X-Git-Url: http://git.silcnet.org/gitweb/?p=silc.git;a=blobdiff_plain;f=apps%2Fsilcd%2Fserver.h;h=495bd263dc29bfefce379995039d488bb8994019;hp=41379eab36342905ccee30bce80c8503f9dbf17a;hb=e5d8d3db6caa344b3d419b884556c21b15e7d123;hpb=4d35af3be05cacf69ca4bd634973cdcd25118e98 diff --git a/apps/silcd/server.h b/apps/silcd/server.h index 41379eab..495bd263 100644 --- a/apps/silcd/server.h +++ b/apps/silcd/server.h @@ -4,7 +4,7 @@ Author: Pekka Riikonen - Copyright (C) 1997 - 2000 Pekka Riikonen + Copyright (C) 1997 - 2001 Pekka Riikonen This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -24,162 +24,194 @@ /* Forward declaration for SILC Server object. The actual object is defined in internal header file for server routines. I want to keep the object private hence this declaration. */ -typedef struct SilcServerObjectStruct *SilcServer; +typedef struct SilcServerStruct *SilcServer; -#define SILC_SERVER_MAX_CONNECTIONS 10000 +/* Forward declaration of backup server context */ +typedef struct SilcServerBackupStruct *SilcServerBackup; + +#define SILC_SERVER_MAX_CONNECTIONS 1000 /* General definitions */ +/* SILC port */ +#define SILC_PORT 768; + +/* Server and router. Used internally by the code. */ #define SILC_SERVER 0 #define SILC_ROUTER 1 +#define SILC_BACKUP_ROUTER 2 + +/* Connection retry timeout. We implement exponential backoff algorithm + in connection retry. The interval of timeuot grows when retry count + grows. */ +#define SILC_SERVER_RETRY_COUNT 4 /* Max retry count */ +#define SILC_SERVER_RETRY_MULTIPLIER 7 / 4 /* Interval growth */ +#define SILC_SERVER_RETRY_RANDOMIZER 2 /* timeout += rnd % 2 */ +#define SILC_SERVER_RETRY_INTERVAL_MIN 10 /* Min retry timeout */ +#define SILC_SERVER_RETRY_INTERVAL_MAX 600 /* Max generated timeout */ + +/* + Silc Server Params. + + Structure to hold various default parameters for server that can be + given before running the server. + +*/ +typedef struct { + uint32 retry_count; + uint32 retry_interval_min; + uint32 retry_interval_min_usec; + uint32 retry_interval_max; + char retry_keep_trying; + + uint32 protocol_timeout; + uint32 protocol_timeout_usec; + + char require_reverse_mapping; +} *SilcServerParams; + +/* Callback function that is called after the key exchange and connection + authentication protocols has been completed with a remote router. The + `server_entry' is the remote router entry. */ +typedef void (*SilcServerConnectRouterCallback)(SilcServer server, + SilcServerEntry server_entry, + void *context); + +typedef struct { + SilcSocketConnection sock; + + /* Remote host name and port */ + char *remote_host; + int remote_port; + bool backup; + + /* Current connection retry info */ + uint32 retry_count; + uint32 retry_timeout; + + /* Back pointer to server */ + SilcServer server; + + SilcServerConnectRouterCallback callback; + void *callback_context; +} *SilcServerConnection; /* Macros */ /* This macro is used to send notify messages with formatted string. The string is formatted with arguments and the formatted string is sent as argument. */ -#define SILC_SERVER_SEND_NOTIFY(server, sock, type, fmt) \ -do { \ - char *__fmt__ = silc_format fmt; \ - silc_server_send_notify(server, sock, type, 1, __fmt__, strlen(__fmt__)); \ - silc_free(__fmt__); \ +#define SILC_SERVER_SEND_NOTIFY(server, sock, type, fmt) \ +do { \ + char *__fmt__ = silc_format fmt; \ + silc_server_send_notify(server, sock, FALSE, \ + type, 1, __fmt__, strlen(__fmt__)); \ + silc_free(__fmt__); \ } while(0); +/* Check whether rekey protocol is active */ +#define SILC_SERVER_IS_REKEY(sock) \ + (sock->protocol && sock->protocol->protocol && \ + sock->protocol->protocol->type == SILC_PROTOCOL_SERVER_REKEY) + /* Prototypes */ int silc_server_alloc(SilcServer *new_server); void silc_server_free(SilcServer server); int silc_server_init(SilcServer server); +void silc_server_daemonise(SilcServer server); void silc_server_run(SilcServer server); void silc_server_stop(SilcServer server); +void silc_server_start_key_exchange(SilcServer server, + SilcServerConnection sconn, + int sock); void silc_server_packet_parse(SilcPacketParserContext *parser_context); void silc_server_packet_parse_type(SilcServer server, SilcSocketConnection sock, SilcPacketContext *packet); -void silc_server_packet_send(SilcServer server, - SilcSocketConnection sock, - SilcPacketType type, - SilcPacketFlags flags, - unsigned char *data, - unsigned int data_len, - int force_send); -void silc_server_packet_send_dest(SilcServer server, - SilcSocketConnection sock, - SilcPacketType type, - SilcPacketFlags flags, - void *dst_id, - SilcIdType dst_id_type, - unsigned char *data, - unsigned int data_len, - int force_send); -void silc_server_packet_forward(SilcServer server, - SilcSocketConnection sock, - unsigned char *data, unsigned int data_len, - int force_send); -void silc_server_packet_send_to_channel(SilcServer server, - SilcChannelEntry channel, - SilcPacketType type, - unsigned char *data, - unsigned int data_len, - int force_send); -void silc_server_packet_relay_to_channel(SilcServer server, - SilcSocketConnection sender_sock, - SilcChannelEntry channel, - void *sender, - SilcIdType sender_type, - unsigned char *data, - unsigned int data_len, - int force_send); -void silc_server_packet_send_local_channel(SilcServer server, - SilcChannelEntry channel, - SilcPacketType