1 Sun Mar 18 21:02:47 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
3 * Added SILC_NOTIFY_TYPE_KILLED notify type. It is sent when
4 an client is killed from the SILC Network. Updated the protocol
7 Added new function silc_server_send_notify_killed to the
8 silcd/packet_send.[ch].
10 * Added function silc_server_packet_relay_notify to relay notify
11 packets that are destined directly to a client. In this case
12 the server does not process the notify packets but merely relays
13 it to the client. Affected file silcd/packet_send.[ch].
15 Added also silc_server_packet_process_relay_notify to check
16 whereto relay the notify. Affected file is
17 silcd/packet_receive.[ch].
19 * Implemented KILL command to the server.
23 * Added the backup schema desgined last fall to the protocol
24 specs for everyone to see. The specification is in the
25 *-spec-xx.txt draft and the packet type definitions for the
26 backup routers is in *-pp-xx.txt draft. Thusly, added also
27 new packet type SILC_PACKET_CELL_ROUTERS.
29 * A big security problem in the implementation discovered. The
30 signoff of an client did not cause new channel key generation
31 which it of course should've done. The channel keys must be
32 always re-generated when client leaves (or signoffs) the channel.
33 The silc_server_remove_from_channels funtion now handles
34 the channel key re-generation.
36 * Added `sender' argument to the silc_server_send_notify_on_channels
37 to not to send the client provided as argument. Affected file
38 silcd/packet_send.[ch].
40 Fri Mar 16 15:52:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
42 * Implemented OPER and SILCOPER commands into the server and
45 * Added silc_auth_verify and silc_auth_verify_data to verify
46 the authentication directly from the authentication payload.
47 It supports verifying both passphrase and public key based
48 authentication. Affected file lib/silccore/silcauth.[ch].
50 * Added `hash' field to the SilcIDListData structure. It is the
51 hash negotiated in the SKE protocol. Affected file is
54 * Slight redesigning of the SilcAuthPayload handling routines.
55 Do not send SilcPKCS but SilcPublicKey as argument.
57 * Implemented the public key authentication support to the
58 serverconfig. The public key is loaded fromthe provided path
59 and saved as authentication data to void * pointer. Thus,
60 changed the unsigned char *auth_data to void *auth_data;
62 * Fixed SHUTDOWN command to send the reply before the server
63 is shutdown. :) Affected file silcd/command.c.
65 * Fixed fatal bug in CONNECT command. The hostname was invalid
66 memory and server crashed. Affected file silcd/command.c.
68 * Fixed fatal bug in CLOSE command. The server_entry became
69 invalid but was referenced later in the command. Affected file
72 Thu Mar 15 12:46:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
74 * Fixed fatal bug in failure packet handling. Server ignored
75 the failure and thus crashed when it came.
79 Wed Mar 14 20:37:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
81 * Added new SILC_CF_LAG_STRICT command flag that strictly forces
82 that the command may be executed only once in (about) 2 seconds.
83 The old SILC_CF_LAG flag is same but allows command bursts up
84 to five before limiting.
86 Added the support for CF_LAG and CF_LAG_STRICT flags to the
87 server code. Various commands now includes the CF_LAG_STRICT
88 flag to disallow any kind of miss-use of the command.
90 * Fixed the silc_buffer_unformat to not to allocate any data
91 if the length of the data is zero. It used to allocate the
92 length + 1. Affected file lib/silcutil/silcbuffmt.c.
94 Wed Mar 14 16:10:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
96 * Changed the format of AdminConnection configuration section
97 in the server. Added username of the admin to the format.
98 Affected files silcd/serverconfig.[ch].
100 Added silc_server_config_find_admin into silcd/serverconfig.[ch]
101 to return admin configuration data by host, username and/or
104 Wed Mar 14 13:18:16 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
106 * Implemented WHOWAS command to the server. Added the functions:
108 silc_server_command_whowas_parse,
109 silc_server_command_whowas_send_reply,
110 silc_server_command_whowas_from_client and
111 silc_server_command_whowas_from_server
113 * Added <Client ID> argument to the WHOWAS command reply. Updated
114 the protocol specs accordingly.
116 * Implemented WHOWAS command and command_reply to the client
119 Implemented the WHOWAS printing on the user interface.
121 Tue Mar 13 22:17:34 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
123 * Added new argument to the WHOWAS command reply, the real name.
124 It is an optional argument. Updated the protocol specs.
126 * Added SilcIDCacheDestructor callback that is registered when
127 the SilcIDCache is allocated. The callback is called when
128 an cache entry in the ID Cache expires, or is purged from the
129 cache. Added into lib/silccore/idcache.[ch].
131 Added silc_idlist_client_destructor to the silcd/idlist.[ch]
132 to destruct the client entries when the cache entry expires.
133 Other ID Cache's in server and in the client library ignores
136 * If the ID Cache entry's `expire' field is zero then the entry
137 never expires. Added boolean `expire' argument to the
138 silc_idcache_add function in the lib/silccore/idcache.[ch].
139 If it is TRUE the default expiry value is used.
141 * Added silc_server_free_client_data_timeout that is registered
142 when client disconnects. By default for 5 minutes we preserve
143 the client entry for history - for WHOWAS command.
145 Tue Mar 13 13:26:18 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
147 * Added support to the server to enforce that commands are not
148 executed more than once in 2 seconds. If server receives
149 commands from client more frequently, timeout is registered
150 to process the commands. Affected file silcd/command.c.
151 Added new function silc_server_command_process_timeout.
153 * Changed NICK_NOTIFY handling in client library to check that
154 if the client's nickname was changed, so there is no need to
155 resolve anything from the server.
157 * Removed error printing from the WHOIS and IDENTIFY commands.
158 If error occurs then it is ignored silently in the client library.
159 The application, however, may map the received error to
160 human readable error string. The application currently maps
161 the NO_SUCH_NICKNAME error to string.
163 * Made the command status message public to the application. Moved
164 them from lib/silcclient/command_reply.c to
165 lib/silcclient/command_reply.h. The application can map the
166 received command status to the string with the
167 silc_client_command_status_message function.
169 * Added check to the server to check that client's ID is same
170 as the Source ID in the packet the client sent. They must
173 Tue Mar 13 12:49:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
175 * Added dist-bzip hook to the Makefile.am to make bzip2
176 compressed distributions.
178 Mon Mar 12 18:43:38 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
180 * Server now enforces the maximum length for the nickname and
181 the channel as protocol specification dictates. 128 bytes for
182 nickname and 256 bytes for channel name.
184 * Moved the WHOIS printing to the application. The client libary
185 does not print out the WHOIS information anymore, the application
186 must do it. Renamed silc_client_command_reply_whois_print to
187 the silc_client_command_reply_whois_save.
189 The client's idle time is also sent to the application now, and
190 the idle is shown on screen.
192 * Added silc_client_command_reply_identify_save to save the
193 received IDENTIFY entries.
195 * Do not check for channel private keys in message sending and
196 reception if the channel does not have the PRIVKEY mode set.
197 Affected file lib/silclient/client_channel.c.
199 Sun Mar 11 20:25:06 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
201 * Fixed a minor bug if WHOIS and IDENTIFY command parsing that
202 just surfaced after chaning the JOIN procedure.
204 Sun Mar 11 14:59:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
206 * Added silc_client_get_clients_by_list to get client entries
207 from Client ID list, that is returned for example by JOIN
208 and USERS command replies. The application should use this
209 function for example when JOIN command reply is received to
210 resolve the clients already on the channel (library does not
211 do that anymore as USERS command reply is not used in the JOIN
212 procedure anymore). Affected files lib/silcclient/silcapi.h and
213 lib/silcclient/idlist.c.
215 * JOIN command reply and USERS command reply returns now SilcBuffer
216 pointers instead of unsigned char pointers when returning
217 the client list and mode list.
219 * Added <Client ID> argument to the JOIN command reply, mainly
220 for the server to identify for which client the command was
221 originally sent. Updated protocol specs accordingly.
223 * Added SilcDlist private_key pointer to the SilcChannelEntry
224 in the client to support the channel private keys. Affected
225 file is lib/silcclient/idlist.h.
227 * Added SilcChannelPrivateKey argument to the function
228 silc_client_send_channel_message so that application can choose
229 to use specific private ke if it wants to. If it is not provided,
230 the normal channel key is used, unless private keys are set.
231 In this case the first (key that was added first) is used
232 as the encryption key.
234 * Implemented the support for channel private key handling.
235 Implemented the following functions:
237 silc_client_add_channel_private_key,
238 silc_client_del_channel_private_keys,
239 silc_client_del_channel_private_key,
240 silc_client_list_channel_private_keys and
241 silc_client_free_channel_private_keys
243 Affected file lib/silcclient/client_channel.c.
245 * Added the support for the private keys in the channel message
246 sending and encryption and in the message reception and
247 decryption. Affected funtions are
248 silc_client_send_channel_message and silc_client_channel_message.
250 Sat Mar 10 21:36:22 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
252 * Added SKE's key verify callback to the client library's
253 KE protocol context. Affected files lib/silcclient/protocol.[ch].
255 * Removed the statement that server (or router) must send USERS
256 command reply when joining to the channel so that the client
257 knows who are on the channel. Instead, the client list and
258 client's mode list is now sent in the JOIN command reply to the
259 client who joined channel. This is better solution.
261 * Added function silc_server_get_users_on_channel and function
262 silc_server_save_users_on_channel to the silcd/server.[ch].
264 * Removed function silc_server_command_send_users from the
267 * Do not show topic on the client library anymore. The topic is
268 sent in the command reply notify to the application and the
269 application must show the topic now.
271 Sat Mar 10 00:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
273 * Added client searching by nickname hash into the IDENTIFY and
274 WHOIS commands in the server as they were clearly missing from
275 them. Affected file is silcd/command.c.
277 * Fixed a bug in private message receiving in the client library.
278 The remote ID was freed and it wasn't supposed, now it is
281 Fri Mar 9 12:40:42 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
283 * Minor fix to the channel payload; allocate the data area, as it
284 needs to be of specific length.
