X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=apps%2Fsilcd%2Fserverconfig.c;h=8ff643c1e0f4fc126349a05cdba23d956d3ec844;hb=413da0f8686910f5e627393157566ae729ca99c4;hp=2f617c2621c8676c31b8513a41c081c924461391;hpb=0f9738ce962b8498bbed0a75d5fb6fa127e3577f;p=silc.git

diff --git a/apps/silcd/serverconfig.c b/apps/silcd/serverconfig.c
index 2f617c26..8ff643c1 100644
--- a/apps/silcd/serverconfig.c
+++ b/apps/silcd/serverconfig.c
@@ -2,1338 +2,2017 @@
 
   serverconfig.c
 
-  Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+  Author: Giovanni Giacobbi <giovanni@giacobbi.net>
 
-  Copyright (C) 1997 - 2000 Pekka Riikonen
+  Copyright (C) 1997 - 2002 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; either version 2 of the License, or
   (at your option) any later version.
-  
+
   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.
 
 */
-/*
- * $Id$
- * $Log$
- * Revision 1.1.1.1  2000/06/27 11:36:56  priikone
- * 	Importet from internal CVS/Added Log headers.
- *
- *
- */
+/* $Id$ */
 
 #include "serverincludes.h"
 #include "server_internal.h"
+#include <dirent.h>
 
-/*  XXX
-   All possible configuration sections for SILC server. 
-
-   <Cipher>
-
-       Format:
-
-       +<Cipher name>:<SIM path>
-
-   <PKCS>
-
-       Format:
-
-       +<PKCS name>:<key length>
-
-   <HashFunction>
-
-       Format:
-
-       +<Hash function name>:<SIM path>
-
-   <ServerInfo>
-
-       This section is used to set the server informations.
-
-       Format:
-
-       +<Server DNS name>:<Server IP>:<Geographic location>:<Port>
-
-   <AdminInfo>
-
-       This section is used to set the server's administrative information.
-
-       Format:
-
-       +<Location>:<Server type>:<Admin's name>:<Admin's email address>
-
-   <ListenPort>
-
-       This section is used to set ports the server is listenning.
-
-       Format:
-
-       +<Local IP/UNIX socket path>:<Remote IP>:<Port>
-
-   <Logging>
-
-       This section is used to set various logging files, their paths
-       and maximum sizes. All the other directives except those defined
-       below are ignored in this section. Log files are purged after they
-       reach the maximum set byte size.
-
-       Format:
-
-       +infologfile:<path>:<max byte size>
-       +errorlogfile:<path>:<max byte size>
-
-   <ConnectionClass>
-
-       This section is used to define connection classes. These can be
-       used to optimize the server and the connections.
-
-       Format:
-
-       +<Class number>:<Ping freq>:<Connect freq>:<Max links>
-
-   <ClientAuth>
-
-       This section is used to define client authentications.
-
-       Format:
-
-       +<Remote address or name>:<auth method>:<password/cert/key/???>:<Port>:<Class>
-
-   <AdminAuth>
-
-       This section is used to define the server's administration 
-       authentications.
-
-       Format:
-
-       +<Hostname>:<auth method>:<password/cert/key/???>:<Nickname hash>:<Class>
-
-   <ServerConnection>
-
-       This section is used to define the server connections to this
-       server/router. Only routers can have normal server connections.
-       Normal servers leave this section epmty. The remote server cannot be
-       older than specified Version ID.
-
-       Format:
-
-       +<Remote address or name>:<auth method>:<password/key/???>:<Port>:<Version ID>:<Class>
-
-   <RouterConnection>
-
-       This section is used to define the router connections to this
-       server/router. Both normal server and router can have router
-       connections. Normal server usually has only one connection while
-       a router can have multiple. The remote server cannot be older than
-       specified Version ID.
-
-       Format:
-
-       +<Remote address or name>:<auth method>:<password/key/???>:<Port>:<Version ID>:<Class>
-
-   <DenyConnection>
-
-       This section is used to deny specific connections to your server. This
-       can be used to deny both clients and servers.
-
-       Format:
-
-       +<Remote address or name or nickname>:<Time interval>:<Comment>:<Port>
-
-   <RedirectClient>
+#if 0
+#define SERVER_CONFIG_DEBUG(fmt) SILC_LOG_DEBUG(fmt)
+#else
+#define SERVER_CONFIG_DEBUG(fmt)
+#endif
 
-       This section is used to set the alternate servers that clients will be
-       redirected to when our server is full.
+/* auto-declare needed variables for the common list parsing */
+#define SILC_SERVER_CONFIG_SECTION_INIT(__type__)			\
+  SilcServerConfig config = (SilcServerConfig) context;			\
+  __type__ *findtmp, *tmp = (__type__ *) config->tmp;			\
+  int got_errno = 0
+
+/* allocate the tmp field for fetching data */
+#define SILC_SERVER_CONFIG_ALLOCTMP(__type__)				\
+  if (!tmp) {								\
+    config->tmp = silc_calloc(1, sizeof(*findtmp));			\
+    tmp = (__type__ *) config->tmp;					\
+  }
 
-       Format:
+/* append the tmp field to the specified list */
+#define SILC_SERVER_CONFIG_LIST_APPENDTMP(__list__)			\
+  if (!__list__) {							\
+    __list__ = tmp;							\
+  } else {								\
+    for (findtmp = __list__; findtmp->next; findtmp = findtmp->next);	\
+    findtmp->next = tmp;						\
+  }
 
-       +<Remote address or name>:<Port>
+/* loops all elements in a list and provides a di struct pointer of the
+ * specified type containing the current element */
+#define SILC_SERVER_CONFIG_LIST_DESTROY(__type__, __list__)		\
+  for (tmp = (void *) __list__; tmp;) {					\
+    __type__ *di = (__type__ *) tmp;					\
+    tmp = (void *) di->next;
+
+/* Set EDOUBLE error value and bail out if necessary */
+#define CONFIG_IS_DOUBLE(__x__)						\
+  if ((__x__)) {							\
+    got_errno = SILC_CONFIG_EDOUBLE; 					\
+    goto got_err;							\
+  }
 
-*/
-SilcConfigServerSection silc_config_server_sections[] = {
-  { "[Cipher]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_CIPHER, 4 },
-  { "[PKCS]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_PKCS, 2 },
-  { "[HashFunction]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_HASH_FUNCTION, 4 },
-  { "[ServerInfo]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_SERVER_INFO, 4 },
-  { "[AdminInfo]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_ADMIN_INFO, 4 },
-  { "[ListenPort]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_LISTEN_PORT, 3 },
-  { "[Logging]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_LOGGING, 3 },
-  { "[ConnectionClass]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_CONNECTION_CLASS, 4 },
-  { "[ClientConnection]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_CLIENT_CONNECTION, 5 },
-  { "[ServerConnection]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_SERVER_CONNECTION, 6 },
-  { "[RouterConnection]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_ROUTER_CONNECTION, 6 },
-  { "[AdminConnection]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_ADMIN_CONNECTION, 5 },
-  { "[DenyConnection]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_DENY_CONNECTION, 4 },
-  { "[RedirectClient]", 
-    SILC_CONFIG_SERVER_SECTION_TYPE_REDIRECT_CLIENT, 2 },
-  
-  { NULL, SILC_CONFIG_SERVER_SECTION_TYPE_NONE, 0 }
-};
+/* Free the authentication fields in the specified struct
+ * Expands to two instructions */
+#define CONFIG_FREE_AUTH(__section__)			\
+  silc_free(__section__->passphrase);			\
+  if (__section__->publickeys)				\
+    silc_hash_table_free(__section__->publickeys);
 
-/* Allocates a new configuration object, opens configuration file and
-   parses the file. The parsed data is returned to the newly allocated
-   configuration object. */
+static void my_free_public_key(void *key, void *context, void *user_data)
+{
+  silc_pkcs_public_key_free(context);
+}
 
-SilcConfigServer silc_config_server_alloc(char *filename)
+/* Set default values to those parameters that have not been defined */
+static void
+my_set_param_defaults(SilcServerConfigConnParams *params,
+		      SilcServerConfigConnParams *defaults)
 {
-  SilcConfigServer new;
-  SilcBuffer buffer;
-  SilcConfigServerParse config_parse;
+#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_MAX_CONNECTIONS);
+  SET_PARAM_DEFAULT(connections_max_per_host,
+		    SILC_SERVER_MAX_CONNECTIONS_SINGLE);
+  SET_PARAM_DEFAULT(keepalive_secs, SILC_SERVER_KEEPALIVE);
+  SET_PARAM_DEFAULT(reconnect_count, SILC_SERVER_RETRY_COUNT);
+  SET_PARAM_DEFAULT(reconnect_interval, SILC_SERVER_RETRY_INTERVAL_MIN);
+  SET_PARAM_DEFAULT(reconnect_interval_max, SILC_SERVER_RETRY_INTERVAL_MAX);
+  SET_PARAM_DEFAULT(key_exchange_rekey, SILC_SERVER_REKEY);
+  SET_PARAM_DEFAULT(qos_rate_limit, SILC_SERVER_QOS_RATE_LIMIT);
+  SET_PARAM_DEFAULT(qos_bytes_limit, SILC_SERVER_QOS_BYTES_LIMIT);
+  SET_PARAM_DEFAULT(qos_limit_sec, SILC_SERVER_QOS_LIMIT_SEC);
+  SET_PARAM_DEFAULT(qos_limit_usec, SILC_SERVER_QOS_LIMIT_USEC);
+
+#undef SET_PARAM_DEFAULT
+}
 
-  SILC_LOG_DEBUG(("Allocating new configuration object"));
+/* Find connection parameters by the parameter block name. */
+static SilcServerConfigConnParams *
+my_find_param(SilcServerConfig config, const char *name)
+{
+  SilcServerConfigConnParams *param;
 
-  new = silc_calloc(1, sizeof(*new));
-  if (!new) {
-    fprintf(stderr, "Could not allocate new configuration object");
-    return NULL;
+  for (param = config->conn_params; param; param = param->next) {
+    if (!strcasecmp(param->name, name))
+      return param;
   }
 
-  new->filename = filename;
+  SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			 "Cannot find Params \"%s\".", name));
 
-  /* Open configuration file and parse it */
-  config_parse = NULL;
-  buffer = NULL;
-  silc_config_open(filename, &buffer);
-  if (!buffer)
-    goto fail;
-  if ((silc_config_server_parse(new, buffer, &config_parse)) == FALSE)
-    goto fail;
-  if ((silc_config_server_parse_lines(new, config_parse)) == FALSE)
-    goto fail;
-
-  silc_free(buffer);
-
-  return new;
-
- fail:
-  silc_free(new);
   return NULL;
 }
 
-/* Free's a configuration object. */
-
-void silc_config_server_free(SilcConfigServer config)
-{
-  if (config) {
-    silc_free(config->filename);
-    silc_free(config->server_info);
-    silc_free(config->admin_info);
-    silc_free(config->listen_port);
-    silc_free(config->conn_class);
-    silc_free(config->clients);
-    silc_free(config->admins);
-    silc_free(config->servers);
-    silc_free(config->routers);
-    silc_free(config->denied);
-    silc_free(config->redirect);
-    silc_free(config);
-  }
-}
-
-/* Parses the the buffer and returns the parsed lines into return_config
-   argument. The return_config argument doesn't have to be initialized 
-   before calling this. It will be initialized during the parsing. The
-   buffer sent as argument can be safely free'd after this function has
-   succesfully returned. */
-
-int silc_config_server_parse(SilcConfigServer config, SilcBuffer buffer, 
-			     SilcConfigServerParse *return_config)
+/* parse an authdata according to its auth method */
+static bool my_parse_authdata(SilcAuthMethod auth_meth, const char *p,
+			      void **auth_data, SilcUInt32 *auth_data_len)
 {
-  int i, begin;
-  unsigned int linenum;
-  char line[1024], *cp;
-  SilcConfigServerSection *cptr = NULL;
-  SilcConfigServerParse parse = *return_config, first = NULL;
-
-  SILC_LOG_DEBUG(("Parsing configuration file"));
-
-  begin = 0;
-  linenum = 0;
-  while((begin = silc_gets(line, sizeof(line), 
-			   buffer->data, buffer->len, begin)) != EOF) {
-    cp = line;
-    linenum++;
-
-    /* Check for bad line */
-    if (silc_check_line(cp))
-      continue;
-
-    /* Remove tabs and whitespaces from the line */
-    if (strchr(cp, '\t')) {
-      i = 0;
-      while(strchr(cp + i, '\t')) {
-	*strchr(cp + i, '\t') = ' ';
-	i++;
-      }
-    }
-    for (i = 0; i < strlen(cp); i++) {
-      if (cp[i] != ' ') {
-	if (i)
-	  cp++;
-	break;
+  if (auth_meth == SILC_AUTH_PASSWORD) {
+    /* p is a plain text password */
+    if (auth_data && auth_data_len) {
+      if (!silc_utf8_valid(p, strlen(p))) {
+	*auth_data_len = silc_utf8_encoded_len(p, strlen(p),
+					       SILC_STRING_LANGUAGE);
+	*auth_data = silc_calloc(*auth_data_len, sizeof(unsigned char));
+	silc_utf8_encode(p, strlen(p), SILC_STRING_LANGUAGE, *auth_data,
+			 *auth_data_len);
+      } else {
+	*auth_data = (void *) strdup(p);
+	*auth_data_len = (SilcUInt32) strlen(p);
       }
-      cp++;
     }
-
-    /* Parse line */
-    switch(cp[0]) {
-    case '[':
-      /*
-       * Start of a section
-       */
-
-      /* Remove new line sign */
-      if (strchr(cp, '\n'))
-	*strchr(cp, '\n') = '\0';
-      
-      /* Check for matching sections */
-      for (cptr = silc_config_server_sections; cptr->section; cptr++)
-	if (!strcmp(cp, cptr->section))
-	  break;
-
-      if (!cptr->section) {
-	fprintf(stderr, "%s:%d: Unknown section `%s'\n", 
-			config->filename, linenum, cp);
+  } else if (auth_meth == SILC_AUTH_PUBLIC_KEY) {
+    /* p is a public key file name */
+    SilcPublicKey public_key;
+    SilcPublicKey cached_key;
+
+    if (!silc_pkcs_load_public_key(p, &public_key, SILC_PKCS_FILE_PEM))
+      if (!silc_pkcs_load_public_key(p, &public_key, SILC_PKCS_FILE_BIN)) {
+	SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			       "Could not load public key file!"));
 	return FALSE;
       }
 