type, - SilcPacketFlags flags, - unsigned char *data, - unsigned int data_len, - int force_send); -void silc_server_packet_relay_command_reply(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); +void silc_server_create_connection(SilcServer server, + char *remote_host, uint32 port); void silc_server_close_connection(SilcServer server, SilcSocketConnection sock); +void silc_server_free_client_data(SilcServer server, + SilcSocketConnection sock, + SilcClientEntry client, + int notify, + char *signoff); void silc_server_free_sock_user_data(SilcServer server, SilcSocketConnection sock); void silc_server_remove_from_channels(SilcServer server, SilcSocketConnection sock, - SilcClientEntry client); + SilcClientEntry client, + int notify, + char *signoff_message, + int keygen); int silc_server_remove_from_one_channel(SilcServer server, SilcSocketConnection sock, SilcChannelEntry channel, SilcClientEntry client, int notify); -int silc_server_client_on_channel(SilcClientEntry client, - SilcChannelEntry channel); void silc_server_disconnect_remote(SilcServer server, SilcSocketConnection sock, const char *fmt, ...); -void silc_server_private_message(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); -void silc_server_channel_message(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); -void silc_server_channel_key(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); -void silc_server_send_motd(SilcServer server, - SilcSocketConnection sock); -void silc_server_send_error(SilcServer server, - SilcSocketConnection sock, - const char *fmt, ...); -void silc_server_send_notify(SilcServer server, - SilcSocketConnection sock, - SilcNotifyType type, - unsigned int argc, ...); -void silc_server_send_notify_dest(SilcServer server, - SilcSocketConnection sock, - void *dest_id, - SilcIdType dest_id_type, - SilcNotifyType type, - unsigned int argc, ...); -void silc_server_send_notify_to_channel(SilcServer server, - SilcChannelEntry channel, - SilcNotifyType type, - unsigned int argc, ...); -void silc_server_send_notify_on_channels(SilcServer server, - SilcClientEntry client, - SilcNotifyType type, - unsigned int argc, ...); -void silc_server_send_new_id(SilcServer server, - SilcSocketConnection sock, - int broadcast, - void *id, SilcIdType id_type, - unsigned int id_len); -void silc_server_send_replace_id(SilcServer server, - SilcSocketConnection sock, - int broadcast, - void *old_id, SilcIdType old_id_type, - unsigned int old_id_len, - void *new_id, SilcIdType new_id_type, - unsigned int new_id_len); -void silc_server_send_remove_channel_user(SilcServer server, - SilcSocketConnection sock, - int broadcast, - void *client_id, void *channel_id); -void silc_server_replace_id(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); -SilcChannelEntry silc_server_new_channel(SilcServer server, - SilcServerID *router_id, - char *cipher, char *channel_name); -SilcClientEntry silc_server_new_client(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); -SilcServerEntry silc_server_new_server(SilcServer server, +SilcChannelEntry silc_server_create_new_channel(SilcServer server, + SilcServerID *router_id, + char *cipher, + char *hmac, + char *channel_name, + int broadcast); +SilcChannelEntry +silc_server_create_new_channel_with_id(SilcServer server, + char *cipher, + char *hmac, + char *channel_name, + SilcChannelID *channel_id, + int broadcast); +bool silc_server_create_channel_key(SilcServer server, + SilcChannelEntry channel, + uint32 key_len); +SilcChannelEntry silc_server_save_channel_key(SilcServer server, + SilcBuffer key_payload, + SilcChannelEntry channel); +void silc_server_perform_heartbeat(SilcSocketConnection sock, + void *hb_context); +void silc_server_announce_get_channel_users(SilcServer server, + SilcChannelEntry channel, + SilcBuffer *channel_users, + SilcBuffer *channel_users_modes); +void silc_server_announce_get_channels(SilcServer server, + SilcIDList id_list, + SilcBuffer *channels, + SilcBuffer *channel_users, + SilcBuffer **channel_users_modes, + uint32 *channel_users_modes_c, + SilcChannelID ***channel_ids, + unsigned long creation_time); +void silc_server_announce_servers(SilcServer server, bool global, + unsigned long creation_time); +void silc_server_announce_clients(SilcServer server, + unsigned long creationg_time); +void silc_server_announce_channels(SilcServer server, + unsigned long creationg_time); +void silc_server_get_users_on_channel(SilcServer server, + SilcChannelEntry channel, + SilcBuffer *user_list, + SilcBuffer *mode_list, + uint32 *user_count); +void silc_server_save_users_on_channel(SilcServer server, SilcSocketConnection sock, - SilcPacketContext *packet); -void silc_server_new_id(SilcServer server, SilcSocketConnection sock, - SilcPacketContext *packet); -void silc_server_remove_channel_user(SilcServer server, - SilcSocketConnection sock, - SilcPacketContext *packet); + SilcChannelEntry channel, + SilcClientID *noadd, + SilcBuffer user_list, + SilcBuffer mode_list, + uint32 user_count); +SilcSocketConnection silc_server_get_client_route(SilcServer server, + unsigned char *id_data, + uint32 id_len, + SilcClientID *client_id, + SilcIDListData *idata); +SilcBuffer silc_server_get_client_channel_list(SilcServer server, + SilcClientEntry client); +SilcClientEntry silc_server_get_client_resolve(SilcServer server, + SilcClientID *client_id); #endif