X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fconf.c;h=6bd224f3c11ea58189d081beb361d97783bf721f;hp=276fc81ec838a93043d0f57a9ed7012fa7075cc9;hb=f087c68a99951d12ba91c5f6e1e0e548c5a5d912;hpb=8adff5922376676c2eeb49de1cbab86cc345b887 diff --git a/src/ngircd/conf.c b/src/ngircd/conf.c index 276fc81e..6bd224f3 100644 --- a/src/ngircd/conf.c +++ b/src/ngircd/conf.c @@ -1,20 +1,20 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001,2002 Alexander Barton (alex@barton.de) + * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors. * * 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. * Please read the file COPYING, README and AUTHORS for more information. - * - * Configuration management (reading, parsing & validation) */ - #include "portab.h" -static char UNUSED id[] = "$Id: conf.c,v 1.72 2005/03/19 18:43:48 fw Exp $"; +/** + * @file + * Configuration management (reading, parsing & validation) + */ #include "imp.h" #include @@ -38,278 +38,557 @@ static char UNUSED id[] = "$Id: conf.c,v 1.72 2005/03/19 18:43:48 fw Exp $"; # include #endif +#include "array.h" #include "ngircd.h" #include "conn.h" -#include "client.h" +#include "channel.h" #include "defines.h" #include "log.h" -#include "resolve.h" +#include "match.h" #include "tool.h" #include "exp.h" #include "conf.h" -LOCAL bool Use_Log = true; -LOCAL CONF_SERVER New_Server; -LOCAL int New_Server_Idx; +static bool Use_Log = true, Using_MotdFile = true; +static CONF_SERVER New_Server; +static int New_Server_Idx; +static size_t Conf_Oper_Count; +static size_t Conf_Channel_Count; +static char Conf_MotdFile[FNAME_LEN]; -LOCAL void Set_Defaults PARAMS(( bool InitServers )); -LOCAL void Read_Config PARAMS(( void )); -LOCAL void Validate_Config PARAMS(( bool TestOnly )); +static void Set_Defaults PARAMS(( bool InitServers )); +static bool Read_Config PARAMS(( bool ngircd_starting )); +static bool Validate_Config PARAMS(( bool TestOnly, bool Rehash )); -LOCAL void Handle_GLOBAL PARAMS(( int Line, char *Var, char *Arg )); -LOCAL void Handle_OPERATOR PARAMS(( int Line, char *Var, char *Arg )); -LOCAL void Handle_SERVER PARAMS(( int Line, char *Var, char *Arg )); -LOCAL void Handle_CHANNEL PARAMS(( int Line, char *Var, char *Arg )); +static void Handle_GLOBAL PARAMS(( int Line, char *Var, char *Arg )); +static void Handle_LIMITS PARAMS(( int Line, char *Var, char *Arg )); +static void Handle_OPTIONS PARAMS(( int Line, char *Var, char *Arg )); +static void Handle_OPERATOR PARAMS(( int Line, char *Var, char *Arg )); +static void Handle_SERVER PARAMS(( int Line, char *Var, char *Arg )); +static void Handle_CHANNEL PARAMS(( int Line, char *Var, char *Arg )); -LOCAL void Config_Error PARAMS(( const int Level, const char *Format, ... )); +static void Config_Error PARAMS(( const int Level, const char *Format, ... )); -LOCAL void Config_Error_NaN PARAMS(( const int LINE, const char *Value )); -LOCAL void Config_Error_TooLong PARAMS(( const int LINE, const char *Value )); +static void Config_Error_NaN PARAMS(( const int LINE, const char *Value )); +static void Config_Error_Section PARAMS(( const int Line, const char *Item, + const char *Section )); +static void Config_Error_TooLong PARAMS(( const int LINE, const char *Value )); -LOCAL void Init_Server_Struct PARAMS(( CONF_SERVER *Server )); +static void Init_Server_Struct PARAMS(( CONF_SERVER *Server )); -GLOBAL void -Conf_Init( void ) +#ifdef WANT_IPV6 +#define DEFAULT_LISTEN_ADDRSTR "::,0.0.0.0" +#else +#define DEFAULT_LISTEN_ADDRSTR "0.0.0.0" +#endif + + +#ifdef SSL_SUPPORT + +struct SSLOptions