286 * If the key agreement port is zero then the operating
287 system will define the bound port. Affected files are
288 lib/silcclient/silcapi.h and lib/silcclient/client_keyagr.c.
290 * Added new function silc_channel_payload_decrypt into the file
291 lib/silccore/silcchannel.[ch].
293 * Moved the channel message etc, check from silc_packet_decrypt
294 to applications. The library calls now a generic
295 SilcPacketCheckDecrypt callback which is to return TRUE or FALSE
296 when the packet is either normal or special. This was done to
297 allow more wide range of checking that was not allowed when
298 the code was in library. Now applications can do virtually any
299 checks to the packet and return to the library the decision how
300 the packet should be processed. Affected files are
301 lib/silccore/silcpacket.[ch].
303 Added silc_server_packet_decrypt_check to the server and
304 silc_client_packet_decrypt_check to the client library.
306 * Added silc_server_packet_send_srcdest into silcd/packet_send.[ch]
307 to send with specified source and destination information.
309 * Channel message delivery between routers was broken after the
310 channel key distribution was fixed earlier. The channel key
311 was used be to distributed to other routers as well which is not
312 allowed by the protocol. Now this is fixed and channel keys
313 really are cell specific and the channel message delivery between
314 routers comply with the protocol specification.
316 * Fixed various commands in server to check also the global list
317 for the channel entry and not just the local list. The affected
318 file silcd/command.c.
320 Thu Mar 8 21:39:03 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
322 * Added assert()s to buffer formatting and unformatting routines
323 to assert (if --enable-debug) when error occurs. Affected
324 file: lib/silcutil/silcbuffmt.c.
326 * Changed to auto-reconnect to check whether the remote host is
327 router and register the re-connect timeout if it is. It used
328 to check that whether we are normal server, but router must do
329 auto-reconnect with another router as well. Affected file
332 * Removed the [<key len>] option from CMODE command as the cipher
333 name decides the key length, nowadays. See the defined ciphers
334 from the protocol specification.
336 * Added [<hmac>] option to the CMODE command to define the HMAC
337 for the channel. Added SILC_CMODE_HMAC channel mode.
339 * Added [<hmac>] option for the JOIN command so that user can
340 select which HMAC is used to compute the MACs of the channel
343 * Added Hmac field to the Channel Message Payload. The integrity
344 of plaintext channel messages are now protected by computing
345 MAC of the message and attaching the MAC to the payload. The
346 MAC is encrypted. Now, it is clear that this causes some
347 overhead to the size of the packet but rationale for this is that
348 now the receiver can verify whether the channel message decrypted
349 correctly and also when private keys are set for the channel the
350 receiver can decrypt the packet with several keys and check from
351 the MAC which key decrypted the message correctly.
353 * Added silc_cipher_encrypt and silc_cipher_decrypt into the
354 lib/silccrypt/silccipher.[ch].
356 * Added silc_hash_len to return the digest length into the
357 lib/silcrypt/silchash.[ch].
359 * Rewrote parts of Silc Channel Payload interface in the
360 lib/silccore/silcchannel.[ch]. The encode function now also
361 encrypts the packet and parse function decrypts it.
363 Wed Mar 7 20:58:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
365 * Fixed a minor formatting bug in the SKE's key material processing.
366 It actually might have processed the keys wrong way resulting
369 * Redefined the mandatory HMAC algorithms and added new algorithms.
370 Added hmac-sha1-96 and hmac-md5-96 which are normal hmac-sha1
371 and hmac-md5 truncated to 96 bits. The mandatory is now
372 hmac-sha1-96. Rest are optional (including the one that used
373 to be mandatory). Rationale for this is that the truncated HMAC
374 length is sufficient from security point of view and can actually
375 make the attack against the HMAC harder. Also, the truncated
376 HMAC causes less overhead to the packets. See the RFC2104 for
379 * Added new [hmac] configuration section. The SKE used to use
380 the hash names (md5 and sha1) in the SKE proposal as HMCAS which
381 is of course wrong. The official names that must be proposed in
382 the SKE are the ones defined in the protocol specification
383 (hmac-sha1-96 for example). The user can configure any hmac
384 using any hash function configured in the [hash] section. At
385 least, the mandatory must be configured.
387 Rewrote the HMAC interface in lib/silccrypt/silchmac.[ch].
389 * Added HMAC list to the SKE proposal list. It has now both
390 hash algorithm list and HMAC list. This makes the protocol
391 incompatible with previous versions. The SKE now seems to work
392 the way it is supposed to work, for the first time actually.
394 * Defined plain Hash algorithms to the protocol specification.
397 Tue Mar 6 15:36:11 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
399 * Implemented support for key agreement packets into the server.
400 Added functions silc_server_key_agreement and
401 silc_server_send_key_agreement. Other than these functions,
402 server has nothing to do with this packet.
404 * Added support for private message key packets into the server.
405 Added functions silc_server_private_message_key and
406 silc_server_send_private_message_key.
410 * Changed the silc_[client|server]_protocol_ke_set_keys to be
411 called in the protocol's final callback instead in the END
412 protocol state. This makes a little more sense and in the same
413 time in client we can use the same protocol routines for normal
414 key exchange and to key agreement packet handling as well.
416 * Added to both client's and server's KE protocol context the
417 SilcSKEKeyMaterial pointer to save the key material. We will
418 bring the key material to the protocol's final callback by doing
419 this. The final callback must free the key material.
421 * Added SKE's packet_send callback into client's KE protocol
422 context so that the caller can choose what packet sending function
423 is used. This way we can use different packet sending when
424 doing normal SKE when doing key agreement packet handling (in
425 the key agreement packet handling we do not want to encrypt
428 * Implemented the responder side of the key agreement routines
429 in the client. The client can now bind to specified port and
430 accept incoming key negotiation. The key material is passed
431 to the application after the protocol is over.
433 * Implemented the processing of incoming Key Agreement packet
434 in the client. Added function silc_client_key_agreement to
437 * Implemented the intiator side of the key agreement routines
438 in the client. The client can now initiate key agreement with
439 another remote client. The key material is passed to the
440 application after the protocol is over.
442 * Created client_keyagr.c to include all the key agreement
445 * Added macro SILC_TASK_CALLBACK_GLOBAL which is equal to the
446 SILC_TASK_CALLBACK except that it is not static.
448 * Created client_notify.c and moved the Notify packet handling
449 from the client.[ch] into that file.
451 * Created client_prvmsg.c and moved all private message and
452 private message key routines from the client.[ch] into that file.
454 * Create client_channel.c and moved all channel message and
455 channel private key routines from the client.[ch] into that file.
457 * Changed silc_client_get_client_by_id_resolve to resolve with
458 WHOIS command instead of IDENTIFY command, in the file
459 lib/silclient/idlist.c.
461 Mon Mar 5 18:39:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
463 * Implemented the SKE's responder side to the Client library.
465 * When FAILURE is received to the protocol do not trust it
466 blindly. Register a timeout to wait whether the remote closes
467 the connection as it should do it, only after that process the
468 actual failure. This was changed to both client and server.
470 * Added client_internal.h to include some of the structures
471 there instead of client.h in lib/silcclient/.
473 * Added function silc_task_unregister_by_callback to unregister
474 timeouts by the callback function.
476 Sat Mar 3 19:15:43 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
478 * Some "Incomplete WHOIS info" errors has been appearing on the
479 log files. Took away the entry->userinfo check from WHOIS
480 reply sending. The entry->userinfo is now " " if client did not
481 provide one. I thought this was fixed earlier but something
482 is wrong still. Let's see if the error still appears.
484 Wed Feb 28 20:56:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
486 * Fixed a minor bug in the login when the channel key is
487 re-generated in the server. It used to generate the key in
488 wrong order and thus caused problems in the channel traffic.
490 * Fixed a minor bug in channel key distsribution after
491 KICK command. The key was not sent to the router even though
494 Tue Feb 27 20:24:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
496 * Added silc_ske_process_key_material_data as generic routine
497 to process any key material as the SILC protocol dictates. The
498 function is used by the actual SKE library but can be used by
499 applications as well. This relates to the private message keys
500 and the channel private keys since they must be processed the
501 same way the normal SILC session keys. The protocol dictates
502 this. Affected files: lib/silcske/silcske.[ch].
504 Added also silc_ske_free_key_material to free the
505 SilcSKEKeyMaterial structure.
507 * Defined silc_cipher_set_key function to set the key for
508 cipher without using the object's method function. The affected
509 files: lib/silccrypt/silccipher.[ch].
511 * Implemented silc silc_client_add_private_message_key,
512 silc_client_add_private_message_key_ske,
513 silc_client_del_private_message_key,
514 silc_client_list_private_message_keys and
515 silc_client_free_private_message_keys functions in the
518 Added functions silc_client_send_private_message_key to send
519 the Private Message Key payload and silc_client_private_message_key
520 to handle incoming Private Message Key payload.
522 * Added Cipher field to the Private Message Key payload to set
523 the cipher to be used. If ignored, the default cipher defined
524 in the SILC protocol (aes-256-cbc) is used.
526 Tue Feb 27 13:30:52 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
528 * Removed lib/silcclient/ops.h file.
530 Redefined parts of the SILC Client Library API. Created new
531 file silcapi.h that deprecates the ops.h file and defines the
532 published Client Library API. Defined also private message key
533 API and channel private key API into the file.
535 This is the file that the application must include from the
536 SILC Client Library. Other files need not be included by
537 the application anymore.
539 * Added new key_agreement client operation callback and also
540 defined the Key Agreement library API for the application.
542 Tue Feb 27 11:28:31 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
544 * Added new packet type: SILC_PACKET_KEY_AGREEMENT. This packet
545 is used by clients to request key negotiation between another
546 client in the SILC network. If the negotiation is started it
547 is performed using the SKE protocol. The result of the
548 negotiation, the secret key material, can be used for example
549 as private message key.
551 Implemented the Key Agreement payload into the files
552 lib/silccore/silauth.[ch].
