+++ /dev/null
-/*
-
- server_params.c
-
- Author: Pekka Riikonen <priikone@silcnet.org>
-
- Copyright (C) 2005 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
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
-*/
-
-#include "silc.h"
-#include "silcserver.h"
-#include "server_internal.h"
-
-/************************** Types and definitions ***************************/
-
-/* Default values */
-#define SILC_SERVER_PARAM_RETRY_COUNT 7 /* Max retry count */
-#define SILC_SERVER_PARAM_RETRY_MULTIPLIER 2 /* Interval growth */
-#define SILC_SERVER_PARAM_RETRY_RANDOMIZER 2 /* timeout += rnd % 2 */
-#define SILC_SERVER_PARAM_RETRY_INTERVAL_MIN 10 /* Min retry timeout */
-#define SILC_SERVER_PARAM_RETRY_INTERVAL_MAX 600 /* Max generated timeout */
-#define SILC_SERVER_PARAM_REKEY 3600 /* Session rekey interval */
-#define SILC_SERVER_PARAM_KEEPALIVE 300 /* Heartbeat interval */
-#define SILC_SERVER_PARAM_MAX_CONNS 1000 /* Max connections */
-#define SILC_SERVER_PARAM_MAX_CONNS_SINGLE 1000 /* Max conns per host */
-#define SILC_SERVER_PARAM_CONN_PER_THREAD 30 /* Connections per thread */
-#define SILC_SERVER_PARAM_CHANNEL_REKEY 3600 /* Channel rekey interval */
-#define SILC_SERVER_PARAM_SKE_TIMEOUT 60 /* SKE timeout */
-#define SILC_SERVER_PARAM_CONNAUTH_TIMEOUT 60 /* CONN_AUTH timeout */
-#define SILC_SERVER_PARAM_QOS_RATE_LIMIT 10 /* QoS rate limit */
-#define SILC_SERVER_PARAM_QOS_BYTES_LIMIT 2048 /* QoS bytes limit */
-#define SILC_SERVER_PARAM_QOS_LIMIT_SEC 0 /* QoS limit sec */
-#define SILC_SERVER_PARAM_QOS_LIMIT_USEC 500000 /* QoS limit usec */
-#define SILC_SERVER_PARAM_CH_JOIN_LIMIT 50 /* Join limit */
-
-
-/************************ Static utility functions **************************/
-
-/* Sets connection parameter defaults */
-
-static void
-silc_server_param_set_param_defaults(SilcServerParamConnParams params,
- SilcServerParamConnParams defaults)
-{
-#define SET_PARAM_DEFAULT(p, d) params->p = \
- (params->p ? params->p : (defaults && defaults->p ? defaults->p : d))
-
- SET_PARAM_DEFAULT(connections_max, SILC_SERVER_PARAM_MAX_CONNS);
- SET_PARAM_DEFAULT(connections_max_per_host,
- SILC_SERVER_PARAM_MAX_CONNS_SINGLE);
- SET_PARAM_DEFAULT(keepalive_secs, SILC_SERVER_PARAM_KEEPALIVE);
- SET_PARAM_DEFAULT(reconnect_count, SILC_SERVER_PARAM_RETRY_COUNT);
- SET_PARAM_DEFAULT(reconnect_interval, SILC_SERVER_PARAM_RETRY_INTERVAL_MIN);
- SET_PARAM_DEFAULT(reconnect_interval_max,
- SILC_SERVER_PARAM_RETRY_INTERVAL_MAX);
- SET_PARAM_DEFAULT(key_exchange_rekey, SILC_SERVER_PARAM_REKEY);
- SET_PARAM_DEFAULT(qos_rate_limit, SILC_SERVER_PARAM_QOS_RATE_LIMIT);
- SET_PARAM_DEFAULT(qos_bytes_limit, SILC_SERVER_PARAM_QOS_BYTES_LIMIT);
- SET_PARAM_DEFAULT(qos_limit_sec, SILC_SERVER_PARAM_QOS_LIMIT_SEC);
- SET_PARAM_DEFAULT(qos_limit_usec, SILC_SERVER_PARAM_QOS_LIMIT_USEC);
- SET_PARAM_DEFAULT(chlimit, SILC_SERVER_PARAM_CH_JOIN_LIMIT);
-
-#undef SET_PARAM_DEFAULT
-}
-
-
-/***************************** Retrieval API ********************************/
-
-/* Returns the denied connection configuration entry by host. */
-
-SilcServerParamDeny
-silc_server_params_find_denied(SilcServer server, char *ip, char *host)
-{
- SilcServerParams params = server->params;
- SilcServerParamDeny deny;
-
- if (ip) {
- silc_list_start(params->denied);
- while ((deny = silc_list_get(params->denied)) != SILC_LIST_END) {
- if (deny->host && !silc_string_compare(deny->host, ip))
- continue;
- return deny;
- }
- }
-
- if (host) {
- silc_list_start(params->denied);
- while ((deny = silc_list_get(params->denied)) != SILC_LIST_END) {
