-TODO for 1.1
-============
+TODO for 1.2 And Beyond
+=======================
NOTE: Any item that doesn't have (***DONE) in it, isn't done yet. The
(***TESTING NEEDED) means that the item has been done but not yet properly
tested.
+NOTE: A TODO entry does not mean that it is ever going to be done. Some
+of the entries may be just ideas, good, bad or ugly. If you want to work
+on some of the TODO entries simply let us know about it by dropping a note
+to silc-devel mailing list or appear on 'silc' channel on SILCNet.
-apps/silcd, The SILC Server ****PARTLY DONE****
-===========================
- o Port all code to use SILC Toolkit 1.1 APIs.
+General
+=======
- o Fix/test GETKEY.
+ o Create apps/tutorial containing various Toolkit API tutorials.
- o Fix/test MOTD.
+ o The Toolkit split. The Toolkit is to be splitted in parts. How many
+ parts and what the parts are isn't decided yet. Each part is a separate
+ software package. Current thinking is of the following:
- o Remove protocol.[ch]. (***DONE)
+ SILC Toolkit SILC protocol, client and server library
+ SILC Runtime Toolkit runtime library
+ SILC Crypto Toolkit crypto, asn1, math, skr, pgp, etc.
- o Rewrite connecting accepting. (***TESTING NEEDED)
+ The rationale for this is of course that other than SILC projects
+ might like to use the various libraries SILC Toolkit provides, but
+ naturally they don't want the bloat of SILC protocol related stuff.
- o Rewrite async connecting. (***TESTING NEEDED)
+ The Runtime library in SILC Toolkit is a general purpose runtime library,
+ like Glib and APR are. The runtime library is to be developed further
+ to provide alternative to Glib and APR.
- o Connecting from SILC router to SILC server.
+ The Crypto library in SILC Toolkit is a general purpose crypto library
+ providing pretty nice APIs compared to many other crypto libraries,
+ especially OpenSSL. The Crypto library is to be developed further
+ to include support for OpenPGP, X.509 and SSH2.
- o Rewrite rehash, HUP.
- o Heartbeat-keepalive.
+lib/silccore
+============
- o Test backup router resuming protocol.
+ o SILC_PACKET_FLAG_ACK support. Implement ACK packet and packet payload
+ to silcpacket.c.
- o Check all packet receive routines that they call silc_packet_free.
+ o All payload encoding routines should take SilcStack as argument.
- o Add Web statistics module using lib/silchttp. Give out server
- statistics. (***DONE)
+ o Remove SilcCommandCb from silccommand.h.
+ o All payload test routines into lib/silccore/tests/.
-SILC Client ****PARTLY DONE****
-===========
- o Porting to new Toolkit API and new Client Library API (***TESTING NEEDED)
+lib/silcclient, The Client Library
+==================================
- o Improve help files, especially /cmode, /cumode and /key.
+ o UDP SILC connection support to SILC server
+ o Giving WHOIS for nick that doesn't exist should remove any same
+ named entries from the client cache.
-lib/silcclient, The Client Library ***PARTLY DONE****
-==================================
+ o peer-to-peer private messages
- o silcclient.h clean up and API rewrites. (***DONE)
+ o Private message key request notification to application. See XXX in
+ client_prvmsg.c.
- o silcclient_entry.h finishing, all entry relates APIs to this header.
- (***DONE)
+ o in JOIN notify handle resolving that timedout. Currently the user is
+ never joined the channel if this happens. What to do if message is
+ received from user that hasn't been resolved/joined?
+
+ o Add the SilcStream (socket stream) from the SilcPacketStream and
+ SilcSocket from the socket stream to SilcClientConnection for easier
+ access to them for programmers. Currently these have to be digged up
+ from the packet stream.
+
+ o Connection option that attemps to connect to remot host with various
+ different mechanisms: UDP 706, TCP 706, TCP 80, TCP 443, UDP 7706 and
+ TCP 7706. This is the so called hole punching mechanism.
+
+ o Message ACKing support.