-      break;
-    default:
-      /*
-       * Start of a configuration line
-       */
-
-      if (cptr->type != SILC_CONFIG_SERVER_SECTION_TYPE_NONE) {
-	
-	if (strchr(cp, '\n'))
-	    *strchr(cp, '\n') = ':';
-
-	if (parse == NULL) {
-	  parse = silc_calloc(1, sizeof(*parse));
-	  parse->line = NULL;
-	  parse->section = NULL;
-	  parse->next = NULL;
-	  parse->prev = NULL;
-	} else {
-	  if (parse->next == NULL) {
-	    parse->next = silc_calloc(1, sizeof(*parse->next));
-	    parse->next->line = NULL;
-	    parse->next->section = NULL;
-	    parse->next->next = NULL;
-	    parse->next->prev = parse;
-	    parse = parse->next;
-	  }
-	}
-	
-	if (first == NULL)
-	  first = parse;
-
-	/* Add the line to parsing structure for further parsing. */
-	if (parse) {
-	  parse->section = cptr;
-	  parse->line = silc_buffer_alloc(strlen(cp) + 1);
-	  parse->linenum = linenum;
-	  silc_buffer_pull_tail(parse->line, strlen(cp));
-	  silc_buffer_put(parse->line, cp, strlen(cp));
-	}
-      }
-      break;
+    if (*auth_data &&
+	silc_hash_table_find_ext(*auth_data, public_key, (void **)&cached_key,
+				 NULL, silc_hash_public_key, NULL,
+				 silc_hash_public_key_compare, NULL)) {
+      silc_pkcs_public_key_free(public_key);
+      SILC_SERVER_LOG_WARNING(("Warning: public key file \"%s\" already "
+			       "configured, ignoring this key", p));
+      return TRUE; /* non fatal error */
     }
-  }
-  
-  /* Set the return_config argument to its first value so that further
-     parsing can be started from the first line. */
-  *return_config = first;
+
+    /* The auth_data is a pointer to the hash table of public keys. */
+    if (auth_data) {
+      if (*auth_data == NULL)
+	*auth_data = silc_hash_table_alloc(1, silc_hash_public_key, NULL,
+					   NULL, NULL,
+					   my_free_public_key, NULL,
+					   TRUE);
+      silc_hash_table_add(*auth_data, public_key, public_key);
+    }
+  } else
+    abort();
 
   return TRUE;
 }
 
-/* Parses the lines earlier read from configuration file. The config object
-   must not be initialized, it will be initialized in this function. The
-   parse_config argument is uninitialized automatically during this
-   function. */
-
-int silc_config_server_parse_lines(SilcConfigServer config, 
-				   SilcConfigServerParse parse_config)
+static bool my_parse_publickeydir(const char *dirname, void **auth_data)
 {
-  int ret, check = FALSE;
-  unsigned int checkmask;
-  char *tmp;
-  SilcConfigServerParse pc = parse_config;
-  SilcBuffer line;
+  int total = 0;
+  struct dirent *get_file;
+  DIR *dp;
 
-  SILC_LOG_DEBUG(("Parsing configuration lines"));
-  
-  if (!config)
+  if (!(dp = opendir(dirname))) {
+    SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			   "Could not open directory \"%s\"", dirname));
     return FALSE;
-  
-  checkmask = 0;
-  while(pc) {
-    check = FALSE;
-    line = pc->line;
-
-    /* Get number of tokens in line */
-    ret = silc_config_check_num_token(line);
-    if (ret != pc->section->maxfields) {
-      /* Bad line */
-      fprintf(stderr, "%s:%d: Missing tokens, %d tokens (should be %d)\n",
-	      config->filename, pc->linenum, ret, 
-	      pc->section->maxfields);
-      break;
-    }
+  }
 
-    /* Parse the line */
-    switch(pc->section->type) {
-    case SILC_CONFIG_SERVER_SECTION_TYPE_CIPHER:
+  /* errors are not considered fatal */
+  while ((get_file = readdir(dp))) {
+    const char *filename = get_file->d_name;
+    char buf[1024];
+    int dirname_len = strlen(dirname), filename_len = strlen(filename);
+    struct stat check_file;
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->cipher);
+    /* Ignore "." and "..", and take files only with ".pub" suffix. */
+    if (!strcmp(filename, ".") || !strcmp(filename, "..") ||
+	(filename_len < 5) || strcmp(filename + filename_len - 4, ".pub"))
+      continue;
 
-      /* Get cipher name */
-      ret = silc_config_get_token(line, &config->cipher->alg_name);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Cipher name not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
+    memset(buf, 0, sizeof(buf));
+    snprintf(buf, sizeof(buf) - 1, "%s%s%s", dirname,
+	     (dirname[dirname_len - 1] == '/' ? "" : "/"), filename);
 
-      /* Get module name */
-      config->cipher->sim_name = NULL;
-      ret = silc_config_get_token(line, &config->cipher->sim_name);
-      if (ret < 0)
-	break;
+    if (stat(buf, &check_file) < 0) {
+      SILC_SERVER_LOG_ERROR(("Error stating file %s: %s", buf,
+			     strerror(errno)));
+    } else if (S_ISREG(check_file.st_mode)) {
+      my_parse_authdata(SILC_AUTH_PUBLIC_KEY, buf, auth_data, NULL);
+      total++;
+    }
+  }
 
-      /* Get block length */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Cipher block length not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
-      config->cipher->block_len = atoi(tmp);
-      silc_free(tmp);
+  SILC_LOG_DEBUG(("Tried to load %d public keys in \"%s\"", total, dirname));
+  return TRUE;
+}
 
-      /* Get key length */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Cipher key length not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
-      config->cipher->key_len = atoi(tmp);
-      silc_free(tmp);
+/* Callbacks */
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+SILC_CONFIG_CALLBACK(fetch_generic)
+{
+  SilcServerConfig config = (SilcServerConfig) context;
+  int got_errno = 0;
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_PKCS:
+  if (!strcmp(name, "module_path")) {
+    CONFIG_IS_DOUBLE(config->module_path);
+    config->module_path = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "prefer_passphrase_auth")) {
+    config->prefer_passphrase_auth = *(bool *)val;
+  }
+  else if (!strcmp(name, "require_reverse_lookup")) {
+    config->require_reverse_lookup = *(bool *)val;
+  }
+  else if (!strcmp(name, "connections_max")) {
+    config->param.connections_max = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "connections_max_per_host")) {
+    config->param.connections_max_per_host = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "keepalive_secs")) {
+    config->param.keepalive_secs = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "reconnect_count")) {
+    config->param.reconnect_count = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "reconnect_interval")) {
+    config->param.reconnect_interval = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "reconnect_interval_max")) {
+    config->param.reconnect_interval_max = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "reconnect_keep_trying")) {
+    config->param.reconnect_keep_trying = *(bool *)val;
+  }
+  else if (!strcmp(name, "key_exchange_rekey")) {
+    config->param.key_exchange_rekey = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "key_exchange_pfs")) {
+    config->param.key_exchange_pfs = *(bool *)val;
+  }
+  else if (!strcmp(name, "channel_rekey_secs")) {
+    config->channel_rekey_secs = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "key_exchange_timeout")) {
+    config->key_exchange_timeout = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "conn_auth_timeout")) {
+    config->conn_auth_timeout = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "version_protocol")) {
+    CONFIG_IS_DOUBLE(config->param.version_protocol);
+    config->param.version_protocol =
+      (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "version_software")) {
+    CONFIG_IS_DOUBLE(config->param.version_software);
+    config->param.version_software =
+      (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "version_software_vendor")) {
+    CONFIG_IS_DOUBLE(config->param.version_software_vendor);;
+    config->param.version_software_vendor =
+      (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "detach_disabled")) {
+    config->detach_disabled = *(bool *)val;
+  }
+  else if (!strcmp(name, "detach_timeout")) {
+    config->detach_timeout = (SilcUInt32) *(int *)val;
+  }
+  else if (!strcmp(name, "qos")) {
+    config->param.qos = *(bool *)val;
+  }
+  else if (!strcmp(name, "qos_rate_limit")) {
+    config->param.qos_rate_limit = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "qos_bytes_limit")) {
+    config->param.qos_bytes_limit = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "qos_limit_sec")) {
+    config->param.qos_limit_sec = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "qos_limit_usec")) {
+    config->param.qos_limit_usec = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "debug_string")) {
+    CONFIG_IS_DOUBLE(config->debug_string);
+    config->debug_string = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->pkcs);
+  return SILC_CONFIG_OK;
 
-      /* Get PKCS name */
-      ret = silc_config_get_token(line, &config->pkcs->alg_name);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: PKCS name not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
+ got_err:
+  return got_errno;
+}
 
-      /* Get key length */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: PKCS key length not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
-      config->pkcs->key_len = atoi(tmp);
-      silc_free(tmp);
+SILC_CONFIG_CALLBACK(fetch_cipher)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigCipher);
+
+  SERVER_CONFIG_DEBUG(("Received CIPHER type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->name) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->cipher);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigCipher);
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_HASH_FUNCTION:
+  /* Identify and save this value */
+  if (!strcmp(name, "name")) {
+    CONFIG_IS_DOUBLE(tmp->name);
+    tmp->name = strdup((char *) val);
+  }
+  else if (!strcmp(name, "module")) {
+    CONFIG_IS_DOUBLE(tmp->module);
+    tmp->module = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "keylength")) {
+    tmp->key_length = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "blocklength")) {
+    tmp->block_length = *(SilcUInt32 *)val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->name);
+  silc_free(tmp->module);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->hash_func);
+SILC_CONFIG_CALLBACK(fetch_hash)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigHash);
+
+  SERVER_CONFIG_DEBUG(("Received HASH type=%d name=%s (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->name || (tmp->block_length == 0) || (tmp->digest_length == 0)) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-      /* Get Hash function name */
-      ret = silc_config_get_token(line, &config->hash_func->alg_name);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Hash function name not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
-      
-      /* Get Hash function module name */
-      config->hash_func->sim_name = NULL;
-      ret = silc_config_get_token(line, &config->hash_func->sim_name);
-      if (ret < 0)
-	break;
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->hash);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigHash);
 
-      /* Get block length */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Hash function block length not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
-      config->hash_func->block_len = atoi(tmp);
-      silc_free(tmp);
+  /* Identify and save this value */
+  if (!strcmp(name, "name")) {
+    CONFIG_IS_DOUBLE(tmp->name);
+    tmp->name = strdup((char *) val);
+  }
+  else if (!strcmp(name, "module")) {
+    CONFIG_IS_DOUBLE(tmp->module);
+    tmp->module = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "blocklength")) {
+    tmp->block_length = *(int *)val;
+  }
+  else if (!strcmp(name, "digestlength")) {
+    tmp->digest_length = *(int *)val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->name);
+  silc_free(tmp->module);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get hash length */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Hash function hash length not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
-      config->hash_func->key_len = atoi(tmp);
-      silc_free(tmp);
+SILC_CONFIG_CALLBACK(fetch_hmac)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigHmac);
+
+  SERVER_CONFIG_DEBUG(("Received HMAC type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->name || !tmp->hash || (tmp->mac_length == 0)) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->hmac);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigHmac);
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_SERVER_INFO:
+  /* Identify and save this value */
+  if (!strcmp(name, "name")) {
+    CONFIG_IS_DOUBLE(tmp->name);
+    tmp->name = strdup((char *) val);
+  }
+  else if (!strcmp(name, "hash")) {
+    CONFIG_IS_DOUBLE(tmp->hash);
+    tmp->hash = strdup((char *) val);
+  }
+  else if (!strcmp(name, "maclength")) {
+    tmp->mac_length = *(int *)val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->name);
+  silc_free(tmp->hash);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      if (!config->server_info)
-	config->server_info = silc_calloc(1, sizeof(*config->server_info));
+SILC_CONFIG_CALLBACK(fetch_pkcs)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigPkcs);
+
+  SERVER_CONFIG_DEBUG(("Received PKCS type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* Check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->name) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-      /* Get server name */
-      ret = silc_config_get_token(line, &config->server_info->server_name);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	/* Server name not defined */
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->pkcs);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigPkcs);
 