554 Mon Feb 26 12:13:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
556 * Redefined ciphers for the SILC protocol. Added some new ciphers
557 and defined the key lengths for the algorithms. Changed the
558 code accordingly. The default key length is now 256 bits.
560 * Fixed SKE key distribution function silc_ske_process_key_material
561 when the key length is more than 128 bits. The default key
562 length in SILC is now 256 bits.
564 * Added new command status type: SILC_STATUS_ERR_UNKOWN_ALGORITHM
565 to indicate unsupported algorithm.
567 * Renamed rijndael.c to aes.c and all functions as well.
569 * Fixed a long standing channel key setting bug in client library.
570 Weird that it has never surfaced before.
572 * Fixed bug in channel deletion. If the entire channel is removed
573 then it must also delete the references of the channel entry
574 from the client's channel list as the client's channel entry and
575 the channel's client entry share same memory.
577 Sun Feb 25 20:47:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
579 * Implemented CONNECT and SHUTDOWN commands in the client.
581 * Implemented CLOSE command to the client.
583 * Added the function silc_idlist_find_server_by_name into the
584 files silcd/idlist.[ch].
586 Added the function silc_idlist_find_server_by_conn into the
587 files silcd/idlist.[ch].
589 Sat Feb 24 23:45:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
591 * DIE command was renamed to SHUTDOWN. Updated the both code
594 * Defined SILC_UMODE_NONE, SILC_UMODE_SERVER_OPERATOR and
595 SILC_UMODE_ROUTER_OPERATOR modes into lib/silccore/silcmode.h.
597 * Implemented CONNECT, CLOSE and SHUTDOWN commands to the server
600 * Added function silc_server_create_connection function to create
601 connection to remote router. My server implementation actually
602 does not allow router to connect to normal server (it expects
603 that normal server always initiates the connection to the router)
604 so the CONNECT command is only good for connecting to another
607 Sat Feb 24 16:03:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
609 * Added SILC_NOTIFY_TYPE_KICKED to indicate that the client
610 or some other client was kicked from the channel.
612 Implemented the handling of the notify type to both client
615 Implemented silc_server_send_notify_kicked to send the KICKED
616 notify. It is used to send it to the server's primary router.
618 * Implemented the KICK command into server and client.
620 * Added `query' argument to the silc_idlist_get_client function
621 to indicate whether to query the client from server or not if
624 * Added new command status type SILC_STATUS_ERR_NO_CHANNEL_FOPRIV
625 to indicate that the client is not channel founder.
629 Sat Feb 24 00:00:55 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
631 * Removed the rng context from SilcPacketContext structure and
632 changed that the packet routine uses the Global RNG API.
634 Fri Feb 23 11:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
636 * Added support for quit message that client can "leave" on the
637 channel when it quits the SILC. It is ditributed inside the
638 SILC_NOTIFY_TYPE_SIGNOFF notify type.
640 Added silc_server_free_client_data that will take the
641 signoff message as argument.
643 * Changed SKE routines to use the silc_pkcs_sign/verify routines.
645 Thu Feb 22 23:05:36 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
647 * Updated parts of the protocol specification to keep it up
650 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
652 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
653 payloads in one packet.
655 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
656 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
657 use now the new List flag.
659 * Also deprecated the following packet types: REPLACE_ID,
660 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
662 * Added list support for Notify packet in server.
664 * Added silc_server_send_notify_channel_change to send the
665 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
666 the silc_server_send_replace_id.
668 * Added silc_server_send_notify_nick_change to send the
669 NICK_CHANGE notify type. Deprecates the function
670 silc_server_send_replace_id.
672 * Added silc_server_send_notify_join to send the JOIN notify type.
673 Deprecates the function silc_server_send_new_channel_user.
675 * Added silc_server_send_notify_leave to send LEAVE notify type.
676 Deprecates the function silc_server_send_remove_channel_user.
678 * Added silc_server_send_notify_cmode and
679 silc_server_send_notify_cumode to send CMODE and CUMODE notify
680 types. Deprecates the silc_server_send_set_mode function.
682 * Added SERVER_SIGNOFF notify type to indicate that server has
683 quit. This means that all clients on the channel from that
684 server will drop. This can be also used when netsplit happens.
686 Deprecated REMOVE_ID packet type since it is not needed anymore
689 Added silc_server_send_notify_server_signoff to send the
690 SERVER_SIGNOFF notify type. Deprecates the function
691 silc_server_send_remove_id.
693 Added also silc_server_send_notify_signoff to send the
696 * Employed the PKCS #1. It is the mandatory way to do RSA in the
697 SILC protocol from this day on. Changed the protocol
698 specification as well.
700 * Added silc_server_send_notify_topic_set to send TOPIC_SET
701 notify type. It is used between routers to notify about
702 topic changes on a channel.
704 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
707 * Partly updated the protocol specification to comply with the
708 changes now made. It is still though a bit outdated.
710 * The JOIN notify type now takes one extra argument <Channel ID>.
711 The packet used to be destined to the channel but now the
712 JOIN type may be sent as list thus it is impossible to
713 destine it to any specific channel. By adding this argument
714 it is again possible.
716 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
718 * Added CREDITS file. The CHANGES and CREDITS file will appear
719 in the distribution as well.
721 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
723 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
724 types in the server's silcd/packet_receive.c.
726 * Implemented CMODE and CUMODE to work in router environment.
728 * Fixed minor encoding and decoding buglet from the
729 lib/silccore/silcmode.c.
731 * Fixed buffer overflow from lib/silcclient/command.c in USERS
734 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
736 * Changed all SilcConfigServer* and silc_config_server* to
737 SilcServerConfig* and silc_server_config*, respectively.
740 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
742 * Associated the ID (client or server ID) to the Authentication
743 Payload to avoid any possibility of forging. Updated the
744 protocol specification and the code accordingly.
746 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
748 * The RSA key length is now save to the RsaKey context in the
749 key generation process in lib/silccrypt/rsa.c. The key length
750 is now used to figure out the maximum size of the block allowed
751 to be encrypted/signed.
753 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
754 is equivalent to the silc_mp_mp2bin but does not allocate any
757 * Changed silc_mp_mp2bin API to take length argument. If it is
758 non-zero then the buffer is allocated that large. If zero, then
759 the size is approximated using silc_mp_sizeinbase, which however
762 * Created Global RNG API which is global RNG that application can
763 initialize. After initializing, any routine anywhere in the
764 code (including library) can use RNG without allocating a new
765 RNG object. This was done to allow this sort of use of the
766 RNG in code that has no chance to allocate RNG object. All
767 applications currently allocate this and many routines in the
768 library use this. Affected file lib/silccrypt/silcrng.[ch].
770 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
771 it to use the Global RNG API.
773 * Defined Authentication Payload into protocol specification that
774 is used during SILC session to authenticate entities. It is
775 used for example by client to authenticate itself to the server
776 to obtain server operator privileges.
778 Implemented this payload into the lib/silccore/silcauth.[ch].
779 Implemented also routines for public key based authentication
780 as the new protocol specification dictates.
782 Moved definitions of different authentication methods from
783 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
785 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
786 silc_pkcs_verify and silc_pkcs_sign_with_hash and
787 silc_pkcs_verify_with_hash functions into the file
788 lib/silccrypt/silcpkcs.[ch].
790 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
792 * The client entry's userinfo pointer must be always valid.
793 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
794 will fail since it requires the userinfo. Now, the userinfo
795 is allocated as "" if actual userinfo does not exist. Actually,
796 it must exist and it is totally Ok to drop client connections
797 that does not announce the userinfo. However, we will make
798 this workaround for now.
800 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
801 to return the remote port by socket.
803 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
805 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
806 SILC_SERVER_PENDING_EXEC and added an new macro
807 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
808 data or when error occurs while processing the pending command.
810 Added new argument `destructor' into silc_server_command_pending
811 and to the SilcServerCommandPending object. This destructor is
812 now called after calling the pending callback or if error occurs
813 immediately. If error occurs the actual pending callback won't
814 be called at all - only the destructor. The destructor may be
815 NULL if destructor is not needed.
817 All this applies for client library code as well. Similar
818 changes were made there as well for the pending commands.
820 In the client, the application must now allocate the
821 SilcClientCommandContext with the silc_client_command_alloc
824 * Added reference counter to the SilcServerCommandContext. Added
825 function silc_server_command_alloc and silc_server_command_dup
828 Same type of functions added to the client library for the same
831 * Removed the cmd_ident from IDListData away since it is now
832 global for all connections. It is the command identifier used
833 in command sending and with pending commands. The affected file
836 * Added reference counter to the SilcSocketConnection objecet to
837 indicate the usage count of the object. The object won't be
838 freed untill the reference counter hits zero. Currently only
839 server uses this, and client ignores it. The client must be
840 set to use this too later. The affected files are
841 lib/silccore/silcsockconn.[ch]. Added also the function
842 silc_socket_dup to increase the reference counter.
844 This was mainly added because it is possible that the socket
845 is removed underneath of pending command or other async
846 operation. Now it won't be free'd and proper DISCONNECTING
847 flags, etc. can be set to avoid sending data to connection that
848 is not valid anymore.
850 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
851 the connection. After that it sets SILC_SET_DISCONNECTED.
852 It is, however, possible that the socket data is not still freed.
853 The silc_server_packet_process now checks that data is not
854 read or written to connection that is DISCONNECTED. The socket
855 get's freed when the reference counter hits zero.
857 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
859 * Changed the client operation API: channel_message operation's
860 `sender' is now the client entry of the sender, not the nickname
861 and the `channel' is the channel entry, not the channel name.
863 In the private_message operation the `sender' is now also the
864 client entry of the sender not the nickname.
866 Affected file is lib/silcclient/ops.h and all applications
867 using the client operations.
869 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
871 * Moved the calling of ops->connect() from connect_to_server_final
872 into receive_new_id functin since that is the point when the
873 client is actually allowed to send traffic to network. The
874 affected file is lib/silcclient/client.c.