+
+ o in /cmode and /cumode with +r, maybe the public key and private key
+ could be just some "string", which would then match to "string.pub" and
+ "string.prv".
+
+ o If the SILC Events (see below) are implemented, perhaps client library
+ should provide events so that application developer has a choice of
+ developing the SILC app with callbacks or with events.
+
+ o Ability to recover from rekey errors, at least try to.
+
+
+Runtime library, lib/silcutil/
+==============================
+
+ o Fix universal time decoding (doesn't accept all formats) in silctime.c.
+
+ o Add functions to manipulate environment variables. (***DONE)
- o SilcChannelEntry, SilcServerEntry, SilcChannelUser, allocating,
- freeing, finding, etc. rewrite. Also making them reference counted for
- multi threads use. (***DONE)
+ o Add functions to loading shared/dynamic object symbols (replaces the
+ SIM library (lib/silcsim) and introduces generic library). Add this
+ to lib/silcutil/silcdll.[ch]. (***TESTING NEEDED WIN32, TODO Symbian)
- o Rewrite silc_client_get_clients_by_channel.
+ o Add directory opening/traversing functions
- o Rewrite client side WHOIS command (for whois -details). (***DONE)
+ o silc_getopt routines
- o Finish all the missing SILC packet processings, rewrites. (***DONE)
+ o Add silc_stream_get_root and add get_root stream operation. It
+ returns the root of the stream or NULL if stream doesn't have root.
- o The client_notify.c rewrite. (***DONE)
+ o Change some stream routines (like socket stream API) to accept ANY
+ stream and use silc_stream_get_root to get the socket stream from the
+ given stream. This will make various stream APIs more easier to use
+ when user doesn't have to dig up the correct stream.
- o Resuming to client_register.c (remove client_resume.c) (***DONE)
+ o The SILC Event signals. Asynchronous events that can be created,
+ connected to and signalled. Either own event routines or glued into
+ SilcSchedule:
- o Rekey rewrite. (***DONE)
+ SilcTask silc_schedule_task_add_event(SilcSchedule schedule,
+ const char *event, ...);
+ SilcBool silc_schedule_event_connect(SilcSchedule schedule,
+ const char *event,
+ SilcTaskCallback event_callback,
+ void *context);
+ SilcBool silc_schedule_event_signal(SilcSchedule schedule,
+ const char *event, ...);
- o Remove protocol.[ch]. (***DONE)
+ Example:
+ silc_schedule_task_add_event(schedule, "connected",
+ SILC_PARAM_UI32_INT,
+ SILC_PARAM_BUFFER,
+ SILC_PARAM_END);
+ silc_schedule_event_connect(schedule, "connected", connected_cb, ctx);
+ silc_schedule_event_signal(schedule, "connected", integer, buf,
+ SILC_PARAM_END);
+ SILC_TASK_CALLBACK(connected_cb)
+ {
+ FooCtx ctx = context;
+ va_list args;
+ SilcUInt32 integer;
+ SilcBuffer buf;
- o File transfer rewrite. (***DONE)
+ va_start(args, context);
+ integer = va_arg(args, SilcUInt32);
+ buf = va_arg(args, SilcBuffer);
+ va_end(args);
+ ...
+ }
- o File transfer API documentation. (***DONE)
+ Problems: Events would be SilcSchedule specific, and would not work on
+ multi-thread/multi-scheduler system. The events should be copyable
+ between schedulers. Another problem is the signal delivery. Do we
+ deliver them synchronously possibly from any thread to any other thread
+ or do we deliver them through the target schedulers. If we use the
+ schedulers then signalling would be asynchronous (data must be
+ duplicated and later freed) which is not very nice.
- o Connection auth request. (***DONE)
+ o If the event signals are added, the SILC_PARAM_* stuff needs to be
+ moved from silcbuffmt.h to silctypes.h or something similar.