-      }
-      
-      /* Get server IP */
-      ret = silc_config_get_token(line, &config->server_info->server_ip);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	/* Server IP not defined */
+  /* Identify and save this value */
+  if (!strcmp(name, "name")) {
+    CONFIG_IS_DOUBLE(tmp->name);
+    tmp->name = strdup((char *) val);
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->name);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
+SILC_CONFIG_CALLBACK(fetch_serverinfo)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigServerInfoInterface);
+  SilcServerConfigServerInfo *server_info = config->server_info;
+
+  SERVER_CONFIG_DEBUG(("Received SERVERINFO type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+
+  /* If there isn't the main struct alloc it */
+  if (!server_info)
+    config->server_info = server_info = (SilcServerConfigServerInfo *)
+		silc_calloc(1, sizeof(*server_info));
+
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    if (!strcmp(name, "primary")) {
+      if (server_info->primary) {
+	SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			       "Double primary specification."));
+	got_errno = SILC_CONFIG_EPRINTLINE;
+	goto got_err;
       }
+      CONFIG_IS_DOUBLE(server_info->primary);
 
-      /* Get server location */
-      ret = silc_config_get_token(line, &config->server_info->location);
-      if (ret < 0)
-	break;
-
-      /* Get server port */
-      /* XXX: Need port here??? */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	/* Port not defined */
-
+      /* now check the temporary struct, don't accept empty block and
+         make sure all fields are there */
+      if (!tmp || !tmp->server_ip || !tmp->port) {
+	got_errno = SILC_CONFIG_EMISSFIELDS;
+	goto got_err;
       }
-      config->server_info->port = atoi(tmp);
-      silc_free(tmp);
-
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
-
-    case SILC_CONFIG_SERVER_SECTION_TYPE_ADMIN_INFO:
-
-      if (!config->admin_info)
-	config->admin_info = silc_calloc(1, sizeof(*config->admin_info));
-
-      /* Get server type */
-      ret = silc_config_get_token(line, &config->admin_info->server_type);
-      if (ret < 0)
-	break;
-
-      /* Get admins name */
-      ret = silc_config_get_token(line, &config->admin_info->admin_name);
-      if (ret < 0)
-	break;
-
-      /* Get admins email address */
-      ret = silc_config_get_token(line, &config->admin_info->admin_email);
-      if (ret < 0)
-	break;
-
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
-
-    case SILC_CONFIG_SERVER_SECTION_TYPE_LISTEN_PORT:
-
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->listen_port);
-
-      /* Get host */
-      ret = silc_config_get_token(line, &config->listen_port->host);
-      if (ret < 0)
-	break;
-
-      /* Get remote IP */
-      ret = silc_config_get_token(line, &config->listen_port->remote_ip);
-      if (ret < 0)
-	break;
-
-      /* Get port */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	/* Any port */
-	config->listen_port->port = 0;
-      } else {
-	config->listen_port->port = atoi(tmp);
-	silc_free(tmp);
+      server_info->primary = tmp;
+      config->tmp = NULL;
+      return SILC_CONFIG_OK;
+    } else if (!strcmp(name, "secondary")) {
+      if (!tmp)
+	return SILC_CONFIG_OK;
+      if (!tmp || !tmp->server_ip || !tmp->port) {
+	got_errno = SILC_CONFIG_EMISSFIELDS;
+	goto got_err;
       }
-
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
-
-    case SILC_CONFIG_SERVER_SECTION_TYPE_CONNECTION_CLASS:
-
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->conn_class);
-
-      /* Get class number */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	/* Class number not defined */
-
+      SILC_SERVER_CONFIG_LIST_APPENDTMP(server_info->secondary);
+      config->tmp = NULL;
+      return SILC_CONFIG_OK;
+    } else if (!server_info->public_key || !server_info->private_key) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
+    return SILC_CONFIG_OK;
+  }
+  if (!strcmp(name, "hostname")) {
+    CONFIG_IS_DOUBLE(server_info->server_name);
+    server_info->server_name = strdup((char *) val);
+  }
+  else if (!strcmp(name, "ip")) {
+    SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigServerInfoInterface);
+    CONFIG_IS_DOUBLE(tmp->server_ip);
+    tmp->server_ip = strdup((char *) val);
+  }
+  else if (!strcmp(name, "port")) {
+    int port = *(int *)val;
+    SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigServerInfoInterface);
+    if ((port <= 0) || (port > 65535)) {
+      SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			     "Invalid port number!"));
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+    tmp->port = (SilcUInt16) port;
+  }
+  else if (!strcmp(name, "servertype")) {
+    CONFIG_IS_DOUBLE(server_info->server_type);
+    server_info->server_type = strdup((char *) val);
+  }
+  else if (!strcmp(name, "admin")) {
+    CONFIG_IS_DOUBLE(server_info->admin);
+    server_info->admin = strdup((char *) val);
+  }
+  else if (!strcmp(name, "adminemail")) {
+    CONFIG_IS_DOUBLE(server_info->email);
+    server_info->email = strdup((char *) val);
+  }
+  else if (!strcmp(name, "location")) {
+    CONFIG_IS_DOUBLE(server_info->location);
+    server_info->location = strdup((char *) val);
+  }
+  else if (!strcmp(name, "user")) {
+    CONFIG_IS_DOUBLE(server_info->user);
+    server_info->user = strdup((char *) val);
+  }
+  else if (!strcmp(name, "group")) {
+    CONFIG_IS_DOUBLE(server_info->group);
+    server_info->group = strdup((char *) val);
+  }
+  else if (!strcmp(name, "motdfile")) {
+    CONFIG_IS_DOUBLE(server_info->motd_file);
+    server_info->motd_file = strdup((char *) val);
+  }
+  else if (!strcmp(name, "pidfile")) {
+    CONFIG_IS_DOUBLE(server_info->pid_file);
+    server_info->pid_file = strdup((char *) val);
+  }
+  else if (!strcmp(name, "publickey")) {
+    char *file_tmp = (char *) val;
+    CONFIG_IS_DOUBLE(server_info->public_key);
+
+    /* Try to load specified file, if fail stop config parsing */
+    if (!silc_pkcs_load_public_key(file_tmp, &server_info->public_key,
+				   SILC_PKCS_FILE_PEM))
+      if (!silc_pkcs_load_public_key(file_tmp, &server_info->public_key,
+				     SILC_PKCS_FILE_BIN)) {
+	SILC_SERVER_LOG_ERROR(("Error: Could not load public key file."));
+	return SILC_CONFIG_EPRINTLINE;
       }
-      config->conn_class->class = atoi(tmp);
-      silc_free(tmp);
-
-      /* Get ping frequency */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      config->conn_class->ping_freq = atoi(tmp);
-      silc_free(tmp);
-
-      /* Get connect frequency */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      config->conn_class->connect_freq = atoi(tmp);
-      silc_free(tmp);
-
-      /* Get max links */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      config->conn_class->max_links = atoi(tmp);
-      silc_free(tmp);
-
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+  }
+  else if (!strcmp(name, "privatekey")) {
+    struct stat st;
+    char *file_tmp = (char *) val;
+    CONFIG_IS_DOUBLE(server_info->private_key);
+
+    /* Check the private key file permissions. */
+    if ((stat(file_tmp, &st)) != -1) {
+      if ((st.st_mode & 0777) != 0600) {
+	SILC_SERVER_LOG_ERROR(("Wrong permissions in private key "
+			      "file \"%s\".  The permissions must be "
+			      "0600.", file_tmp));
+        return SILC_CONFIG_ESILENT;
+      }
+    }
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_LOGGING:
+    /* Try to load specified file, if fail stop config parsing */
+    if (!silc_pkcs_load_private_key(file_tmp, &server_info->private_key,
+				    "", 0, SILC_PKCS_FILE_BIN))
+      if (!silc_pkcs_load_private_key(file_tmp, &server_info->private_key,
+				      "", 0, SILC_PKCS_FILE_PEM)) {
+	SILC_SERVER_LOG_ERROR(("Error: Could not load private key file."));
+	return SILC_CONFIG_EPRINTLINE;
+      }
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  /* Here we need to check if tmp exists because this function handles
+   * misc data (multiple fields and single-only fields) */
+  if (tmp) {
+    silc_free(tmp->server_ip);
+    silc_free(tmp);
+    config->tmp = NULL;
+  }
+  return got_errno;
+}
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->logging);
+SILC_CONFIG_CALLBACK(fetch_logging)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigLogging);
 
-      /* Get log section type and check it */
-      ret = silc_config_get_token(line, &config->logging->logtype);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Log file section not defined\n", 
-		config->filename, pc->linenum);
-	break;
-      }
-      if (strcmp(config->logging->logtype, SILC_CONFIG_SERVER_LF_INFO)
-	  && strcmp(config->logging->logtype, SILC_CONFIG_SERVER_LF_WARNING)
-	  && strcmp(config->logging->logtype, SILC_CONFIG_SERVER_LF_ERROR)
-	  && strcmp(config->logging->logtype, SILC_CONFIG_SERVER_LF_FATAL)) {
-	fprintf(stderr, "%s:%d: Unknown log file section '%s'\n",
-		config->filename, pc->linenum, config->logging->logtype);
-	break;
-      }
+  if (!strcmp(name, "timestamp")) {
+    config->logging_timestamp = *(bool *)val;
+  }
+  else if (!strcmp(name, "quicklogs")) {
+    config->logging_quick = *(bool *)val;
+  }
+  else if (!strcmp(name, "flushdelay")) {
+    int flushdelay = *(int *)val;
+    if (flushdelay < 2) { /* this value was taken from silclog.h (min delay) */
+      SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			    "Invalid flushdelay value, use quicklogs if you "
+			    "want real-time logging."));
+      return SILC_CONFIG_EPRINTLINE;
+    }
+    config->logging_flushdelay = (long) flushdelay;
+  }
 
-      /* Get log filename */
-      ret = silc_config_get_token(line, &config->logging->filename);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	fprintf(stderr, "%s:%d: Log file name not defined\n",
-		config->filename, pc->linenum);
-	break;
-      }
+  /* The following istances happens only in Logging's sub-blocks, a match
+     for the sub-block name means that you should store the filename/maxsize
+     temporary struct to the proper logging channel.
+     If we get a match for "file" or "maxsize" this means that we are inside
+     a sub-sub-block and it is safe to alloc a new tmp. */
+#define FETCH_LOGGING_CHAN(__chan__, __member__)		\
+  else if (!strcmp(name, __chan__)) {				\
+    if (!tmp) return SILC_CONFIG_OK;				\
+    if (!tmp->file) {						\
+      got_errno = SILC_CONFIG_EMISSFIELDS; goto got_err;	\
+    }								\
+    config->__member__ = tmp;					\
+    config->tmp = NULL;						\
+  }
+  FETCH_LOGGING_CHAN("info", logging_info)
+  FETCH_LOGGING_CHAN("warnings", logging_warnings)
+  FETCH_LOGGING_CHAN("errors", logging_errors)
+  FETCH_LOGGING_CHAN("fatals", logging_fatals)
+#undef FETCH_LOGGING_CHAN
+  else if (!strcmp(name, "file")) {
+    SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigLogging);
+    CONFIG_IS_DOUBLE(tmp->file);
+    tmp->file = strdup((char *) val);
+  }
+  else if (!strcmp(name, "size")) {
+    if (!tmp) {
+      config->tmp = silc_calloc(1, sizeof(*tmp));
+      tmp = (SilcServerConfigLogging *) config->tmp;
+    }
+    tmp->maxsize = *(SilcUInt32 *) val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->file);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get max byte size */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	config->logging->maxsize = atoi(tmp);
-	silc_free(tmp);
-      }
+SILC_CONFIG_CALLBACK(fetch_connparam)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigConnParams);
+
+  SERVER_CONFIG_DEBUG(("Received CONNPARAM type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->name) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
+    /* Set defaults */
+    my_set_param_defaults(tmp, &config->param);
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->conn_params);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigConnParams);
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_CLIENT_CONNECTION:
+  if (!strcmp(name, "name")) {
+    CONFIG_IS_DOUBLE(tmp->name);
+    tmp->name = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "connections_max")) {
+    tmp->connections_max = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "connections_max_per_host")) {
+    tmp->connections_max_per_host = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "keepalive_secs")) {
+    tmp->keepalive_secs = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "reconnect_count")) {
+    tmp->reconnect_count = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "reconnect_interval")) {
+    tmp->reconnect_interval = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "reconnect_interval_max")) {
+    tmp->reconnect_interval_max = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "reconnect_keep_trying")) {
+    tmp->reconnect_keep_trying = *(bool *)val;
+  }
+  else if (!strcmp(name, "key_exchange_rekey")) {
+    tmp->key_exchange_rekey = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "key_exchange_pfs")) {
+    tmp->key_exchange_pfs = *(bool *)val;
+  }
+  else if (!strcmp(name, "version_protocol")) {
+    CONFIG_IS_DOUBLE(tmp->version_protocol);
+    tmp->version_protocol = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "version_software")) {
+    CONFIG_IS_DOUBLE(tmp->version_software);
+    tmp->version_software = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "version_software_vendor")) {
+    CONFIG_IS_DOUBLE(tmp->version_software_vendor);;
+    tmp->version_software_vendor =
+      (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "anonymous")) {
+    tmp->anonymous = *(bool *)val;
+  }
+  else if (!strcmp(name, "qos")) {
+    tmp->qos = *(bool *)val;
+  }
+  else if (!strcmp(name, "qos_rate_limit")) {
+    tmp->qos_rate_limit = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "qos_bytes_limit")) {
+    tmp->qos_bytes_limit = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "qos_limit_sec")) {
+    tmp->qos_limit_sec = *(SilcUInt32 *)val;
+  }
+  else if (!strcmp(name, "qos_limit_usec")) {
+    tmp->qos_limit_usec = *(SilcUInt32 *)val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->clients);
+  return SILC_CONFIG_OK;
 