876 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
878 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
879 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
880 (if needs broadcasting) instead of broadcasting the packets one
881 by one which would make a burst in the network traffic.
883 * Added `broadcast' argument to the functions in silcd/server.[ch]
884 silc_server_create_new_channel[_with_id] to indicate whether
885 to send New Channel packet to primary router.
887 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
889 * Added new function into the silcd/server.[ch] files:
890 silc_server_create_new_channel_with_id to create new channel with
891 already existing Channel ID.
893 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
894 lib/silccore/silcpacket.h. This packet is used t send list of
895 Set Mode payloads inside one packet. Server uses this to set
896 the modes for the channels and clients on those channels, that it
897 announced to the router when it connected to it. The protocol
898 specification has been updated accordingly.
900 * The silc_server_new_channel did not handle the packet coming
901 from normal server as it normally does not send that. However,
902 when it announces its channels it does send it. Implemented
903 the support for that.
905 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
906 into the file lib/silccore/id.h.
908 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
910 * Fixed memory leaks in the functions silc_idlist_del_client,
911 silc_idlist_del_channel and silc_idlist_del_server in the file
912 silcd/idlist.c. All of those leaked like a sieve.
914 * Fixed some small memory leaks in the client's function
915 silc_client_notify_by_server.
917 * Added functions into silcd/server.c: silc_server_announce_clients,
918 silc_server_announce_channels and silc_server_announce_server.
919 These functions are used by normal and router server to announce
920 to its primary router about clients, channels and servers (when
921 router) that we own. This is done after we've connected to the
924 These functions effectively implements the following packet types:
925 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
926 and SILC_PACKET_NEW_ID_LIST.
928 * Added new functions into the silcd/packet_receive.[ch]:
929 silc_server_new_id_list, silc_server_new_channel_list and
930 silc_server_new_channel_user_list to handle the incoming
931 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
933 * Added support of changing Channel ID in the function
934 silc_server_replace_id. If the server that announces a channel
935 to the router already exists in the router (with same name but
936 with different Channel ID), router is responsible to send
937 Replace ID packet to the server and force the server to change
938 the Channel ID to the one router has.
940 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
941 client that the Channel ID has been changed by the router. The
942 normal server sends this to the client. Client must start using
943 the new Channel ID as the channel's ID.
945 Implemented handling of this new type into lib/silcclient/client.c
946 into the function silc_client_notify_by_server.
948 * Added new function silc_idlist_replace_channel_id into the files
949 silcd/idlist.[ch] to replace the Channel ID.
951 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
953 * Call silc_server_command_identify_check always when processing
954 the IDENTIFY command in silcd/command.c
956 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
958 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
959 send keepalive packets. The packet can be sent by clients,
962 Added function silc_socket_set_heartbeat into the file
963 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
964 If not set, the heartbeat is not performed. The actual
965 heartbeat is implemented in the low level socket connection
966 library. However, application is responsible of actually
969 Added silc_server_send_heartbeat to send the actual heartbeat
970 packet into silcd/packet_send.[ch]. Server now performs
971 keepalive with all connections.
973 * Added silc_task_get_first function into lib/silcutil/silctask.c
974 to return the timeout task with shortest timeout. There was a bug
975 in task unregistration that caused problems. TODO has been
976 updated to include that task system must be rewritten.
978 * The client library will now resolve the client information when
979 receiving JOIN notify from server for client that we know but
980 have incomplete information.
982 * Rewrote parts of silc_server_remove_from_channels and
983 silc_server_remove_from_one_channel as they did not remove the
984 channel in some circumstances even though they should've.
986 * Encryption problem encountered in server:
988 The LEAVE command used to send the Channel Key packet to the
989 router immediately after generating it. However, the code
990 had earlier sent Remove Channel user packet but not immediately,
991 ie. it was put to queue. The order of packets in the router
992 was that Channel Key packet was first and Remove Channel User
993 packet was second, even though they were encrypted in the
994 reverse order. For this reason, MAC check failed. Now, this
995 is fixed by not sending the Channel Key packet immediately but
996 putting it to queue. However, this is more fundamental problem:
997 packets that are in queue should actually not be encrypted
998 because packets that are sent immediately gets encrypted
999 actually with wrong IV (and thus MAC check fails). So, packets
1000 that are in queue should be encrypted when they are sent to
1001 the wire and not when they put to the queue.
1003 However, the problem is that the current system has not been
1004 designed to work that way. Instead, the packet is encrypted
1005 as soon as possible and left to the queue. The queue is then
1006 just purged into wire. There won't be any fixes for this
1007 any time soon. So, the current semantic for packet sending
1010 o If you send packet to remote host and do not force the send
1011 (the packet will be in queue) then all subsequent packets to the
1012 same remote host must also be put to the queue. Only after the
1013 queue has been purged is it safe again to force the packet
1016 o If you send all packets immediately then it safe to send
1017 any of subsequent packets through the queue, however, after
1018 the first packet is put to queue then any subsequent packets
1019 must also be put to the queue.
1021 Follow these rules and everything works fine.
1023 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1025 * Added new function silc_server_remove_clients_by_server to
1026 remove all client entries from ID list when the server connection
1027 is lost. In this case it is also important to invalidate all
1028 client entires as they hold the invalid server entry. This
1029 fixes fatal bug when server has lost connection and will reconnect
1032 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1034 * Made some sanity checks to silc_server_daemonise like to check
1035 whether the requested user and group actually exists.
1037 * Added sanity check to SKE's silc_ske_responder_finish to check
1038 that the public and private key actually is valid.
1040 * Invalidate the client's nickname when receiving Replace ID
1041 packet and the Client ID is being replaced. This means that the
1042 server will query the nickname if someone needs it (client)
1045 * Sort the ID Cache in client library when the ID Cache data
1046 has changed (needs sorting).
1048 * Do not allow for SILC client to create several connections to
1049 several servers. The client does not support windows right now
1050 and generating multiple connections causes weird behaviour.
1052 Irssi-silc client does support windows and can handle several
1053 connections without problems, see: www.irssi.org and SILC plugin.
1055 * Fixed some places where client was added to the IDList. The
1056 rule of thumb is following (in order to get everything right):
1057 If the client is directly connected local client then the
1058 `connection' argument must be set and `router' argument must be
1059 NULL to silc_idlist_add_client function. If the client is not
1060 directly connected client then the `router' argument must
1061 bet set and the `connection' argument must be NULL to the
1062 silc_idlist_add_client function.
1064 * The funtion silc_server_packet_send_local_channel actually did
1065 not check whether the client was locally connected or not. It
1066 does that now. Fixed a bug related to LEAVE command.
1068 * Fixed Remove Channel User payload parsing bug in server's
1069 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
1071 * The server's silc_server_save_channel_key now checks also the
1072 global ID list for the channel as it might not be in the local
1073 list. Fixed a bug related to LEAVE command.
1075 * Is this the end of the [<unknown>] buglet that has been lurking
1076 around for a long time? A little for loop fix in server's
1077 silc_server_command_whois_parse that is used by both IDENTIFY
1078 and WHOIS command. At least, this was a clear bug and a cause
1079 of one type of [<unknown>] buglet.
1081 * WHOIS and IDENTIFY commands call the function
1082 silc_server_command_[whois/identify]_check function even if
1083 we are not router server.
1085 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1087 * Added --with-gmp configuration option. If set the GMP
1088 is always compiled in the SILC source tree. If not set then
1089 it is checked whether the system has the GMP3 installed. If
1090 it has then the GMP won't be compiled (the system's headers
1091 and library is used), if it doesn't have it then the GMP is
1092 compiled in the SILC source tree.
1094 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1096 * Changed RSA private exponent generation to what PKCS #1
1097 suggests. We try to find the smallest possible d by doing
1098 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
1099 not security fix but optimization.
1101 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1103 * Added new config entry [Identity] to fork the server and run
1104 it as specific user and group. A patch from Bostik.
1106 * Imported Dotconf configuration library into lib/dotconf.
1107 This will be used to create the SILC configuration files later.
1108 It will appear in the distsribution after this commit.
1110 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1112 * A big code auditing weekend happening. Auditing code for
1113 obvious mistakes, bugs and errors. Also, removing any code
1116 Removed files for being obsolete:
1118 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
1119 inline in the file lib/silcutil/silcbuffer.h)
1121 o lib/silcutil/silcbufutil.c (the header has inline versions)
1123 Changed code to fix possible error conditions:
1125 o The buffer formatting routines now check that the destination
1126 buffer really has enough space to add the data. This applies for
1127 both buffer formatting and unformatting
1128 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
1129 unformatting was changed to accomodate following rules:
1130 XXX_*STRING_ALLOC will allocate space for the data into the pointer
1131 sent to the function while XXX_*STRING will not allocate or copy
1132 the data into the buffer. Instead it sets the pointer from the
1133 buffer into the pointer sent as argument (XXX_*STRING used to
1134 require that the pointer must be allocated already). This change
1135 makes this whole thing a bit more consistent and more optimized
1136 (note that the data returned in the unformatting with XXX_*STRING
1137 must not be freed now). The routines return now -1 on error.
1139 o Tried to find all code that use buffer_format and buffer_unformat
1140 and added return value checking to prevent formatting and
1141 especially unformatting errors and possible subsequent fatal
1144 o Changed ske->x and ske->KEY to mallocated pointers in
1145 lib/silcske/silcske.h. Fixed possible data and memory leak.
1147 o Added return value checking to all *_parse* functions. Fixed
1148 many memory leaks as well.
1150 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
1151 so that buffer overflows would not happen. All code now also
1152 checks the return value as it can fail.
1154 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1156 * Added reconnection support to server if the normal server looses
1157 its connection to the router (for example if router is rebooted).
1158 The server performs normal reconnection strategy implemented
1159 to the server. Affected file silcd/server.c.
1161 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1163 * Added new packet type SILC_PACKET_SET_MODE that is used to
1164 distribute the information about changed modes (for clients,
1165 channels and clients channel modes) to all routers in the
1166 network. Updated the protocol specification accordingly.