- o Password auth test, public key auth test. (***TESTING NEEDED)
+ o In case the SILC Events are done we shall create a new concept of
+ parent and child SilcSchedule's. When new SilcSchedule is created a
+ parent can be associated to it. This association could be done either
+ directly by the parent or by any other children. This way the signals
+ would in effect be global and would reach all children schedulers.
- o Starting key exchange directly, rewrite. (***DONE)
+ This relationship would be associative only. The schedulers are still
+ independent and run independently from each other. All schedulers
+ would be linked and could be accessed from any of the schedulers.
+ It should be possible to retrieve the parent and enumerate all children
+ from any of the schedulers.
- o Channel messages, channel private keys, channel entires, channel
- search, etc. rewrite. (***TESTING NEEDED)
+ SilcSchedule silc_schedule_init(int max_tasks, void *app_context,
+ SilcSchedule parent);
+ SilcSchedule silc_schedule_get_parent(SilcSchedule schedule);
- o For many APIs leave the hash context allocations to the caller instead
- of using client->sha1hash and client->md5hash, or some kind of thread
- safe (no locking) concept. (***DONE)
+ o Additional scheduler changes: optimize silc_schedule_wakeup. Wakeup
+ only if the scheduler is actually waiting something. If it is
+ delivering tasks wakeup is not needed.
- o Key agreement rewrite. (***TESTING NEEDED)
+ o Structured log messages to Log API. Allows machine readable log
+ messages. Would allow sending of any kind of data in a log message.
- o Connecting to remote client (***DONE)
+ o Base64 to an own API (***DONE)
- o Private message waiting API (in threads) (***TESING NEEDED)
+ o Timer API (***DONE)
- o client_attrs.c, attributes rewrite. (***TESTING NEEDED)
+ o Add builtin SOCKS and HTTP Proxy support, well the SOCKS at least.
+ SILC currently supports SOCKS4 and SOCKS5 but it needs to be compiled
+ in separately.
+
+ o silc_stringprep to non-allocating version.
+
+ o silc_hash_table_replace -> silc_hash_table_set. Retain support for
+ silc_hash_table_replace as macro. (***DONE)
+
+ o SilcStack aware SilcHashTable. (***DONE)
+
+ o SilcStack aware SilcDList. (***DONE)
+
+ o Thread pool API. Add this to lib/silcutil/silcthread.[ch]. (***DONE)
+
+ o Fast mutex implementation. Fast rwlock implementation. Mutex and
+ rwlock implementation using atomic operations.
+
+ o Compression routines are missing. The protocol supports packet
+ compression thus it must be implemented. SILC Zip API must be
+ defined.
+
+ o Add new functions to SilcStack API in lib/silcutil/silcstack.[ch]. Add
+ silc_stack_[set|get]_alignment. It defines the default alignment used
+ when allocating memory from stack. It can be used to specify special
+ alignments too when needed (such as for hardware devices like crypto
+ accelerators). Move also the low level silc_stack_malloc and
+ silc_stack_realloc from silcstack_i.h to silcstack.h. Remove the
+ _ua unaligned memory allocation routines. Remove unaligned memory
+ allocation possibility. (***DONE)
+
+ o silc_stack_alloc shouldn't require multiple by 8 size argument, it
+ should figure it out itself.
+
+ o silc_malloc et. al. to respect --with-alignment.
+
+ o Add '%@' format to silc_snprintf functions. It marks for external
+ rendering function of following type:
+
+ /* Snprintf rendering function. The `data' is rendered into a string
+ and allocated string is returned. If NULL is returned the
+ rendering is skipped and ignored. If the returned string does
+ not fit to the destination buffer it may be truncated. */
+ typedef char *(*SilcSnprintfRender)(void *data);
+
+ It can work like following:
+
+ char *id_renderer(void *data)
+ {
+ char tmp[32];
+ id_to_str(tmp, sizeof(tmp), (SilcID *)data);
+ return strdup(tmp);
+ }
- o No SilcBuffer lists back to application in command_reply operations.
- Convert them all to real lists and/or structures for easier use.