-      /* Get host */
-      ret = silc_config_get_token(line, &config->clients->host);
-      if (ret < 0)
-	break;
-      if (ret == 0)
-	/* Any host */
-	config->clients->host = strdup("*");
+ got_err:
+  silc_free(tmp->name);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get authentication method */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	if (strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD) &&
-	    strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY)) {
-	  fprintf(stderr, "%s:%d: Unknown authentication method '%s'\n",
-		  config->filename, pc->linenum, tmp);
-	  break;
-	}
+SILC_CONFIG_CALLBACK(fetch_client)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigClient);
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD))
-	  config->clients->auth_meth = SILC_PROTOCOL_CONN_AUTH_PASSWORD;
+  SERVER_CONFIG_DEBUG(("Received CLIENT type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY))
-	  config->clients->auth_meth = SILC_PROTOCOL_CONN_AUTH_PUBLIC_KEY;
+  /* Alloc before block checking, because empty sub-blocks are welcome here */
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigClient);
 
-	silc_free(tmp);
-      }
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* empty sub-blocks are welcome */
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->clients);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
 
-      /* Get authentication data */
-      ret = silc_config_get_token(line, &config->clients->auth_data);
-      if (ret < 0)
-	break;
-      if (ret == 0)
-	/* Any host */
-	config->clients->host = strdup("*");
+  /* Identify and save this value */
+  if (!strcmp(name, "host")) {
+    CONFIG_IS_DOUBLE(tmp->host);
+    tmp->host = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "passphrase")) {
+    CONFIG_IS_DOUBLE(tmp->passphrase);
+    if (!my_parse_authdata(SILC_AUTH_PASSWORD, (char *) val,
+			   (void **)&tmp->passphrase,
+			   &tmp->passphrase_len)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "publickey")) {
+    if (!my_parse_authdata(SILC_AUTH_PUBLIC_KEY, (char *) val,
+			   (void **)&tmp->publickeys, NULL)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "publickeydir")) {
+    if (!my_parse_publickeydir((char *) val, (void **)&tmp->publickeys)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "params")) {
+    CONFIG_IS_DOUBLE(tmp->param);
+    tmp->param = my_find_param(config, (char *) val);
+    if (!tmp->param) { /* error message already output */
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->host);
+  CONFIG_FREE_AUTH(tmp);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get port */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret == 0) {
-	config->clients->port = atoi(tmp);
-	silc_free(tmp);
-      }
+SILC_CONFIG_CALLBACK(fetch_admin)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigAdmin);
+
+  SERVER_CONFIG_DEBUG(("Received CLIENT type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->admins);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigAdmin);
 
-      /* Get class number */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	config->clients->class = atoi(tmp);
-	silc_free(tmp);
-      }
+  /* Identify and save this value */
+  if (!strcmp(name, "host")) {
+    CONFIG_IS_DOUBLE(tmp->host);
+    tmp->host = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "user")) {
+    CONFIG_IS_DOUBLE(tmp->user);
+    tmp->user = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "nick")) {
+    CONFIG_IS_DOUBLE(tmp->nick);
+    tmp->nick = (*(char *)val ? strdup((char *) val) : NULL);
+  }
+  else if (!strcmp(name, "passphrase")) {
+    CONFIG_IS_DOUBLE(tmp->passphrase);
+    if (!my_parse_authdata(SILC_AUTH_PASSWORD, (char *) val,
+			   (void **)&tmp->passphrase,
+			   &tmp->passphrase_len)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "publickey")) {
+    if (!my_parse_authdata(SILC_AUTH_PUBLIC_KEY, (char *) val,
+			   (void **)&tmp->publickeys, NULL)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "publickeydir")) {
+    if (!my_parse_publickeydir((char *) val, (void **)&tmp->publickeys)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->host);
+  silc_free(tmp->user);
+  silc_free(tmp->nick);
+  CONFIG_FREE_AUTH(tmp);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+SILC_CONFIG_CALLBACK(fetch_deny)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigDeny);
+
+  SERVER_CONFIG_DEBUG(("Received DENY type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->reason) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_SERVER_CONNECTION:
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->denied);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigDeny);
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->servers);
+  /* Identify and save this value */
+  if (!strcmp(name, "host")) {
+    CONFIG_IS_DOUBLE(tmp->host);
+    tmp->host = (*(char *)val ? strdup((char *) val) : strdup("*"));
+  }
+  else if (!strcmp(name, "reason")) {
+    CONFIG_IS_DOUBLE(tmp->reason);
+    tmp->reason = strdup((char *) val);
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->host);
+  silc_free(tmp->reason);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get host */
-      ret = silc_config_get_token(line, &config->servers->host);
-      if (ret < 0)
-	break;
-      if (ret == 0)
-	/* Any host */
-	config->servers->host = strdup("*");
+SILC_CONFIG_CALLBACK(fetch_server)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigServer);
+
+  SERVER_CONFIG_DEBUG(("Received SERVER type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    /* check the temporary struct's fields */
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->host) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-      /* Get authentication method */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	if (strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD) &&
-	    strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY)) {
-	  fprintf(stderr, "%s:%d: Unknown authentication method '%s'\n",
-		  config->filename, pc->linenum, tmp);
-	  break;
-	}
+    /* the temporary struct is ok, append it to the list */
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->servers);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigServer);
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD))
-	  config->servers->auth_meth = SILC_PROTOCOL_CONN_AUTH_PASSWORD;
+  /* Identify and save this value */
+  if (!strcmp(name, "host")) {
+    CONFIG_IS_DOUBLE(tmp->host);
+    tmp->host = (*(char *)val ? strdup((char *) val) : strdup("*"));
+  }
+  else if (!strcmp(name, "passphrase")) {
+    CONFIG_IS_DOUBLE(tmp->passphrase);
+    if (!my_parse_authdata(SILC_AUTH_PASSWORD, (char *) val,
+			   (void **)&tmp->passphrase,
+			   &tmp->passphrase_len)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "publickey")) {
+    CONFIG_IS_DOUBLE(tmp->publickeys);
+    if (!my_parse_authdata(SILC_AUTH_PUBLIC_KEY, (char *) val,
+			   (void **)&tmp->publickeys, NULL)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "params")) {
+    CONFIG_IS_DOUBLE(tmp->param);
+    tmp->param = my_find_param(config, (char *) val);
+    if (!tmp->param) { /* error message already output */
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "backup")) {
+    tmp->backup_router = *(bool *)val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY))
-	  config->servers->auth_meth = SILC_PROTOCOL_CONN_AUTH_PUBLIC_KEY;
+  return SILC_CONFIG_OK;
 
-	silc_free(tmp);
-      }
+ got_err:
+  silc_free(tmp->host);
+  CONFIG_FREE_AUTH(tmp);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get authentication data */
-      ret = silc_config_get_token(line, &config->servers->auth_data);
-      if (ret < 0)
-	break;
+SILC_CONFIG_CALLBACK(fetch_router)
+{
+  SILC_SERVER_CONFIG_SECTION_INIT(SilcServerConfigRouter);
+
+  SERVER_CONFIG_DEBUG(("Received ROUTER type=%d name=\"%s\" (val=%x)",
+		       type, name, context));
+  if (type == SILC_CONFIG_ARG_BLOCK) {
+    if (!tmp) /* discard empty sub-blocks */
+      return SILC_CONFIG_OK;
+    if (!tmp->host) {
+      got_errno = SILC_CONFIG_EMISSFIELDS;
+      goto got_err;
+    }
 
-      /* Get port */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	config->servers->port = atoi(tmp);
-	silc_free(tmp);
-      }
+    SILC_SERVER_CONFIG_LIST_APPENDTMP(config->routers);
+    config->tmp = NULL;
+    return SILC_CONFIG_OK;
+  }
+  SILC_SERVER_CONFIG_ALLOCTMP(SilcServerConfigRouter);
 
-      /* Get version */
-      ret = silc_config_get_token(line, &config->servers->version);
-      if (ret < 0)
-	break;
+  /* Identify and save this value */
+  if (!strcmp(name, "host")) {
+    CONFIG_IS_DOUBLE(tmp->host);
+    tmp->host = strdup((char *) val);
+  }
+  else if (!strcmp(name, "port")) {
+    int port = *(int *)val;
+    if ((port <= 0) || (port > 65535)) {
+      SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			     "Invalid port number!"));
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+    tmp->port = (SilcUInt16) port;
+  }
+  else if (!strcmp(name, "passphrase")) {
+    CONFIG_IS_DOUBLE(tmp->passphrase);
+    if (!my_parse_authdata(SILC_AUTH_PASSWORD, (char *) val,
+			   (void **)&tmp->passphrase,
+			   &tmp->passphrase_len)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "publickey")) {
+    CONFIG_IS_DOUBLE(tmp->publickeys);
+    if (!my_parse_authdata(SILC_AUTH_PUBLIC_KEY, (char *) val,
+			   (void **)&tmp->publickeys, NULL)) {
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "params")) {
+    CONFIG_IS_DOUBLE(tmp->param);
+    tmp->param = my_find_param(config, (char *) val);
+    if (!tmp->param) { /* error message already output */
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+  }
+  else if (!strcmp(name, "initiator")) {
+    tmp->initiator = *(bool *)val;
+  }
+  else if (!strcmp(name, "backuphost")) {
+    CONFIG_IS_DOUBLE(tmp->backup_replace_ip);
+    tmp->backup_replace_ip = (*(char *)val ? strdup((char *) val) :
+			      strdup("*"));
+    tmp->backup_router = TRUE;
+  }
+  else if (!strcmp(name, "backupport")) {
+    int port = *(int *)val;
+    if ((port <= 0) || (port > 65535)) {
+      SILC_SERVER_LOG_ERROR(("Error while parsing config file: "
+			     "Invalid port number!"));
+      got_errno = SILC_CONFIG_EPRINTLINE;
+      goto got_err;
+    }
+    tmp->backup_replace_port = (SilcUInt16) port;
+  }
+  else if (!strcmp(name, "backuplocal")) {
+    tmp->backup_local = *(bool *)val;
+  }
+  else
+    return SILC_CONFIG_EINTERNAL;
+
+  return SILC_CONFIG_OK;
+
+ got_err:
+  silc_free(tmp->host);
+  silc_free(tmp->backup_replace_ip);
+  CONFIG_FREE_AUTH(tmp);
+  silc_free(tmp);
+  config->tmp = NULL;
+  return got_errno;
+}
 
