-TODO for 1.1 And Beyond
+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.
+ 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 Giving WHOIS for nick that doesn't exist should remove any same
+ named entries from the client cache.
+ o peer-to-peer private messages
-lib/silcclient, The Client Library ***PARTLY DONE****
-==================================
+ o Private message key request notification to application. See XXX in
+ client_prvmsg.c.
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? (maybe 1.1, latest
- 1.2)
-
- o silcclient.h clean up and API rewrites.
-
- o silcclient_entry.h finishing, all entry relates APIs to this header.
-
- o SilcChannelEntry, SilcServerEntry, SilcChannelUser, allocating,
- freeing, finding, etc. rewrite. Also making them reference counted for
- multi threads use. (***DONE)
-
- o Rewrite silc_client_get_clients_by_channel.
-
- o Rewrite client side WHOIS command (for whois -details). (***DONE)
-
- o Finish all the missing SILC packet processings, rewrites. (***DONE)
+ received from user that hasn't been resolved/joined?
- o The client_notify.c rewrite. (***DONE)
+ o Message ACKing support.
- o Resuming to client_register.c (remove client_resume.c) (***DONE)
-
- o Rekey rewrite. (***DONE)
-
- o Remove protocol.[ch]. (***DONE)
+ 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 File transfer rewrite. (***DONE)
+ 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.
+
+
+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 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 Add directory opening/traversing functions
+
+ o silc_getopt routines
+
+ o The SILC Event signals. Asynchronous events that can be created,
+ connected to and signalled. Either own event routines or glued into
+ SilcSchedule:
+
+ 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, ...);
+
+ 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;
+
+ va_start(args, context);
+ integer = va_arg(args, SilcUInt32);
+ buf = va_arg(args, SilcBuffer);
+ va_end(args);
+ ...
+ }
+
+ 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 If the event signals are added, the SILC_PARAM_* stuff needs to be
+ moved from silcbuffmt.h to silctypes.h or something similar.
+
+ 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.
+
+ 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 enumate all children
+ from any of the schedulers.
+
+ SilcSchedule silc_schedule_init(int max_tasks, void *app_context,
+ SilcSchedule parent);
+ SilcSchedule silc_schedule_get_parent(SilcSchedule schedule);
+
+ 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 Structured log messages to Log API. Allows machine readable log
+ messages. Would allow sending of any kind of data in a log message.
+
+ o Base64 to an own API
+
+ o Timer API
- o File transfer API documentation.
+ 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 Connection auth request. (***DONE)
+ o silc_stringprep to non-allocating version.
- o Password auth test, public key auth test.
+ o silc_hash_table_replace -> silc_hash_table_set. Retain support for
+ silc_hash_table_replace as macro. (***DONE)
- o Starting key exchange directly, rewrite. (***DONE)
+ o SilcStack aware SilcHashTable. (***DONE)
- o Channel messages, channel private keys, channel entires, channel
- search, etc. rewrite. (***TESTING NEEDED)
+ o SilcStack aware SilcDList. (***DONE)
- 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 Thread pool API. Add this to lib/silcutil/silcthread.[ch]. (***DONE)
- o Key agreement rewrite. (***TESTING NEEDED)
+ o Fast mutex implementation. Fast rwlock implementation. Mutex and
+ rwlock implementation using atomic operations.
- o Connecting to remote client (***DONE)
+ o Compression routines are missing. The protocol supports packet
+ compression thus it must be implemented. SILC Zip API must be
+ defined.
- o peer-to-peer private messages
+ 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 Private message waiting API (in threads) (***TESING NEEDED)
+ o Add '%@' format to silc_snprintf functions. It marks for external
+ rendering function of following type:
- o client_attrs.c, attributes rewrite. (***TESTING NEEDED)
+ /* 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);
- o No SilcBuffer lists back to application in command_reply operations.
- Convert them all to real lists and/or structures for easier use.