+ silc_snprintf(buf, sizeof(buf), "Client ID %@", id_renderer, client_id);
(***DONE)
- o Nickname formatting rewrite. (***TESTING NEEDED)
+ o Change silc_gettimeofday on Unix to use clock_gettime with REALTIME
+ clock if it is available, otherwise use gettimeofday(). (***DONE)
- o UDP connections. (***TESTING NEEDED)
+ (o SilcIpAddr abstraction. Ipv4 and Ipv6 support to the abstaction.)
+ maybe
+ (o Generic SilcStatus or SilcResult that includes all possible status and
+ error conditions, including those of SILC protocol. Though, the SILC
+ protocol related status (currently in silcstatus.h) cannot be in
+ runtime library) maybe
-lib/silcsftp ****DONE****
-============
+ (o SILC specific socket creation/closing routines to silcnet.h, wrappers
+ to all send(), recv(), sendto() etc. Bad thing is that we'd have to
+ define all socket options, sockaddrs, etc.) maybe
- o Porting to use the new util library. (***DONE)
+ (o mmap) maybe
-lib/silccore/silcpacket.[ch] ****PARTLY DONE****
-============================
+lib/silcutil/symbian/
+=====================
- o SilcPacketEngine. (***DONE)
+ o Something needs to be thought to the logging globals as well,
+ like silc_debug etc. They won't work on EPOC. Perhaps logging
+ and debugging is to be disabled on EPOC. The logging currently works
+ by it cannot be controlled, same with debugging.
- o New SILC Packet API. (***DONE)
- o Implement silc_packet_engine_stop and silc_packet_stream_destroy. (***DONE)
+SFTP Library, lib/silcsftp/
+===========================
- o IV Included flag support, UDP transport support (***TESTING NEEDED)
+ o Read prefetch (read-ahead, reading ahead of time). Maybe if this can
+ be done easily.
-lib/silccore/silcid.[ch] ****DONE****
-========================
+SKR Library, lib/silcskr/
+=========================
- o Add silc_id_str2id to accept the destination buffer as argument
- and thus not require any memory allocation. Same will happen
- with silc_id_payload_* functions. (***DONE)
+ o Add fingerprint as search constraint.
- o silc_id_str2id, silc_id2str to non-allocating routines. (***DONE)
+ o Add OpenPGP support. Adding, removing, fetching PGP keys. (Keyring
+ support?)
+ o Add support for importing public keys from a directory and/or from a
+ file. Add support for exporting the repository (different formats for
+ different key types?).
-lib/silcskr ****DONE****
-===========
+ o Change the entire silc_skr_find API. Remove SilcSKRFind and just simply
+ add the find constraints as variable argument list to silc_skr_find, eg:
- o Removing key from the repository is not possible currently. It should
- be. (***DONE)
+ silc_skr_find(skr, schedule, callback, context,
+ SILC_SKR_FIND_PUBLIC_KEY, public_key,
+ SILC_SKR_FIND_COUNTRY, "FI",
+ SILC_SKR_FIND_USAGE, SILC_SKR_USAGE_AUTH,
+ SILC_SKR_FIND_END);
+ NULL argument would be ignored and skipped.
-lib/silcske/silcske.[ch] ***PARTLY DONE****
-========================
+ o Add OR logical rule in addition of the current default AND, eg:
+
+ // Found key(s) MUST have this public key AND this country.
+ silc_skr_find(skr, schedule, callback, context,
+ SILC_SKR_FIND_RULE_AND,
+ SILC_SKR_FIND_PUBLIC_KEY, public_key,
+ SILC_SKR_FIND_COUNTRY, "FI",
+ SILC_SKR_FIND_END);
+
+ // Found key(s) MUST have this public key OR this key context
+ silc_skr_find(skr, schedule, callback, context,
+ SILC_SKR_FIND_RULE_OR,
+ SILC_SKR_FIND_PUBLIC_KEY, public_key,
+ SILC_SKR_FIND_CONTEXT, key_context,
+ SILC_SKR_FIND_END);
+
+ o SilcStack to SKR API.