- if (deny->host && !silc_string_compare(deny->host, host))
- continue;
- return deny;
- }
- }
-
- return NULL;
-}
-
-/* Returns client connection information from configuration file by host
- (name or ip) */
-
-SilcServerParamClient
-silc_server_params_find_client(SilcServer server, char *ip, char *host)
-{
- SilcServerParams params = server->params;
- SilcServerParamClient client;
-
- if (ip) {
- silc_list_start(params->clients);
- while ((client = silc_list_get(params->clients)) != SILC_LIST_END) {
- if (client->host && !silc_string_compare(client->host, ip))
- continue;
- return client;
- }
- }
-
- if (host) {
- silc_list_start(params->clients);
- while ((client = silc_list_get(params->clients)) != SILC_LIST_END) {
- if (client->host && !silc_string_compare(client->host, host))
- continue;
- return client;
- }
- }
-
- return NULL;
-}
-
-/* Returns server connection info from server configuartion by host
- (name or ip). */
-
-SilcServerParamServer
-silc_server_params_find_server(SilcServer server, char *ip, char *host)
-{
- SilcServerParams params = server->params;
- SilcServerParamServer serv;
-
- if (ip) {
- silc_list_start(params->servers);
- while ((serv = silc_list_get(params->servers)) != SILC_LIST_END) {
- if (serv->host && !silc_string_compare(serv->host, ip))
- continue;
- return serv;
- }
- }
-
- if (host) {
- silc_list_start(params->servers);
- while ((serv = silc_list_get(params->servers)) != SILC_LIST_END) {
- if (serv->host && !silc_string_compare(serv->host, host))
- continue;
- return serv;
- }
- }
-
- return NULL;
-}
-
-/* Returns router connection info from server configuration by
- host (name or ip). */
-
-SilcServerParamRouter
-silc_server_params_find_router(SilcServer server, char *ip,
- char *host, int port)
-{
- SilcServerParams params = server->params;
- SilcServerParamRouter serv;
-
- if (ip) {
- silc_list_start(params->routers);
- while ((serv = silc_list_get(params->routers)) != SILC_LIST_END) {
- if (serv->host && !silc_string_compare(serv->host, ip))
- continue;
- if (port && serv->port && serv->port != port)
- continue;
- return serv;
- }
- }
-
- if (host) {
- silc_list_start(params->routers);
- while ((serv = silc_list_get(params->routers)) != SILC_LIST_END) {
- if (serv->host && !silc_string_compare(serv->host, host))
- continue;
- if (port && serv->port && serv->port != port)
- continue;
- return serv;
- }
- }
-
- return NULL;
-}
-
-/* Find backup router connection by host (name or ip) */
-
-SilcServerParamRouter
-silc_server_params_find_backup(SilcServer server, char *host, char *ip)
-{
- SilcServerParams params = server->params;
- SilcServerParamRouter serv;
-
- if (ip) {
- silc_list_start(params->routers);
- while ((serv = silc_list_get(params->routers)) != SILC_LIST_END) {
- if (!serv->backup_router)
- continue;
- if (!silc_string_compare(serv->host, ip))
- continue;
- return serv;
- }
- }
-
- if (host) {
- silc_list_start(params->routers);
- while ((serv = silc_list_get(params->routers)) != SILC_LIST_END) {
- if (!serv->backup_router)
- continue;
- if (!silc_string_compare(serv->host, host))
- continue;
- return serv;
- }
- }
-
- return NULL;
-}
-
-
-/******************************* Public API *********************************/
-
-/* Allocate parameters context */
-
-SilcServerParams silc_server_params_alloc(void)
-{
- SilcServerParams params;
-
- params = silc_calloc(1, sizeof(*params));
- if (!params)
- return NULL;
-
- /* Init lists */
- silc_list_init(params->cipher, struct SilcServerParamCipherStruct, next);