- (***DONE)
+ It can work like following:
- o Nickname formatting rewrite. (***TESTING NEEDED)
+ char *id_renderer(void *data)
+ {
+ char tmp[32];
+ id_to_str(tmp, sizeof(tmp), (SilcID *)data);
+ return strdup(tmp);
+ }
- o UDP connections. (***TESTING NEEDED)
+ silc_snprintf(buf, sizeof(buf), "Client ID %@", id_renderer, client_id);
- o Message ACKing.
+ (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
- 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 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 All packet waiting timeout tests and error condition tests.
+ (o mmap) maybe
-lib/silcsftp ****DONE****
-============
+lib/silcutil/symbian/
+=====================
- o Porting to use the new util library. (***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 Read-ahead (1.2)
+SFTP Library, lib/silcsftp/
+===========================
-lib/silccore/silcpacket.[ch] ****PARTLY DONE****
-============================
+ o Read prefetch (read-ahead, reading ahead of time). Maybe if this can
+ be done easily.
- o SilcPacketEngine. (***DONE)
- o New SILC Packet API. (***DONE)
+SKR Library, lib/silcskr/
+=========================
- o Implement silc_packet_engine_stop and silc_packet_stream_destroy. (***DONE)
+ o Add fingerprint as search constraint.
- o IV Included flag support, UDP transport support (***TESTING NEEDED)
+ o Add OpenPGP support. Adding, removing, fetching PGP keys. (Keyring
+ support?)
- o SILC_PACKET_FLAG_ACK support. Implement ACK packet and packet payload.
+ 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?).
+ 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:
+
+ 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);
-lib/silccore/silcid.[ch] ****DONE****
-========================
+ NULL argument would be ignored and skipped.
- 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 OR logical rule in addition of the current default AND, eg:
- o silc_id_str2id, silc_id2str to non-allocating routines. (***DONE)
+ // 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);
-lib/silcskr ****PARTLY DONE****
-===========
+ o SilcStack to SKR API.
- o Removing key from the repository is not possible currently. It should
- be. (***DONE)
- o Add fingerprint as search constraint. (1.2)
+Crypto Library, lib/silccrypt/
+==============================
+ o SilcStack to APIs.
-lib/silcske/silcske.[ch] ***PARTLY 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.
- o UDP transport changes; retransmission support by using exponential
- backoff algorithm. (***DONE)
+ /* Signature computation callback */
+ typedef void (*SilcPKCSSignCb)(SilcBool success,
+ const unsigned char *signature,
+ SilcUInt32 signature_len,
+ void *context);
- o SilcConnAuth header file documentation. (***DONE)
+ /* Signature verification callback */
+ typedef void (*SilcPKCSVerifyCb)(SilcBool success, void *context);
- o Ratelimit to UDP/IP transport for incoming packets. (1.2)
+ /* Encryption callback */
+ typedef void (*SilcPKCSEncryptCb)(SilcBool success,
+ const unsigned char *encrypted,
+ SilcUInt32 encrypted_len,
+ void *context);
+ /* Decryption callback */
+ typedef void (*SilcPKCSDecryptCb)(SilcBool success,
+ const unsigned char *decrypted,
+ SilcUInt32 decrypted_len,
+ void *context);
-lib/silccrypt ****PARTLY DONE****
-=============
+ Either add new _async functions or add the callbacks to existing API
+ and if the callback is NULL then the API is not async and if provided
+ it may be async. For example;
- o Implement PKCS #1 sign/verify with hash OID. (***TESTING NEEDED)
+ SilcBool silc_pkcs_sign(SilcPrivateKey private_key,
+ unsigned char *src, SilcUInt32 src_len,
+ unsigned char *dst, SilcUInt32 dst_size,
+ SilcUInt32 *dst_len,
+ SilcBool compute_hash, SilcHash hash,
+ SilcPKCSSignCb async_sign,
+ void *async_sign_context);
- o Implement SILC Public Key Version 2 handling in sign/verify. Implement
- Version (V) identifier (***DONE)
+ (if this is done then there's no reason why the buffers in the
+ callbacks cannot be the ones user gives here) or allow only async:
- o Add fingerprint to SilcSILCPublicKey and retrieval to silcpk.h.