-      /* Get class number */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	config->servers->class = atoi(tmp);
-	silc_free(tmp);
-      }
+/* known config options tables */
+static const SilcConfigTable table_general[] = {
+  { "module_path",		SILC_CONFIG_ARG_STRE,	fetch_generic,	NULL },
+  { "prefer_passphrase_auth",	SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "require_reverse_lookup",	SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "connections_max",		SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "connections_max_per_host", SILC_CONFIG_ARG_INT,    fetch_generic,	NULL },
+  { "keepalive_secs",		SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "reconnect_count",		SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "reconnect_interval",      	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "reconnect_interval_max",   SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "reconnect_keep_trying",	SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "key_exchange_rekey",	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "key_exchange_pfs",		SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "channel_rekey_secs",	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "key_exchange_timeout",   	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "conn_auth_timeout",   	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "version_protocol",	        SILC_CONFIG_ARG_STR,	fetch_generic,	NULL },
+  { "version_software",		SILC_CONFIG_ARG_STR,	fetch_generic,	NULL },
+  { "version_software_vendor",	SILC_CONFIG_ARG_STR,	fetch_generic,	NULL },
+  { "detach_disabled",    	SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "detach_timeout",    	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos",    	                SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "qos_rate_limit",    	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos_bytes_limit",    	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos_limit_sec",    	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos_limit_usec",    	SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "debug_string",    		SILC_CONFIG_ARG_STR,	fetch_generic,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+static const SilcConfigTable table_cipher[] = {
+  { "name",		SILC_CONFIG_ARG_STR,	fetch_cipher,	NULL },
+  { "module",		SILC_CONFIG_ARG_STRE,	fetch_cipher,	NULL },
+  { "keylength",	SILC_CONFIG_ARG_INT,	fetch_cipher,	NULL },
+  { "blocklength",	SILC_CONFIG_ARG_INT,	fetch_cipher,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_ROUTER_CONNECTION:
+static const SilcConfigTable table_hash[] = {
+  { "name",		SILC_CONFIG_ARG_STR,	fetch_hash,	NULL },
+  { "module",		SILC_CONFIG_ARG_STRE,	fetch_hash,	NULL },
+  { "blocklength",	SILC_CONFIG_ARG_INT,	fetch_hash,	NULL },
+  { "digestlength",	SILC_CONFIG_ARG_INT,	fetch_hash,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->routers);
+static const SilcConfigTable table_hmac[] = {
+  { "name",		SILC_CONFIG_ARG_STR,	fetch_hmac,	NULL },
+  { "hash",		SILC_CONFIG_ARG_STR,	fetch_hmac,	NULL },
+  { "maclength",	SILC_CONFIG_ARG_INT,	fetch_hmac,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get host */
-      ret = silc_config_get_token(line, &config->routers->host);
-      if (ret < 0)
-	break;
-      //      if (ret == 0)
-      ///* Any host */
-      //	config->routers->host = strdup("*");
+static const SilcConfigTable table_pkcs[] = {
+  { "name",		SILC_CONFIG_ARG_STR,	fetch_pkcs,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get authentication method */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	if (strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD) &&
-	    strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY)) {
-	  fprintf(stderr, "%s:%d: Unknown authentication method '%s'\n",
-		  config->filename, pc->linenum, tmp);
-	  break;
-	}
+static const SilcConfigTable table_serverinfo_c[] = {
+  { "ip",		SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "port",		SILC_CONFIG_ARG_INT,	fetch_serverinfo, NULL},
+  { 0, 0, 0, 0 }
+};
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD))
-	  config->routers->auth_meth = SILC_PROTOCOL_CONN_AUTH_PASSWORD;
+static const SilcConfigTable table_serverinfo[] = {
+  { "hostname",		SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "primary",		SILC_CONFIG_ARG_BLOCK,	fetch_serverinfo, table_serverinfo_c},
+  { "secondary",	SILC_CONFIG_ARG_BLOCK,	fetch_serverinfo, table_serverinfo_c},
+  { "servertype",	SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "location",		SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "admin",		SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "adminemail",	SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "user",		SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "group",		SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "publickey",	SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "privatekey",	SILC_CONFIG_ARG_STR,	fetch_serverinfo, NULL},
+  { "motdfile",		SILC_CONFIG_ARG_STRE,	fetch_serverinfo, NULL},
+  { "pidfile",		SILC_CONFIG_ARG_STRE,	fetch_serverinfo, NULL},
+  { 0, 0, 0, 0 }
+};
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY))
-	  config->routers->auth_meth = SILC_PROTOCOL_CONN_AUTH_PUBLIC_KEY;
+static const SilcConfigTable table_logging_c[] = {
+  { "file",		SILC_CONFIG_ARG_STR,	fetch_logging,	NULL },
+  { "size",		SILC_CONFIG_ARG_SIZE,	fetch_logging,	NULL },
+/*{ "quicklog",		SILC_CONFIG_ARG_NONE,	fetch_logging,	NULL }, */
+  { 0, 0, 0, 0 }
+};
 
-	silc_free(tmp);
-      }
+static const SilcConfigTable table_logging[] = {
+  { "timestamp",	SILC_CONFIG_ARG_TOGGLE,	fetch_logging,	NULL },
+  { "quicklogs",	SILC_CONFIG_ARG_TOGGLE,	fetch_logging,	NULL },
+  { "flushdelay",	SILC_CONFIG_ARG_INT,	fetch_logging,	NULL },
+  { "info",		SILC_CONFIG_ARG_BLOCK,	fetch_logging,	table_logging_c },
+  { "warnings",		SILC_CONFIG_ARG_BLOCK,	fetch_logging,	table_logging_c },
+  { "errors",		SILC_CONFIG_ARG_BLOCK,	fetch_logging,	table_logging_c },
+  { "fatals",		SILC_CONFIG_ARG_BLOCK,	fetch_logging,	table_logging_c },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get authentication data */
-      ret = silc_config_get_token(line, &config->routers->auth_data);
-      if (ret < 0)
-	break;
+static const SilcConfigTable table_connparam[] = {
+  { "name",		       SILC_CONFIG_ARG_STR,    fetch_connparam, NULL },
+  { "require_reverse_lookup",  SILC_CONFIG_ARG_TOGGLE, fetch_connparam,	NULL },
+  { "connections_max",	       SILC_CONFIG_ARG_INT,    fetch_connparam, NULL },
+  { "connections_max_per_host",SILC_CONFIG_ARG_INT,    fetch_connparam, NULL },
+  { "keepalive_secs",	       SILC_CONFIG_ARG_INT,    fetch_connparam, NULL },
+  { "reconnect_count",	       SILC_CONFIG_ARG_INT,    fetch_connparam, NULL },
+  { "reconnect_interval",      SILC_CONFIG_ARG_INT,    fetch_connparam,	NULL },
+  { "reconnect_interval_max",  SILC_CONFIG_ARG_INT,    fetch_connparam,	NULL },
+  { "reconnect_keep_trying",   SILC_CONFIG_ARG_TOGGLE, fetch_connparam,	NULL },
+  { "key_exchange_rekey",      SILC_CONFIG_ARG_INT,    fetch_connparam,	NULL },
+  { "key_exchange_pfs",	       SILC_CONFIG_ARG_TOGGLE, fetch_connparam,	NULL },
+  { "version_protocol",	       SILC_CONFIG_ARG_STR,    fetch_connparam,	NULL },
+  { "version_software",	       SILC_CONFIG_ARG_STR,    fetch_connparam,	NULL },
+  { "version_software_vendor", SILC_CONFIG_ARG_STR,    fetch_connparam,	NULL },
+  { "anonymous",               SILC_CONFIG_ARG_TOGGLE, fetch_connparam,	NULL },
+  { "qos",    	               SILC_CONFIG_ARG_TOGGLE,	fetch_generic,	NULL },
+  { "qos_rate_limit",          SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos_bytes_limit",         SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos_limit_sec",           SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { "qos_limit_usec",          SILC_CONFIG_ARG_INT,	fetch_generic,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get port */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	config->routers->port = atoi(tmp);
-	silc_free(tmp);
-      }
+static const SilcConfigTable table_client[] = {
+  { "host",		SILC_CONFIG_ARG_STRE,	fetch_client,	NULL },
+  { "passphrase",	SILC_CONFIG_ARG_STR,	fetch_client,	NULL },
+  { "publickey",	SILC_CONFIG_ARG_STR,	fetch_client,	NULL },
+  { "publickeydir",	SILC_CONFIG_ARG_STR,	fetch_client,	NULL },
+  { "params",		SILC_CONFIG_ARG_STR,	fetch_client,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get version */
-      ret = silc_config_get_token(line, &config->routers->version);
-      if (ret < 0)
-	break;
+static const SilcConfigTable table_admin[] = {
+  { "host",		SILC_CONFIG_ARG_STRE,	fetch_admin,	NULL },
+  { "user",		SILC_CONFIG_ARG_STRE,	fetch_admin,	NULL },
+  { "nick",		SILC_CONFIG_ARG_STRE,	fetch_admin,	NULL },
+  { "passphrase",	SILC_CONFIG_ARG_STR,	fetch_admin,	NULL },
+  { "publickey",	SILC_CONFIG_ARG_STR,	fetch_admin,	NULL },
+  { "publickeydir",	SILC_CONFIG_ARG_STR,	fetch_admin,	NULL },
+  { "port",		SILC_CONFIG_ARG_INT,	fetch_admin,	NULL },
+  { "params",		SILC_CONFIG_ARG_STR,	fetch_admin,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get class number */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	config->routers->class = atoi(tmp);
-	silc_free(tmp);
-      }
+static const SilcConfigTable table_deny[] = {
+  { "host",		SILC_CONFIG_ARG_STRE,	fetch_deny,	NULL },
+  { "reason",		SILC_CONFIG_ARG_STR,	fetch_deny,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
+static const SilcConfigTable table_serverconn[] = {
+  { "host",		SILC_CONFIG_ARG_STRE,	fetch_server,	NULL },
+  { "passphrase",	SILC_CONFIG_ARG_STR,	fetch_server,	NULL },
+  { "publickey",	SILC_CONFIG_ARG_STR,	fetch_server,	NULL },
+  { "params",		SILC_CONFIG_ARG_STR,	fetch_server,	NULL },
+  { "backup",		SILC_CONFIG_ARG_TOGGLE,	fetch_server,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_ADMIN_CONNECTION:
+static const SilcConfigTable table_routerconn[] = {
+  { "host",		SILC_CONFIG_ARG_STRE,	fetch_router,	NULL },
+  { "port",		SILC_CONFIG_ARG_INT,	fetch_router,	NULL },
+  { "passphrase",	SILC_CONFIG_ARG_STR,	fetch_router,	NULL },
+  { "publickey",	SILC_CONFIG_ARG_STR,	fetch_router,	NULL },
+  { "params",		SILC_CONFIG_ARG_STR,	fetch_router,	NULL },
+  { "initiator",	SILC_CONFIG_ARG_TOGGLE,	fetch_router,	NULL },
+  { "backuphost",	SILC_CONFIG_ARG_STRE,	fetch_router,	NULL },
+  { "backupport",	SILC_CONFIG_ARG_INT,	fetch_router,	NULL },
+  { "backuplocal",	SILC_CONFIG_ARG_TOGGLE,	fetch_router,	NULL },
+  { 0, 0, 0, 0 }
+};
 
-      SILC_SERVER_CONFIG_LIST_ALLOC(config->admins);
+static const SilcConfigTable table_main[] = {
+  { "cipher",		SILC_CONFIG_ARG_BLOCK,	fetch_cipher,  table_cipher },
+  { "hash",		SILC_CONFIG_ARG_BLOCK,	fetch_hash,    table_hash },
+  { "hmac",		SILC_CONFIG_ARG_BLOCK,	fetch_hmac,    table_hmac },
+  { "pkcs",		SILC_CONFIG_ARG_BLOCK,	fetch_pkcs,    table_pkcs },
+  { "general",		SILC_CONFIG_ARG_BLOCK,	NULL,	       table_general },
+  { "serverinfo",	SILC_CONFIG_ARG_BLOCK,	fetch_serverinfo, table_serverinfo },
+  { "logging",		SILC_CONFIG_ARG_BLOCK,	NULL,	       table_logging },
+  { "connectionparams",	SILC_CONFIG_ARG_BLOCK,	fetch_connparam, table_connparam },
+  { "client",		SILC_CONFIG_ARG_BLOCK,	fetch_client,  table_client },
+  { "admin",		SILC_CONFIG_ARG_BLOCK,	fetch_admin,   table_admin },
+  { "deny",		SILC_CONFIG_ARG_BLOCK,	fetch_deny,    table_deny },
+  { "serverconnection",	SILC_CONFIG_ARG_BLOCK,	fetch_server,  table_serverconn },
+  { "routerconnection",	SILC_CONFIG_ARG_BLOCK,	fetch_router,  table_routerconn },
+  { 0, 0, 0, 0 }
+};
 
-      /* Get host */
-      ret = silc_config_get_token(line, &config->admins->host);
-      if (ret < 0)
-	break;
-      if (ret == 0)
-	/* Any host */
-	config->admins->host = strdup("*");
+/* Set default values to stuff that was not configured. */
 
-      /* Get authentication method */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
-	break;
-      if (ret) {
-	if (strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD) &&
-	    strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY)) {
-	  fprintf(stderr, "%s:%d: Unknown authentication method '%s'\n",
-		  config->filename, pc->linenum, tmp);
-	  break;
-	}
+static void silc_server_config_set_defaults(SilcServerConfig config)
+{
+  my_set_param_defaults(&config->param, NULL);
+
+  config->channel_rekey_secs = (config->channel_rekey_secs ?
+				config->channel_rekey_secs :
+				SILC_SERVER_CHANNEL_REKEY);
+  config->key_exchange_timeout = (config->key_exchange_timeout ?
+				  config->key_exchange_timeout :
+				  SILC_SERVER_SKE_TIMEOUT);
+  config->conn_auth_timeout = (config->conn_auth_timeout ?
+			       config->conn_auth_timeout :
+			       SILC_SERVER_CONNAUTH_TIMEOUT);
+}
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PASSWD))
-	  config->admins->auth_meth = SILC_PROTOCOL_CONN_AUTH_PASSWORD;
+/* Check for correctness of the configuration */
 