Conf_SSLOptions; + +/** + * Initialize SSL configuration. + */ +static void +ConfSSL_Init(void) +{ + free(Conf_SSLOptions.KeyFile); + Conf_SSLOptions.KeyFile = NULL; + + free(Conf_SSLOptions.CertFile); + Conf_SSLOptions.CertFile = NULL; + + free(Conf_SSLOptions.DHFile); + Conf_SSLOptions.DHFile = NULL; + array_free_wipe(&Conf_SSLOptions.KeyFilePassword); +} + +/** + * Make sure that a configured file is readable. + * + * Currently, this function is only used for SSL-related options ... + * + * @param Var Configuration variable + * @param Filename Configured filename + */ +static void +CheckFileReadable(const char *Var, const char *Filename) +{ + FILE *fp; + + fp = fopen(Filename, "r"); + if (fp) + fclose(fp); + else + Config_Error(LOG_ERR, "Can't read \"%s\" (\"%s\"): %s", + Filename, Var, strerror(errno)); +} + +#endif + + +/** + * Duplicate string and warn on errors. + * + * @returns Pointer to string on success, NULL otherwise. + */ +static char * +strdup_warn(const char *str) +{ + char *ptr = strdup(str); + if (!ptr) + Config_Error(LOG_ERR, + "Could not allocate memory for string: %s", str); + return ptr; +} + +/** + * Output a comma separated list of ports (integer values). + */ +static void +ports_puts(array *a) +{ + size_t len; + UINT16 *ports; + len = array_length(a, sizeof(UINT16)); + if (len--) { + ports = (UINT16*) array_start(a); + printf("%u", (unsigned int) *ports); + while (len--) { + ports++; + printf(", %u", (unsigned int) *ports); + } + } + putc('\n', stdout); +} + +/** + * Parse a comma separated string into an array of port numbers (integers). + */ +static void +ports_parse(array *a, int Line, char *Arg) { - Set_Defaults( true ); - Read_Config( ); - Validate_Config( false ); -} /* Config_Init */ + char *ptr; + int port; + UINT16 port16; + + array_trunc(a); + + ptr = strtok( Arg, "," ); + while (ptr) { + ngt_TrimStr(ptr); + port = atoi(ptr); + if (port > 0 && port < 0xFFFF) { + port16 = (UINT16) port; + if (!array_catb(a, (char*)&port16, sizeof port16)) + Config_Error(LOG_ERR, "%s, line %d Could not add port number %ld: %s", + NGIRCd_ConfFile, Line, port, strerror(errno)); + } else { + Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Illegal port number %ld!", + NGIRCd_ConfFile, Line, port ); + } + ptr = strtok( NULL, "," ); + } +} +/** + * Initialize configuration module. + */ GLOBAL void +Conf_Init( void ) +{ + Read_Config( true ); + Validate_Config(false, false); +} + +/** + * "Rehash" (reload) server configuration. + * + * @returns true if configuration has been re-read, false on errors. + */ +GLOBAL bool Conf_Rehash( void ) { - Set_Defaults( false ); - Read_Config( ); - Validate_Config( false ); -} /* Config_Rehash */ + if (!Read_Config(false)) + return false; + Validate_Config(false, true); + + /* Update CLIENT structure of local server */ + Client_SetInfo(Client_ThisServer(), Conf_ServerInfo); + return true; +} + +/** + * Output a boolean value as "yes/no" string. + */ +static const char* +yesno_to_str(int boolean_value) +{ + if (boolean_value) + return "yes"; + return "no"; +} + +/** + * Free all IRC operator configuration structures. + */ +static void +opers_free(void) +{ + struct Conf_Oper *op; + size_t len; + + len = array_length(&Conf_Opers, sizeof(*op)); + op = array_start(&Conf_Opers); + while (len--) { + free(op->mask); + op++; + } + array_free(&Conf_Opers); +} +/** + * Output all IRC operator configuration structures. + */ +static void +opers_puts(void) +{ + struct Conf_Oper *op; + size_t len; + + len = array_length(&Conf_Opers, sizeof(*op)); + op = array_start(&Conf_Opers); + while (len--) { + assert(op->name[0]); + + puts("[OPERATOR]"); + printf(" Name = %s\n", op->name); + printf(" Password = %s\n", op->pwd); + printf(" Mask = %s\n\n", op->mask ? op->mask : ""); + op++; + } +} +/** + * Read configuration, validate and output it. + * + * This function waits for a keypress of the user when stdin/stdout are valid + * tty's ("you can read our nice message and we can read in your keypress"). + * + * @return 0 on succes, 1 on failure(s); therefore the result code can + * directly be used by exit() when running "ngircd --configtest". + */ GLOBAL int Conf_Test( void ) { - /* Read configuration, validate and output it. */ - struct passwd *pwd; struct group *grp; - int i; + unsigned int i; + bool config_valid; + size_t predef_channel_count; + struct Conf_Channel *predef_chan; Use_Log = false; - Set_Defaults( true ); - - Read_Config( ); - Validate_Config( true ); - /* If stdin is a valid tty wait for a key: */ - if( isatty( fileno( stdout ))) - { - puts( "OK, press enter to see a dump of your service configuration ..." ); - getchar( ); - } - else puts( "Ok, dump of your server configuration follows:\n" ); - - puts( "[GLOBAL]" ); - printf( " Name = %s\n", Conf_ServerName ); - printf( " Info = %s\n", Conf_ServerInfo ); - printf( " Password = %s\n", Conf_ServerPwd ); - printf( " AdminInfo1 = %s\n", Conf_ServerAdmin1 ); - printf( " AdminInfo2 = %s\n", Conf_ServerAdmin2 ); - printf( " AdminEMail = %s\n", Conf_ServerAdminMail ); - printf( " MotdFile = %s\n", Conf_MotdFile ); - printf( " MotdPhrase = %s\n", Conf_MotdPhrase ); - printf( " ChrootDir = %s\n", Conf_Chroot ); - printf( " PidFile = %s\n", Conf_PidFile); - printf( " Ports = " ); - for( i = 0; i < Conf_ListenPorts_Count; i++ ) - { - if( i != 0 ) printf( ", " ); - printf( "%u", Conf_ListenPorts[i] ); - } - puts( "" ); - printf( " Listen = %s\n", Conf_ListenAddress ); - pwd = getpwuid( Conf_UID ); - if( pwd ) printf( " ServerUID = %s\n", pwd->pw_name ); - else printf( " ServerUID = %ld\n", (long)Conf_UID ); - grp = getgrgid( Conf_GID ); - if( grp ) printf( " ServerGID = %s\n", grp->gr_name ); - else printf( " ServerGID = %ld\n", (long)Conf_GID ); - printf( " PingTimeout = %d\n", Conf_PingTimeout ); - printf( " PongTimeout = %d\n", Conf_PongTimeout ); - printf( " ConnectRetry = %d\n", Conf_ConnectRetry ); - printf( " OperCanUseMode = %s\n", Conf_OperCanMode == true? "yes" : "no" ); - printf( " OperServerMode = %s\n", Conf_OperServerMode == true? "yes" : "no" ); - if( Conf_MaxConnections > 0 ) printf( " MaxConnections = %ld\n", Conf_MaxConnections ); - else printf( " MaxConnections = -1\n" ); - if( Conf_MaxConnectionsIP > 0 ) printf( " MaxConnectionsIP = %d\n", Conf_MaxConnectionsIP ); - else printf( " MaxConnectionsIP = -1\n" ); - if( Conf_MaxJoins > 0 ) printf( " MaxJoins = %d\n", Conf_MaxJoins ); - else printf( " MaxJoins = -1\n" ); - puts( "" ); - - for( i = 0; i < Conf_Oper_Count; i++ ) - { - if( ! Conf_Oper[i].name[0] ) continue; - - /* Valid "Operator" section */ - puts( "[OPERATOR]" ); - printf( " Name = %s\n", Conf_Oper[i].name ); - printf( " Password = %s\n", Conf_Oper[i].pwd ); - if ( Conf_Oper[i].mask ) printf( " Mask = %s\n", Conf_Oper[i].mask ); - puts( "" ); + if (! Read_Config(true)) + return 1; + + config_valid = Validate_Config(true, false); + + /* Valid tty? */ + if(isatty(fileno(stdin)) && isatty(fileno(stdout))) { + puts("OK, press enter to see a dump of your server configuration ..."); + getchar(); + } else + puts("Ok, dump of your server configuration follows:\n"); + + puts("[GLOBAL]"); + printf(" Name = %s\n", Conf_ServerName); + printf(" AdminInfo1 = %s\n", Conf_ServerAdmin1); + printf(" AdminInfo2 = %s\n", Conf_ServerAdmin2); + printf(" AdminEMail = %s\n", Conf_ServerAdminMail); + printf(" Info = %s\n", Conf_ServerInfo); + printf(" Listen = %s\n", Conf_ListenAddress); + if (Using_MotdFile) { + printf(" MotdFile = %s\n", Conf_MotdFile); + printf(" MotdPhrase =\n"); + } else { + printf(" MotdFile = \n"); + printf(" MotdPhrase = %s\n", array_bytes(&Conf_Motd) + ? (const char*) array_start(&Conf_Motd) : ""); } +#ifndef PAM + printf(" Password = %s\n", Conf_ServerPwd); +#endif + printf(" PidFile = %s\n", Conf_PidFile); + printf(" Ports = "); + ports_puts(&Conf_ListenPorts); + grp = getgrgid(Conf_GID); + if (grp) + printf(" ServerGID = %s\n", grp->gr_name); + else + printf(" ServerGID = %ld\n", (long)Conf_GID); + pwd = getpwuid(Conf_UID); + if (pwd) + printf(" ServerUID = %s\n", pwd->pw_name); + else + printf(" ServerUID = %ld\n", (long)Conf_UID); + puts(""); + + puts("[LIMITS]"); + printf(" ConnectRetry = %d\n", Conf_ConnectRetry); + printf(" MaxConnections = %ld\n", Conf_MaxConnections); + printf(" MaxConnectionsIP = %d\n", Conf_MaxConnectionsIP); + printf(" MaxJoins = %d\n", Conf_MaxJoins > 0 ? Conf_MaxJoins : -1); + printf(" MaxNickLength = %u\n", Conf_MaxNickLength - 1); + printf(" PingTimeout = %d\n", Conf_PingTimeout); + printf(" PongTimeout = %d\n", Conf_PongTimeout); + puts(""); + + puts("[OPTIONS]"); + printf(" AllowRemoteOper = %s\n", yesno_to_str(Conf_AllowRemoteOper)); + printf(" ChrootDir = %s\n", Conf_Chroot); + printf(" CloakHost = %s\n", Conf_CloakHost); + printf(" CloakUserToNick = %s\n", yesno_to_str(Conf_CloakUserToNick)); +#ifdef WANT_IPV6 + printf(" ConnectIPv4 = %s\n", yesno_to_str(Conf_ConnectIPv6)); + printf(" ConnectIPv6 = %s\n", yesno_to_str(Conf_ConnectIPv4)); +#endif + printf(" DNS = %s\n", yesno_to_str(Conf_DNS)); +#ifdef IDENT + printf(" Ident = %s\n", yesno_to_str(Conf_Ident)); +#endif + printf(" NoticeAuth = %s\n", yesno_to_str(Conf_NoticeAuth)); + printf(" OperCanUseMode = %s\n", yesno_to_str(Conf_OperCanMode)); + printf(" OperServerMode = %s\n", yesno_to_str(Conf_OperServerMode)); +#ifdef PAM + printf(" PAM = %s\n", yesno_to_str(Conf_PAM)); +#endif + printf(" PredefChannelsOnly = %s\n", yesno_to_str(Conf_PredefChannelsOnly)); +#ifndef STRICT_RFC + printf(" RequireAuthPing = %s\n", yesno_to_str(Conf_AuthPing)); +#endif + printf(" ScrubCTCP = %s\n", yesno_to_str(Conf_ScrubCTCP)); +#ifdef SSL_SUPPORT + printf(" SSLCertFile = %s\n", Conf_SSLOptions.CertFile); + printf(" SSLDHFile = %s\n", Conf_SSLOptions.DHFile); + printf(" SSLKeyFile = %s\n", Conf_SSLOptions.KeyFile); + if (array_bytes(&Conf_SSLOptions.KeyFilePassword)) + puts(" SSLKeyFilePassword = "); + else + puts(" SSLKeyFilePassword = "); + array_free_wipe(&Conf_SSLOptions.KeyFilePassword); + printf(" SSLPorts = "); + ports_puts(&Conf_SSLOptions.ListenPorts); +#endif +#ifdef SYSLOG + printf(" SyslogFacility = %s\n", + ngt_SyslogFacilityName(Conf_SyslogFacility)); +#endif + printf(" WebircPassword = %s\n", Conf_WebircPwd); + puts(""); - for( i = 0; i < MAX_SERVERS; i++ ) - { + opers_puts(); + + for( i = 0; i < MAX_SERVERS; i++ ) { if( ! Conf_Server[i].name[0] ) continue; - + /* Valid "Server" section */ puts( "[SERVER]" ); printf( " Name = %s\n", Conf_Server[i].name ); printf( " Host = %s\n", Conf_Server[i].host ); - printf( " Port = %d\n", Conf_Server[i].port ); + printf( " Port = %u\n", (unsigned int)Conf_Server[i].port ); +#ifdef SSL_SUPPORT + printf( " SSLConnect = %s\n", Conf_Server[i].SSLConnect?"yes":"no"); +#endif printf( " MyPassword = %s\n", Conf_Server[i].pwd_in ); printf( " PeerPassword = %s\n", Conf_Server[i].pwd_out ); + printf( " ServiceMask = %s\n", Conf_Server[i].svs_mask); printf( " Group = %d\n", Conf_Server[i].group ); - puts( "" ); + printf( " Passive = %s\n\n", Conf_Server[i].flags & CONF_SFLAG_DISABLED ? "yes" : "no"); } - for( i = 0; i < Conf_Channel_Count; i++ ) - { - if( ! Conf_Channel[i].name[0] ) continue; - + predef_channel_count = array_length(&Conf_Channels, sizeof(*predef_chan)); + predef_chan = array_start(&Conf_Channels); + + for (i = 0; i < predef_channel_count; i++, predef_chan++) { + if (!predef_chan->name[0]) + continue; + /* Valid "Channel" section */ puts( "[CHANNEL]" ); - printf( " Name = %s\n", Conf_Channel[i].name ); - printf( " Modes = %s\n", Conf_Channel[i].modes ); - printf( " Topic = %s\n", Conf_Channel[i].topic ); - puts( "" ); + printf(" Name = %s\n", predef_chan->name); + printf(" Modes = %s\n", predef_chan->modes); + printf(" Key = %s\n", predef_chan->key); + printf(" MaxUsers = %lu\n", predef_chan->maxusers); + printf(" Topic = %s\n", predef_chan->topic); + printf(" KeyFile = %s\n\n", predef_chan->keyfile); } - - return 0; -} /* Conf_Test */ + return (config_valid ? 0 : 1); +} +/** + * Remove connection information from configured server. + * + * If the server is set as "once", delete it from our configuration; + * otherwise set the time for the next connection attempt. + * + * Non-server connections will be silently ignored. + */ GLOBAL void Conf_UnsetServer( CONN_ID Idx ) { - /* Set next time for next connection attempt, if this is a server - * link that is (still) configured here. If the server is set as - * "once", delete it from our configuration. - * Non-Server-Connections will be silently ignored. */ - int i; + time_t t; /* Check all our configured servers */ - for( i = 0; i < MAX_SERVERS; i++ ) - { + for( i = 0; i < MAX_SERVERS; i++ ) { if( Conf_Server[i].conn_id != Idx ) continue; /* Gotcha! Mark server configuration as "unused": */ Conf_Server[i].conn_id = NONE; - if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) - { + if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) { /* Delete configuration here */ Init_Server_Struct( &Conf_Server[i] ); - } - else - { + } else { /* Set time for next connect attempt */ - if( Conf_Server[i].lasttry < time( NULL ) - Conf_ConnectRetry ) - { - /* Okay, the connection was established "long enough": */ - Conf_Server[i].lasttry = time( NULL ) - Conf_ConnectRetry + RECONNECT_DELAY; - } + t = time(NULL); + if (Conf_Server[i].lasttry < t - Conf_ConnectRetry) { + /* The connection has been "long", so we don't + * require the next attempt to be delayed. */ + Conf_Server[i].lasttry = + t - Conf_ConnectRetry + RECONNECT_DELAY; + } else + Conf_Server[i].lasttry = t; } } -} /* Conf_UnsetServer */ - +} +/** + * Set connection information for specified configured server. + */ GLOBAL void Conf_SetServer( int ConfServer, CONN_ID Idx ) { - /* Set connection for specified configured server */ - assert( ConfServer > NONE ); assert( Idx > NONE ); Conf_Server[ConfServer].conn_id = Idx; -} /* Conf_SetServer */ - +} +/** + * Get index of server in configuration structure. + */ GLOBAL int Conf_GetServer( CONN_ID Idx ) { - /* Get index of server in configuration structure */ - int i = 0; - + assert( Idx > NONE ); - for( i = 0; i < MAX_SERVERS; i++ ) - { + for( i = 0; i < MAX_SERVERS; i++ ) { if( Conf_Server[i].conn_id == Idx ) return i; } return NONE; -} /* Conf_GetServer */ - +} +/** + * Enable a