1168 Added functions into silcd/packet_send.c and
1169 silcd/packet_receive.c: silc_server_send_set_mode,
1170 silc_server_set_mode.
1172 Added new files silcmode.[ch] into lib/silccore that implements
1173 the encoding and decoding of Set Mode Payload. Added new type
1174 SilcSetModePayload. Moved the definitions of different modes
1175 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
1177 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1179 * Oops, a little mistake in server's connection authentication
1180 protocol. The protocol is not ended with FAILURE but with
1181 SUCCESS if the authentication is Ok. :) Affected file is
1184 * Implemented NICK_CHANGE notify handling in server in the file
1185 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
1186 the local clients on the channel. After the changing nickname
1187 in router environment snhould work and the [<unknown>] nickname
1188 should appear no more.
1190 The silc_server_replace_id function that receives the Replace ID
1191 payload now sends the NICK_CHANGE notify type also in the file
1192 silcd/packet_receive.c
1194 * Changed WHOIS and IDENTIFY command to support the maximum amount
1195 of arguments defined in protocol specs (3328 arguments). This
1196 fixed a bug that caused problems when there were more than three
1199 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1201 * Added extra parameter, command identifier, to the
1202 silc_client_send_command so that explicit command identifier
1205 Changed that ID list routines uses specific command identifier
1206 when sending WHOIS/IDENTIFY requests to the server so that they
1207 can be identified when the reply comes back.
1209 Affected files lib/silcclient/command.[ch],
1210 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
1212 * Added `sender' argument to silc_server_packet_send_to_channel
1213 to indicaet the sender who originally sent the packet to us
1214 that we are now re-sending. Ignored if NULL. Affected file
1215 silcd/packet_send.[ch].
1217 * Added some server statistics support in silcd/server_internal.h
1218 SilcServerStatistics structure and around the server code. Also
1219 send some nice statistics information when client is connecting
1222 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1224 * Fixed channel ID decoding in server's JOIN command reply in
1225 silcd/command_reply.c
1227 * Fixed braodcasting of replace ID payload to not to send it if
1228 we are standalone server in silcd/packet_receive.c.
1230 * Fixed all channel message sending routines to not to send
1231 packets to clients that has router set, since they are routed
1232 separately in the same function earlier. Affects file
1233 silcd/packet_send.c and all channel packet sending functions.
1235 * In USERS reply, res_argv[i] are not allocated, the table
1236 is allocated. Thus changed that free the table, not its
1239 * In server's whois_check and identify_check if the client is
1240 locally connected do not send any WHOIS commands - they are not
1243 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1245 * Fixed some minor bugs in client when sending WHOIS command. The
1246 arguments was in wrong order.
1248 * Removed statis function add_to_channel from server in
1249 silcd/command.c that was previously used with the joining but
1252 * Tested USERS command in router environment successfully with two
1253 routers, two servers and two clients.
1255 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1257 * Reorganized the USERS command and command reply in client library
1258 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
1259 When the command is given by user we register a pending command
1260 callback that will reprocess the command after the reply has been
1261 received from the server. When reprocessing the packet we then
1262 display the information. Thus, the USERS information is displayed
1263 now in the command callback instead of in the command reply
1264 callback. The processing of the command is same as previously
1265 when server has sent the command reply in the JOINing process.
1267 * Added to USERS command in silcd/command_reply.c to join the client,
1268 we didn't use to know about, to the channel after we've created
1269 a client entry for it. Also, for clienet we did know already still
1270 check whether it is on the channel or not and add it if not.
1272 * Removed silc_server_command_join_notify as the function and its
1275 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1277 * Changed the client's pending command handling to the same as the
1278 server's pending command handling. It is also now possible to
1279 execute command reply functions from other command reply
1280 function as the function callbacks for commands and command
1281 replies are one and same. The pending commands are not static
1282 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
1283 in client connection context. Thus, pending commands are server
1284 connection specific as it is convenient.
1286 Changed the function silc_client_command_pending and
1287 silc_client_command_pending_del and added new function
1288 silc_client_command_pending_check. Removed the
1289 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
1292 * Added cmd_ident, current command identifier, to the client
1293 connection context in lib/silcclient/client.h to keep track on
1294 command identifiers used in command sending. Client's command reply
1295 function handling now supports the mandatory command identifiers.
1297 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
1298 funtions in client to fully support pending command callbacks.
1300 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
1301 as one of the arguments to the application in the command reply
1304 * NOTE: The FORWARDED flag is depracated. It used to be depracated
1305 before first releasing SILC but came back. Now it is removed again
1306 and should come back nomore. The FORWARDED flag was used only
1307 by the JOINing procedure by forwarding the command packet to router.
1308 Now, the JOINing procedure has been changed to more generic (due
1309 to various router environment issues) and FORWARDED is not needed
1310 anymore for anything. The protocol specification is yet to be
1313 Now, removed silc_server_packet_forward from server and the flag
1314 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
1316 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1318 * Renamed NAMES command to USERS command. The NAMES was named that
1319 due to historical reasons. Now it is renamed. Also, rewrote
1320 parts of the USERS command. The nickname list is not sent anymore
1321 by the server. Only Client ID and mode lists are sent in the USERS
1322 command. Changed this also to the protocol specification.
1324 The client now resolves the names and stuff after it receives
1325 the USERS list from the server when joining to the channel.
1327 * WHOIS and IDENTIFY commands has been changed to support multiple
1328 Client ID's per command. One can now search for multiple users
1329 in the network by sending only one WHOIS or IDENTIFY command.
1330 Changed the code and the protocol specifications.
1332 * Removed silc_server_command_identify_parse and changed that IDENTIFY
1333 uses silc_server_command_whois_parse to parse the request. */
1335 * If normal server, do not parse the WHOIS and IDENTIFY requests
1336 before sending it to the router. Saves some time.
1338 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1340 * Fixed JOIN command on client library. Wrong number of arguments
1341 used to crash the client.
1343 * Added silc_server_channel_has_global function to check whether
1344 channel has global users or not.
1346 * Added silc_server_channel_has_local function to check whether channel
1347 has locally connected clients on the channel.
1349 * The silc_server_remove_from_one_channel now checks whether the
1350 channel has global users or not after given client was removed from
1351 the channel. It also checks whether the channel has local clients
1352 on the channel anymore. If it does not have then the channel entry
1353 is removed as it is not needed anymore.
1355 * The silc_server_notify now checks on JOIN notify whether the joining
1356 client is one of locally connected or global. If it is global then
1357 the channel has now global users on the channel and that is marked
1358 to the channel entry. Also, it now saves the global client to
1359 global list who is joining and JOINs it to the channel. This is
1360 for normal server, that is.
1362 Changed silc_server_send_notify_on_channel,
1363 silc_server_packet_relay_to_channel and
1364 silc_server_packet_send_to_channel check if we are normal server
1365 and client has router set (ie. global client) do not send the
1366 message to that client, as it is already routed to our router.
1368 * Implemented LEAVE notify type handling in silc_server_notify
1371 * Tested LEAVE command in router environment successfully. Tested
1372 with two routers, two servers and two clients.
1376 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
1378 * Implemented SIGNOFF notify type handling in silc_server_notify
1381 * silc_server_remove_id now removes the client entry from all channels
1382 it has joined and thusly sends SIGNOFF notify type.
1384 * Rewrote the NAMES list generation in server by removing two excess
1385 loops. The lists are created now inside one loop.
1387 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1389 * silc_server_remove_channel_user checks now also global list
1390 for channel and client.
1392 * silc_server_new_channel_user checks now both local and global
1393 list for channel and client. Fixed a bug in client id decoding.
1394 Used to decode wrong buffer.
1396 * silc_server_channel_message checks now both local and global
1397 list for channel entry.
1399 * Tested channel joining (hence JOIN) in router environment
1400 successfully. Tested with two routers, two servers and two
1403 * Tested channel message sending in router environment successfully.
1405 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1407 * Added silc_server_save_channel_key into server.[ch] to save the
1408 received channel key in Channel Key payload processing. It is
1409 also used in JOIN command reply handling.
1411 Equivalent function silc_client_save_channel_key added into
1412 client.[ch] into client library.
1414 * Changed JOIN command reply to send information whether the channel
1415 was created or not (is existing already) and the channel key
1416 payload. Changed protocol specs accordingly.
1418 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
1419 the request was sent by ID and not by nickname. Crashed on
1422 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1424 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
1425 now correctly save the received data.
1427 * silc_server_free_sock_user_data now notifies routers in the
1428 network about entities leaving the network.
1430 At the same time implemented functions silc_server_remove_id
1431 and silc_server_send_remove_id to receive and send REMOVE_ID
1432 packets. The packet is used to notify routers in the network
1433 about leaving entities. The ID removed will become invalid in
1436 * Added function silc_idlist_del_server into server. Removes and
1437 free's server entry from ID list.
1439 * silc_server_private_message function now checks, if we are router,
1440 that the destination ID really is valid ID, naturally.
1442 * In router when NEW_ID packet is received (for new client) the
1443 hash of the Client ID is saved in the ID Cache but the
1444 client->nickname is set to NULL, instead of putting the hash
1447 IDENTIFY command now also checks that client->nickname must be
1448 valid. If it is not if will request the data from the server who
1449 owns the client. Added new function
1450 silc_server_command_identify_check.
1452 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
1453 to set the command to already allocated Command Payload.
1455 * Tested private message sending in router environment with two
1456 routers, two servers and two clients. Fixed minor bugs and now
1459 * Fixed segfault from client's NAMES command. Used to crash if
1462 * Forwarded packets must not be routed even if it is not destined
1463 to the receiver. Changed server code comply with this.
1465 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1467 * Added `require_reverse_mapping' boolean value to ServerParams
1468 structure. If TRUE (not default) the server will require that
1469 the connecting host has fully qualified domain name.
1471 If the reverse mapping is not required and hostname could not be
1472 found the IP address is used as hostname.
1474 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1476 * Implemented version string checking to both client and server.