+
+
+Crypto Library, lib/silccrypt/
+==============================
+
+ o Add silc_crypto_init and silc_crypto_uninit. The _init should take
+ SilcStack that will act as global memory pool for all of crypto
+ library. It should not be necessary anymore to separately register
+ default ciphers, HMACs, etc, the _init would do that. However, if
+ user after _init calls silc_pkcs_register, for example, it would take
+ preference over the default once, ie. user can always dictate the
+ order of algorithms. (***DONE)
+
+ o Add fingerprint to SilcSILCPublicKey and retrieval to silcpk.h, and
+ possibly to silcpkcs.h.
- o Responder rekey (***TESTING NEEDED)
+ /* Return fingerprint of the `public_key'. Returns also the algorithm
+ that has been used to make the fingerprint. */
+ const unsigned char *
+ silc_pkcs_get_fingerprint(SilcPublicKey public_key,
+ const char **hash_algorithm,
+ SilcUInt32 *fingerprint_len);
- o IV Included flag support in SKE (***DONE)
+ o Change SILC PKCS API to asynchronous, so that accelerators can be used.
+ All PKCS routines should now take callbacks as argument and they should
+ be delivered to SilcPKCSObject and SilcPKCSAlgorithm too. (***DONE)
- o UDP transport changes; retransmission support by using exponential
- backoff algorithm. (***DONE)
+ o Change PKCS Algorithm API to take SilcPKCSAlgorithm as argument to
+ encrypt, decrypt, sign and verify functions. We may need to for exmaple
+ check the alg->hash, supported hash functions. Maybe deliver it also
+ to all other functions in SilcPKCSAlgorithm to be consistent. (***DONE)
- o SilcConnAuth header file documentation. (***DONE)
+ o Add DSA support to SILC public key.
+ o Add DSS support. (***DONE)
-lib/silccrypt ****PARTLY DONE****
-=============
+ o Implement the defined SilcDH API. The definition is in
+ lib/silccrypt/silcdh.h. Make sure it is asynchronous so that it can
+ be accelerated. Also take into account that it could use elliptic
+ curves.
- o Implement PKCS #1 sign/verify with hash OID. (***TESTING NEEDED)
+ o Add ECDSA support.
- o Implement SILC Public Key Version 2 handling in sign/verify. Implement
- Version (V) identifier (***DONE)
+ o Add ECDH support.
- o SILC PKCS (silcpkcs.h) reorganizing when other PK supports added.
- Move the SILC Public Key routines away from the crypto library into
- the core library (silccore). silc_pkcs_public/private_key_* routines
- to silc_public/private_key_* routines. The silc_public_key_* routines
- should also automatically handle SILC Public Keys, and other keys
- and certificates as well. Add fe. silcpk.h into silccore. It should
- also include the Public Key Payload encoding and decoding routines.
+ o AES CBC is missing proper alignment code (see silc_1_1_branch).
+
+ o All cipher, hash, hmac etc. allocation routines should take their name
+ in as const char * not const unsigned char *. (***DONE)
+
+
+SILC Accelerator Library
+========================
+
+ o SILC Accelerator API. Provides generic way to use different kind of
+ accelerators. Basically implements SILC PKCS API so that SilcPublicKey
+ and SilcPrivateKey can be used but they call the accelerators.
+ (***DONE)
+
+ o Implement software accelerator. It is a thread pool system where the
+ public key and private key operations are executed in threads.
(***DONE)
- o Assembler AES (***DONE)
+ o Add init options to SilcAcceleratorObject as a SilcAcceleratorOption
+ structure. Each accelerator defines the options that they support and
+ can be retrieved from the SilcAccelerator with silc_acc_get_options.
+ The format must also be machine parseable. The structure can be of the
+ following format:
+
+ typedef struct SilcAcceleratorOptionStruct {
+ const char *option; /* Option name */
+ const char *display_name; /* Option displayable name */
+ SilcParamType type; /* Option data format */
+ } *SilcAcceleratorOption;
+ For software accelerator it could be for example:
-lib/silcutil ****PARTLY DONE****
+ { "min_threads", "Minimum threads", SILC_PARAM_UINT32 },
+ { "max_threads", "Maximum threads", SILC_PARAM_UINT32 },
+
+ The accelerator itself doesn't have to use the option structure to
+ parse the options if not wanted. It is defined for the caller so
+ they can learn the supported options in a well defined way.