+ SilcBool silc_pkcs_sign(SilcPrivateKey private_key,
+ unsigned char *src, SilcUInt32 src_len,
+ SilcBool compute_hash, SilcHash hash,
+ SilcPKCSSignCb async_sign,
+ void *async_sign_context);
- 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.
- (***DONE)
+ or add new:
- o Assembler AES (***DONE)
+ SilcBool silc_pkcs_sign_async(SilcPrivateKey private_key,
+ unsigned char *src, SilcUInt32 src_len,
+ SilcBool compute_hash, SilcHash hash,
+ SilcPKCSSignCb async_sign,
+ void *async_sign_context);
+
+ 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.
+
+ o Add DSS support. Take implementation from Tom or make it yourself.
o Implement the defined SilcDH API. The definition is in
- lib/silccrypt/silcdh.h. (1.2)
+ 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 SSH2 public keys support, allowing the use of SSH2 public keys in
- SILC. (1.2)
+ o ECDSA and ECDH
- o Add DSS support (1.2)
-
- o ECDSA and ECDH (1.2)
-
-
-lib/silcutil ****PARTLY DONE****
-============
-
- 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 silc_stringprep to non-allocating version.
+ o All cipher, hash, hmac etc. allocation routines should take their name
+ in as const char * not const unsigned char *.
- o bool -> SilcBool (***DONE)
- o Silc FD Stream to WIN32 (lib/silcutil/silcfdstream.h)
+SILC Accelerator Library
+========================
- 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. (1.2)
+ 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.
- o Compression routines are missing. The protocol supports packet
- compression thus it must be implemented. SILC Zip API must be
- defined. (1.2)
+ Something in the lines of (preliminary):
+ /* Register accelerator to system. Initializes the accelerator. */
+ Varargs are optional accelerator specific init parameteres. */
+ SilcBool silc_acc_register(SilcAccelerator acc, ...);
-lib/silcutil/silcbuffer.h ****DONE****
-=========================
+ silc_acc_register(softacc, "min_threads", 2, "max_threads", 16, NULL);
- 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)
+ /* Unregister accelerator. Uninitializes the accelerator. */
+ SilcBool silc_acc_unregister(const SilcAccelerator acc);
+ /* Return list of the registered accelerators */
+ SilcDList silc_acc_get_supported(void);
-lib/silcutil/silcbuffmt.[ch] ****DONE****
-============================
+ /* Find existing accelerator. `name' is accelerator's name. */
+ SilcAccelerator silc_acc_find(const char *name);
- o SilcStack aware silc_buffer_unformat (***DONE)
+ /* Return accelerator's name */
+ const char *silc_acc_get_name(SilcAccelerator acc);
- o SilcStack aware silc_buffer_format (***DONE)
+ /* Accelerate `public_key'. Return accelerated public key. */
+ SilcPublicKey silc_acc_public_key(SilcAccelerator acc,
+ SilcPublicKey public_key);
- o silc_buffer_format reallocates automatically (***DONE)
+ /* Accelerate `private_key'. Returns accelerated private key. */
+ SilcPrivateKey silc_acc_private_key(SilcAccelerator acc,
+ SilcPrivateKey private_key);
- o SILC_STR_OFFSET (***DONE)
+ /* Return the underlaying public key */
+ SilcPublicKey silc_acc_get_public_key(SilcAccelerator acc,
+ SilcPublicKey public_key);
+ /* Return the underlaying private key */
+ SilcPrivateKey silc_acc_get_private_key(SilcAccelerator acc,
+ SilcPrivateKey private_key);
-lib/silcutil/silcstack.[ch] ****DONE****
-===========================
+ typedef struct SilcAcceleratorObject {
+ const char *name; /* Accelerator's name */
+ SilcBool (*init)(va_list va); /* Initialize accelerator */
+ SilcBool (*uninit)(void); /* Uninitialize accelerator */
+ const SilcPKCSAlgorithm *pkcs; /* Accelerated PKCS algorithms */
+ const SilcDHObject *dh; /* Accelerated Diffie-Hellmans */
+ const SilcCipherObject *cipher; /* Accelerated ciphers */
+ const SilcHashObject *hash; /* Accelerated hashes */
+ const SilcHmacObject *hmac; /* Accelerated HMACs */
+ const SilcRngObject *rng; /* Accelerated RNG's */
+ } *SilcAccelerator, SilcAcceleratorStruct;
- o Data stack implementation (***DONE)
+ Allows accelerator to have multiple accelerators (cipher, hash etc)
+ and multiple different algorithms and implementations (SHA-1, SHA-256 etc).
