients both should perform authentication. Updated the
95 code and the protocol specs.
97 * A little fix to IDENTIFY command in the server. Search the
98 client first by hash not nickname. Affected file is
101 * Fixed the silc_client_close_connection to support closing
102 the client to client connections wihtout deleting too much
103 data. Affected file lib/silcclient/client.c.
105 * Fixed a fatal bug in server and client; if KE1 or KE2 packets
106 are received if protocol used to be active but is not anymore
107 the application would crash due to NULL pointer dereference.
108 Affected files silcd/server.c and lib/silcclient/client.c.
110 * Added `hash' field to the SilcClientConnection to include
111 the hash function negotiated in the SKE protocol.
113 * Added new channel mode SILC_CMODE_FOUNDER_AUTH that is used
114 to set the channel founder authentication data. A client can
115 claim the founder rights later by providing the authentication
116 data to the CUMODE command using SILC_CUMODE_FOUNDER mode.
117 This way the channel founder can regain the channel founder
118 privileges even it is left the channel. This works only on
119 local server and the client must be connected to the same
120 server to be able to regain the founder rights. Updated the
121 protocol specs accordingly.
123 Added support to the CMODE command in the client to set the
124 founder auth data. Read the README to see how to set it.
126 Added support to the CUMODE command to claim the founder
127 rights. Read the README to see how to do it.
129 Added support for the founder authentication to the Channel
130 Entry in the server. Affected file silcd/idlist.h.
132 Added support for the SILC_CMODE_FOUNDER_AUTH mode in the
133 server's CMODE command. Affected file silcd/command.c.
135 * Added the following new functions into lib/silccore/silcauth.[ch]:
136 silc_auth_get_method and silc_auth_get_data.
138 * The server now saves the remote hosts public key to the
139 SilcIDListData pointer. Affected file silcd/protocol.c.
141 * The normal server now does not remove the channel entry from
142 the cache if the founder authentication data is set. It used
143 to remove it if the founder was the last one on the channel on
144 the server and left the channel. The auth data is saved and
145 if the channel is re-joined later the old entry is used with
146 the old auth data. Affected files silcd/command_reply.c and
149 * Removed the `pkcs' field from the SilcIDListData structure
150 in the server; it is not used. Affected file silcd/idlist.h.
152 Sat Mar 31 15:38:36 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
154 * Fixed packet processing on slow links. Partial packets were
155 never re-processed because the incoming data buffer was cleared
156 by the application. Application must not directly clear the
157 sock->inbuf, the packet processing routines handle it. Fixed
158 this in client library and in server.
160 Fri Mar 30 16:35:27 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
162 * Fixed the WHOIS and IDENTIFY send reply function to really
163 check whether to send list or just one entry. Affected file
166 * Cleaned up the LEAVE command's channel key distribution. The
167 affected file silcd/command.c.
169 * Changed CMODE_CHANGE's <Client ID> to <ID Payload> as server
170 can enforce the channel mode as well. In that case the ID
171 includes the ID of the server. The code now enforces the
172 mode change if the router have different mode than the server.
174 * The notify client operation with CMODE_CHANGE notify can now
175 return NULL client_entry pointer if the CMODE was not changed
176 by client. Application must check for this.
178 * Added <Server ID> argument to INFO command to support server
179 info fetching by Server ID.
181 * Added silc_server_announce_get_channel_users to get assembled
182 packets of channel users of the specified channel. Affected
183 file silcd/server.[ch].
185 * Fixed bug in CHANNEL_CHANGE notify in the server. The new ID
186 was freed underneath the ID Cache.
188 * Re-announce clients when the server received CHANNEL_CHANGE
189 notify from the router. Affected file silcd/packet_send.c.
191 Thu Mar 29 19:10:28 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
193 * Fixed a fatal bug when client does /join 1 2 3 4 5 6 the server
194 crashed since it did not handle the fact that there is no cipher
195 called "3" and didn't check the error condition. Now fixed.
197 * Added SILC_MESSAGE_FLAG_REQUEST message flag as generic request
198 flag. It can be used to send message requests.
200 Thu Mar 29 12:26:25 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
202 * Implemented the RESTART command in the client.
204 * Added SILC_MESSAGE_FLAG_NOTICE message flag for informational
205 notice type messages. Added notice printing to the user
208 * The channel keys are not re-generated if the channel's mode
209 is PRIVKEY, ie private key on the channel exists. Affected
210 files silcd/server.c and silcd/command.c.
212 * Fixed a little bug in channel message delivery when channel
213 private keys are set in the server. Affected file is
216 * Changed the setting on channel->on_channel = TRUE from the
217 silc_client_save_channel_key to the JOIN command reply. The
218 key payload is not received if the private channel key is set.
219 Affected file lib/silcclient/command_reply.c and the
220 lib/silcclient/client_channel.c.
222 * When the CMODE_CHANGE notify is sent and the channel private
223 key mode is removed the channel key must be re-generated in
224 other cells as well. Added this support for the router in the
225 silcd/packet_receive.c.
227 * Added new local command NOTICE to send notice message on
228 channel. Affected file silc/local_command.[ch].
230 Wed Mar 28 23:55:54 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
232 * Added new local command ME to the client. It is used to send
233 message to a channel with SILC_MESSAGE_FLAG_ACTION to indicate
234 some action. Affected file silc/local_command.[ch].
236 * Changed channel_message and private_message client operations
237 to deliver the message flags to the application. Added also
238 the `flags' arguments to the silc_client_send_channel_message
239 and silc_client_send_private_message functions. Affected file
242 Wed Mar 28 20:50:47 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
244 * Redefined the Private Message Payload to support private message
245 keys and to support the new private message flags. Updated
246 the protocol specs. Flags makes it possible to have for example
249 * Added new type SilcPrivateMessagePayload and defined an API
250 for it in the lib/silcclient/silcprivate.[ch].
252 * Tested private message private keys successfully. Tested the
253 private message key set, unset and list commands with the new
256 * Redefined the Channel Message Payload to include the channel
257 message flags (equal with private message flags) to support
258 for example CTCP style messages.
260 * Defined some of the message (for channel and private message)
261 flags. Updated the protocol specs and added the flags to the
262 lib/silccore/silcchannel.h. The type is SilcMessageFlags.
264 Wed Mar 28 15:52:36 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
266 * Added SilcKeyAgreementStatus type to the key agreement routines
267 to indicate the current status and error if one occured.
268 The status types are defined in the lib/silcclient/silcapi.h.
270 * Added new local command KEY that is used to set and unset private
271 keys for channels, set and unset private keys for private messages
272 with remote clients and to send key agreement requests and
273 negotiate the key agreement protocol with remote client. The
274 key agreement is supported only to negotiate private message keys,
275 it currently cannot be used to negotiate private keys for channels,
276 as it is not convenient for that purpose.
278 * Fixed a minor pending callback setting bug in the function
279 silc_client_get_client_by_id_resolve, now the function works.
280 Affected file lib/silcclient/idlist.c.
282 * Added function silc_net_get_local_port to get local bound
283 port by socket. Added to lib/silcutil/silcnet.[ch].
285 * Added `sockets' and `sockets_count' fields to the SilcClient
286 object. They hold the sockets of the listenning sockets in
287 the client. Listenning sockets may be for example the key
288 agreement server. Affected file lib/silcclient/client.[ch].
289 Added functions the silc_client_add_socket and the
290 silc_client_del_socket. They are exported to the application
293 * Added ~./silc/clientkeys to support other client's public keys.
295 * Renamed verify_server_key client operation to verify_public_key
296 and added one argument to indicate the type of the connection
297 (server, client etc.).
299 Tue Mar 27 22:22:38 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
301 * Added silc_server_connection_auth_request to handle the
302 incoming CONNECTION_AUTH_REQUEST packet. Affected file is
303 silcd/packet_receive.[ch].
305 * Added silc_server_send_connection_auth_request into the
306 silcd/packet_send.c to send the connection auth request packet.
308 * Cleaned up the silcd/protocol.c a bit and fixed some memory
311 * Fixed the public key authentication in responder side in the
312 server. The `auth_data' pointer includes the SilcPublicKey
313 not the path to the public key. Affected file silcd/protocol.c.
315 * Implemented the public key authentication in the initiator side
316 in the server. Affected file silcd/protocol.c.
318 * Removed the [RedirectClient] config section from the server
319 configuration. Is not needed and I don't want to implement it.
321 Tue Mar 27 12:49:56 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
323 * Cleaned up the CMODE command in the server. It now works
324 correctly and supports all the modes defined in the protocol.
325 Affected file is silcd/command.c.
327 * Added `hmac_name' field to the SilcChannelEntry in the server
328 to hold the default HMAC of the channel. It can be set when
329 creating the channel (with JOIN command). Affected files
332 * Added <cipher> and <hmac> argument to the CMODE_CHANGE notify
333 type to indicate the change of the current cipher and hmac
334 on the channel. Client can safely ignore the <cipher> argument
335 (if it chooses to do so) since the CHANNEL_KEY packet will
336 force the channel key change anyway. The <hmac> argument is
337 important since the client is responsible of setting the new
338 HMAC and the hmac key into use.
340 * Fixed the CMODE command in the client library as well.
342 * Tested CMODE command in router environment successfully.
344 Mon Mar 26 14:39:48 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
346 * Show the version of the remote client (or server) when connecting
347 to the server. It is logged to the log file. Affected file
350 * Fixed the KILLED notify handling in the client library. The
351 client must be removed from all channels when receiving the
354 Also, do not remove the client entry when giving the KILL
355 command but when the KILLED notify is received.
357 * Removed silc_idlist_find_client_by_nickname from the server.
358 Not needed anymore. Affected files silcd/idlist.[ch].
360 * Implemented the CHANNEL_CHANGE notify type handling to the
361 server. Affected file silcd/server.c.
365 Mon Mar 26 12:11:14 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
367 * Added silc_server_send_notify_invite to send the INVITE
368 notify between routers.
370 * Implemented the INVITE command correctly to the server.
372 * Implemented the INVITE notify type handling in the server.
374 * Implemented the INVITE command to the client library and on the
377 Sun Mar 25 20:27:09 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
379 * Added function silc_server_get_client_resolve to find the
380 client entry by ID from all ID lists and then resolve it
381 (using WHOIS) if it cannot be found. Affected file is
384 Sun Mar 25 13:52:51 EEST 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
386 * Implemented the BAN command to the client library.
388 * The JOIN command in the server now checks the invite list
391 * Changed the silc_command_reply_payload_encode_va and the
392 silc_command_payload_encode_va to support that if argument is
393 NULL it ignores and checks the next argument. Affected file
394 lib/silccore/silccommand.c.
396 * Added silc_server_send_notify_ban to send the BAN notify
397 type between routers.
399 * Chaned the silc_notify_payload_encode to support that if
400 argument is NULL it ignores and checks the next argument.
401 Affected file lib/silccore/silcnotify.c.
403 * Tested ban lists in router environment successfully.
405 Sat Mar 24 14:47:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
407 * Implemented BAN command to the server, in silcd/command.[ch].
409 * Removed the BAN and INVITE_LIST modes from the CMODE command
412 * Added function silc_string_match to regex match two strings.
413 Affected files lib/silcutil/silcutil.[ch].
415 Fri Mar 23 22:02:40 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
417 * Redefined parts of the SilcChannelEntry in the server to support
418 the new ban and invite lists.
420 Fri Mar 23 16:25:11 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
422 * Redefined the INVITE command. The same command can be used to
423 invite individuals to the channel but also to manage the invite
424 list of the channel (to add to and remove from the invite list).
425 Updated the protocol specs.
427 * Added new command SILC_COMMAND_BAN that can be used to manage
428 the ban list of the channel. Updated the protocol specs.
430 * Removed the channel modes: the SILC_CMODE_BAN and the
431 SILC_CMODE_INVITE_LIST as they were a bit kludge to be included
432 in the CMODE command. The equivalent features are now available
433 using INVITE and BAN commands. Updated the protocol specs.
435 * Added new SILC_NOTIFY_TYPE_BAN notify type to notify routers
436 in the network about change in the current ban list. The notify
437 type is not used by the client.
439 * Redefined parts of the SILC_NOTIFY_TYPE_INVITE command to
440 support the invite lists.
442 Thu Mar 22 22:52:23 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
444 * Added new function silc_string_regexify that converts string
445 including wildcard characters into regex string that can
446 be used by the GNU regex library. Added into the file
447 lib/silcutil/silcutil.[ch].