-	if (!strcmp(tmp, SILC_CONFIG_SERVER_AUTH_METH_PUBKEY))
-	  config->admins->auth_meth = SILC_PROTOCOL_CONN_AUTH_PUBLIC_KEY;
+static bool silc_server_config_check(SilcServerConfig config)
+{
+  bool ret = TRUE;
+  SilcServerConfigServer *s;
+  SilcServerConfigRouter *r;
+  bool b = FALSE;
+
+  /* ServerConfig is mandatory */
+  if (!config->server_info) {
+    SILC_SERVER_LOG_ERROR(("\nError: Missing mandatory block `ServerInfo'"));
+    ret = FALSE;
+  }
 
-	silc_free(tmp);
-      }
+  /* RouterConnection sanity checks */
 
-      /* Get authentication data */
-      ret = silc_config_get_token(line, &config->admins->auth_data);
-      if (ret < 0)
-	break;
+  if (config->routers && config->routers->backup_router == TRUE &&
+      !config->servers) {
+    SILC_SERVER_LOG_ERROR((
+         "\nError: First RouterConnection block must be primary router "
+	 "connection. You have marked it incorrectly as backup router."));
+    ret = FALSE;
+  }
+  if (config->routers && config->routers->initiator == FALSE &&
+      config->routers->backup_router == FALSE) {
+    SILC_SERVER_LOG_ERROR((
+         "\nError: First RouterConnection block must be primary router "
+	 "connection and it must be marked as Initiator."));
+    ret = FALSE;
+  }
+  if (config->routers && config->routers->backup_router == TRUE &&
+      !config->servers && !config->routers->next) {
+    SILC_SERVER_LOG_ERROR((
+         "\nError: You have configured backup router but not primary router. "
+	 "If backup router is configured also primary router must be "
+	 "configured."));
+    ret = FALSE;
+  }
 
-      /* Get nickname */
-      ret = silc_config_get_token(line, &config->admins->nickname);
-      if (ret < 0)
-	break;
+  /* Backup router sanity checks */
 
-      /* Get class number */
-      ret = silc_config_get_token(line, &tmp);
-      if (ret < 0)
+  for (r = config->routers; r; r = r->next) {
+    if (r->backup_router && !strcmp(r->host, r->backup_replace_ip)) {
+      SILC_SERVER_LOG_ERROR((
+          "\nError: Backup router connection incorrectly configured to use "
+	  "primary and backup router as same host `%s'. They must not be "
+	  "same host.", r->host));
+      ret = FALSE;
+    }
+  }
+  
+  /* ServerConnection sanity checks */
+  
+  for (s = config->servers; s; s = s->next) {
+    if (s->backup_router) {
+      b = TRUE;
+      break;
+    }
+  }
+  if (b) {
+    for (s = config->servers; s; s = s->next) {
+      if (!s->backup_router) {
+	SILC_SERVER_LOG_ERROR((
+          "\nError: Your server is backup router but not all ServerConnection "
+	  "blocks were marked as backup connections. They all must be "
+	  "marked as backup connections."));
+	ret = FALSE;
 	break;
-      if (ret) {
-	config->admins->class = atoi(tmp);
-	silc_free(tmp);
       }
+    }
+  }
 
-      check = TRUE;
-      checkmask |= (1L << pc->section->type);
-      break;
-
-    case SILC_CONFIG_SERVER_SECTION_TYPE_DENY_CONNECTION:
-      /* Not implemented yet */
-      check = TRUE;
-      break;
+  return ret;
+}
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_REDIRECT_CLIENT:
-      /* Not implemented yet */
-      check = TRUE;
-      break;
+/* Allocates a new configuration object, opens configuration file and
+   parses it. The parsed data is returned to the newly allocated
+   configuration object. The SilcServerConfig must be freed by calling
+   the silc_server_config_destroy function. */
 
-    case SILC_CONFIG_SERVER_SECTION_TYPE_NONE:
-    default:
-      /* Error */
-      break;
-    }
+SilcServerConfig silc_server_config_alloc(const char *filename)
+{
+  SilcServerConfig config_new;
+  SilcConfigEntity ent;
+  SilcConfigFile *file;
+  int ret;
+  SILC_LOG_DEBUG(("Loading config data from `%s'", filename));
+
+  /* alloc a config object */
+  config_new = silc_calloc(1, sizeof(*config_new));
+  if (!config_new)
+    return NULL;
 
-    /* Check for error */
-    if (check == FALSE) {
-      /* Line could not be parsed */
-      fprintf(stderr, "%s:%d: Parse error\n", config->filename, pc->linenum);
-      break;
-    }
+  /* general config defaults */
+  config_new->refcount = 1;
+  config_new->logging_timestamp = TRUE;
 
-    pc = pc->next;
-    /* XXXX */
-    //    silc_free(pc->prev);
-    //    pc->prev = NULL;
+  /* obtain a config file object */
+  file = silc_config_open(filename);
+  if (!file) {
+    SILC_SERVER_LOG_ERROR(("\nError: can't open config file `%s'",
+			   filename));
+    return NULL;
   }
 
-  if (check == FALSE)
-    return FALSE;;
+  /* obtain a SilcConfig entity, we can use it to start the parsing */
+  ent = silc_config_init(file);
+
+  /* load the known configuration options, give our empty object as context */
+  silc_config_register_table(ent, table_main, (void *) config_new);
+
+  /* enter the main parsing loop.  When this returns, we have the parsing
+   * result and the object filled (or partially, in case of errors). */
+  ret = silc_config_main(ent);
+  SILC_LOG_DEBUG(("Parser returned [ret=%d]: %s", ret,
+		  silc_config_strerror(ret)));
+
+  /* Check if the parser returned errors */
+  if (ret) {
+    /* handle this special error return which asks to quietly return */
+    if (ret != SILC_CONFIG_ESILENT) {
+      char *linebuf, *filename = silc_config_get_filename(file);
+      SilcUInt32 line = silc_config_get_line(file);
+      if (ret != SILC_CONFIG_EPRINTLINE)
+        SILC_SERVER_LOG_ERROR(("Error while parsing config file: %s.",
+			       silc_config_strerror(ret)));
+      linebuf = silc_config_read_line(file, line);
+      if (linebuf) {
+	SILC_SERVER_LOG_ERROR(("  file %s line %lu:  %s\n", filename,
+			       line, linebuf));
+	silc_free(linebuf);
+      }
+    }
+    silc_server_config_destroy(config_new);
+    silc_config_close(file);
+    return NULL;
+  }
 
-  /* Check that all mandatory sections really were found. If not, the server
-     cannot function and we return error. */
-  ret = silc_config_server_check_sections(checkmask);
-  if (ret == FALSE) {
-    /* XXX */
+  /* close (destroy) the file object */
+  silc_config_close(file);
 
+  /* Check the configuration */
+  if (!silc_server_config_check(config_new)) {
+    silc_server_config_destroy(config_new);
+    return NULL;
   }
-  
-  /* Before returning all the lists in the config object must be set
-     to their first values (the last value is first here). */
-  while (config->cipher && config->cipher->prev)
-    config->cipher = config->cipher->prev;
-  while (config->pkcs && config->pkcs->prev)
-    config->pkcs = config->pkcs->prev;
-  while (config->hash_func && config->hash_func->prev)
-    config->hash_func = config->hash_func->prev;
-  while (config->listen_port && config->listen_port->prev)
-    config->listen_port = config->listen_port->prev;
-  while (config->logging && config->logging->prev)
-    config->logging = config->logging->prev;
-  while (config->conn_class && config->conn_class->prev)
-    config->conn_class = config->conn_class->prev;
-  while (config->clients && config->clients->prev)
-    config->clients = config->clients->prev;
-  while (config->servers && config->servers->prev)
-    config->servers = config->servers->prev;
-  while (config->routers && config->routers->prev)
-    config->routers = config->routers->prev;
-  
-  SILC_LOG_DEBUG(("Done"));
-  
-  return TRUE;
+
+  /* Set default to configuration parameters */
+  silc_server_config_set_defaults(config_new);
+
+  return config_new;
 }
 
-/* This function checks that the mask sent as argument includes all the 
-   sections that are mandatory in SILC server. */
+/* Increments the reference counter of a config object */
 
-int silc_config_server_check_sections(unsigned int checkmask)
+void silc_server_config_ref(SilcServerConfigRef *ref, SilcServerConfig config,
+			    void *ref_ptr)
 {
-  if (!(checkmask & (1L << SILC_CONFIG_SERVER_SECTION_TYPE_SERVER_INFO))) {
-    
-    return FALSE;
-  }
-  if (!(checkmask & (1L << SILC_CONFIG_SERVER_SECTION_TYPE_ADMIN_INFO))) {
-    
-    return FALSE;
-  }
-  if (!(checkmask & (1L << SILC_CONFIG_SERVER_SECTION_TYPE_LISTEN_PORT))) {
-    
-    return FALSE;
-  }
-  if (!(checkmask & (1L << SILC_CONFIG_SERVER_SECTION_TYPE_CLIENT_CONNECTION))) {
-    
-    return FALSE;
-  }
-  if (!(checkmask 
-	& (1L << SILC_CONFIG_SERVER_SECTION_TYPE_SERVER_CONNECTION))) {
-    
-    return FALSE;
-  }
-  if (!(checkmask 
-	& (1L << SILC_CONFIG_SERVER_SECTION_TYPE_ROUTER_CONNECTION))) {
-    
-    return FALSE;
+  if (ref_ptr) {
+    config->refcount++;
+    ref->config = config;
+    ref->ref_ptr = ref_ptr;
+    SILC_LOG_DEBUG(("Referencing config [%p] refcnt %d->%d", config,
+		    config->refcount - 1, config->refcount));
   }
+}
 
-  return TRUE;
+/* Decrements the reference counter of a config object.  If the counter
+   reaches 0, the config object is destroyed. */
+
+void silc_server_config_unref(SilcServerConfigRef *ref)
+{
+  if (ref->ref_ptr)
+    silc_server_config_destroy(ref->config);
 }
 
-/* Sets log files where log messages is saved by the server. */
+/* Destroy a config object with all his children lists */
 
-void silc_config_server_setlogfiles(SilcConfigServer config)
+void silc_server_config_destroy(SilcServerConfig config)
 {
-  SilcConfigServerSectionLogging *log;
-  char *info, *warning, *error, *fatal;
-  unsigned int info_size, warning_size, error_size, fatal_size;
-
-  SILC_LOG_DEBUG(("Setting configured log file names"));
-
-  /* Set default files before checking configuration */
-  info = SILC_LOG_FILE_INFO;
-  warning = SILC_LOG_FILE_WARNING;
-  error = SILC_LOG_FILE_ERROR;
-  fatal = SILC_LOG_FILE_FATAL;
-  info_size = 0;
-  warning_size = 0;
-  error_size = 0;
-  fatal_size = 0;
-
-  log = config->logging;
-  while(log) {
-    if (!strcmp(log->logtype, SILC_CONFIG_SERVER_LF_INFO)) {
-      info = log->filename;
-      info_size = log->maxsize;
+  void *tmp;
+
+  config->refcount--;
+  SILC_LOG_DEBUG(("Unreferencing config [%p] refcnt %d->%d", config,
+		  config->refcount + 1, config->refcount));
+  if (config->refcount > 0)
+    return;
+
+  SILC_LOG_DEBUG(("Freeing config context"));
+
+  /* Destroy general config stuff */
+  silc_free(config->module_path);
+  silc_free(config->debug_string);
+  silc_free(config->param.version_protocol);
+  silc_free(config->param.version_software);
+  silc_free(config->param.version_software_vendor);
+
+  /* Destroy Logging channels */
+  if (config->logging_info)
+    silc_free(config->logging_info->file);
+  if (config->logging_warnings)
+    silc_free(config->logging_warnings->file);
+  if (config->logging_errors)
+    silc_free(config->logging_errors->file);
+  if (config->logging_fatals)
+    silc_free(config->logging_fatals->file);
+  silc_free(config->logging_info);
+  silc_free(config->logging_warnings);
+  silc_free(config->logging_errors);
+  silc_free(config->logging_fatals);
+
+  /* Destroy the ServerInfo struct */
+  if (config->server_info) {
+    register SilcServerConfigServerInfo *si = config->server_info;
+    silc_free(si->server_name);
+    if (si->primary) {
+      silc_free(si->primary->server_ip);
+      silc_free(si->primary);
     }
-    if (!strcmp(log->logtype, SILC_CONFIG_SERVER_LF_WARNING)) {
-      warning = log->filename;
-      warning_size = log->maxsize;
-    }
-    if (!strcmp(log->logtype, SILC_CONFIG_SERVER_LF_ERROR)) {
-      error = log->filename;
-      error_size = log->maxsize;
-    }
-    if (!strcmp(log->logtype, SILC_CONFIG_SERVER_LF_FATAL)) {
-      fatal = log->filename;
-      fatal_size = log->maxsize;
+    SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigServerInfoInterface,
+				  si->secondary)
+      silc_free(di->server_ip);
+      silc_free(di);
     }
+    silc_free(si->server_type);
+    silc_free(si->location);
+    silc_free(si->admin);
+    silc_free(si->email);
+    silc_free(si->user);
+    silc_free(si->group);
+    silc_free(si->motd_file);
+    silc_free(si->pid_file);
+    silc_pkcs_public_key_free(si->public_key);
+    silc_pkcs_private_key_free(si->private_key);
+    silc_free(si);
+  }
+
+  /* Now let's destroy the lists */
 