1477 The check is incomplete currently due to the abnormal version
1478 strings used in development version of SILC.
1480 * Changed all command functions in server to use the new
1483 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1485 * Changed char *data to unsigned char *data in ID Cache system to
1486 support binary data as ID Cache data. Changed code to support
1487 binary data in lib/silccore/idcache.c.
1489 * Renamed silc_server_packet_relay_command_reply to
1490 silc_server_command_reply as it is normal packet receiving
1491 function. Rewrote the function to accept command replys for
1492 servers and not only for clients.
1494 * Mark remote router always as registered server if we are connecting
1495 to it. Otherwise, commands sent by the router to us are ignored.
1497 * All ID List find routines now returns the ID Cache Entry pointer
1498 as well if requested.
1500 * WHOIS command works now in router environment, tested with two
1501 routers, two servers and two clients.
1503 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
1504 in router environment (as it is almost equivalent to WHOIS) but
1505 hasn't been tested thoroughly. Added new functions:
1507 silc_server_command_identify_parse
1508 silc_server_command_identify_send_reply
1509 silc_server_command_identify_from_client
1510 silc_server_command_identify_from_server
1512 * Disabled route cache adding because adding two different ID's with
1513 same IP replaces the old cache entry thus giving wrong route.
1514 The entry->router->connection is always the fastest route anyway
1515 so route cache may not be needed. Of course, new routes maybe
1516 established after receiving the ID when the entry->router->connection
1517 might not be anymore the most optimal.
1519 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1521 * Add route cache for received ID for fast routing.
1523 * Added silc_server_packet_route to route received packet on router
1524 that is not destined to us.
1526 * Renamed silc_server_get_route to silc_server_route_get.
1528 * Added id_string and id_string_len fields into SilcServer to
1529 include encoded ServerID for fast comparing without excess
1530 encoding of the ID's.
1532 * Cleaned up WHOIS command on server side. Added following static
1535 silc_server_command_whois_parse
1536 silc_server_command_whois_check
1537 silc_server_command_whois_send_reply
1538 silc_server_command_whois_from_client
1539 silc_server_command_whois_from_server
1541 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
1542 arguments in command replies. All command functions should be
1543 updated to use this macro.
1545 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1547 * Minor typo fixes on command reply handling on server.
1549 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1551 * Added silc_server_command_add_to_channel internal routine to add
1552 the client to the channel after router has created the channel and
1553 sent command reply to the server.
1555 * Added generic silc_server_send_command to send any command from
1558 * Use static buffer with ID rendering instead of duplicating data.
1560 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1562 * Fixed a channel user mode bug when joining to a channel server gave
1563 everybody channel founder rights, oops.
1565 * We mark ourselves as the router of the incoming server connection
1566 if we are router ourselves. This way we can check in some packet
1567 sending functions whether it is locally connected server. For
1568 incoming router connections we put NULL.
1570 * For router sending packets locally means now always sending the
1571 packet cell wide; to local clients and local servers. For normal
1572 server sending packet locally means sending it to only local
1575 * Fixed the JOIN command to really work in router environment. If the
1576 channel is created it is always created by the router. Router is
1577 also responsible of making the initial joining to the channel,
1578 sending JOIN notify to the sending server and distributing
1579 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
1580 does not exist server doesn't do anything else but forward the
1581 command to the router which performs everything.
1583 * Added silc_server_send_channel_key function to send the Channel Key
1586 * Added silc_server_create_channel_key to create new channel key. The
1587 channel key is now re-generated everytime someone joins or leaves
1588 a channel, as protocol dictates. Note: channel->key_len is the
1591 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1593 * Splitted server.[ch] finally. Created now packet_send.[ch] and
1594 packet_receive.[ch] to separate packet sending and receiving
1595 routines. The server.[ch] now includes everything else including
1596 actual packet processing (writing and reading data) and other
1599 Renamed silc_server_private_message_send_internal to
1600 silc_server_send_private_message. The routine is still though
1601 used only to relay private messages as server does not send
1602 private messages itself.
1604 Renamed silc_server_new_channel to silc_server_create_new_channel
1605 and added new function sicl_server_new_channel that handles the
1606 incoming New Channel packet. Added also new sending function
1607 silc_server_send_new_channel to send New Channel Payload.
1609 * Added new function silc_server_notify to process incoming notify
1610 packet to the server/router. Server may then relay the notify
1611 to clients if needed.
1613 * Added new function silc_server_new_channel_user to process incoming
1614 New Channel User packet. Router will redistribute the packet and
1615 send JOIN notify to its local clients and locally connected servers
1616 if needed. Normal server will send JOIN notify to its local client
1617 on same channel when received this packet. Added also corresponding
1618 sending function silc_server_send_new_channel_user to sent the
1621 * Added boolean route argument to send_notif_to_channel and
1622 packet_send_to_channel functions to attempt to route the packet
1623 if it is TRUE and send only locally if it is FALSE.
1625 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1627 * silc_server_replace_id now broadcasts the received replace ID
1628 packet if it is not broadcast packet already. The router must
1629 broadcast to inform other routers about changed ID.
1631 * Added backpointer to server's router into SilcServer context in
1632 silcd/server_internal.h.
1634 * Fixed silc_server_packet_broadcast to send correct broadcast
1637 * The channel key is now distributed to the local client as soon
1638 as it is received from the router (in router environment) so that
1639 no other packet may be sent for the channel until client has
1642 * silc_server_remove_channel_user now broadcasts the received
1643 Remove Channel User packet if it is not broadcast packet already.
1644 The router must broadcast to inform other routers about removed
1647 * Added users field into SilcPacketContext that is a reference count
1648 of the context. One can increase the reference count by calling
1649 silc_packet_context_dup which is now changed to just increase the
1650 reference count instead of duplicating the data. The reference
1651 count is decresed by calling silc_packet_context_free that will
1652 free the data after the reference count hits zero.
1654 For now on the packet context and everything allocated into it
1655 (including the raw packet from network) must be freed by calling
1656 the new silc_packet_context_free function. Added also new function
1657 silc_packet_context_alloc that must be used now to allocate the
1658 context. This also means that if a routine is asynchronous from
1659 silc_[client/server]_packet_parse_type the packet context must
1660 be duplicated by calling silc_packet_context_dup. Otherwise it
1661 gets free'd after silc_[client/server]_packet_parse_type returns.
1662 Also, one must remember that if packet is duplicated then its
1663 reference count must be decresed by calling the free function as
1664 many times as it was duplicated.
1666 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
1667 from both client and server.
1669 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1671 * Made joining to a channel working in router environment.
1673 * Cleaned up JOIN command on server side and create function
1674 silc_server_command_join_channel internal routine to make the
1677 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1679 * Changed silc_command_pending list to SilcDList. Also, added
1680 `ident' field to SilcServerCommandPending structure to identify
1681 the reply and to call correct callback.
1683 Added silc_server_command_pending_check function to replace the
1684 corresnponding macro. The silc_command_pending list is not
1687 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
1688 to set identifier to previously allocated Command Payload. It
1689 is used to set identifier for command when resending Command
1692 * Added silc_command_payload_encode_payload to encode Command
1693 Payload buffer from SilcCommandPayload structure.
1695 * Added silc_argument_payload_encode_payload to encode Argument
1696 payload buffer from SilcArgumentPayload structure.
1698 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1700 * Changed WHOIS command to support router connection on server side.
1701 The whois request is always sent to router unless the server is
1702 standalone server. After server has received the reply from the
1703 router will it send the reply to the client.
1705 * Added silc_server_packet_broadcast into silcd/server.[ch] to
1706 broadcast received broadcast packet. The function is used only
1707 by router. The broadcast packet is always sent to the router's
1710 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
1711 render given ID to printable string, for log files for example.
1713 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1715 * Made basic router to router connections working. At least they
1716 can now connect to each other but nothing really works the way
1717 they are supposed - yet.
1719 * Added new initiator token to RouterConnection configuration
1720 file in silcd/serverconfig.[ch]. It is used to tell whether we
1721 are the initiator to the remote router or whether we'll expect
1722 the other end to connect.
1724 * Moved registering of listener task to silc_server_init, hence
1725 the server starts listenning as soon as it is run, even if it
1726 does not have connections to other routers. Let's see how well
1729 * Changed default connection retry timeouts for more suitable in
1732 * Removed cipher and such arguments from silc_idlist_add_client
1733 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
1734 Added new function silc_idlist_add_data to add the keys and stuff
1737 * Added SilcIDListData structure and added it to SilcClientEntry
1738 and SilcServerEntry as their first field in the structure. This
1739 way we can explicitly cast the ID entries to the SilcIDListData
1740 structure and get common data for the entries. In past, we had
1741 to first check what type of connection it is and then cast it to
1742 correct ID entry type. Now, we can directly cast the opaque
1743 pointer to the SilcIDListData (no matter what ID entry it actually
1744 is) and get the data needed.
1746 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1748 * Wow, found a bug in scheduler. The scheduler uninitialized itself
1749 in some circumstances even if threre were timeout tasks, though not
1750 IO tasks, but tasks anyway. Now fixed.
1752 * Defined SilcServerConnection structure to hold connection specific
1753 stuff about directly connected servers and routers. The definition
1754 is currently in silcd/server_internal.h. I thought about having
1755 a bit more important role fro this struct but for now it is used
1756 only when connecting to other server (or router actually).
1758 * Added connecting retry support in server when connecting to
1759 router(s). The retry feature implement exponential backoff
1760 algorithm. Also, added SilcServerParams structure to hold default
1761 parameters for server. For now, it include these retry settings
1762 and are hard coded. After server is moded to be as Silc Server
1763 Library this structure will be more important.
1765 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1767 * Changed client librarys channel->clients table to SilcList and
1768 changed code accordingly.
1770 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1772 * Changed client's channel table to SilcList and changed code
1773 accordingly. Also changed SilcChannelClientEntry to include back-
1774 pointer to the channel so that client entry can use that structure
1775 as list as well and we have fast cross-reference to the channel.