449 Added silc_string_regex_combine to combine to regex strings
450 into one so that they can be used as one regex string by
451 the GNU regex library. Added into the file
452 lib/silcutil/silcutil.[ch].
454 Added silc_string_regex_match to match two strings. It returns
455 TRUE if the strings match. Added into lib/silcutil/silcutil.[ch].
457 Thu Mar 22 15:29:42 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
459 * Imported GNU regex to the soruce tree into lib/contrib.
460 Fixed some compiler warning from the regex.c.
462 Wed Mar 21 15:27:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
464 * Fixed MOTD command in the server to work in router environment.
466 * Fixed the MOTD command in the client library to support
467 the server argument in the command.
469 * Added `nickname_len' argument to the silc_idlist_add_client
470 in the server, as the `nickname' argument may be binary data
473 * Added silc_idlist_get_channels to return all channels from
476 * Implemented LIST command to the server. Affected file is
479 * Implemented the LIST command to the client library and on the
482 * Added [<user count>] argument to the LIST command reply.
483 With private channels the user count is not shown.
485 * Updated TODO and README.
487 Tue Mar 20 21:05:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
489 * The client entry's data.registered must be TRUE even with
490 global client entry on global client list. The data.registered
491 is used to check whether the client is anymore in the network,
492 for example with WHOWAS command so it must be valid.
494 * Fixed the WHOWAS command in the server. It now actually works
495 in router environment. Added function into silcd/command_reply.c
496 silc_server_command_reply_whowas_save.
498 * Added silc_idlist_purge function to the silcd/idlist.c
499 to periodically purge the ID Cache.
501 * Fixed INFO command in the server. It works now in router
502 environment. Added <server name> argument to the INFO command
503 reply. Updated the protocol specs.
505 * Fixed minor bug in silc_idcache_purge to not purge if the
506 expire value is zero.
508 * Fixed various bugs in WHOIS and IDENTIFY command handling as
509 they were buggy because of the WHOWAS information.
511 * Fixed local command MSG to handle the async resolving of
512 the remote client properly. It used to fail the first MSG.
513 Affected file silc/local_command.c.
515 * Added `data_len' field to SilcIDCache context.
517 Tue Mar 20 16:29:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
519 * Update TODO. Todo in commands in the server.
521 Tue Mar 20 15:45:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
523 * Added new notify type SILC_NOTIFY_TYPE_UMODE_CHANGE that is
524 used by routers as broadcast packet to inform other routers
525 about the changed user mode.
527 Implemented the notify handling in the server. Affected file is
528 silcd/packet_receive.c. Added the function
529 silc_server_send_notify_umode to the silcd/packet_send.[ch].
531 * Added new generic Channel Payload and deprecated the New Channel
532 Payload. The New Channel Payload is now the generic Channel
535 * Added new argument `mode' to the silc_server_send_new_channel
536 as it is required in the Channel Payload now.
538 * Renamed the SilcChannelPayload to SilcChannelMessagePayload
539 and created a new and real SilChannelPayload to represent the
540 new generic Channel Payload. Implemented the encode/decode
541 for Channel Payload. Affected file lib/silccore/silcchannel.[ch].
543 * Added silc_server_get_client_channel_list to return the list
544 of channels the client has joined for WHOIS command reply.
545 Affected file silcd/server.[ch].
547 * Implemented the channel list sending in the WHOIS command reply
548 in server and in the client.
550 Implemented the channel list displaying on the user interface
551 as well. Affected file silc/client_ops.c.
553 * Added silc_channel_payload_parse_list to parse list of Channel
554 Payloads. It returns SilcDList list of SilcChannelPayloads.
555 Client for example can use this function to parse the list of
556 channels it receives in the WHOIS command reply. The caller
557 must free the list by calling silc_channel_payload_list_free.
558 Affected files lib/silccore/silcchannel.[ch].
560 Mon Mar 19 21:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
562 * Added one new argument <user mode> to the WHOIS command reply
563 to return the mode of the user in SILC. Updated the protocol
566 Implemented it to the server and client.
568 Mon Mar 19 18:43:06 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
570 * Fixed the mode printing on the user interface on joining.
571 Affected file silc/client_ops.c.
573 * Implemented the UMODE command and user modes in general to the
574 client library and to the user interface.
576 * Implemented the UMODE command to the server.
578 * The server now sends UNKNOWN_COMMAND error status if client sends
579 unknown command. Affected file silcd/command.c.
581 * All server commands now handle the command identifier the right
582 way when sending the command reply to the client. The client can
583 use to identify the command replies with the identifier.
585 Mon Mar 19 16:13:07 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
587 * Added silc_server_get_client_route to resolve the route to
588 the client indicated by the client ID. Affected file is
591 * Added silc_server_relay_packet as general function to relay
592 packet to arbitrary destination. This deprecates functions
593 like _send_private_message_key, _relay_notify etc. Affected
594 file is silcd/packet_send.[ch].
596 Removed silc_server_send_key_agreement,
597 silc_server_send_private_message_key and
598 silc_server_packet_relay_notify functions from the file
599 silcd/packet_send.[ch].
603 * Implemented the SILC_NOTIFY_TYPE_KILLED notify handling in the
604 server. Affected file silcd/packet_receive.[ch].
606 * Implemented the KILL command to the client. Implemented the
607 SILC_NOTIFY_TYPE_KILLED notify handling in the client library.
608 Affected files lib/silcclient/command[_reply].c and
609 lib/silcclient/client_notify.c. Implemented the KILL notify
610 printing in the user inteface.
612 * Fixed a lot silc_parse_nick memory leaks from the client
613 library in the file lib/silcclient/command.c.
615 * Changed the silc_server_send_notify_on_channels's `sender'
616 argument from SilcSocketConnection to SilcClientEntry to
617 check the sender as entry and not as connection object and not
618 to send to the client provided as argument. The affected file
619 is silcd/packet_send.[ch].
621 * The notify packets that are destined directly to the client used
622 to not to be processed by the server. Now changed that and the
623 server processes all notify packets. After relaying the packet
624 to the client the notify packet is processed in the server.
626 * The silc_server_free_client_data now checks whether there is
627 pending outgoing traffic for the client and purges the data to
628 the network before removing the client entry.
630 Sun Mar 18 21:02:47 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
632 * Added SILC_NOTIFY_TYPE_KILLED notify type. It is sent when
633 an client is killed from the SILC Network. Updated the protocol
636 Added new function silc_server_send_notify_killed to the
637 silcd/packet_send.[ch].
639 * Added function silc_server_packet_relay_notify to relay notify
640 packets that are destined directly to a client. In this case
641 the server does not process the notify packets but merely relays
642 it to the client. Affected file silcd/packet_send.[ch].
644 Added also silc_server_packet_process_relay_notify to check
645 whereto relay the notify. Affected file is
646 silcd/packet_receive.[ch].
648 * Implemented the KILL command to the server.
652 * Added the backup schema desgined last fall to the protocol
653 specs for everyone to see. The specification is in the
654 *-spec-xx.txt draft and the packet type definitions for the
655 backup routers is in *-pp-xx.txt draft. Thusly, added also
656 new packet type SILC_PACKET_CELL_ROUTERS.
658 * A big security problem in the implementation discovered. The
659 signoff of an client did not cause new channel key generation
660 which it of course should've done. The channel keys must be
661 always re-generated when client leaves (or signoffs) the channel.
662 The silc_server_remove_from_channels funtion now handles
663 the channel key re-generation.
665 * Added `sender' argument to the silc_server_send_notify_on_channels
666 to not to send the client provided as argument. Affected file
667 silcd/packet_send.[ch].
669 Fri Mar 16 15:52:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
671 * Implemented OPER and SILCOPER commands into the server and
674 * Added silc_auth_verify and silc_auth_verify_data to verify
675 the authentication directly from the authentication payload.
676 It supports verifying both passphrase and public key based
677 authentication. Affected file lib/silccore/silcauth.[ch].
679 * Added `hash' field to the SilcIDListData structure. It is the
680 hash negotiated in the SKE protocol. Affected file is
683 * Slight redesigning of the SilcAuthPayload handling routines.
684 Do not send SilcPKCS but SilcPublicKey as argument.
686 * Implemented the public key authentication support to the
687 serverconfig. The public key is loaded from the provided path
688 and saved as authentication data to void * pointer. Thus,
689 changed the unsigned char *auth_data to void *auth_data;
691 * Fixed SHUTDOWN command to send the reply before the server
692 is shutdown. :) Affected file silcd/command.c.
694 * Fixed fatal bug in CONNECT command. The hostname was invalid
695 memory and server crashed. Affected file silcd/command.c.
697 * Fixed fatal bug in CLOSE command. The server_entry became
698 invalid but was referenced later in the command. Affected file
701 Thu Mar 15 12:46:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
703 * Fixed fatal bug in failure packet handling. Server ignored
704 the failure and thus crashed when it came.
708 Wed Mar 14 20:37:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
710 * Added new SILC_CF_LAG_STRICT command flag that strictly forces
711 that the command may be executed only once in (about) 2 seconds.
712 The old SILC_CF_LAG flag is same but allows command bursts up
713 to five before limiting.
715 Added the support for CF_LAG and CF_LAG_STRICT flags to the
716 server code. Various commands now includes the CF_LAG_STRICT
717 flag to disallow any kind of miss-use of the command.
719 * Fixed the silc_buffer_unformat to not to allocate any data
720 if the length of the data is zero. It used to allocate the
721 length + 1. Affected file lib/silcutil/silcbuffmt.c.
723 Wed Mar 14 16:10:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
725 * Changed the format of AdminConnection configuration section
726 in the server. Added username of the admin to the format.
727 Affected files silcd/serverconfig.[ch].
729 Added silc_server_config_find_admin into silcd/serverconfig.[ch]
730 to return admin configuration data by host, username and/or
733 Wed Mar 14 13:18:16 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
735 * Implemented WHOWAS command to the server. Added the functions:
737 silc_server_command_whowas_parse,
738 silc_server_command_whowas_send_reply,
739 silc_server_command_whowas_from_client and
740 silc_server_command_whowas_from_server
742 * Added <Client ID> argument to the WHOWAS command reply. Updated
743 the protocol specs accordingly.
745 * Implemented WHOWAS command and command_reply to the client
748 Implemented the WHOWAS printing on the user interface.
750 Tue Mar 13 22:17:34 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
752 * Added new argument to the WHOWAS command reply, the real name.
753 It is an optional argument. Updated the protocol specs.
755 * Added SilcIDCacheDestructor callback that is registered when
756 the SilcIDCache is allocated. The callback is called when
757 an cache entry in the ID Cache expires, or is purged from the
758 cache. Added into lib/silccore/idcache.[ch].
760 Added silc_idlist_client_destructor to the silcd/idlist.[ch]
761 to destruct the client entries when the cache entry expires.
762 Other ID Cache's in server and in the client library ignores
765 * If the ID Cache entry's `expire' field is zero then the entry
766 never expires. Added boolean `expire' argument to the
767 silc_idcache_add function in the lib/silccore/idcache.[ch].
768 If it is TRUE the default expiry value is used.
770 * Added silc_server_free_client_data_timeout that is registered
771 when client disconnects. By default for 5 minutes we preserve
772 the client entry for history - for WHOWAS command.
774 Tue Mar 13 13:26:18 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
776 * Added support to the server to enforce that commands are not
777 executed more than once in 2 seconds. If server receives
778 commands from client more frequently, timeout is registered
779 to process the commands. Affected file silcd/command.c.
780 Added new function silc_server_command_process_timeout.
782 * Changed NICK_NOTIFY handling in client library to check that
783 if the client's nickname was changed, so there is no need to
784 resolve anything from the server.
786 * Removed error printing from the WHOIS and IDENTIFY commands.
787 If error occurs then it is ignored silently in the client library.
788 The application, however, may map the received error to
789 human readable error string. The application currently maps
790 the NO_SUCH_NICKNAME error to string.
792 * Made the command status message public to the application. Moved
793 them from lib/silcclient/command_reply.c to
794 lib/silcclient/command_reply.h. The application can map the
795 received command status to the string with the
796 silc_client_command_status_message function.
798 * Added check to the server to check that client's ID is same
799 as the Source ID in the packet the client sent. They must
802 Tue Mar 13 12:49:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
804 * Added dist-bzip hook to the Makefile.am to make bzip2
805 compressed distributions.