- silc_list_init(params->hash, struct SilcServerParamHashStruct, next);
- silc_list_init(params->hmac, struct SilcServerParamHmacStruct, next);
- silc_list_init(params->pkcs, struct SilcServerParamPkcsStruct, next);
- silc_list_init(params->clients, struct SilcServerParamClientStruct, next);
- silc_list_init(params->servers, struct SilcServerParamServerStruct, next);
- silc_list_init(params->routers, struct SilcServerParamRouterStruct, next);
- silc_list_init(params->conn_params, SilcServerParamConnParamsStruct, next);
- silc_list_init(params->denied, struct SilcServerParamDenyStruct, next);
- silc_list_init(params->admins, struct SilcServerParamAdminStruct, next);
-
- /* Set default values */
- silc_server_param_set_param_defaults(¶ms->param, NULL);
- params->channel_rekey_secs = SILC_SERVER_PARAM_CHANNEL_REKEY;
- params->key_exchange_timeout = SILC_SERVER_PARAM_SKE_TIMEOUT;
- params->conn_auth_timeout = SILC_SERVER_PARAM_CONNAUTH_TIMEOUT;
- params->connections_per_thread = SILC_SERVER_PARAM_CONN_PER_THREAD;
-
- return params;
-}
-
-/* Frees parameters context */
-
-void silc_server_params_free(SilcServerParams params)
-{
- silc_free(params);
-}
-
-/* Allocate server info context */
-
-SilcServerParamServerInfo silc_server_params_serverinfo_alloc(void)
-{
- SilcServerParamServerInfo server_info;
-
- server_info = silc_calloc(1, sizeof(*server_info));
- if (!server_info)
- return NULL;
-
- silc_list_init(server_info->interfaces,
- struct SilcServerParamInterfaceStruct, next);
-
- return server_info;
-}
-
-/* Set server info */
-
-void silc_server_params_set_serverinfo(SilcServerParams params,
- SilcServerParamServerInfo server_info)
-{
- params->server_info = server_info;
-}
-
-/* Add interface */
-
-void silc_server_params_serverinfo_add_iface(SilcServerParamServerInfo info,
- SilcServerParamInterface iface)
-{
- silc_list_add(info->interfaces, iface);
-}
-
-/* Add cipher */
-
-void silc_server_params_add_cipher(SilcServerParams params,
- SilcServerParamCipher cipher)
-{
- silc_list_add(params->cipher, cipher);
-}
-
-/* Add hash */
-
-void silc_server_params_add_hash(SilcServerParams params,
- SilcServerParamHash hash)
-{
- silc_list_add(params->hash, hash);
-}
-
-/* Add HMAC */
-
-void silc_server_params_add_hmac(SilcServerParams params,
- SilcServerParamHmac hmac)
-{
- silc_list_add(params->hmac, hmac);
-}
-
-/* Add PKCS */
-
-void silc_server_params_add_pkcs(SilcServerParams params,
- SilcServerParamPkcs pkcs)
-{
- silc_list_add(params->pkcs, pkcs);
-}
-
-/* Add client */
-
-void silc_server_params_add_client(SilcServerParams params,
- SilcServerParamClient client)
-{
- silc_list_add(params->clients, client);
-}
-
-/* Add server */
-
-void silc_server_params_add_server(SilcServerParams params,
- SilcServerParamServer server)
-{
- silc_list_add(params->servers, server);
-}
-
-/* Add router */
-
-void silc_server_params_add_router(SilcServerParams params,
- SilcServerParamRouter router)
-{
- silc_list_add(params->routers, router);
-}
-
-/* Add connection parameters */
-
-void silc_server_params_add_connparam(SilcServerParams params,
- SilcServerParamConnParams param)
-{
- silc_list_add(params->conn_params, param);
-}
-
-/* Add deny */
-
-void silc_server_params_add_deny(SilcServerParams params,
- SilcServerParamDeny deny)
-{
- silc_list_add(params->denied, deny);
-}
-
-/* Add admin */
-
-void silc_server_params_add_admin(SilcServerParams params,
- SilcServerParamAdmin admin)
-{
- silc_list_add(params->admins, admin);
-}
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