+ SilcPublicKey->SilcSILCPublicKey->RsaPublicKey accelerated as:
+ SilcPublicKey->SilcAcceleratorPublicKey->SilcSoftAccPublicKey->
+ SilcPublicKey->SilcSILCPublicKey->RsaPublicKey
-lib/silcutil/silcstream.[ch] ****DONE****
-============================
+ silc_acc_public_key creates SilcPublicKey and SilcAcceleratorPublicKey
+ and acc->pkcs->import_public_key creates SilcSoftAccPublicKey.
- o Add abstract SilcStream. (***DONE)
+ o Implement software accelerator. It is a thread pool system where the
+ public key and private key operations are executed in threads.
+ const struct SilcAcceleratorObject softacc =
+ {
+ "softacc", softacc_init, softacc_uninit,
+ softacc_pkcs, NULL, NULL, NULL, NULL
+ }
-lib/silcutil/silcsocketstream.[ch] ****PARTY DONE****
-==================================
-
- o Add SilcSocketStream (***DONE)
-
- o Add SilcSocketStream for WIN32 (***TESTING NEEDED)
+ /* Called from silc_acc_private_key */
+ int silc_softacc_import_private_key(void *key, SilcUInt32 key_len,
+ void **ret_private_key)
+ {
+ SilcSoftAccPrivateKey prv = silc_calloc(1, sizeof(*prv));
+ prv->pkcs = acc->pkcs;
+ prv->private_key = key;
+ *ret_private_key = prv;
+ }
- o Test QoS after the changes made to socket stream
+ (o Symmetric key cryptosystem acceleration? They are always sycnhronouos
+ even with hardware acceleration so the crypto API shouldn't require
+ changes.) maybe
-lib/silcutil/silcschedule*.[ch] ****PARTLY DONE****
-===============================
+lib/silcmath
+============
- 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.
+ o Import TFM. Talk to Tom to add the missing functions. Use TFM in
+ client and client library, but TMA in server, due to the significantly
+ increased memory consumption with TFM, and the rare need for public
+ key operations in server.
- 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).
+ We want TFM's speed but not TFM's memory requirements. Talk to Tom
+ about making the TFM mp dynamic just as it is in LTM.
- Other task queues should be changed to use SilcList. (***DONE)
+ o The SILC MP API function must start returning indication of success
+ and failure of the operation.
- 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)
+ 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 Change SILC_TASK_CALLBACK to non-static, and remove the macro
- SILC_TASK_CALLBACK_GLOBAL. (***DONE)
+ o All utility functions should be made non-allocating ones.
- o SILC Schedule API changes to WIN32. (***TESTING NEEDED)
+SILC XML Library, lib/silcxml/
+==============================
-lib/silcutil/silcasync.[ch] ****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 Add SilcAsyncOperation to utility library. Any function that takes
- callback as an argument must/should return SilcAsyncOperation.
- (***DONE)
+lib/silcske/silcske.[ch]
+========================
-lib/silcutil/silctime.[ch] ****PARTLY DONE****
-===========================
+ o Ratelimit to UDP/IP transport for incoming packets.
- o SilcTime. (***DONE)
- o system time, universal, generalized. (***DONE)
+lib/silcasn1
+============
- o Fix universal time decoding (doesn't accept all forms) in silctime.c.
+ o Negative integer encoding is missing, add it.
+ 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.