807 Mon Mar 12 18:43:38 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
809 * Server now enforces the maximum length for the nickname and
810 the channel as protocol specification dictates. 128 bytes for
811 nickname and 256 bytes for channel name.
813 * Moved the WHOIS printing to the application. The client libary
814 does not print out the WHOIS information anymore, the application
815 must do it. Renamed silc_client_command_reply_whois_print to
816 the silc_client_command_reply_whois_save.
818 The client's idle time is also sent to the application now, and
819 the idle is shown on screen.
821 * Added silc_client_command_reply_identify_save to save the
822 received IDENTIFY entries.
824 * Do not check for channel private keys in message sending and
825 reception if the channel does not have the PRIVKEY mode set.
826 Affected file lib/silclient/client_channel.c.
828 Sun Mar 11 20:25:06 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
830 * Fixed a minor bug if WHOIS and IDENTIFY command parsing that
831 just surfaced after chaning the JOIN procedure.
833 Sun Mar 11 14:59:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
835 * Added silc_client_get_clients_by_list to get client entries
836 from Client ID list, that is returned for example by JOIN
837 and USERS command replies. The application should use this
838 function for example when JOIN command reply is received to
839 resolve the clients already on the channel (library does not
840 do that anymore as USERS command reply is not used in the JOIN
841 procedure anymore). Affected files lib/silcclient/silcapi.h and
842 lib/silcclient/idlist.c.
844 * JOIN command reply and USERS command reply returns now SilcBuffer
845 pointers instead of unsigned char pointers when returning
846 the client list and mode list.
848 * Added <Client ID> argument to the JOIN command reply, mainly
849 for the server to identify for which client the command was
850 originally sent. Updated protocol specs accordingly.
852 * Added SilcDlist private_key pointer to the SilcChannelEntry
853 in the client to support the channel private keys. Affected
854 file is lib/silcclient/idlist.h.
856 * Added SilcChannelPrivateKey argument to the function
857 silc_client_send_channel_message so that application can choose
858 to use specific private ke if it wants to. If it is not provided,
859 the normal channel key is used, unless private keys are set.
860 In this case the first (key that was added first) is used
861 as the encryption key.
863 * Implemented the support for channel private key handling.
864 Implemented the following functions:
866 silc_client_add_channel_private_key,
867 silc_client_del_channel_private_keys,
868 silc_client_del_channel_private_key,
869 silc_client_list_channel_private_keys and
870 silc_client_free_channel_private_keys
872 Affected file lib/silcclient/client_channel.c.
874 * Added the support for the private keys in the channel message
875 sending and encryption and in the message reception and
876 decryption. Affected funtions are
877 silc_client_send_channel_message and silc_client_channel_message.
879 Sat Mar 10 21:36:22 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
881 * Added SKE's key verify callback to the client library's
882 KE protocol context. Affected files lib/silcclient/protocol.[ch].
884 * Removed the statement that server (or router) must send USERS
885 command reply when joining to the channel so that the client
886 knows who are on the channel. Instead, the client list and
887 client's mode list is now sent in the JOIN command reply to the
888 client who joined channel. This is better solution.
890 * Added function silc_server_get_users_on_channel and function
891 silc_server_save_users_on_channel to the silcd/server.[ch].
893 * Removed function silc_server_command_send_users from the
896 * Do not show topic on the client library anymore. The topic is
897 sent in the command reply notify to the application and the
898 application must show the topic now.
900 Sat Mar 10 00:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
902 * Added client searching by nickname hash into the IDENTIFY and
903 WHOIS commands in the server as they were clearly missing from
904 them. Affected file is silcd/command.c.
906 * Fixed a bug in private message receiving in the client library.
907 The remote ID was freed and it wasn't supposed, now it is
910 Fri Mar 9 12:40:42 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
912 * Minor fix to the channel payload; allocate the data area, as it
913 needs to be of specific length.
915 * If the key agreement port is zero then the operating
916 system will define the bound port. Affected files are
917 lib/silcclient/silcapi.h and lib/silcclient/client_keyagr.c.
919 * Added new function silc_channel_payload_decrypt into the file
920 lib/silccore/silcchannel.[ch].
922 * Moved the channel message etc, check from silc_packet_decrypt
923 to applications. The library calls now a generic
924 SilcPacketCheckDecrypt callback which is to return TRUE or FALSE
925 when the packet is either normal or special. This was done to
926 allow more wide range of checking that was not allowed when
927 the code was in library. Now applications can do virtually any
928 checks to the packet and return to the library the decision how
929 the packet should be processed. Affected files are
930 lib/silccore/silcpacket.[ch].
932 Added silc_server_packet_decrypt_check to the server and
933 silc_client_packet_decrypt_check to the client library.
935 * Added silc_server_packet_send_srcdest into silcd/packet_send.[ch]
936 to send with specified source and destination information.
938 * Channel message delivery between routers was broken after the
939 channel key distribution was fixed earlier. The channel key
940 was used be to distributed to other routers as well which is not
941 allowed by the protocol. Now this is fixed and channel keys
942 really are cell specific and the channel message delivery between
943 routers comply with the protocol specification.
945 * Fixed various commands in server to check also the global list
946 for the channel entry and not just the local list. The affected
947 file silcd/command.c.
949 Thu Mar 8 21:39:03 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
951 * Added assert()s to buffer formatting and unformatting routines
952 to assert (if --enable-debug) when error occurs. Affected
953 file: lib/silcutil/silcbuffmt.c.
955 * Changed to auto-reconnect to check whether the remote host is
956 router and register the re-connect timeout if it is. It used
957 to check that whether we are normal server, but router must do
958 auto-reconnect with another router as well. Affected file
961 * Removed the [<key len>] option from CMODE command as the cipher
962 name decides the key length, nowadays. See the defined ciphers
963 from the protocol specification.
965 * Added [<hmac>] option to the CMODE command to define the HMAC
966 for the channel. Added SILC_CMODE_HMAC channel mode.
968 * Added [<hmac>] option for the JOIN command so that user can
969 select which HMAC is used to compute the MACs of the channel
972 * Added Hmac field to the Channel Message Payload. The integrity
973 of plaintext channel messages are now protected by computing
974 MAC of the message and attaching the MAC to the payload. The
975 MAC is encrypted. Now, it is clear that this causes some
976 overhead to the size of the packet but rationale for this is that
977 now the receiver can verify whether the channel message decrypted
978 correctly and also when private keys are set for the channel the
979 receiver can decrypt the packet with several keys and check from
980 the MAC which key decrypted the message correctly.
982 * Added silc_cipher_encrypt and silc_cipher_decrypt into the
983 lib/silccrypt/silccipher.[ch].
985 * Added silc_hash_len to return the digest length into the
986 lib/silcrypt/silchash.[ch].
988 * Rewrote parts of Silc Channel Payload interface in the
989 lib/silccore/silcchannel.[ch]. The encode function now also
990 encrypts the packet and parse function decrypts it.
992 Wed Mar 7 20:58:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
994 * Fixed a minor formatting bug in the SKE's key material processing.
995 It actually might have processed the keys wrong way resulting
998 * Redefined the mandatory HMAC algorithms and added new algorithms.
999 Added hmac-sha1-96 and hmac-md5-96 which are normal hmac-sha1
1000 and hmac-md5 truncated to 96 bits. The mandatory is now
1001 hmac-sha1-96. Rest are optional (including the one that used
1002 to be mandatory). Rationale for this is that the truncated HMAC
1003 length is sufficient from security point of view and can actually
1004 make the attack against the HMAC harder. Also, the truncated
1005 HMAC causes less overhead to the packets. See the RFC2104 for
1008 * Added new [hmac] configuration section. The SKE used to use
1009 the hash names (md5 and sha1) in the SKE proposal as HMCAS which
1010 is of course wrong. The official names that must be proposed in
1011 the SKE are the ones defined in the protocol specification
1012 (hmac-sha1-96 for example). The user can configure any hmac
1013 using any hash function configured in the [hash] section. At
1014 least, the mandatory must be configured.
1016 Rewrote the HMAC interface in lib/silccrypt/silchmac.[ch].
1018 * Added HMAC list to the SKE proposal list. It has now both
1019 hash algorithm list and HMAC list. This makes the protocol
1020 incompatible with previous versions. The SKE now seems to work
1021 the way it is supposed to work, for the first time actually.
1023 * Defined plain Hash algorithms to the protocol specification.
1026 Tue Mar 6 15:36:11 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1028 * Implemented support for key agreement packets into the server.
1029 Added functions silc_server_key_agreement and
1030 silc_server_send_key_agreement. Other than these functions,
1031 server has nothing to do with this packet.
1033 * Added support for private message key packets into the server.
1034 Added functions silc_server_private_message_key and
1035 silc_server_send_private_message_key.
1039 * Changed the silc_[client|server]_protocol_ke_set_keys to be
1040 called in the protocol's final callback instead in the END
1041 protocol state. This makes a little more sense and in the same
1042 time in client we can use the same protocol routines for normal
1043 key exchange and to key agreement packet handling as well.
1045 * Added to both client's and server's KE protocol context the
1046 SilcSKEKeyMaterial pointer to save the key material. We will
1047 bring the key material to the protocol's final callback by doing
1048 this. The final callback must free the key material.
1050 * Added SKE's packet_send callback into client's KE protocol
1051 context so that the caller can choose what packet sending function
1052 is used. This way we can use different packet sending when
1053 doing normal SKE when doing key agreement packet handling (in
1054 the key agreement packet handling we do not want to encrypt
1057 * Implemented the responder side of the key agreement routines
1058 in the client. The client can now bind to specified port and
1059 accept incoming key negotiation. The key material is passed
1060 to the application after the protocol is over.
1062 * Implemented the processing of incoming Key Agreement packet
1063 in the client. Added function silc_client_key_agreement to
1066 * Implemented the intiator side of the key agreement routines
1067 in the client. The client can now initiate key agreement with
1068 another remote client. The key material is passed to the
1069 application after the protocol is over.
1071 * Created client_keyagr.c to include all the key agreement
1074 * Added macro SILC_TASK_CALLBACK_GLOBAL which is equal to the
1075 SILC_TASK_CALLBACK except that it is not static.
1077 * Created client_notify.c and moved the Notify packet handling
1078 from the client.[ch] into that file.
1080 * Created client_prvmsg.c and moved all private message and
1081 private message key routines from the client.[ch] into that file.
1083 * Create client_channel.c and moved all channel message and
1084 channel private key routines from the client.[ch] into that file.
1086 * Changed silc_client_get_client_by_id_resolve to resolve with
1087 WHOIS command instead of IDENTIFY command, in the file
1088 lib/silclient/idlist.c.
1090 Mon Mar 5 18:39:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1092 * Implemented the SKE's responder side to the Client library.
1094 * When FAILURE is received to the protocol do not trust it
1095 blindly. Register a timeout to wait whether the remote closes
1096 the connection as it should do it, only after that process the
1097 actual failure. This was changed to both client and server.
1099 * Added client_internal.h to include some of the structures
1100 there instead of client.h in lib/silcclient/.
1102 * Added function silc_task_unregister_by_callback to unregister
1103 timeouts by the callback function.
1105 Sat Mar 3 19:15:43 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1107 * Some "Incomplete WHOIS info" errors has been appearing on the
1108 log files. Took away the entry->userinfo check from WHOIS
1109 reply sending. The entry->userinfo is now " " if client did not
1110 provide one. I thought this was fixed earlier but something
1111 is wrong still. Let's see if the error still appears.
1113 Wed Feb 28 20:56:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1115 * Fixed a minor bug in the login when the channel key is
1116 re-generated in the server. It used to generate the key in
1117 wrong order and thus caused problems in the channel traffic.
1119 * Fixed a minor bug in channel key distsribution after
1120 KICK command. The key was not sent to the router even though
1123 Tue Feb 27 20:24:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1125 * Added silc_ske_process_key_material_data as generic routine
1126 to process any key material as the SILC protocol dictates. The
1127 function is used by the actual SKE library but can be used by
1128 applications as well. This relates to the private message keys
1129 and the channel private keys since they must be processed the
1130 same way the normal SILC session keys. The protocol dictates
1131 this. Affected files: lib/silcske/silcske.[ch].
1133 Added also silc_ske_free_key_material to free the
1134 SilcSKEKeyMaterial structure.
1136 * Defined silc_cipher_set_key function to set the key for
1137 cipher without using the object's method function. The affected
1138 files: lib/silccrypt/silccipher.[ch].