1776 This change dramatically decreased the complexity of channel
1777 handling with client entry and vice versa (removed one extra
1778 loop when searching for channel entry from many functions).
1780 * Changed server->sim from table to SilcDList and changed code
1783 * NAMES command can now be used from user interface. It will show
1784 the user list on the channel, neatly.
1786 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
1787 Code now saves realname of the user if it becomes available.
1789 * Renamed configure.in to configure.in.pre and made ./prepare
1790 script to automatically add correct version string to
1791 configure.in which it creates from configure.in.pre.
1793 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1795 * NAMES command reply now shows users mode with the nickname when
1798 * Moved silc_client_ch[u]mode[_char] functions from
1799 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
1800 place sucks, they are utility functions and should be in some
1803 * Fixed some unsigned int's to unsigned short's. Patch by cras.
1805 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
1808 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1812 * Added TRQ (efficient deque and list library) into lib/trq. This is
1813 a very good list library that is currently used in the SILC. Defined
1814 SilcList API over the library because I didn't like the API very
1815 much. See lib/trq/silclist.h for the API and examples of how to
1816 use the API. Fixed various places in the code to use the new
1817 SilcList API. The SilcList is meant for lists that has a structure
1818 already defined as a list. It is not suitable to add just some
1819 context to the list (in TRQ, the context is the list actually).
1821 So, I defined SilcDList that can be used for the purpose where
1822 predefined list structure does not exit. This can be used as
1823 such list. Now some context just can be added to the SilcDList.
1824 Currently this list is not used in the SILC just yet, though there
1825 are a lot places where this can replace dynamically allocated
1826 tables and I will fix these places, later, to use SilcDList.
1827 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
1828 and use TRQ internally).
1830 Also fixed some annoying warning messages that the original TRQ
1831 code generated. Also minor changes to TRQ's Makefile.in.
1833 * Added support for querying by Client ID to both WHOIS and
1834 IDENTIFY commands into server, as required by the protocol.
1836 * Removed method function pointers from SilcBuffer structure. They
1837 weren't used to anything and just increased the context size for
1838 no good reason. This change also made silc_buffer_alloc and
1839 silc_buffer_free functions inline functions.
1841 * Disabled command flooding detection support until it's fixed so
1842 that it accepts commands in but does not execute them more than once
1845 * Added silc_net_localhost(), to return local hostname, into
1846 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
1847 that must be initialized before calling silc_client_init.
1849 * Added new function: silc_server_send_notify_on_channels to send
1850 notify messages to all channels client has joined. It is assured
1851 that the message is sent only once per client.
1853 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
1854 lib/silcutil/silcutil.[ch] as silc_format function. The new
1855 function is generic and is used by server as well, not only by
1856 the logging routines.
1858 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
1859 the provided version string was not acceptable. Added new function:
1860 silc_ske_check_version into lib/silcske/silcske.h. The function
1861 must be implemented by the application (client or server) and it
1862 does not reside in the SKE library. The function checks the version
1863 string remote end sent.
1865 * Added back pointers (to opaque context and to SilcSocketConnection)
1866 into SilcPacketContext structure into lib/silccore/silcpacket.h.
1868 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
1869 duplicate packet context structure.
1871 * Changed `notify' client operation to send same arguments as client
1872 receives from server except for ID's. ID's are mapped to correct
1873 ID entry and that is returned. Also, if channel entry is not sent
1874 by server but the notify is for channel the channel entry is sent
1875 to application (otherwise application doesn't know that it is for
1876 channel (library gets it from packet's Destination ID)).
1878 * Added silc_client_remove_from_channels into client library to
1879 remove a client from all channels it has joined to. Used when
1880 received SIGNOFF notify from server. Added also new function
1881 silc_client_replace_from_channels to replace old ID entry with
1882 new ID entry on all channels. Used when received NICK_CHANGE
1885 * Fixed ID Cache list handling in silc_idlist_get_client in
1886 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
1887 to get (or query) client by ID.
1889 * Updated TODO list.
1891 * Added connection authentication status message defined by the
1892 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
1893 support for these into the code in client and server side.
1895 * Added generic function silc_client_send_command to send any command
1896 with variable argument list. Application should use this function
1897 to send commands if the command functions provided by the library
1898 does not suite for the application's user interface needs.
1900 * Added new `failure' client operation. Application is notified about
1901 received failure packet if client is executing a protocol. In this
1902 case the protocol's execution has failed.
1904 * Added SKE's end notify to send the SKE_SUCCESS notify message that
1905 is required by the protocol.
1907 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
1908 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
1911 * Added status flag to SilcSKE object to indicate realtime status
1912 of the SKE protocol.
1914 * Application receives now exactly same command reply arguments as
1915 the library receives from server. However, if ID is received the
1916 corresponding ID entry is returned to the application (eg. Client
1917 ID is mapped to correct SilcClientEntry entry and that is returned).
1918 Changed command_reply client operation due to this change.
1920 * Changed all ID's in commands and in command replys as ID Payloads.
1921 Change affected both client and server side codes.
1923 All ID's sent in SILC network (with execption of ID's in SILC
1924 Packet header) are sent in ID Payload to support variable length
1927 * Server now notifies nick changes and notifies all clients on
1928 the channels about the new nickname (about the new Client ID,
1931 * Implemented CMODE command to change channel modes. Supports all
1932 channel modes defined by the protocol specs except ban and invite
1933 lists. (Also, private channel key mode is supported but support for
1934 setting private channel key in client is missing, thus, this mode
1935 has no effect on client side (except that server requires that the
1936 client uses private channel key and normal channel traffic does not
1939 Also, invite mode works per se, but INVITE command does not work
1940 yet correctly, so you can set channel as invite only channel but
1941 inviting clients to the channel does not work (it is yet to be
1942 thought what's the best way to do it).
1944 * Added new command SILC_COMMAND_CUMODE to change user mode on the
1945 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
1946 Implemented CUMODE command to change user's mode on the channel.
1947 Supports all modes defined by the protocol specs.
1949 * Added NAMES command reply to return users modes on the channel.
1951 * Removed unnecessary and slow ciphers from lib/silccrypt.
1953 * Set SO_KEEPALIVE option to connection sockets by default.
1955 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
1957 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
1958 redefined the Notify Payload into protocol specs.
1960 * Added silc_id_payload_parse_id to get ID directly from raw
1963 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1965 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
1966 accept searching by Client ID as well.
1968 * Added support for LEAVE and SIGNOFF notify types in client library.
1970 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
1971 to parse ID Payload from raw data.
1973 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1975 * Added flags parameter into silc_ske_assemble_security_properties
1976 function in lib/silcske/silcske.[ch].
1978 * Changed notify client operation to fit better for notify messages
1979 sent by server. The notify payload received from server is now
1980 passed to the application (after parsing it to SilcNotifyPayload).
1981 It is application's responsibility to retrieve the arguments
1982 from the payload and show the message the way it wants. The message
1983 sent by server is implementation specific.
1985 * Changed public keys to comply with the protocol specification.
1986 Old public keys are not supported anymore and are not compatible.
1988 * Removed nickname from Channel Payload as the latest draft removed
1989 it. The client must resolve the nickname from the NAMES command
1990 reply received when it joined the channel.
1992 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
1994 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1996 * Fixed some errors in protocol specification drafts.
1998 * Created lib/silccore/silcnotify.c to implement Notify Payload
1999 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
2000 generic payloads described by protocol specifications. The file
2001 includes implementations for ID Payload and Argument Payload.
2003 * Changed Command Payload implementation to use the new Argument
2004 Payload. Changed command_xxxx_payload to command_payload_xxxx
2005 to comply with SILC coding conventions.
2007 * Added suppport for Argument Payload handling in Notify Payload
2008 implementation as protocol requires it. Added the new support
2009 into server and client lib as well.
2011 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2013 * Added support for multiple nicknames on same channel. [n] is
2014 added locally to the nickname if there are more than one same
2015 nicknames on the channel.
2017 * Server now sends all nicknames that matched WHOIS request.
2018 Client also shows the list received from server.
2020 * Added TOPIC command to client side. User can now set and show
2021 current topic on channel.
2023 * Added MOTD command to client and server. Also, server sends the
2024 motd when client connects to the server.
2026 * Changed version strings to comply ISO 8601.
2028 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2030 * Fixed protocol error handling in client library. It should now
2031 cope even if the SKE fails for some reason.
2033 * Made new protocol specification drafts for submitting to IETF.
2035 * Implemented TOPIC command to server in silcd/command.c.
2037 * Added two new notify types into lib/silccore/silcnotify.h:
2038 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
2039 notify nickname change and topic setting/change on a channel.
2041 * API change of command_reply operation in client library. The
2042 application gets now the status type received from server as well.
2044 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2046 * Removed the function just added to lib/silcutil/silcschedule.[ch].
2048 * Cras fixed and optimized the packet handling even further and
2049 it should work now. Minor change to the prototype of function
2050 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
2052 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2054 * Added new function into lib/silcutil/silcschedule.[ch]:
2055 silc_schedule_with_fd to select() a specified fd. The function
2056 returns after timeout expires or data arrives or goes. The
2057 function is used by packet routines to wait that all data is
2058 received from network.
2060 * Fixed data reading from network in lib/silccore/silcpacket.c.
2061 The code now assures that all data is read from the fd and then
2062 continues packet processing. This was a bug fix since the code
2063 used to drop some data in some circumstances.
2065 * Added new function into lib/silcclient/client.[ch]:
2066 silc_client_start_key_exchange to start key exchange after
2067 connection has been established to server. The code internally
2068 now uses this funtion but its main purpose was to provide it
2069 for applications that perform their own connecting. After
2070 application has created a connection it merely calls this
2071 function to start the key exchange between client and server.
2072 The library takes care of everything else after that.
2074 Updated also lib/silcclient/README to explain the usage of
2077 * Do not send to application information that connection has
2078 been established. Application gets notified it by connect
2081 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2083 * Applied cras's patch to add silc_schedule_one function. The
2084 function runs scheduler once and returns.