-lib/silcutil/silcfsm.[ch] ****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.
- o SILC Finite State Machine API. Replaces SILC Protocol API (***DONE)
+lib/silcpgp
+===========
-lib/silcutil/silcnet*, lib/silcutil/*/silc*net* ****PARTLY DONE****
-===============================================
+ o OpenPGP certificate support, allowing the use of PGP public keys
+ in SILC.
- o Add UDP interface (***DONE)
- o Add UDP interface for WIN32 (***TESTING NEEDED)
+lib/silcssh
+===========
- o New network interfaces (***DONE)
+ o SSH2 public key/private key support, allowing the use of SSH2 keys
+ in SILC. RFC 4716.
-lib/silcmath
+lib/silcpkix
============
- o Import TFM. Talk to Tom to add the missing functions. Use TFM in
- client and client library, but TMA in server, due to the significantly
- increased memory consumption with TFM, and the rare need for public
- key operations in server.
-
- 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.
-
- o The SILC MP API function must start returning indication of success
- and failure of the operation.
-
- 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 PKIX implementation
- o Test on x86_64.
- o All utility functions should be made non-allocating ones.
+apps/silcd
+==========
+ o Deprecate the old server. Write interface for the new lib/silcserver
+ server library. The interface should work on Unix/Linux systems.
-lib/silcutil/symbian/ ****PARTLY DONE****
-=====================
+ o Consider deprecating also the old config file format and use XML
+ istead. This should require SILC XML API implementation first.
- o lib/silcutil/symbian routines missing or not completed.
- (****TESTING NEEDED)
+ o The configuration must support dynamic router and server connections.
+ The silcd must work without specifying any servers or routers to
+ connect to.
- 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 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 The configuration must support specifying the ciphers and hmacs and
+ their order so that user can specify which algorithms take preference.
-lib/silcasn1 ****PARTLY DONE****
-============
- o ASN.1 library (***DONE)
+lib/silcserver
+==============
- o Header documentation missing. (***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 Some string encodings missing (copy/paste matter). (***DONE)
+ o Write the SILC Server library extensively using SILC FSM.
- o Negative integer encoding
+ 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.
+ 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.
-lib/silccore
-============
+ 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 All payload encoding routines should take SilcStack as argument. (1.2)
+ o Library must support multiple threads and must be entirely thread safe.
- o All payload test routines into lib/silccore/tests/.
+ o Library must have support for SERVICE command.
+ 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.
-lib/silcpkix (1.2)
-============
+ 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 PKIX implementation
+ o The following data must be in per-thread context: command context
+ freelist/pool, pending commands, random number generator.
+ o Do inccoming packet processing in an own FSM thread in the
+ server-threads FSM. Same as in client library.
-lib/silcpgp (1.2)
-===========
-
- o OpenPGP certificate support, allowing the use of PGP public keys
- in SILC.
-
-
-lib/silcserver (1.2)
-==============
+ o Reference count all Silc*Entry structures.
- o (Re)write commands/command replys.
-
- o (Re)write notify handling.
+ Some issues that must be kept in mind from 1.0 and 1.1 silcd's:
o The SERVER_SIGNOFF notify handing is not optimal, because it'll
cause sending of multiple SIGNOFF notify's instead of the one
done per channel. It shouldn't receive the whole list just
because one client happened to be on same channel.
- o MAYBE: The SilcChannelClientEntry can be:
- SilcUInt32 address;
- SilcUInt32 mode;
-
- where address is SilcClientEntry address XOR SilcChannelEntry.
- You can get SilcClientEntry by doing client = chl->address XOR channel,
- and SilcChannelEntry by doing channel = chl->address XOR client.
- As long as the other pointer is always available when accessing the
- structure this can be done.
-
- o Add reference counters to all Silc*Entry structures
-
- o SERVICEs support (plugin, SIM)
-
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!
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 (Fix this to 0.9.x).
+ to everybody on the channel.
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.
-
- o The CMODE cipher & hmac change problem (#101).
projects / silc.git / blobdiff