1140 * Implemented silc silc_client_add_private_message_key,
1141 silc_client_add_private_message_key_ske,
1142 silc_client_del_private_message_key,
1143 silc_client_list_private_message_keys and
1144 silc_client_free_private_message_keys functions in the
1147 Added functions silc_client_send_private_message_key to send
1148 the Private Message Key payload and silc_client_private_message_key
1149 to handle incoming Private Message Key payload.
1151 * Added Cipher field to the Private Message Key payload to set
1152 the cipher to be used. If ignored, the default cipher defined
1153 in the SILC protocol (aes-256-cbc) is used.
1155 Tue Feb 27 13:30:52 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1157 * Removed lib/silcclient/ops.h file.
1159 Redefined parts of the SILC Client Library API. Created new
1160 file silcapi.h that deprecates the ops.h file and defines the
1161 published Client Library API. Defined also private message key
1162 API and channel private key API into the file.
1164 This is the file that the application must include from the
1165 SILC Client Library. Other files need not be included by
1166 the application anymore.
1168 * Added new key_agreement client operation callback and also
1169 defined the Key Agreement library API for the application.
1171 Tue Feb 27 11:28:31 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1173 * Added new packet type: SILC_PACKET_KEY_AGREEMENT. This packet
1174 is used by clients to request key negotiation between another
1175 client in the SILC network. If the negotiation is started it
1176 is performed using the SKE protocol. The result of the
1177 negotiation, the secret key material, can be used for example
1178 as private message key.
1180 Implemented the Key Agreement payload into the files
1181 lib/silccore/silauth.[ch].
1183 Mon Feb 26 12:13:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1185 * Redefined ciphers for the SILC protocol. Added some new ciphers
1186 and defined the key lengths for the algorithms. Changed the
1187 code accordingly. The default key length is now 256 bits.
1189 * Fixed SKE key distribution function silc_ske_process_key_material
1190 when the key length is more than 128 bits. The default key
1191 length in SILC is now 256 bits.
1193 * Added new command status type: SILC_STATUS_ERR_UNKOWN_ALGORITHM
1194 to indicate unsupported algorithm.
1196 * Renamed rijndael.c to aes.c and all functions as well.
1198 * Fixed a long standing channel key setting bug in client library.
1199 Weird that it has never surfaced before.
1201 * Fixed bug in channel deletion. If the entire channel is removed
1202 then it must also delete the references of the channel entry
1203 from the client's channel list as the client's channel entry and
1204 the channel's client entry share same memory.
1206 Sun Feb 25 20:47:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1208 * Implemented CONNECT and SHUTDOWN commands in the client.
1210 * Implemented CLOSE command to the client.
1212 * Added the function silc_idlist_find_server_by_name into the
1213 files silcd/idlist.[ch].
1215 Added the function silc_idlist_find_server_by_conn into the
1216 files silcd/idlist.[ch].
1218 Sat Feb 24 23:45:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1220 * DIE command was renamed to SHUTDOWN. Updated the both code
1223 * Defined SILC_UMODE_NONE, SILC_UMODE_SERVER_OPERATOR and
1224 SILC_UMODE_ROUTER_OPERATOR modes into lib/silccore/silcmode.h.
1226 * Implemented CONNECT, CLOSE and SHUTDOWN commands to the server
1229 * Added function silc_server_create_connection function to create
1230 connection to remote router. My server implementation actually
1231 does not allow router to connect to normal server (it expects
1232 that normal server always initiates the connection to the router)
1233 so the CONNECT command is only good for connecting to another
1236 Sat Feb 24 16:03:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1238 * Added SILC_NOTIFY_TYPE_KICKED to indicate that the client
1239 or some other client was kicked from the channel.
1241 Implemented the handling of the notify type to both client
1244 Implemented silc_server_send_notify_kicked to send the KICKED
1245 notify. It is used to send it to the server's primary router.
1247 * Implemented the KICK command into server and client.
1249 * Added `query' argument to the silc_idlist_get_client function
1250 to indicate whether to query the client from server or not if
1253 * Added new command status type SILC_STATUS_ERR_NO_CHANNEL_FOPRIV
1254 to indicate that the client is not channel founder.
1258 Sat Feb 24 00:00:55 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1260 * Removed the rng context from SilcPacketContext structure and
1261 changed that the packet routine uses the Global RNG API.
1263 Fri Feb 23 11:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1265 * Added support for quit message that client can "leave" on the
1266 channel when it quits the SILC. It is ditributed inside the
1267 SILC_NOTIFY_TYPE_SIGNOFF notify type.
1269 Added silc_server_free_client_data that will take the
1270 signoff message as argument.
1272 * Changed SKE routines to use the silc_pkcs_sign/verify routines.
1274 Thu Feb 22 23:05:36 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1276 * Updated parts of the protocol specification to keep it up
1279 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1281 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
1282 payloads in one packet.
1284 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
1285 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
1286 use now the new List flag.
1288 * Also deprecated the following packet types: REPLACE_ID,
1289 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
1291 * Added list support for Notify packet in server.
1293 * Added silc_server_send_notify_channel_change to send the
1294 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
1295 the silc_server_send_replace_id.
1297 * Added silc_server_send_notify_nick_change to send the
1298 NICK_CHANGE notify type. Deprecates the function
1299 silc_server_send_replace_id.
1301 * Added silc_server_send_notify_join to send the JOIN notify type.
1302 Deprecates the function silc_server_send_new_channel_user.
1304 * Added silc_server_send_notify_leave to send LEAVE notify type.
1305 Deprecates the function silc_server_send_remove_channel_user.
1307 * Added silc_server_send_notify_cmode and
1308 silc_server_send_notify_cumode to send CMODE and CUMODE notify
1309 types. Deprecates the silc_server_send_set_mode function.
1311 * Added SERVER_SIGNOFF notify type to indicate that server has
1312 quit. This means that all clients on the channel from that
1313 server will drop. This can be also used when netsplit happens.
1315 Deprecated REMOVE_ID packet type since it is not needed anymore
1318 Added silc_server_send_notify_server_signoff to send the
1319 SERVER_SIGNOFF notify type. Deprecates the function
1320 silc_server_send_remove_id.
1322 Added also silc_server_send_notify_signoff to send the
1323 SIGNOFF notify type.
1325 * Employed the PKCS #1. It is the mandatory way to do RSA in the
1326 SILC protocol from this day on. Changed the protocol
1327 specification as well.
1329 * Added silc_server_send_notify_topic_set to send TOPIC_SET
1330 notify type. It is used between routers to notify about
1331 topic changes on a channel.
1333 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
1336 * Partly updated the protocol specification to comply with the
1337 changes now made. It is still though a bit outdated.
1339 * The JOIN notify type now takes one extra argument <Channel ID>.
1340 The packet used to be destined to the channel but now the
1341 JOIN type may be sent as list thus it is impossible to
1342 destine it to any specific channel. By adding this argument
1343 it is again possible.
1345 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1347 * Added CREDITS file. The CHANGES and CREDITS file will appear
1348 in the distribution as well.
1350 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1352 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
1353 types in the server's silcd/packet_receive.c.
1355 * Implemented CMODE and CUMODE to work in router environment.
1357 * Fixed minor encoding and decoding buglet from the
1358 lib/silccore/silcmode.c.
1360 * Fixed buffer overflow from lib/silcclient/command.c in USERS
1363 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
1365 * Changed all SilcConfigServer* and silc_config_server* to
1366 SilcServerConfig* and silc_server_config*, respectively.
1369 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1371 * Associated the ID (client or server ID) to the Authentication
1372 Payload to avoid any possibility of forging. Updated the
1373 protocol specification and the code accordingly.
1375 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1377 * The RSA key length is now save to the RsaKey context in the
1378 key generation process in lib/silccrypt/rsa.c. The key length
1379 is now used to figure out the maximum size of the block allowed
1380 to be encrypted/signed.
1382 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
1383 is equivalent to the silc_mp_mp2bin but does not allocate any
1386 * Changed silc_mp_mp2bin API to take length argument. If it is
1387 non-zero then the buffer is allocated that large. If zero, then
1388 the size is approximated using silc_mp_sizeinbase, which however
1391 * Created Global RNG API which is global RNG that application can
1392 initialize. After initializing, any routine anywhere in the
1393 code (including library) can use RNG without allocating a new
1394 RNG object. This was done to allow this sort of use of the
1395 RNG in code that has no chance to allocate RNG object. All
1396 applications currently allocate this and many routines in the
1397 library use this. Affected file lib/silccrypt/silcrng.[ch].
1399 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
1400 it to use the Global RNG API.
1402 * Defined Authentication Payload into protocol specification that
1403 is used during SILC session to authenticate entities. It is
1404 used for example by client to authenticate itself to the server
1405 to obtain server operator privileges.
1407 Implemented this payload into the lib/silccore/silcauth.[ch].
1408 Implemented also routines for public key based authentication
1409 as the new protocol specification dictates.
1411 Moved definitions of different authentication methods from
1412 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
1414 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
1415 silc_pkcs_verify and silc_pkcs_sign_with_hash and
1416 silc_pkcs_verify_with_hash functions into the file
1417 lib/silccrypt/silcpkcs.[ch].
1419 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1421 * The client entry's userinfo pointer must be always valid.
1422 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
1423 will fail since it requires the userinfo. Now, the userinfo
1424 is allocated as "" if actual userinfo does not exist. Actually,
1425 it must exist and it is totally Ok to drop client connections
1426 that does not announce the userinfo. However, we will make
1427 this workaround for now.
1429 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
1430 to return the remote port by socket.
1432 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1434 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
1435 SILC_SERVER_PENDING_EXEC and added an new macro
1436 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
1437 data or when error occurs while processing the pending command.
1439 Added new argument `destructor' into silc_server_command_pending
1440 and to the SilcServerCommandPending object. This destructor is
1441 now called after calling the pending callback or if error occurs
1442 immediately. If error occurs the actual pending callback won't
1443 be called at all - only the destructor. The destructor may be
1444 NULL if destructor is not needed.
1446 All this applies for client library code as well. Similar
1447 changes were made there as well for the pending commands.
1449 In the client, the application must now allocate the
1450 SilcClientCommandContext with the silc_client_command_alloc
1453 * Added reference counter to the SilcServerCommandContext. Added
1454 function silc_server_command_alloc and silc_server_command_dup
1457 Same type of functions added to the client library for the same
1460 * Removed the cmd_ident from IDListData away since it is now
1461 global for all connections. It is the command identifier used
1462 in command sending and with pending commands. The affected file
1465 * Added reference counter to the SilcSocketConnection objecet to
1466 indicate the usage count of the object. The object won't be
1467 freed untill the reference counter hits zero. Currently only
1468 server uses this, and client ignores it. The client must be
1469 set to use this too later. The affected files are
1470 lib/silccore/silcsockconn.[ch]. Added also the function
1471 silc_socket_dup to increase the reference counter.
1473 This was mainly added because it is possible that the socket
1474 is removed underneath of pending command or other async
1475 operation. Now it won't be free'd and proper DISCONNECTING
1476 flags, etc. can be set to avoid sending data to connection that
1477 is not valid anymore.
1479 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
1480 the connection. After that it sets SILC_SET_DISCONNECTED.
1481 It is, however, possible that the socket data is not still freed.
1482 The silc_server_packet_process now checks that data is not
1483 read or written to connection that is DISCONNECTED. The socket
1484 get's freed when the reference counter hits zero.
1486 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1488 * Changed the client operation API: channel_message operation's
1489 `sender' is now the client entry of the sender, not the nickname
1490 and the `channel' is the channel entry, not the channel name.
1492 In the private_message operation the `sender' is now also the
1493 client entry of the sender not the nickname.
1495 Affected file is lib/silcclient/ops.h and all applications
1496 using the client operations.
1498 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1500 * Moved the calling of ops->connect() from connect_to_server_final
1501 into receive_new_id functin since that is the point when the
1502 client is actually allowed to send traffic to network. The
1503 affected file is lib/silcclient/client.c.
1505 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1507 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
1508 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
1509 (if needs broadcasting) instead of broadcasting the packets one
1510 by one which would make a burst in the network traffic.
1512 * Added `broadcast' argument to the functions in silcd/server.[ch]
1513 silc_server_create_new_channel[_with_id] to indicate whether
1514 to send New Channel packet to primary router.