+
+ o Diffie-Hellman acceleration
+
+ (o Symmetric key cryptosystem acceleration? They are always sycnhronouos
+ even with hardware acceleration so the crypto API shouldn't require
+ changes.) maybe
+
+
+lib/silcmath
============
- o The regex code from lib/contrib might compile fine on all platforms.
- No need to make it silcutil/unix/ specific. Add them to generic
- silcutil.c. (***TESTNG NEEDED)
+ o Import TFM. We want TFM's speed but its memory requirements are
+ just too much. By default it uses large pre-allocated tables which
+ will eat memory when there are thousands of public keys in system.
+ We probably want to change TFM's fp_int dynamic so that a specific
+ size can be allocated for the int. We could have two new functions:
- o Silc FD Stream to WIN32 (lib/silcutil/silcfdstream.h) (***TESTING NEEDED)
+ SilcBool silc_mp_init_size(SilcMPInt *mp, SilcUInt32 bit_size);
+ SilcBool silc_mp_sinit_size(SilcStack stack, SilcMPInt *mp,
+ SilcUInt32 bit_size);
- o bool -> SilcBool (***DONE)
+ Which by default allocates `bit_size' bits instead of some default
+ value. silc_mp_init would allocate the default FP_SIZE with TFM
+ and do normal init with TMA and GMP. _init_size with TMA and GMP
+ would be same as _init.
+ o Add AND, OR and XOR support to TFM or ask Tom to do it.
-lib/silcutil/silcbuffer.h ****DONE****
-=========================
+ o The SILC MP API function must start returning indication of success
+ and failure of the operation.
- o Remove the `truelen' field from SilcBuffer as it is entirely
- redundant since we can get the true length of the buffer by
- doing buffer->end - buffer->header. Add silc_buffer_truelen
- macro instead. Consider also removing `len' field too since
- it effectively is buffer->tail - buffer->data, and adding
- silc_buffer_len macro can do the same. These would save
- totally 8 bytes of memory per buffer. (***DONE)
+ o Do SilcStack support for silc_mp_init, silc_mp_init_size and other
+ any other MP function (including utility ones) that may allocate
+ memory.
+ o All utility functions should be made non-allocating ones.
-lib/silcutil/silcbuffmt.[ch] ****DONE****
-============================
- o SilcStack aware silc_buffer_unformat (***DONE)
+SILC XML Library, lib/silcxml/
+==============================
- o SilcStack aware silc_buffer_format (***DONE)
+ o SILC XML API (wrapper to expat). Look at the expat API and simplify
+ it. The SILC XML API should have at most 8-10 API functions. It should
+ be possible to create full XML parser with only one function. And, it
+ should be possible to have a function that is able to parse an entire
+ XML document. It should also have a parser function to be able to
+ parse a stream of XML data (SilcStream). It MUST NOT have operations
+ that require multiple function calls to be able to execute that one
+ operation (like creating parser).
- o silc_buffer_format reallocates automatically (***DONE)
- o SILC_STR_OFFSET (***DONE)
+lib/silcske/silcske.[ch]
+========================
+ o Ratelimit to UDP/IP transport for incoming packets.
-lib/silcutil/silcstack.[ch] ****DONE****
-===========================
- o Data stack implementation (***DONE)
+lib/silcasn1
+============
+ o Negative integer encoding is missing, add it.