-    log = log->next;
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigCipher,
+				  config->cipher)
+    silc_free(di->name);
+    silc_free(di->module);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigHash, config->hash)
+    silc_free(di->name);
+    silc_free(di->module);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigHmac, config->hmac)
+    silc_free(di->name);
+    silc_free(di->hash);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigPkcs, config->pkcs)
+    silc_free(di->name);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigConnParams,
+                                  config->conn_params)
+    silc_free(di->name);
+    silc_free(di->version_protocol);
+    silc_free(di->version_software);
+    silc_free(di->version_software_vendor);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigClient, config->clients)
+    silc_free(di->host);
+    CONFIG_FREE_AUTH(di);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigAdmin, config->admins)
+    silc_free(di->host);
+    silc_free(di->user);
+    silc_free(di->nick);
+    CONFIG_FREE_AUTH(di);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigDeny, config->denied)
+    silc_free(di->host);
+    silc_free(di->reason);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigServer,
+				  config->servers)
+    silc_free(di->host);
+    CONFIG_FREE_AUTH(di);
+    silc_free(di);
+  }
+  SILC_SERVER_CONFIG_LIST_DESTROY(SilcServerConfigRouter,
+				  config->routers)
+    silc_free(di->host);
+    silc_free(di->backup_replace_ip);
+    CONFIG_FREE_AUTH(di);
+    silc_free(di);
   }
 
-  silc_log_set_files(info, info_size, warning, warning_size,
-		     error, error_size, fatal, fatal_size);
+  memset(config, 'F', sizeof(*config));
+  silc_free(config);
 }
 
 /* Registers configured ciphers. These can then be allocated by the
    server when needed. */
 
-void silc_config_server_register_ciphers(SilcConfigServer config)
+bool silc_server_config_register_ciphers(SilcServer server)
 {
-  SilcConfigServerSectionAlg *alg;
-  SilcServer server = (SilcServer)config->server;
+  SilcServerConfig config = server->config;
+  SilcServerConfigCipher *cipher = config->cipher;
+  char *module_path = config->module_path;
 
   SILC_LOG_DEBUG(("Registering configured ciphers"));
 
-  alg = config->cipher;
-  while(alg) {
-
-    if (!alg->sim_name) {
-      /* Crypto module is supposed to be built in. Nothing to be done
-	 here except to test that the cipher really is built in. */
-      SilcCipher tmp = NULL;
+  if (!cipher) /* any cipher in the config file? */
+    return FALSE;
 
-      if (silc_cipher_alloc(alg->alg_name, &tmp) == FALSE) {
-	SILC_LOG_ERROR(("Unsupported cipher `%s'", alg->alg_name));
+  while (cipher) {
+    /* if there isn't a module_path OR there isn't a module sim name try to
+     * use buil-in functions */
+    if (!module_path || !cipher->module) {
+      int i;
+      for (i = 0; silc_default_ciphers[i].name; i++)
+	if (!strcmp(silc_default_ciphers[i].name, cipher->name)) {
+	  silc_cipher_register((SilcCipherObject *)&silc_default_ciphers[i]);
+	  break;
+	}
+      if (!silc_cipher_is_supported(cipher->name)) {
+	SILC_LOG_ERROR(("Unknown cipher `%s'", cipher->name));
 	silc_server_stop(server);
 	exit(1);
       }
-      silc_cipher_free(tmp);
-
-#ifdef SILC_SIM
     } else {
+#ifdef SILC_SIM
       /* Load (try at least) the crypto SIM module */
-      SilcCipherObject cipher;
-      SilcSimContext *sim;
-
-      memset(&cipher, 0, sizeof(cipher));
-      cipher.name = alg->alg_name;
-      cipher.block_len = alg->block_len;
-      cipher.key_len = alg->key_len * 8;
-
-      sim = silc_sim_alloc();
-      sim->type = SILC_SIM_CIPHER;
-      sim->libname = alg->sim_name;
-
-      if ((silc_sim_load(sim))) {
-	cipher.set_key = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name, 
+      char buf[1023], *alg_name;
+      SilcCipherObject cipher_obj;
+      SilcSim sim;
+
+      memset(&cipher_obj, 0, sizeof(cipher_obj));
+      cipher_obj.name = cipher->name;
+      cipher_obj.block_len = cipher->block_length;
+      cipher_obj.key_len = cipher->key_length * 8;
+
+      /* build the libname */
+      snprintf(buf, sizeof(buf), "%s/%s", config->module_path,
+		cipher->module);
+      sim = silc_sim_alloc(SILC_SIM_CIPHER, buf, 0);
+
+      alg_name = strdup(cipher->name);
+      if (strchr(alg_name, '-'))
+	*strchr(alg_name, '-') = '\0';
+
+      if (silc_sim_load(sim)) {
+	cipher_obj.set_key =
+	  silc_sim_getsym(sim, silc_sim_symname(alg_name,
 						SILC_CIPHER_SIM_SET_KEY));
-	SILC_LOG_DEBUG(("set_key=%p", cipher.set_key));
-	cipher.set_key_with_string = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name, 
-						SILC_CIPHER_SIM_SET_KEY_WITH_STRING));
-	SILC_LOG_DEBUG(("set_key_with_string=%p", cipher.set_key_with_string));
-	cipher.encrypt = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name,
+	SILC_LOG_DEBUG(("set_key=%p", cipher_obj.set_key));
+	cipher_obj.set_key_with_string =
+	  silc_sim_getsym(sim,
+	    silc_sim_symname(alg_name,
+	      SILC_CIPHER_SIM_SET_KEY_WITH_STRING));
+	SILC_LOG_DEBUG(("set_key_with_string=%p",
+	  cipher_obj.set_key_with_string));
+	cipher_obj.encrypt =
+	  silc_sim_getsym(sim, silc_sim_symname(alg_name,
 						SILC_CIPHER_SIM_ENCRYPT_CBC));
-	SILC_LOG_DEBUG(("encrypt_cbc=%p", cipher.encrypt));
-        cipher.decrypt = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name,
+	SILC_LOG_DEBUG(("encrypt_cbc=%p", cipher_obj.encrypt));
+        cipher_obj.decrypt =
+	  silc_sim_getsym(sim, silc_sim_symname(alg_name,
 						SILC_CIPHER_SIM_DECRYPT_CBC));
-	SILC_LOG_DEBUG(("decrypt_cbc=%p", cipher.decrypt));
-        cipher.context_len = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name,
+	SILC_LOG_DEBUG(("decrypt_cbc=%p", cipher_obj.decrypt));
+        cipher_obj.context_len =
+	  silc_sim_getsym(sim, silc_sim_symname(alg_name,
 						SILC_CIPHER_SIM_CONTEXT_LEN));
-	SILC_LOG_DEBUG(("context_len=%p", cipher.context_len));
+	SILC_LOG_DEBUG(("context_len=%p", cipher_obj.context_len));
 
-	/* Put the SIM to the table of all SIM's in server */
-	server->sim = silc_realloc(server->sim,
-				   sizeof(*server->sim) * 
-				   (server->sim_count + 1));
-	server->sim[server->sim_count] = sim;
-	server->sim_count++;
+	/* Put the SIM to the list of all SIM's in server */
+	silc_dlist_add(server->sim, sim);
+
+	silc_free(alg_name);
       } else {
 	SILC_LOG_ERROR(("Error configuring ciphers"));
+        silc_sim_free(sim);
 	silc_server_stop(server);
 	exit(1);
       }
 
       /* Register the cipher */
-      silc_cipher_register(&cipher);
-#endif
-    }
-
-    alg = alg->next;
-  }
-}
-
-/* Registers configured PKCS's. */
-/* XXX: This really doesn't do anything now since we have statically
-   registered our PKCS's. This should be implemented when PKCS works
-   as SIM's. This checks now only that the PKCS user requested is 
-   really out there. */
-
-void silc_config_server_register_pkcs(SilcConfigServer config)
-{
-  SilcConfigServerSectionAlg *alg = config->pkcs;
-  SilcServer server = (SilcServer)config->server;
-  SilcPKCS tmp = NULL;
-
-  SILC_LOG_DEBUG(("Registering configured PKCS"));
-
-  while(alg) {
-
-    if (silc_pkcs_alloc(alg->alg_name, &tmp) == FALSE) {
-      SILC_LOG_ERROR(("Unsupported PKCS `%s'", alg->alg_name));
+      silc_cipher_register(&cipher_obj);
+#else
+      SILC_LOG_ERROR(("Dynamic module support not compiled, "
+			"can't load modules!"));
       silc_server_stop(server);
       exit(1);
+#endif
     }
-    silc_free(tmp);
+    cipher = cipher->next;
+  } /* while */
 
-    alg = alg->next;
-  }
+  return TRUE;
 }
 
 /* Registers configured hash functions. These can then be allocated by the
    server when needed. */
 
-void silc_config_server_register_hashfuncs(SilcConfigServer config)
+bool silc_server_config_register_hashfuncs(SilcServer server)
 {
-  SilcConfigServerSectionAlg *alg;
-  SilcServer server = (SilcServer)config->server;
+  SilcServerConfig config = server->config;
+  SilcServerConfigHash *hash = config->hash;
+  char *module_path = config->module_path;
 
   SILC_LOG_DEBUG(("Registering configured hash functions"));
 
-  alg = config->hash_func;
-  while(alg) {
-
-    if (!alg->sim_name) {
-      /* Hash module is supposed to be built in. Nothing to be done
-	 here except to test that the hash function really is built in. */
-      SilcHash tmp = NULL;
+  if (!hash) /* any hash func in the config file? */
+    return FALSE;
 
-      if (silc_hash_alloc(alg->alg_name, &tmp) == FALSE) {
-	SILC_LOG_ERROR(("Unsupported hash function `%s'", alg->alg_name));
+  while (hash) {
+    /* if there isn't a module_path OR there isn't a module sim name try to
+     * use buil-in functions */
+    if (!module_path || !hash->module) {
+      int i;
+      for (i = 0; silc_default_hash[i].name; i++)
+	if (!strcmp(silc_default_hash[i].name, hash->name)) {
+	  silc_hash_register((SilcHashObject *)&silc_default_hash[i]);
+	  break;
+	}
+      if (!silc_hash_is_supported(hash->name)) {
+	SILC_LOG_ERROR(("Unknown hash funtion `%s'", hash->name));
 	silc_server_stop(server);
 	exit(1);
       }
-      silc_free(tmp);
-
-#ifdef SILC_SIM
     } else {
+#ifdef SILC_SIM
       /* Load (try at least) the hash SIM module */
-      SilcHashObject hash;
-      SilcSimContext *sim;
+      SilcHashObject hash_obj;
+      SilcSim sim;
 
-      memset(&hash, 0, sizeof(hash));
-      hash.name = alg->alg_name;
-      hash.block_len = alg->block_len;
-      hash.hash_len = alg->key_len;
+      memset(&hash_obj, 0, sizeof(hash_obj));
+      hash_obj.name = hash->name;
+      hash_obj.block_len = hash->block_length;
+      hash_obj.hash_len = hash->digest_length;
 
-      sim = silc_sim_alloc();
-      sim->type = SILC_SIM_HASH;
-      sim->libname = alg->sim_name;
+      sim = silc_sim_alloc(SILC_SIM_HASH, hash->module, 0);
 
       if ((silc_sim_load(sim))) {
-	hash.init = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name, 
+	hash_obj.init =
+	  silc_sim_getsym(sim, silc_sim_symname(hash->name,
 						SILC_HASH_SIM_INIT));
-	SILC_LOG_DEBUG(("init=%p", hash.init));
-	hash.update = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name,
+	SILC_LOG_DEBUG(("init=%p", hash_obj.init));
+	hash_obj.update =
+	  silc_sim_getsym(sim, silc_sim_symname(hash->name,
 						SILC_HASH_SIM_UPDATE));
-	SILC_LOG_DEBUG(("update=%p", hash.update));
-        hash.final = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name,
+	SILC_LOG_DEBUG(("update=%p", hash_obj.update));
+        hash_obj.final =
+	  silc_sim_getsym(sim, silc_sim_symname(hash->name,
 						SILC_HASH_SIM_FINAL));
-	SILC_LOG_DEBUG(("final=%p", hash.final));
-        hash.context_len = 
-	  silc_sim_getsym(sim, silc_sim_symname(alg->alg_name,
+	SILC_LOG_DEBUG(("final=%p", hash_obj.final));
+        hash_obj.context_len =
+	  silc_sim_getsym(sim, silc_sim_symname(hash->name,
 						SILC_HASH_SIM_CONTEXT_LEN));
-	SILC_LOG_DEBUG(("context_len=%p", hash.context_len));
+	SILC_LOG_DEBUG(("context_len=%p", hash_obj.context_len));
 