1516 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1518 * Added new function into the silcd/server.[ch] files:
1519 silc_server_create_new_channel_with_id to create new channel with
1520 already existing Channel ID.
1522 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
1523 lib/silccore/silcpacket.h. This packet is used t send list of
1524 Set Mode payloads inside one packet. Server uses this to set
1525 the modes for the channels and clients on those channels, that it
1526 announced to the router when it connected to it. The protocol
1527 specification has been updated accordingly.
1529 * The silc_server_new_channel did not handle the packet coming
1530 from normal server as it normally does not send that. However,
1531 when it announces its channels it does send it. Implemented
1532 the support for that.
1534 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
1535 into the file lib/silccore/id.h.
1537 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1539 * Fixed memory leaks in the functions silc_idlist_del_client,
1540 silc_idlist_del_channel and silc_idlist_del_server in the file
1541 silcd/idlist.c. All of those leaked like a sieve.
1543 * Fixed some small memory leaks in the client's function
1544 silc_client_notify_by_server.
1546 * Added functions into silcd/server.c: silc_server_announce_clients,
1547 silc_server_announce_channels and silc_server_announce_server.
1548 These functions are used by normal and router server to announce
1549 to its primary router about clients, channels and servers (when
1550 router) that we own. This is done after we've connected to the
1553 These functions effectively implements the following packet types:
1554 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
1555 and SILC_PACKET_NEW_ID_LIST.
1557 * Added new functions into the silcd/packet_receive.[ch]:
1558 silc_server_new_id_list, silc_server_new_channel_list and
1559 silc_server_new_channel_user_list to handle the incoming
1560 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
1562 * Added support of changing Channel ID in the function
1563 silc_server_replace_id. If the server that announces a channel
1564 to the router already exists in the router (with same name but
1565 with different Channel ID), router is responsible to send
1566 Replace ID packet to the server and force the server to change
1567 the Channel ID to the one router has.
1569 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
1570 client that the Channel ID has been changed by the router. The
1571 normal server sends this to the client. Client must start using
1572 the new Channel ID as the channel's ID.
1574 Implemented handling of this new type into lib/silcclient/client.c
1575 into the function silc_client_notify_by_server.
1577 * Added new function silc_idlist_replace_channel_id into the files
1578 silcd/idlist.[ch] to replace the Channel ID.
1580 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1582 * Call silc_server_command_identify_check always when processing
1583 the IDENTIFY command in silcd/command.c
1585 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1587 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
1588 send keepalive packets. The packet can be sent by clients,
1589 servers and routers.
1591 Added function silc_socket_set_heartbeat into the file
1592 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
1593 If not set, the heartbeat is not performed. The actual
1594 heartbeat is implemented in the low level socket connection
1595 library. However, application is responsible of actually
1598 Added silc_server_send_heartbeat to send the actual heartbeat
1599 packet into silcd/packet_send.[ch]. Server now performs
1600 keepalive with all connections.
1602 * Added silc_task_get_first function into lib/silcutil/silctask.c
1603 to return the timeout task with shortest timeout. There was a bug
1604 in task unregistration that caused problems. TODO has been
1605 updated to include that task system must be rewritten.
1607 * The client library will now resolve the client information when
1608 receiving JOIN notify from server for client that we know but
1609 have incomplete information.
1611 * Rewrote parts of silc_server_remove_from_channels and
1612 silc_server_remove_from_one_channel as they did not remove the
1613 channel in some circumstances even though they should've.
1615 * Encryption problem encountered in server:
1617 The LEAVE command used to send the Channel Key packet to the
1618 router immediately after generating it. However, the code
1619 had earlier sent Remove Channel user packet but not immediately,
1620 ie. it was put to queue. The order of packets in the router
1621 was that Channel Key packet was first and Remove Channel User
1622 packet was second, even though they were encrypted in the
1623 reverse order. For this reason, MAC check failed. Now, this
1624 is fixed by not sending the Channel Key packet immediately but
1625 putting it to queue. However, this is more fundamental problem:
1626 packets that are in queue should actually not be encrypted
1627 because packets that are sent immediately gets encrypted
1628 actually with wrong IV (and thus MAC check fails). So, packets
1629 that are in queue should be encrypted when they are sent to
1630 the wire and not when they put to the queue.
1632 However, the problem is that the current system has not been
1633 designed to work that way. Instead, the packet is encrypted
1634 as soon as possible and left to the queue. The queue is then
1635 just purged into wire. There won't be any fixes for this
1636 any time soon. So, the current semantic for packet sending
1639 o If you send packet to remote host and do not force the send
1640 (the packet will be in queue) then all subsequent packets to the
1641 same remote host must also be put to the queue. Only after the
1642 queue has been purged is it safe again to force the packet
1645 o If you send all packets immediately then it safe to send
1646 any of subsequent packets through the queue, however, after
1647 the first packet is put to queue then any subsequent packets
1648 must also be put to the queue.
1650 Follow these rules and everything works fine.
1652 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1654 * Added new function silc_server_remove_clients_by_server to
1655 remove all client entries from ID list when the server connection
1656 is lost. In this case it is also important to invalidate all
1657 client entires as they hold the invalid server entry. This
1658 fixes fatal bug when server has lost connection and will reconnect
1661 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1663 * Made some sanity checks to silc_server_daemonise like to check
1664 whether the requested user and group actually exists.
1666 * Added sanity check to SKE's silc_ske_responder_finish to check
1667 that the public and private key actually is valid.
1669 * Invalidate the client's nickname when receiving Replace ID
1670 packet and the Client ID is being replaced. This means that the
1671 server will query the nickname if someone needs it (client)
1674 * Sort the ID Cache in client library when the ID Cache data
1675 has changed (needs sorting).
1677 * Do not allow for SILC client to create several connections to
1678 several servers. The client does not support windows right now
1679 and generating multiple connections causes weird behaviour.
1681 Irssi-silc client does support windows and can handle several
1682 connections without problems, see: www.irssi.org and SILC plugin.
1684 * Fixed some places where client was added to the IDList. The
1685 rule of thumb is following (in order to get everything right):
1686 If the client is directly connected local client then the
1687 `connection' argument must be set and `router' argument must be
1688 NULL to silc_idlist_add_client function. If the client is not
1689 directly connected client then the `router' argument must
1690 bet set and the `connection' argument must be NULL to the
1691 silc_idlist_add_client function.
1693 * The funtion silc_server_packet_send_local_channel actually did
1694 not check whether the client was locally connected or not. It
1695 does that now. Fixed a bug related to LEAVE command.
1697 * Fixed Remove Channel User payload parsing bug in server's
1698 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
1700 * The server's silc_server_save_channel_key now checks also the
1701 global ID list for the channel as it might not be in the local
1702 list. Fixed a bug related to LEAVE command.
1704 * Is this the end of the [<unknown>] buglet that has been lurking
1705 around for a long time? A little for loop fix in server's
1706 silc_server_command_whois_parse that is used by both IDENTIFY
1707 and WHOIS command. At least, this was a clear bug and a cause
1708 of one type of [<unknown>] buglet.
1710 * WHOIS and IDENTIFY commands call the function
1711 silc_server_command_[whois/identify]_check function even if
1712 we are not router server.
1714 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1716 * Added --with-gmp configuration option. If set the GMP
1717 is always compiled in the SILC source tree. If not set then
1718 it is checked whether the system has the GMP3 installed. If
1719 it has then the GMP won't be compiled (the system's headers
1720 and library is used), if it doesn't have it then the GMP is
1721 compiled in the SILC source tree.
1723 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1725 * Changed RSA private exponent generation to what PKCS #1
1726 suggests. We try to find the smallest possible d by doing
1727 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
1728 not security fix but optimization.
1730 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1732 * Added new config entry [Identity] to fork the server and run
1733 it as specific user and group. A patch from Bostik.
1735 * Imported Dotconf configuration library into lib/dotconf.
1736 This will be used to create the SILC configuration files later.
1737 It will appear in the distsribution after this commit.
1739 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1741 * A big code auditing weekend happening. Auditing code for
1742 obvious mistakes, bugs and errors. Also, removing any code
1745 Removed files for being obsolete:
1747 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
1748 inline in the file lib/silcutil/silcbuffer.h)
1750 o lib/silcutil/silcbufutil.c (the header has inline versions)
1752 Changed code to fix possible error conditions:
1754 o The buffer formatting routines now check that the destination
1755 buffer really has enough space to add the data. This applies for
1756 both buffer formatting and unformatting
1757 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
1758 unformatting was changed to accomodate following rules:
1759 XXX_*STRING_ALLOC will allocate space for the data into the pointer
1760 sent to the function while XXX_*STRING will not allocate or copy
1761 the data into the buffer. Instead it sets the pointer from the
1762 buffer into the pointer sent as argument (XXX_*STRING used to
1763 require that the pointer must be allocated already). This change
1764 makes this whole thing a bit more consistent and more optimized
1765 (note that the data returned in the unformatting with XXX_*STRING
1766 must not be freed now). The routines return now -1 on error.
1768 o Tried to find all code that use buffer_format and buffer_unformat
1769 and added return value checking to prevent formatting and
1770 especially unformatting errors and possible subsequent fatal
1773 o Changed ske->x and ske->KEY to mallocated pointers in
1774 lib/silcske/silcske.h. Fixed possible data and memory leak.
1776 o Added return value checking to all *_parse* functions. Fixed
1777 many memory leaks as well.
1779 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
1780 so that buffer overflows would not happen. All code now also
1781 checks the return value as it can fail.
1783 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1785 * Added reconnection support to server if the normal server looses
1786 its connection to the router (for example if router is rebooted).
1787 The server performs normal reconnection strategy implemented
1788 to the server. Affected file silcd/server.c.
1790 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1792 * Added new packet type SILC_PACKET_SET_MODE that is used to
1793 distribute the information about changed modes (for clients,
1794 channels and clients channel modes) to all routers in the
1795 network. Updated the protocol specification accordingly.
1797 Added functions into silcd/packet_send.c and
1798 silcd/packet_receive.c: silc_server_send_set_mode,
1799 silc_server_set_mode.
1801 Added new files silcmode.[ch] into lib/silccore that implements
1802 the encoding and decoding of Set Mode Payload. Added new type
1803 SilcSetModePayload. Moved the definitions of different modes
1804 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
1806 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1808 * Oops, a little mistake in server's connection authentication
1809 protocol. The protocol is not ended with FAILURE but with
1810 SUCCESS if the authentication is Ok. :) Affected file is
1813 * Implemented NICK_CHANGE notify handling in server in the file
1814 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
1815 the local clients on the channel. After the changing nickname
1816 in router environment snhould work and the [<unknown>] nickname
1817 should appear no more.
1819 The silc_server_replace_id function that receives the Replace ID
1820 payload now sends the NICK_CHANGE notify type also in the file
1821 silcd/packet_receive.c
1823 * Changed WHOIS and IDENTIFY command to support the maximum amount
1824 of arguments defined in protocol specs (3328 arguments). This
1825 fixed a bug that caused problems when there were more than three
1828 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1830 * Added extra parameter, command identifier, to the
1831 silc_client_send_command so that explicit command identifier
1834 Changed that ID list routines uses specific command identifier
1835 when sending WHOIS/IDENTIFY requests to the server so that they
1836 can be identified when the reply comes back.
1838 Affected files lib/silcclient/command.[ch],
1839 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
1841 * Added `sender' argument to silc_server_packet_send_to_channel
1842 to indicaet the sender who originally sent the packet to us
1843 that we are now re-sending. Ignored if NULL. Affected file
1844 silcd/packet_send.[ch].
1846 * Added some server statistics support in silcd/server_internal.h
1847 SilcServerStatistics structure and around the server code. Also
1848 send some nice statistics information when client is connecting
1851 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1853 * Fixed channel ID decoding in server's JOIN command reply in
1854 silcd/command_reply.c
1856 * Fixed braodcasting of replace ID payload to not to send it if
1857 we are standalone server in silcd/packet_receive.c.
1859 * Fixed all channel message sending routines to not to send
1860 packets to clients that has router set, since they are routed
1861 separately in the same function earlier. Affects file
1862 silcd/packet_send.c and all channel packet sending functions.
1864 * In USERS reply, res_argv[i] are not allocated, the table
1865 is allocated. Thus changed that free the table, not its
1868 * In server's whois_check and identify_check if the client is
1869 locally connected do not send any WHOIS commands - they are not
1872 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1874 * Fixed some minor bugs in client when sending WHOIS command. The
1875 arguments was in wrong order.