-lib/silcutil/silcstream.[ch] ****DONE****
-============================
+ o SILC_ASN1_CHOICE should perhaps return an index what choice in the
+ choice list was found. Currently it is left for caller to figure out
+ which choice was found. (***DONE)
- o Add abstract SilcStream. (***DONE)
+ o SILC_ASN1_NULL in decoding should return SilcBool whether or not
+ the NULL was present. It's important when it's SILC_ASN1_OPTIONAL
+ and we need to know whether it was present or not. (***DONE)
-lib/silcutil/silcsocketstream.[ch] ****PARTY DONE****
-==================================
+lib/silcpgp
+===========
- o Add SilcSocketStream (***DONE)
+ o OpenPGP certificate support, allowing the use of PGP public keys.
- o Add SilcSocketStream for WIN32 (***TESTING NEEDED)
- o Test QoS after the changes made to socket stream
+lib/silcssh
+===========
+ o SSH2 public key/private key support, allowing the use of SSH2 keys.
+ RFC 4716. (***DONE)
-lib/silcutil/silcschedule*.[ch] ****PARTLY DONE****
-===============================
- o Scheduler can be optimized for FD tasks by changing the fd_queue
- to SilcHashTable instead of using linked list. We need to do
- one-to-one mapping of FD to task and hash table is more efficient
- for this usage.
+lib/silcpkix
+============
- Also redefine the silc_select to perhaps return a separate
- structure of the events that actually occurred, instead of
- returning the events in the fd_list which is then traversed
- in the generic code to find the changed events. This can be
- made faster by having own struct which includes only the
- changed events, thus the tarversing is faster since the whole
- fd_list is not traversed anymore (it is still traversed in the
- silc_select but at least it removes one extra tarversing later
- for the same list).
+ o PKIX implementation
- Other task queues should be changed to use SilcList. (***DONE)
- o Add SILC scheduler's internal routines into a table of implementation
- function pointers, that the generic code then takes as extern from
- implementation. These are the silc_schedule_internal_* routines.
- (***DONE)
+apps/silcd
+==========
- o Change SILC_TASK_CALLBACK to non-static, and remove the macro
- SILC_TASK_CALLBACK_GLOBAL. (***DONE)
+ o Deprecate the old server. Write interface for the new lib/silcserver
+ server library. The interface should work on Unix/Linux systems.
- o SILC Schedule API changes to WIN32. (***TESTING NEEDED)
+ o Consider deprecating also the old config file format and use XML
+ istead. This should require SILC XML API implementation first.
+ o The configuration must support dynamic router and server connections.
+ The silcd must work without specifying any servers or routers to
+ connect to.
-lib/silcutil/silcasync.[ch] ****DONE****
-===========================
+ o The configuration must support specifying whether the server is
+ SILC Server or SILC Router. This should not be deduced from the
+ configuration as it was in < 1.2.
- o Add SilcAsyncOperation to utility library. Any function that takes
- callback as an argument must/should return SilcAsyncOperation.
- (***DONE)
+ o The configuration must support specifying the ciphers and hmacs and
+ their order so that user can specify which algorithms take preference.
-lib/silcutil/silctime.[ch] ****DONE****
-===========================
+lib/silcserver
+==============
- o SilcTime. (***DONE)
+ o Rewrite the entire server. Deprecate apps/silcd as the main server
+ implementation and create lib/silcserver/. It is a platform
+ independent server library. The apps/silcd will merely provide a
+ a simple interface for the library.
- o system time, universal, generalized. (***DONE)
+ o Write the SILC Server library extensively using SILC FSM.
+ o Server library must support multiple networks. This means that one
+ server must be able to create multiple connections that each reach
+ different SILC network. This means also that all cache's etc. must
+ be either connection-specific or network-specific.
-lib/silcutil/silcfsm.[ch] ****DONE****
-=========================
+ o Library must support dynamic router and server connections. This means
+ that connections are create only when they are needed, like when someone
+ says JOIN foo@foo.bar.com or WHOIS foobar@silcnet.org.
- o SILC Finite State Machine API. Replaces SILC Protocol API (***DONE)
+ o Library must support server-to-server connections even though protocol
+ prohibits that. The responder of the connection should automatically
+ act as a router. The two servers create an own, isolated, SILC network.
+ To be used specifically with dynamic connections.
+ o Library must support multiple threads and must be entirely thread safe.