2086 * Fixed the scheduler after cras messed it up. The timeout
2087 handling works now as it's supposed to work.
2089 * Added into lib/silccore/ silcnotify.h to include notify
2090 message types support. Changed silc_server_send_notify*
2091 functions, in server.[ch], to support those new notify types.
2092 Added the support for the notify types into client library,
2093 as well. Added new notify client operation into ops.h in
2096 * Changed silc_server_packet_send_to_channel to send normal
2097 packets instead of just channel message packets. The function
2098 is now used to send the notify packets to channels. It is not
2099 used to send channel message packets anymore, as server never
2102 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
2103 va_arg()s as it seems to require it nowadays. I guess, if SILC
2104 is compiled with older va_arg() the new code should work anyway.
2106 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2108 * Splitted core library. Core library (lib/silccore) includes
2109 now only SILC protocol specific core (and common) components.
2110 Created new utility library (lib/silcutil) that includes more
2111 generic purpose stuff. The stuff for util library was taken
2112 from the old core library. This was minor and easy split.
2114 * Created SILC Client Library (lib/silcclient) that includes
2115 implementation of the SILC client without user interface. This
2116 was major move from silc/ directory. The code has been changed
2117 so that it is transparent towards the user interface. The
2118 silc/ directory includes now the same user interface as before
2119 and it uses the new client library. Read lib/silcclient/README.
2120 Basicly, the client library performs everything else related
2121 to SILC except user interface handling. Also, configuration
2122 files are considered to be part of user interface and library
2123 does not handle them.
2125 This change also changed a lot of structures, function naming etc.
2126 Most important change was that SilcClientWindow object was
2127 renamed to SilcClientConnection in the client library. Created
2128 also new file lib/silcclient/ops.h. Also added new files
2129 silc/local_command.[ch] and silc/client_ops.[ch].
2131 All these changes were made to make it easier for user interface
2132 designers to create what ever user interface for the SILC client
2135 It is also expected that the server will be moved to lib
2136 directory as well and SILC Server Library will be created;
2137 sometimes in the future.
2139 * Removed Local commands from lib/silccore/silccommand.h as
2140 they are application specific and new client library does not
2141 handle any of those anymore.
2143 * Several functions moved to lib/silcutil/silcutilc.[ch] from
2144 old client implementation in silc/.
2146 * Added support for callback functions in SILC_LOG_* macros.
2147 Application can now set its own callbacks that will be called
2148 instead of using the default functions that will always print
2149 the debug messages to stderr (or stdout). Also, debugging can
2150 now be disabled by setting silc_debug to FALSE and re-enabled by
2151 setting it to TRUE. Note, that logging will still work even
2152 if debugging is disabled.
2154 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
2155 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
2156 silc_log_reset_debug_callbacks.
2158 * To enable debugging in silc client one must give now -d
2159 option on command line.
2161 * Changed silc_schedule_init to automatically allocate task queues
2162 if they are not allocated before calling it.
2164 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2166 * Added GMP 3.1 into math library.
2168 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2170 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
2171 a channel in SILC network. The packet is used by servers and
2172 routers to notify other routers that user has left a channel.
2173 This little feature was missing until now. Added the feature
2174 to protocol specification as well.
2176 Added functions: silc_server_send_remove_channel_user and
2177 silc_server_remove_channel_user into server.[ch].
2179 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
2180 lib/silccore/silcpacket.h. However, they are not implemented
2183 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2185 * Fixed joining to a channel and sending channel messages
2186 between server and router. The channel message sending should
2187 now work inside a cell.
2189 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2191 * Fixed the private message sending between server and router.
2192 The private message sending should now work inside a cell.
2194 * Added silc_server_replace_id into server.[ch] to replace
2195 existing ID in the SILC network.
2197 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
2198 and silc_idlist_replace_server_id into idlist.[ch] in server.
2200 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2202 * Fixed the server to server connections. Server can again now
2203 connect to router. Router to router connections probably does
2206 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2208 * Added dynamic protocol registering support. Now protocols can
2209 registered and unregistered on the fly. Patch by cras.
2211 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2213 * Added lib/contrib directory to hold routines that some platforms
2214 don't have but are needed by SILC.
2216 * Added getopt.c, getopt1.c and getopt.h from GNU C library
2217 into lin/contrib to provide getopt() and getopt_long() for
2218 those who don't have it.
2220 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2222 * Added AWAY command to client. When away message is set and
2223 client receives a private message packet the client automatically
2224 replies to the sender with the away message.
2226 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
2227 bug seemed to be the cause of recent problems when compiling
2230 * Added version detection support to SKE protocol specification
2231 and added the new changes to the SKE implementation as well.
2232 There were other minor changes in the SKE protocol as well.
2234 Many changes in lib/silcske/silcske.[ch] and in
2235 lib/silcske/payload.[ch].
2237 * Added ^U functionality, clear input line. Patch from cras.
2239 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2241 * Mainly small bugfixes on core library. Fixed some debugging
2242 logging and buffer overflow in silclog.c.
2244 * Updated config.sub and config.guess on the distribution tree.
2246 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2248 * Added command lagging support in server. Client may execute
2249 commands now only once in two seconds.
2251 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2253 * Optimized packet reception. MAC computation and checking is now
2254 also more optimized. A lot previously duplicated code is now
2255 used as generic by both client and server.
2257 * Fixed key pair generation in clientutil.c
2259 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2261 * Added into lib/silccore/silcbufutil.[ch] new function;
2262 silc_buffer_realloc.
2264 * Moved generic packet sending/encryption functions to
2265 lib/silccore/silcpacket.[ch] from client and server. Some
2266 rewriting of the functions.
2268 * Moved all generic packet reception/decryption functions to
2269 lib/silccore/silcpacket.[ch] from client and server. The
2270 packet processing is now much cleaner in both client and server.
2271 These were major changes in both client and server.
2273 * Created many common functions in server to do packet sending.
2274 Previously code were duplicated a lot, this has been removed
2277 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2279 * Rewrote major parts of the ID cache system. Don't know
2280 whether it is better now or not but at least the API is more
2283 * Major rewrite on ID cache stuff on client because of the ID
2284 cache API changes. Added idlist.c to client.
2286 * Also major rewrite on ID cache stuff on server as well.
2287 Major rewrite of idlist.[ch]. SilcXXXList's are now named
2288 SilcXXXEntry's. We won't keep anymore idlist specific pointers
2289 in hand, instead they are all put into the ID cache system now.
2290 All server_idlist_* routines uses ID cache now instead of
2291 traversing its own lists (those lists does not exist anymore).
2292 SilcIDList though still exists. Also, SilcXXXEntry's are
2295 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2297 * Finally made the SKE implementation compliant to the protocol
2298 specification. All mp integers are now binary encoded as
2299 opposed being HEX encoded.
2301 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
2304 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
2305 functions: silc_[encode/decode]_pem. Also added function
2306 silc_encode_pem_file to PEM encode with newlines ('\n') for
2309 * SILC public keys are now encoded either PEM or binary. Same
2310 option is for private keys as well. By default private keys
2311 are binary encoded and public keys PEM encoded. Silly HEX
2312 encoding were removed.
2314 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
2315 function to create fingerprints.
2317 * Fixed a bug in SHA1; does not change the original data anymore.
2319 * Partly implemented INFO command on client and server side.
2320 Fixed CLEAR command. Changes to SERVER command; show current
2321 server(s) when giving command without arguments. Added
2322 VERSION command to client.
2324 * Added check to server that unregistered connections cannot
2325 execute commands (unless it is specificly allowed).
2327 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2329 * Fixed screen refresh.
2331 * Fixed channel joining bug from client. On some circumstances
2332 client tried to join to a channel it had already joined.
2334 * Added public key verification process into client's protocol.c.
2335 The client now verifies the public key from user and saves
2336 it into ~./silc/serverkeys/ directory.
2338 Added into: clientutil.[ch]: silc_client_verify_server_key.
2340 * Changed SKE protocol's silc_ske_initiator_finish function
2341 to accept callback function that verifies the received public
2342 key. Removed old silc_ske_verify_public_key function.
2344 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2346 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
2347 silc_pkcs_private_key[_data]_set.
2349 * Made the password and public authentication more cleaner in
2350 server's protocol.c.
2352 * Removed historic and obsolete protocol `channel_auth' from
2353 both client and server.
2355 * Removed wrong way of sending command status messages from
2356 server to client in server's command.c. The old way violated
2357 protocol specification.
2359 Changes to silccore/silccommand.[ch]: removed
2360 silc_command_encode_status_payload -> not needed anymore,
2361 changed silc_command_encode_payload_va to accept extra
2362 argument on variable argument list. The argument type must
2363 now be provided to the function. Also, added new function:
2364 silc_command_encode_reply_payload_va which is same as
2365 normal command_encode_payload_va except command status type
2366 is provided as extra argument.
2368 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2370 * Added ~./silc directory handling. The directory includes the
2371 public and private keys for the client.
2373 Added silc_client_check_silc_dir, silc_client_create_identifier
2374 and silc_client_load_keys.
2376 * Implemented SILC protocol compliant public key. Added public
2377 and private key saving to and loading from files.
2379 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
2380 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
2381 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
2382 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
2383 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
2385 Implemented: silc_pkcs_save_[public/private]_key[_data] and
2386 silc_pkcs_load_[public/private]_key.
2388 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2390 * Added silc_server_get_route (route.[ch]) to get connection
2391 data for the fastest route for given ID.
2393 * Implemented INVITE command on client and server. The command
2394 were re-defined in the SILC Protocol Specification and the
2395 implementation now complies with the specification.
2397 * Implemented PING command on client and server.
2399 * Implemented NAMES command on client and server. The server side
2400 supports currently only normal server not router server yet.
2401 Some changes to NAMES definition in SILC protocol specification.
2403 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2405 * Implemented LEAVE command on client and server.
2407 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
2408 again. This change was made to the protocol as well. Server
2409 should not violate the protocol specification anymore.
2411 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2413 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
2414 was tested. SOCKS4 was not but should work anyway.
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