 	/* Put the SIM to the table of all SIM's in server */
-	server->sim = silc_realloc(server->sim,
-				   sizeof(*server->sim) * 
-				   (server->sim_count + 1));
-	server->sim[server->sim_count] = sim;
-	server->sim_count++;
+	silc_dlist_add(server->sim, sim);
       } else {
 	SILC_LOG_ERROR(("Error configuring hash functions"));
+        silc_sim_free(sim);
 	silc_server_stop(server);
 	exit(1);
       }
 
-      /* Register the cipher */
-      silc_hash_register(&hash);
+      /* Register the hash function */
+      silc_hash_register(&hash_obj);
+#else
+      SILC_LOG_ERROR(("Dynamic module support not compiled, "
+			"can't load modules!"));
+      silc_server_stop(server);
+      exit(1);
 #endif
     }
+    hash = hash->next;
+  } /* while */
 
-    alg = alg->next;
-  }
+  return TRUE;
 }
 
-/* Returns client authentication information from server configuration
-   by host (name or ip). */
+/* Registers configure HMACs. These can then be allocated by the server
+   when needed. */
 
-SilcConfigServerSectionClientConnection *
-silc_config_server_find_client_conn(SilcConfigServer config, 
-				    char *host, int port)
+bool silc_server_config_register_hmacs(SilcServer server)
 {
-  int i;
-  SilcConfigServerSectionClientConnection *client = NULL;
+  SilcServerConfig config = server->config;
+  SilcServerConfigHmac *hmac = config->hmac;
 
-  if (!host)
-    return NULL;
+  SILC_LOG_DEBUG(("Registering configured HMACs"));
+
+  if (!hmac)
+    return FALSE;
+
+  while (hmac) {
+    SilcHmacObject hmac_obj;
+    if (!silc_hash_is_supported(hmac->hash)) {
+      SILC_LOG_ERROR(("Unknown hash function `%s'", hmac->hash));
+      silc_server_stop(server);
+      exit(1);
+    }
+
+    /* Register the HMAC */
+    memset(&hmac_obj, 0, sizeof(hmac_obj));
+    hmac_obj.name = hmac->name;
+    hmac_obj.len = hmac->mac_length;
+    silc_hmac_register(&hmac_obj);
+
+    hmac = hmac->next;
+  } /* while */
+
+  return TRUE;
+}
+
+/* Registers configured PKCS's. */
+
+bool silc_server_config_register_pkcs(SilcServer server)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigPkcs *pkcs = config->pkcs;
+
+  SILC_LOG_DEBUG(("Registering configured PKCS"));
+
+  if (!pkcs)
+    return FALSE;
+
+  while (pkcs) {
+    int i;
+    for (i = 0; silc_default_pkcs[i].name; i++)
+      if (!strcmp(silc_default_pkcs[i].name, pkcs->name)) {
+	silc_pkcs_register((SilcPKCSObject *)&silc_default_pkcs[i]);
+	break;
+      }
+    if (!silc_pkcs_is_supported(pkcs->name)) {
+      SILC_LOG_ERROR(("Unknown PKCS `%s'", pkcs->name));
+      silc_server_stop(server);
+      exit(1);
+    }
+    pkcs = pkcs->next;
+  } /* while */
+
+  return TRUE;
+}
+
+/* Sets log files where log messages are saved by the server logger. */
+
+void silc_server_config_setlogfiles(SilcServer server)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigLogging *this;
+
+  SILC_LOG_DEBUG(("Setting configured log file names and options"));
+
+  silc_log_timestamp = config->logging_timestamp;
+  silc_log_quick = config->logging_quick;
+  silc_log_flushdelay = (config->logging_flushdelay ?
+			 config->logging_flushdelay :
+			 SILC_SERVER_LOG_FLUSH_DELAY);
+
+  if ((this = config->logging_fatals))
+    silc_log_set_file(SILC_LOG_FATAL, this->file, this->maxsize,
+		      server->schedule);
+  if ((this = config->logging_errors))
+    silc_log_set_file(SILC_LOG_ERROR, this->file, this->maxsize,
+		      server->schedule);
+  if ((this = config->logging_warnings))
+    silc_log_set_file(SILC_LOG_WARNING, this->file, this->maxsize,
+		      server->schedule);
+  if ((this = config->logging_info))
+    silc_log_set_file(SILC_LOG_INFO, this->file, this->maxsize,
+		      server->schedule);
+}
+
+/* Returns client authentication information from configuration file by host
+   (name or ip) */
+
+SilcServerConfigClient *
+silc_server_config_find_client(SilcServer server, char *host)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigClient *client;
 
-  if (!config->clients)
+  if (!config || !host)
     return NULL;
 
-  client = config->clients;
+  for (client = config->clients; client; client = client->next) {
+    if (client->host && !silc_string_compare(client->host, host))
+      continue;
+    break;
+  }
 
-  for (i = 0; client; i++) {
-    if (silc_string_compare(client->host, host))
-      break;
-    client = client->next;
+  /* if none matched, then client is already NULL */
+  return client;
+}
+
+/* Returns admin connection configuration by host, username and/or
+   nickname. */
+
+SilcServerConfigAdmin *
+silc_server_config_find_admin(SilcServer server, char *host, char *user,
+			      char *nick)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigAdmin *admin;
+
+  /* make sure we have a value for the matching parameters */
+  if (!host)
+    host = "*";
+  if (!user)
+    user = "*";
+  if (!nick)
+    nick = "*";
+
+  for (admin = config->admins; admin; admin = admin->next) {
+    if (admin->host && !silc_string_compare(admin->host, host))
+      continue;
+    if (admin->user && !silc_string_compare(admin->user, user))
+      continue;
+    if (admin->nick && !silc_string_compare(admin->nick, nick))
+      continue;
+    /* no checks failed -> this entry matches */
+    break;
   }
 
-  if (!client)
+  /* if none matched, then admin is already NULL */
+  return admin;
+}
+
+/* Returns the denied connection configuration entry by host. */
+
+SilcServerConfigDeny *
+silc_server_config_find_denied(SilcServer server, char *host)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigDeny *deny;
+
+  /* make sure we have a value for the matching parameters */
+  if (!config || !host)
     return NULL;
 
-  return client;
+  for (deny = config->denied; deny; deny = deny->next) {
+    if (deny->host && !silc_string_compare(deny->host, host))
+      continue;
+    break;
+  }
+
+  /* if none matched, then deny is already NULL */
+  return deny;
 }
 
-/* Returns server connection info from server configuartion by host 
+/* Returns server connection info from server configuartion by host
    (name or ip). */
 
-SilcConfigServerSectionServerConnection *
-silc_config_server_find_server_conn(SilcConfigServer config, 
-				    char *host, int port)
+SilcServerConfigServer *
+silc_server_config_find_server_conn(SilcServer server, char *host)
 {
-  int i;
-  SilcConfigServerSectionServerConnection *serv = NULL;
+  SilcServerConfig config = server->config;
+  SilcServerConfigServer *serv = NULL;
 
   if (!host)
     return NULL;
@@ -1341,28 +2020,23 @@ silc_config_server_find_server_conn(SilcConfigServer config,
   if (!config->servers)
     return NULL;
 
-  serv = config->servers;
-  for (i = 0; serv; i++) {
-    if (silc_string_compare(serv->host, host))
-      break;
-    serv = serv->next;
+  for (serv = config->servers; serv; serv = serv->next) {
+    if (!silc_string_compare(serv->host, host))
+      continue;
+    break;
   }
 
-  if (!serv)
-    return NULL;
-
   return serv;
 }
 
-/* Returns router connection info from server configuartion by
+/* Returns router connection info from server configuration by
    host (name or ip). */
 
-SilcConfigServerSectionServerConnection *
-silc_config_server_find_router_conn(SilcConfigServer config, 
-				    char *host, int port)
+SilcServerConfigRouter *
+silc_server_config_find_router_conn(SilcServer server, char *host, int port)
 {
-  int i;
-  SilcConfigServerSectionServerConnection *serv = NULL;
+  SilcServerConfig config = server->config;
+  SilcServerConfigRouter *serv = NULL;
 
   if (!host)
     return NULL;
@@ -1370,77 +2044,109 @@ silc_config_server_find_router_conn(SilcConfigServer config,
   if (!config->routers)
     return NULL;
 
-  serv = config->routers;
-  for (i = 0; serv; i++) {
-    if (silc_string_compare(serv->host, host))
-      break;
-    serv = serv->next;
+  for (serv = config->routers; serv; serv = serv->next) {
+    if (!silc_string_compare(serv->host, host))
+      continue;
+    if (port && serv->port && serv->port != port)
+      continue;
+    break;
   }
 
-  if (!serv)
+  return serv;
+}
+
+/* Find backup router connection by host (name or ip) */
+
+SilcServerConfigRouter *
+silc_server_config_find_backup_conn(SilcServer server, char *host)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigRouter *serv = NULL;
+
+  if (!host)
+    return NULL;
+
+  if (!config->routers)
     return NULL;
 
+  for (serv = config->routers; serv; serv = serv->next) {
+    if (!serv->backup_router)
+      continue;
+    if (!silc_string_compare(serv->host, host))
+      continue;
+    break;
+  }
+
   return serv;
 }
 
-/* Prints out example configuration file with default built in
-   configuration values. */
+/* Returns TRUE if configuration for a router connection that we are
+   initiating exists. */
 
-void silc_config_server_print()
+bool silc_server_config_is_primary_route(SilcServer server)
 {
-  char *buf;
-
-  buf = "\
-#\n\
-# Automatically generated example SILCd configuration file with default\n\
-# built in values. Use this as a guide to configure your SILCd configuration\n\
-# file for your system. For detailed description of different configuration\n\
-# sections refer to silcd(8) manual page.\n\
-#\n";
-  /*
-#<Cipher>
-#+blowfish
-#+twofish
-#+rc5
-#+rc6
-#+3des
+  SilcServerConfig config = server->config;
+  SilcServerConfigRouter *serv = NULL;
+  int i;
+  bool found = FALSE;
 
-#<HashFunction>
-#+md5
-#+sha1
+  serv = config->routers;
+  for (i = 0; serv; i++) {
+    if (serv->initiator == TRUE && serv->backup_router == FALSE) {
+      found = TRUE;
+      break;
+    }
 
-<ServerInfo>
-+lassi.kuo.fi.ssh.com:10.2.1.6:Kuopio, Finland:1333
+    serv = serv->next;
+  }
 
-<AdminInfo>
-+Mun huone:Mun servo:Pekka Riikonen:priikone@poseidon.pspt.fi
+  return found;
+}
 
-<ListenPort>
-+10.2.1.6:10.2.1.6:1333
+/* Returns our primary connection configuration or NULL if we do not
+   have primary router configured. */
 
-<Logging>
-+infologfile:silcd.log:10000
-#+warninglogfile:/var/log/silcd_warning.log:10000
-#+errorlogfile:ERROR.log:10000
-#+fatallogfile:/var/log/silcd_error.log:
+SilcServerConfigRouter *
+silc_server_config_get_primary_router(SilcServer server)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigRouter *serv = NULL;
+  int i;
 
-<ConnectionClass>
-	  	+1:100:100:100
-			+2:200:300:400
+  serv = config->routers;
+  for (i = 0; serv; i++) {
+    if (serv->initiator == TRUE && serv->backup_router == FALSE)
+      return serv;
+    serv = serv->next;
+  }
 
-<ClientAuth>
-+10.2.1.199:priikone:333:1
+  return NULL;
+}
 
-<AdminAuth>
-+10.2.1.199:priikone:priikone:1
+/* If we have backup router configured that is going to replace us this
+   function returns it. */
 
-<ServerConnection>
+SilcServerConfigRouter *
+silc_server_config_get_backup_router(SilcServer server)
+{
+  SilcServerConfig config = server->config;
+  SilcServerConfigRouter *serv = NULL;
+  int i;
 
-<RouterConnection>
+  if (server->server_type != SILC_ROUTER)
+    return NULL;
 
-<DenyConnection>
-<RedirectClient>
-  */
+  serv = config->routers;
+  for (i = 0; serv; i++) {
+    if (serv->initiator == FALSE && serv->backup_router == TRUE &&
+	serv->backup_local == TRUE &&
+	!strcmp(server->config->server_info->primary->server_ip,
+		serv->backup_replace_ip) &&
+	server->config->server_info->primary->port ==
+	serv->backup_replace_port)
+      return serv;
+    serv = serv->next;
+  }
 
-  fprintf(stdout, "%s\n", buf);
+  return NULL;
 }