1877 * Removed statis function add_to_channel from server in
1878 silcd/command.c that was previously used with the joining but
1881 * Tested USERS command in router environment successfully with two
1882 routers, two servers and two clients.
1884 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1886 * Reorganized the USERS command and command reply in client library
1887 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
1888 When the command is given by user we register a pending command
1889 callback that will reprocess the command after the reply has been
1890 received from the server. When reprocessing the packet we then
1891 display the information. Thus, the USERS information is displayed
1892 now in the command callback instead of in the command reply
1893 callback. The processing of the command is same as previously
1894 when server has sent the command reply in the JOINing process.
1896 * Added to USERS command in silcd/command_reply.c to join the client,
1897 we didn't use to know about, to the channel after we've created
1898 a client entry for it. Also, for clienet we did know already still
1899 check whether it is on the channel or not and add it if not.
1901 * Removed silc_server_command_join_notify as the function and its
1904 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1906 * Changed the client's pending command handling to the same as the
1907 server's pending command handling. It is also now possible to
1908 execute command reply functions from other command reply
1909 function as the function callbacks for commands and command
1910 replies are one and same. The pending commands are not static
1911 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
1912 in client connection context. Thus, pending commands are server
1913 connection specific as it is convenient.
1915 Changed the function silc_client_command_pending and
1916 silc_client_command_pending_del and added new function
1917 silc_client_command_pending_check. Removed the
1918 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
1921 * Added cmd_ident, current command identifier, to the client
1922 connection context in lib/silcclient/client.h to keep track on
1923 command identifiers used in command sending. Client's command reply
1924 function handling now supports the mandatory command identifiers.
1926 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
1927 funtions in client to fully support pending command callbacks.
1929 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
1930 as one of the arguments to the application in the command reply
1933 * NOTE: The FORWARDED flag is depracated. It used to be depracated
1934 before first releasing SILC but came back. Now it is removed again
1935 and should come back nomore. The FORWARDED flag was used only
1936 by the JOINing procedure by forwarding the command packet to router.
1937 Now, the JOINing procedure has been changed to more generic (due
1938 to various router environment issues) and FORWARDED is not needed
1939 anymore for anything. The protocol specification is yet to be
1942 Now, removed silc_server_packet_forward from server and the flag
1943 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
1945 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1947 * Renamed NAMES command to USERS command. The NAMES was named that
1948 due to historical reasons. Now it is renamed. Also, rewrote
1949 parts of the USERS command. The nickname list is not sent anymore
1950 by the server. Only Client ID and mode lists are sent in the USERS
1951 command. Changed this also to the protocol specification.
1953 The client now resolves the names and stuff after it receives
1954 the USERS list from the server when joining to the channel.
1956 * WHOIS and IDENTIFY commands has been changed to support multiple
1957 Client ID's per command. One can now search for multiple users
1958 in the network by sending only one WHOIS or IDENTIFY command.
1959 Changed the code and the protocol specifications.
1961 * Removed silc_server_command_identify_parse and changed that IDENTIFY
1962 uses silc_server_command_whois_parse to parse the request. */
1964 * If normal server, do not parse the WHOIS and IDENTIFY requests
1965 before sending it to the router. Saves some time.
1967 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1969 * Fixed JOIN command on client library. Wrong number of arguments
1970 used to crash the client.
1972 * Added silc_server_channel_has_global function to check whether
1973 channel has global users or not.
1975 * Added silc_server_channel_has_local function to check whether channel
1976 has locally connected clients on the channel.
1978 * The silc_server_remove_from_one_channel now checks whether the
1979 channel has global users or not after given client was removed from
1980 the channel. It also checks whether the channel has local clients
1981 on the channel anymore. If it does not have then the channel entry
1982 is removed as it is not needed anymore.
1984 * The silc_server_notify now checks on JOIN notify whether the joining
1985 client is one of locally connected or global. If it is global then
1986 the channel has now global users on the channel and that is marked
1987 to the channel entry. Also, it now saves the global client to
1988 global list who is joining and JOINs it to the channel. This is
1989 for normal server, that is.
1991 Changed silc_server_send_notify_on_channel,
1992 silc_server_packet_relay_to_channel and
1993 silc_server_packet_send_to_channel check if we are normal server
1994 and client has router set (ie. global client) do not send the
1995 message to that client, as it is already routed to our router.
1997 * Implemented LEAVE notify type handling in silc_server_notify
2000 * Tested LEAVE command in router environment successfully. Tested
2001 with two routers, two servers and two clients.
2005 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
2007 * Implemented SIGNOFF notify type handling in silc_server_notify
2010 * silc_server_remove_id now removes the client entry from all channels
2011 it has joined and thusly sends SIGNOFF notify type.
2013 * Rewrote the NAMES list generation in server by removing two excess
2014 loops. The lists are created now inside one loop.
2016 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
2018 * silc_server_remove_channel_user checks now also global list
2019 for channel and client.
2021 * silc_server_new_channel_user checks now both local and global
2022 list for channel and client. Fixed a bug in client id decoding.
2023 Used to decode wrong buffer.
2025 * silc_server_channel_message checks now both local and global
2026 list for channel entry.
2028 * Tested channel joining (hence JOIN) in router environment
2029 successfully. Tested with two routers, two servers and two
2032 * Tested channel message sending in router environment successfully.
2034 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
2036 * Added silc_server_save_channel_key into server.[ch] to save the
2037 received channel key in Channel Key payload processing. It is
2038 also used in JOIN command reply handling.
2040 Equivalent function silc_client_save_channel_key added into
2041 client.[ch] into client library.
2043 * Changed JOIN command reply to send information whether the channel
2044 was created or not (is existing already) and the channel key
2045 payload. Changed protocol specs accordingly.
2047 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
2048 the request was sent by ID and not by nickname. Crashed on
2051 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2053 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
2054 now correctly save the received data.
2056 * silc_server_free_sock_user_data now notifies routers in the
2057 network about entities leaving the network.
2059 At the same time implemented functions silc_server_remove_id
2060 and silc_server_send_remove_id to receive and send REMOVE_ID
2061 packets. The packet is used to notify routers in the network
2062 about leaving entities. The ID removed will become invalid in
2065 * Added function silc_idlist_del_server into server. Removes and
2066 free's server entry from ID list.
2068 * silc_server_private_message function now checks, if we are router,
2069 that the destination ID really is valid ID, naturally.
2071 * In router when NEW_ID packet is received (for new client) the
2072 hash of the Client ID is saved in the ID Cache but the
2073 client->nickname is set to NULL, instead of putting the hash
2076 IDENTIFY command now also checks that client->nickname must be
2077 valid. If it is not if will request the data from the server who
2078 owns the client. Added new function
2079 silc_server_command_identify_check.
2081 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
2082 to set the command to already allocated Command Payload.
2084 * Tested private message sending in router environment with two
2085 routers, two servers and two clients. Fixed minor bugs and now
2088 * Fixed segfault from client's NAMES command. Used to crash if
2091 * Forwarded packets must not be routed even if it is not destined
2092 to the receiver. Changed server code comply with this.
2094 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2096 * Added `require_reverse_mapping' boolean value to ServerParams
2097 structure. If TRUE (not default) the server will require that
2098 the connecting host has fully qualified domain name.
2100 If the reverse mapping is not required and hostname could not be
2101 found the IP address is used as hostname.
2103 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2105 * Implemented version string checking to both client and server.
2106 The check is incomplete currently due to the abnormal version
2107 strings used in development version of SILC.
2109 * Changed all command functions in server to use the new
2112 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2114 * Changed char *data to unsigned char *data in ID Cache system to
2115 support binary data as ID Cache data. Changed code to support
2116 binary data in lib/silccore/idcache.c.
2118 * Renamed silc_server_packet_relay_command_reply to
2119 silc_server_command_reply as it is normal packet receiving
2120 function. Rewrote the function to accept command replys for
2121 servers and not only for clients.
2123 * Mark remote router always as registered server if we are connecting
2124 to it. Otherwise, commands sent by the router to us are ignored.
2126 * All ID List find routines now returns the ID Cache Entry pointer
2127 as well if requested.
2129 * WHOIS command works now in router environment, tested with two
2130 routers, two servers and two clients.
2132 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
2133 in router environment (as it is almost equivalent to WHOIS) but
2134 hasn't been tested thoroughly. Added new functions:
2136 silc_server_command_identify_parse
2137 silc_server_command_identify_send_reply
2138 silc_server_command_identify_from_client
2139 silc_server_command_identify_from_server
2141 * Disabled route cache adding because adding two different ID's with
2142 same IP replaces the old cache entry thus giving wrong route.
2143 The entry->router->connection is always the fastest route anyway
2144 so route cache may not be needed. Of course, new routes maybe
2145 established after receiving the ID when the entry->router->connection
2146 might not be anymore the most optimal.
2148 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2150 * Add route cache for received ID for fast routing.
2152 * Added silc_server_packet_route to route received packet on router
2153 that is not destined to us.
2155 * Renamed silc_server_get_route to silc_server_route_get.
2157 * Added id_string and id_string_len fields into SilcServer to
2158 include encoded ServerID for fast comparing without excess
2159 encoding of the ID's.
2161 * Cleaned up WHOIS command on server side. Added following static
2164 silc_server_command_whois_parse
2165 silc_server_command_whois_check
2166 silc_server_command_whois_send_reply
2167 silc_server_command_whois_from_client
2168 silc_server_command_whois_from_server
2170 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
2171 arguments in command replies. All command functions should be
2172 updated to use this macro.
2174 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2176 * Minor typo fixes on command reply handling on server.
2178 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2180 * Added silc_server_command_add_to_channel internal routine to add
2181 the client to the channel after router has created the channel and
2182 sent command reply to the server.
2184 * Added generic silc_server_send_command to send any command from
2187 * Use static buffer with ID rendering instead of duplicating data.
2189 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2191 * Fixed a channel user mode bug when joining to a channel server gave
2192 everybody channel founder rights, oops.
2194 * We mark ourselves as the router of the incoming server connection
2195 if we are router ourselves. This way we can check in some packet
2196 sending functions whether it is locally connected server. For
2197 incoming router connections we put NULL.
2199 * For router sending packets locally means now always sending the
2200 packet cell wide; to local clients and local servers. For normal
2201 server sending packet locally means sending it to only local
2204 * Fixed the JOIN command to really work in router environment. If the
2205 channel is created it is always created by the router. Router is
2206 also responsible of making the initial joining to the channel,
2207 sending JOIN notify to the sending server and distributing
2208 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
2209 does not exist server doesn't do anything else but forward the
2210 command to the router which performs everything.
2212 * Added silc_server_send_channel_key function to send the Channel Key
2215 * Added silc_server_create_channel_key to create new channel key. The
2216 channel key is now re-generated everytime someone joins or leaves
2217 a channel, as protocol dictates. Note: channel->key_len is the
2220 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2222 * Splitted server.[ch] finally. Created now packet_send.[ch] and
2223 packet_receive.[ch] to separate packet sending and receiving
2224 routines. The server.[ch] now includes everything else including
2225 actual packet processing (writing and reading data) and other
2228 Renamed silc_server_private_message_send_internal to
2229 silc_server_send_private_message. The routine is still though
2230 used only to relay private messages as server does not send
2231 private messages itself.
2233 Renamed silc_server_new_channel to silc_server_create_new_channel
2234 and added new function sicl_server_new_channel that handles the
2235 incoming New Channel packet. Added also new sending function
2236 silc_server_send_new_channel to send New Channel Payload.
2238 * Added new function silc_server_notify to process incoming notify
2239 packet to the server/router. Server may then relay the notify
2240 to clients if needed.
2242 * Added new function silc_server_new_channel_user to process incoming
2243 New Channel User packet. Router will redistribute the packet and
2244 send JOIN notify to its local clients and locally connected servers
2245 if needed. Normal server will send JOIN notify to its local client
2246 on same channel when received this packet. Added also corresponding
2247 sending function silc_server_send_new_channel_user to sent the
2250 * Added boolean route argument to send_notif_to_channel and
2251 packet_send_to_channel functions to attempt to route the packet
2252 if it is TRUE and send only locally if it is FALSE.
2254 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2256 * silc_server_replace_id now broadcasts the received replace ID
2257 packet if it is not broadcast packet already. The router must
2258 broadcast to inform other routers about changed ID.
2260 * Added backpointer to server's router into SilcServer context in
2261 silcd/server_internal.h.