-lib/silcutil/silcnet*, lib/silcutil/*/silc*net* ****PARTLY DONE****
-===============================================
+ o Library must have support for SERVICE command.
- o Add UDP interface (***DONE)
+ o Both UDP and TCP support for incoming connecetions. Maintaining long
+ term UDP sessions.
- o Add UDP interface for WIN32 (***TESTING NEEDED)
+ o The server must be able to run behind NAT device. This means that
+ Server ID must be based on public IP instead of private IP.
- o New network interfaces (***DONE)
+ o The following data must be in per-connection context: client id cache,
+ server id cache, channel id cache, all statistics must be
+ per-connection.
+ o The following data must be in per-thread context: command context
+ freelist/pool, pending commands, random number generator.
-lib/silcmath ****PARTLY DONE****
-============
+ o Do inccoming packet processing in an own FSM thread in the
+ server-threads FSM. Same as in client library.
- o Test on x86_64.
+ o Binding to other ports than 706 too. To allow easier traversing
+ through NATs and firewalls server should bind to 80, 443 and 7706
+ by default (at least try to bind). Connections must work normally
+ even if they were established to some other port other than 706.
- o Change LTM and TFM function names when importing to SILC tree to avoid
- rare linking problems on system that has same named symbols already in
- the system. (***DONE)
+ Connection option that attemps to connect to remot server with various
+ different mechanisms: UDP 706, TCP 706, TCP 80, TCP 443, UDP 7706 and
+ TCP 7706. This is the so called hole punching mechanism.
+ o Ability to recover from rekey errors, at least try to.
-lib/silcutil/symbian/ ****PARTLY DONE****
-=====================
+ o Reference count all Silc*Entry structures.
- o lib/silcutil/symbian routines missing or not completed.
- (****TESTING NEEDED)
+ Some issues that must be kept in mind from 1.0 and 1.1 silcd's:
- o Something needs to be thought to the logging globals as well,
- like silc_debug etc. They won't work on EPOC. Perhaps logging
- and debugging is to be disabled on EPOC.
+ o The server and router software MUST work out of the box. After
+ installation the server must not require any configuration to run the
+ most basic working configuration. No defining IP addresses, etc.
+ The server must work just by running it.
+ o The SERVER_SIGNOFF notify handing is not optimal, because it'll
+ cause sending of multiple SIGNOFF notify's instead of the one
+ SERVER_SIGNOFF notify that the server received. This should be
+ optimized so that the only SERVER_SIGNOFF is sent and not
+ SIGNOFF of notify at all (using SIGNOFF takes the idea about
+ SERVER_SIGNOFF away entirely).
-lib/silcasn1 ****DONE****
-============
+ o Another SERVER_SIGNOFF opt/bugfix: Currently the signoff is
+ sent to a client if it is on same channel as the client that
+ signoffed. However, the entire SERVER_SIGNOFF list is sent to
+ the client, ie. it may receive clients that was not on the
+ same channel. This is actually against the specs. It must be
+ done per channel. It shouldn't receive the whole list just
+ because one client happened to be on same channel.
- o ASN.1 library (***DONE)
+ o If client's public key is saved in the server (and doing public key
+ authentication) then the hostname and the username information could
+ be taken from the public key. Should be a configuration option!
- o Header documentation missing. (***DONE)
+ o Add a timeout to handling incoming JOIN commands. It should be
+ enforced that JOIN command is executed only once in a second or two
+ seconds. Now it is possible to accept n incoming JOIN commands
+ and process them without any timeouts. THis must be employed because
+ each JOIN command will create and distribute the new channel key
+ to everybody on the channel.
- o Some string encodings missing (copy/paste matter). (***DONE)
+ o Related to above. If multiple JOINs are received in sequence perhaps
+ new key should be created only once, if the JOINs are handeled at the same
+ time. Now we create multiple keys and never end up using them because
+ many JOINs are processed at the same time in sequence. Only the last
+ key ends up being used.
projects / crypto.git / blobdiff