2263 * Fixed silc_server_packet_broadcast to send correct broadcast
2266 * The channel key is now distributed to the local client as soon
2267 as it is received from the router (in router environment) so that
2268 no other packet may be sent for the channel until client has
2271 * silc_server_remove_channel_user now broadcasts the received
2272 Remove Channel User packet if it is not broadcast packet already.
2273 The router must broadcast to inform other routers about removed
2276 * Added users field into SilcPacketContext that is a reference count
2277 of the context. One can increase the reference count by calling
2278 silc_packet_context_dup which is now changed to just increase the
2279 reference count instead of duplicating the data. The reference
2280 count is decresed by calling silc_packet_context_free that will
2281 free the data after the reference count hits zero.
2283 For now on the packet context and everything allocated into it
2284 (including the raw packet from network) must be freed by calling
2285 the new silc_packet_context_free function. Added also new function
2286 silc_packet_context_alloc that must be used now to allocate the
2287 context. This also means that if a routine is asynchronous from
2288 silc_[client/server]_packet_parse_type the packet context must
2289 be duplicated by calling silc_packet_context_dup. Otherwise it
2290 gets free'd after silc_[client/server]_packet_parse_type returns.
2291 Also, one must remember that if packet is duplicated then its
2292 reference count must be decresed by calling the free function as
2293 many times as it was duplicated.
2295 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
2296 from both client and server.
2298 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2300 * Made joining to a channel working in router environment.
2302 * Cleaned up JOIN command on server side and create function
2303 silc_server_command_join_channel internal routine to make the
2306 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2308 * Changed silc_command_pending list to SilcDList. Also, added
2309 `ident' field to SilcServerCommandPending structure to identify
2310 the reply and to call correct callback.
2312 Added silc_server_command_pending_check function to replace the
2313 corresnponding macro. The silc_command_pending list is not
2316 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
2317 to set identifier to previously allocated Command Payload. It
2318 is used to set identifier for command when resending Command
2321 * Added silc_command_payload_encode_payload to encode Command
2322 Payload buffer from SilcCommandPayload structure.
2324 * Added silc_argument_payload_encode_payload to encode Argument
2325 payload buffer from SilcArgumentPayload structure.
2327 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2329 * Changed WHOIS command to support router connection on server side.
2330 The whois request is always sent to router unless the server is
2331 standalone server. After server has received the reply from the
2332 router will it send the reply to the client.
2334 * Added silc_server_packet_broadcast into silcd/server.[ch] to
2335 broadcast received broadcast packet. The function is used only
2336 by router. The broadcast packet is always sent to the router's
2339 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
2340 render given ID to printable string, for log files for example.
2342 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2344 * Made basic router to router connections working. At least they
2345 can now connect to each other but nothing really works the way
2346 they are supposed - yet.
2348 * Added new initiator token to RouterConnection configuration
2349 file in silcd/serverconfig.[ch]. It is used to tell whether we
2350 are the initiator to the remote router or whether we'll expect
2351 the other end to connect.
2353 * Moved registering of listener task to silc_server_init, hence
2354 the server starts listenning as soon as it is run, even if it
2355 does not have connections to other routers. Let's see how well
2358 * Changed default connection retry timeouts for more suitable in
2361 * Removed cipher and such arguments from silc_idlist_add_client
2362 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
2363 Added new function silc_idlist_add_data to add the keys and stuff
2366 * Added SilcIDListData structure and added it to SilcClientEntry
2367 and SilcServerEntry as their first field in the structure. This
2368 way we can explicitly cast the ID entries to the SilcIDListData
2369 structure and get common data for the entries. In past, we had
2370 to first check what type of connection it is and then cast it to
2371 correct ID entry type. Now, we can directly cast the opaque
2372 pointer to the SilcIDListData (no matter what ID entry it actually
2373 is) and get the data needed.
2375 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2377 * Wow, found a bug in scheduler. The scheduler uninitialized itself
2378 in some circumstances even if threre were timeout tasks, though not
2379 IO tasks, but tasks anyway. Now fixed.
2381 * Defined SilcServerConnection structure to hold connection specific
2382 stuff about directly connected servers and routers. The definition
2383 is currently in silcd/server_internal.h. I thought about having
2384 a bit more important role fro this struct but for now it is used
2385 only when connecting to other server (or router actually).
2387 * Added connecting retry support in server when connecting to
2388 router(s). The retry feature implement exponential backoff
2389 algorithm. Also, added SilcServerParams structure to hold default
2390 parameters for server. For now, it include these retry settings
2391 and are hard coded. After server is moded to be as Silc Server
2392 Library this structure will be more important.
2394 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2396 * Changed client librarys channel->clients table to SilcList and
2397 changed code accordingly.
2399 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2401 * Changed client's channel table to SilcList and changed code
2402 accordingly. Also changed SilcChannelClientEntry to include back-
2403 pointer to the channel so that client entry can use that structure
2404 as list as well and we have fast cross-reference to the channel.
2405 This change dramatically decreased the complexity of channel
2406 handling with client entry and vice versa (removed one extra
2407 loop when searching for channel entry from many functions).
2409 * Changed server->sim from table to SilcDList and changed code
2412 * NAMES command can now be used from user interface. It will show
2413 the user list on the channel, neatly.
2415 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
2416 Code now saves realname of the user if it becomes available.
2418 * Renamed configure.in to configure.in.pre and made ./prepare
2419 script to automatically add correct version string to
2420 configure.in which it creates from configure.in.pre.
2422 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2424 * NAMES command reply now shows users mode with the nickname when
2427 * Moved silc_client_ch[u]mode[_char] functions from
2428 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
2429 place sucks, they are utility functions and should be in some
2432 * Fixed some unsigned int's to unsigned short's. Patch by cras.
2434 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
2437 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2441 * Added TRQ (efficient deque and list library) into lib/trq. This is
2442 a very good list library that is currently used in the SILC. Defined
2443 SilcList API over the library because I didn't like the API very
2444 much. See lib/trq/silclist.h for the API and examples of how to
2445 use the API. Fixed various places in the code to use the new
2446 SilcList API. The SilcList is meant for lists that has a structure
2447 already defined as a list. It is not suitable to add just some
2448 context to the list (in TRQ, the context is the list actually).
2450 So, I defined SilcDList that can be used for the purpose where
2451 predefined list structure does not exit. This can be used as
2452 such list. Now some context just can be added to the SilcDList.
2453 Currently this list is not used in the SILC just yet, though there
2454 are a lot places where this can replace dynamically allocated
2455 tables and I will fix these places, later, to use SilcDList.
2456 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
2457 and use TRQ internally).
2459 Also fixed some annoying warning messages that the original TRQ
2460 code generated. Also minor changes to TRQ's Makefile.in.
2462 * Added support for querying by Client ID to both WHOIS and
2463 IDENTIFY commands into server, as required by the protocol.
2465 * Removed method function pointers from SilcBuffer structure. They
2466 weren't used to anything and just increased the context size for
2467 no good reason. This change also made silc_buffer_alloc and
2468 silc_buffer_free functions inline functions.
2470 * Disabled command flooding detection support until it's fixed so
2471 that it accepts commands in but does not execute them more than once
2474 * Added silc_net_localhost(), to return local hostname, into
2475 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
2476 that must be initialized before calling silc_client_init.
2478 * Added new function: silc_server_send_notify_on_channels to send
2479 notify messages to all channels client has joined. It is assured
2480 that the message is sent only once per client.
2482 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
2483 lib/silcutil/silcutil.[ch] as silc_format function. The new
2484 function is generic and is used by server as well, not only by
2485 the logging routines.
2487 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
2488 the provided version string was not acceptable. Added new function:
2489 silc_ske_check_version into lib/silcske/silcske.h. The function
2490 must be implemented by the application (client or server) and it
2491 does not reside in the SKE library. The function checks the version
2492 string remote end sent.
2494 * Added back pointers (to opaque context and to SilcSocketConnection)
2495 into SilcPacketContext structure into lib/silccore/silcpacket.h.
2497 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
2498 duplicate packet context structure.
2500 * Changed `notify' client operation to send same arguments as client
2501 receives from server except for ID's. ID's are mapped to correct
2502 ID entry and that is returned. Also, if channel entry is not sent
2503 by server but the notify is for channel the channel entry is sent
2504 to application (otherwise application doesn't know that it is for
2505 channel (library gets it from packet's Destination ID)).
2507 * Added silc_client_remove_from_channels into client library to
2508 remove a client from all channels it has joined to. Used when
2509 received SIGNOFF notify from server. Added also new function
2510 silc_client_replace_from_channels to replace old ID entry with
2511 new ID entry on all channels. Used when received NICK_CHANGE
2514 * Fixed ID Cache list handling in silc_idlist_get_client in
2515 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
2516 to get (or query) client by ID.
2518 * Updated TODO list.
2520 * Added connection authentication status message defined by the
2521 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
2522 support for these into the code in client and server side.
2524 * Added generic function silc_client_send_command to send any command
2525 with variable argument list. Application should use this function
2526 to send commands if the command functions provided by the library
2527 does not suite for the application's user interface needs.
2529 * Added new `failure' client operation. Application is notified about
2530 received failure packet if client is executing a protocol. In this
2531 case the protocol's execution has failed.
2533 * Added SKE's end notify to send the SKE_SUCCESS notify message that
2534 is required by the protocol.
2536 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
2537 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
2540 * Added status flag to SilcSKE object to indicate realtime status
2541 of the SKE protocol.
2543 * Application receives now exactly same command reply arguments as
2544 the library receives from server. However, if ID is received the
2545 corresponding ID entry is returned to the application (eg. Client
2546 ID is mapped to correct SilcClientEntry entry and that is returned).
2547 Changed command_reply client operation due to this change.
2549 * Changed all ID's in commands and in command replys as ID Payloads.
2550 Change affected both client and server side codes.
2552 All ID's sent in SILC network (with execption of ID's in SILC
2553 Packet header) are sent in ID Payload to support variable length
2556 * Server now notifies nick changes and notifies all clients on
2557 the channels about the new nickname (about the new Client ID,
2560 * Implemented CMODE command to change channel modes. Supports all
2561 channel modes defined by the protocol specs except ban and invite
2562 lists. (Also, private channel key mode is supported but support for
2563 setting private channel key in client is missing, thus, this mode
2564 has no effect on client side (except that server requires that the
2565 client uses private channel key and normal channel traffic does not
2568 Also, invite mode works per se, but INVITE command does not work
2569 yet correctly, so you can set channel as invite only channel but
2570 inviting clients to the channel does not work (it is yet to be
2571 thought what's the best way to do it).
2573 * Added new command SILC_COMMAND_CUMODE to change user mode on the
2574 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
2575 Implemented CUMODE command to change user's mode on the channel.
2576 Supports all modes defined by the protocol specs.
2578 * Added NAMES command reply to return users modes on the channel.
2580 * Removed unnecessary and slow ciphers from lib/silccrypt.
2582 * Set SO_KEEPALIVE option to connection sockets by default.
2584 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
2586 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
2587 redefined the Notify Payload into protocol specs.
2589 * Added silc_id_payload_parse_id to get ID directly from raw
2592 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2594 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
2595 accept searching by Client ID as well.
2597 * Added support for LEAVE and SIGNOFF notify types in client library.
2599 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
2600 to parse ID Payload from raw data.
2602 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2604 * Added flags parameter into silc_ske_assemble_security_properties
2605 function in lib/silcske/silcske.[ch].
2607 * Changed notify client operation to fit better for notify messages
2608 sent by server. The notify payload received from server is now
2609 passed to the application (after parsing it to SilcNotifyPayload).
2610 It is application's responsibility to retrieve the arguments
2611 from the payload and show the message the way it wants. The message
2612 sent by server is implementation specific.
2614 * Changed public keys to comply with the protocol specification.
2615 Old public keys are not supported anymore and are not compatible.
2617 * Removed nickname from Channel Payload as the latest draft removed
2618 it. The client must resolve the nickname from the NAMES command
2619 reply received when it joined the channel.
2621 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
2623 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2625 * Fixed some errors in protocol specification drafts.
2627 * Created lib/silccore/silcnotify.c to implement Notify Payload
2628 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
2629 generic payloads described by protocol specifications. The file
2630 includes implementations for ID Payload and Argument Payload.
2632 * Changed Command Payload implementation to use the new Argument
2633 Payload. Changed command_xxxx_payload to command_payload_xxxx
2634 to comply with SILC coding conventions.
2636 * Added suppport for Argument Payload handling in Notify Payload
2637 implementation as protocol requires it. Added the new support
2638 into server and client lib as well.
2640 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2642 * Added support for multiple nicknames on same channel. [n] is
2643 added locally to the nickname if there are more than one same
2644 nicknames on the channel.
2646 * Server now sends all nicknames that matched WHOIS request.
2647 Client also shows the list received from server.
2649 * Added TOPIC command to client side. User can now set and show
2650 current topic on channel.
2652 * Added MOTD command to client and server. Also, server sends the
2653 motd when client connects to the server.
2655 * Changed version strings to comply ISO 8601.
2657 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2659 * Fixed protocol error handling in client library. It should now
2660 cope even if the SKE fails for some reason.
2662 * Made new protocol specification drafts for submitting to IETF.
2664 * Implemented TOPIC command to server in silcd/command.c.
2666 * Added two new notify types into lib/silccore/silcnotify.h:
2667 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
2668 notify nickname change and topic setting/change on a channel.
2670 * API change of command_reply operation in client library. The
2671 application gets now the status type received from server as well.
2673 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2675 * Removed the function just added to lib/silcutil/silcschedule.[ch].
2677 * Cras fixed and optimized the packet handling even further and
2678 it should work now. Minor change to the prototype of function
2679 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
2681 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2683 * Added new function into lib/silcutil/silcschedule.[ch]:
2684 silc_schedule_with_fd to select() a specified fd. The function
2685 returns after timeout expires or data arrives or goes. The
2686 function is used by packet routines to wait that all data is
2687 received from network.
2689 * Fixed data reading from network in lib/silccore/silcpacket.c.
2690 The code now assures that all data is read from the fd and then
2691 continues packet processing. This was a bug fix since the code
2692 used to drop some data in some circumstances.
2694 * Added new function into lib/silcclient/client.[ch]:
2695 silc_client_start_key_exchange to start key exchange after
2696 connection has been established to server. The code internally
2697 now uses this funtion but its main purpose was to provide it
2698 for applications that perform their own connecting. After
2699 application has created a connection it merely calls this
2700 function to start the key exchange between client and server.
2701 The library takes care of everything else after that.
2703 Updated also lib/silcclient/README to explain the usage of
2706 * Do not send to application information that connection has
2707 been established. Application gets notified it by connect
2710 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2712 * Applied cras's patch to add silc_schedule_one function. The
2713 function runs scheduler once and returns.
2715 * Fixed the scheduler after cras messed it up. The timeout
2716 handling works now as it's supposed to work.
2718 * Added into lib/silccore/ silcnotify.h to include notify
2719 message types support. Changed silc_server_send_notify*
2720 functions, in server.[ch], to support those new notify types.
2721 Added the support for the notify types into client library,
2722 as well. Added new notify client operation into ops.h in
2725 * Changed silc_server_packet_send_to_channel to send normal
2726 packets instead of just channel message packets. The function
2727 is now used to send the notify packets to channels. It is not
2728 used to send channel message packets anymore, as server never
2731 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
2732 va_arg()s as it seems to require it nowadays. I guess, if SILC
2733 is compiled with older va_arg() the new code should work anyway.
2735 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2737 * Splitted core library. Core library (lib/silccore) includes
2738 now only SILC protocol specific core (and common) components.
2739 Created new utility library (lib/silcutil) that includes more
2740 generic purpose stuff. The stuff for util library was taken
2741 from the old core library. This was minor and easy split.
2743 * Created SILC Client Library (lib/silcclient) that includes
2744 implementation of the SILC client without user interface. This
2745 was major move from silc/ directory. The code has been changed
2746 so that it is transparent towards the user interface. The
2747 silc/ directory includes now the same user interface as before
2748 and it uses the new client library. Read lib/silcclient/README.
2749 Basicly, the client library performs everything else related
2750 to SILC except user interface handling. Also, configuration
2751 files are considered to be part of user interface and library
2752 does not handle them.
2754 This change also changed a lot of structures, function naming etc.
2755 Most important change was that SilcClientWindow object was
2756 renamed to SilcClientConnection in the client library. Created
2757 also new file lib/silcclient/ops.h. Also added new files
2758 silc/local_command.[ch] and silc/client_ops.[ch].
2760 All these changes were made to make it easier for user interface
2761 designers to create what ever user interface for the SILC client
2764 It is also expected that the server will be moved to lib
2765 directory as well and SILC Server Library will be created;
2766 sometimes in the future.
2768 * Removed Local commands from lib/silccore/silccommand.h as
2769 they are application specific and new client library does not
2770 handle any of those anymore.
2772 * Several functions moved to lib/silcutil/silcutilc.[ch] from
2773 old client implementation in silc/.
2775 * Added support for callback functions in SILC_LOG_* macros.
2776 Application can now set its own callbacks that will be called
2777 instead of using the default functions that will always print
2778 the debug messages to stderr (or stdout). Also, debugging can
2779 now be disabled by setting silc_debug to FALSE and re-enabled by
2780 setting it to TRUE. Note, that logging will still work even
2781 if debugging is disabled.
2783 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
2784 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
2785 silc_log_reset_debug_callbacks.
2787 * To enable debugging in silc client one must give now -d
2788 option on command line.
2790 * Changed silc_schedule_init to automatically allocate task queues
2791 if they are not allocated before calling it.
2793 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2795 * Added GMP 3.1 into math library.
2797 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2799 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
2800 a channel in SILC network. The packet is used by servers and
2801 routers to notify other routers that user has left a channel.
2802 This little feature was missing until now. Added the feature
2803 to protocol specification as well.
2805 Added functions: silc_server_send_remove_channel_user and
2806 silc_server_remove_channel_user into server.[ch].
2808 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
2809 lib/silccore/silcpacket.h. However, they are not implemented
2812 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2814 * Fixed joining to a channel and sending channel messages
2815 between server and router. The channel message sending should
2816 now work inside a cell.
2818 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2820 * Fixed the private message sending between server and router.
2821 The private message sending should now work inside a cell.
2823 * Added silc_server_replace_id into server.[ch] to replace
2824 existing ID in the SILC network.
2826 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
2827 and silc_idlist_replace_server_id into idlist.[ch] in server.
2829 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2831 * Fixed the server to server connections. Server can again now
2832 connect to router. Router to router connections probably does
2835 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2837 * Added dynamic protocol registering support. Now protocols can
2838 registered and unregistered on the fly. Patch by cras.
2840 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2842 * Added lib/contrib directory to hold routines that some platforms
2843 don't have but are needed by SILC.
2845 * Added getopt.c, getopt1.c and getopt.h from GNU C library
2846 into lin/contrib to provide getopt() and getopt_long() for
2847 those who don't have it.
2849 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2851 * Added AWAY command to client. When away message is set and
2852 client receives a private message packet the client automatically
2853 replies to the sender with the away message.
2855 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
2856 bug seemed to be the cause of recent problems when compiling
2859 * Added version detection support to SKE protocol specification
2860 and added the new changes to the SKE implementation as well.
2861 There were other minor changes in the SKE protocol as well.
2863 Many changes in lib/silcske/silcske.[ch] and in
2864 lib/silcske/payload.[ch].
2866 * Added ^U functionality, clear input line. Patch from cras.
2868 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2870 * Mainly small bugfixes on core library. Fixed some debugging
2871 logging and buffer overflow in silclog.c.
2873 * Updated config.sub and config.guess on the distribution tree.
2875 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2877 * Added command lagging support in server. Client may execute
2878 commands now only once in two seconds.
2880 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2882 * Optimized packet reception. MAC computation and checking is now
2883 also more optimized. A lot previously duplicated code is now
2884 used as generic by both client and server.
2886 * Fixed key pair generation in clientutil.c
2888 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2890 * Added into lib/silccore/silcbufutil.[ch] new function;
2891 silc_buffer_realloc.
2893 * Moved generic packet sending/encryption functions to
2894 lib/silccore/silcpacket.[ch] from client and server. Some
2895 rewriting of the functions.
2897 * Moved all generic packet reception/decryption functions to
2898 lib/silccore/silcpacket.[ch] from client and server. The
2899 packet processing is now much cleaner in both client and server.
2900 These were major changes in both client and server.
2902 * Created many common functions in server to do packet sending.
2903 Previously code were duplicated a lot, this has been removed
2906 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2908 * Rewrote major parts of the ID cache system. Don't know
2909 whether it is better now or not but at least the API is more
2912 * Major rewrite on ID cache stuff on client because of the ID
2913 cache API changes. Added idlist.c to client.
2915 * Also major rewrite on ID cache stuff on server as well.
2916 Major rewrite of idlist.[ch]. SilcXXXList's are now named
2917 SilcXXXEntry's. We won't keep anymore idlist specific pointers
2918 in hand, instead they are all put into the ID cache system now.
2919 All server_idlist_* routines uses ID cache now instead of
2920 traversing its own lists (those lists does not exist anymore).
2921 SilcIDList though still exists. Also, SilcXXXEntry's are
2924 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2926 * Finally made the SKE implementation compliant to the protocol
2927 specification. All mp integers are now binary encoded as
2928 opposed being HEX encoded.
2930 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
2933 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
2934 functions: silc_[encode/decode]_pem. Also added function
2935 silc_encode_pem_file to PEM encode with newlines ('\n') for
2938 * SILC public keys are now encoded either PEM or binary. Same
2939 option is for private keys as well. By default private keys
2940 are binary encoded and public keys PEM encoded. Silly HEX
2941 encoding were removed.
2943 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
2944 function to create fingerprints.
2946 * Fixed a bug in SHA1; does not change the original data anymore.
2948 * Partly implemented INFO command on client and server side.
2949 Fixed CLEAR command. Changes to SERVER command; show current
2950 server(s) when giving command without arguments. Added
2951 VERSION command to client.
2953 * Added check to server that unregistered connections cannot
2954 execute commands (unless it is specificly allowed).
2956 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2958 * Fixed screen refresh.
2960 * Fixed channel joining bug from client. On some circumstances
2961 client tried to join to a channel it had already joined.
2963 * Added public key verification process into client's protocol.c.
2964 The client now verifies the public key from user and saves
2965 it into ~./silc/serverkeys/ directory.
2967 Added into: clientutil.[ch]: silc_client_verify_server_key.
2969 * Changed SKE protocol's silc_ske_initiator_finish function
2970 to accept callback function that verifies the received public
2971 key. Removed old silc_ske_verify_public_key function.
2973 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2975 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
2976 silc_pkcs_private_key[_data]_set.
2978 * Made the password and public authentication more cleaner in
2979 server's protocol.c.
2981 * Removed historic and obsolete protocol `channel_auth' from
2982 both client and server.
2984 * Removed wrong way of sending command status messages from
2985 server to client in server's command.c. The old way violated
2986 protocol specification.
2988 Changes to silccore/silccommand.[ch]: removed
2989 silc_command_encode_status_payload -> not needed anymore,
2990 changed silc_command_encode_payload_va to accept extra
2991 argument on variable argument list. The argument type must
2992 now be provided to the function. Also, added new function:
2993 silc_command_encode_reply_payload_va which is same as
2994 normal command_encode_payload_va except command status type
2995 is provided as extra argument.
2997 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2999 * Added ~./silc directory handling. The directory includes the
3000 public and private keys for the client.
3002 Added silc_client_check_silc_dir, silc_client_create_identifier
3003 and silc_client_load_keys.
3005 * Implemented SILC protocol compliant public key. Added public
3006 and private key saving to and loading from files.
3008 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
3009 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
3010 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
3011 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
3012 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
3014 Implemented: silc_pkcs_save_[public/private]_key[_data] and
3015 silc_pkcs_load_[public/private]_key.
3017 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
3019 * Added silc_server_get_route (route.[ch]) to get connection
3020 data for the fastest route for given ID.
3022 * Implemented INVITE command on client and server. The command
3023 were re-defined in the SILC Protocol Specification and the
3024 implementation now complies with the specification.
3026 * Implemented PING command on client and server.
3028 * Implemented NAMES command on client and server. The server side
3029 supports currently only normal server not router server yet.
3030 Some changes to NAMES definition in SILC protocol specification.
3032 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
3034 * Implemented LEAVE command on client and server.
3036 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
3037 again. This change was made to the protocol as well. Server
3038 should not violate the protocol specification anymore.
3040 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
3042 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
3043 was tested. SOCKS4 was not but should work anyway.
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