server by name and adjust its port number. + * + * @returns true if a server has been enabled and now has a valid port + * number and host name for outgoing connections. + */ GLOBAL bool -Conf_EnableServer( char *Name, UINT16 Port ) +Conf_EnableServer( const char *Name, UINT16 Port ) { - /* Enable specified server and adjust port */ - int i; assert( Name != NULL ); - - for( i = 0; i < MAX_SERVERS; i++ ) - { - if( strcasecmp( Conf_Server[i].name, Name ) == 0 ) - { + for( i = 0; i < MAX_SERVERS; i++ ) { + if( strcasecmp( Conf_Server[i].name, Name ) == 0 ) { /* Gotcha! Set port and enable server: */ Conf_Server[i].port = Port; Conf_Server[i].flags &= ~CONF_SFLAG_DISABLED; - return true; + return (Conf_Server[i].port && Conf_Server[i].host[0]); } } return false; -} /* Conf_EnableServer */ - +} +/** + * Enable a server by name. + * + * The server is only usable as outgoing server, if it has set a valid port + * number for outgoing connections! + * If not, you have to use Conf_EnableServer() function to make it available. + * + * @returns true if a server has been enabled; false otherwise. + */ GLOBAL bool -Conf_DisableServer( char *Name ) +Conf_EnablePassiveServer(const char *Name) { - /* Enable specified server and adjust port */ - int i; assert( Name != NULL ); + for (i = 0; i < MAX_SERVERS; i++) { + if ((strcasecmp( Conf_Server[i].name, Name ) == 0) + && (Conf_Server[i].port > 0)) { + /* BINGO! Enable server */ + Conf_Server[i].flags &= ~CONF_SFLAG_DISABLED; + return true; + } + } + return false; +} - for( i = 0; i < MAX_SERVERS; i++ ) - { - if( strcasecmp( Conf_Server[i].name, Name ) == 0 ) - { +/** + * Disable a server by name. + * An already established connection will be disconnected. + * + * @returns true if a server was found and has been disabled. + */ +GLOBAL bool +Conf_DisableServer( const char *Name ) +{ + int i; + + assert( Name != NULL ); + for( i = 0; i < MAX_SERVERS; i++ ) { + if( strcasecmp( Conf_Server[i].name, Name ) == 0 ) { /* Gotcha! Disable and disconnect server: */ Conf_Server[i].flags |= CONF_SFLAG_DISABLED; - if( Conf_Server[i].conn_id > NONE ) Conn_Close( Conf_Server[i].conn_id, NULL, "Server link terminated on operator request", true); + if( Conf_Server[i].conn_id > NONE ) + Conn_Close(Conf_Server[i].conn_id, NULL, + "Server link terminated on operator request", + true); return true; } } return false; -} /* Conf_DisableServer */ - +} +/** + * Add a new remote server to our configuration. + * + * @param Name Name of the new server. + * @param Port Port number to connect to or 0 for incoming connections. + * @param Host Host name to connect to. + * @param MyPwd Password that will be sent to the peer. + * @param PeerPwd Password that must be received from the peer. + * @returns true if the new server has been added; false otherwise. + */ GLOBAL bool -Conf_AddServer( char *Name, UINT16 Port, char *Host, char *MyPwd, char *PeerPwd ) +Conf_AddServer(const char *Name, UINT16 Port, const char *Host, + const char *MyPwd, const char *PeerPwd) { - /* Add new server to configuration */ - int i; assert( Name != NULL ); @@ -318,8 +597,7 @@ Conf_AddServer( char *Name, UINT16 Port, char *Host, char *MyPwd, char *PeerPwd assert( PeerPwd != NULL ); /* Search unused item in server configuration structure */ - for( i = 0; i < MAX_SERVERS; i++ ) - { + for( i = 0; i < MAX_SERVERS; i++ ) { /* Is this item used? */ if( ! Conf_Server[i].name[0] ) break; } @@ -332,79 +610,187 @@ Conf_AddServer( char *Name, UINT16 Port, char *Host, char *MyPwd, char *PeerPwd strlcpy( Conf_Server[i].pwd_in, PeerPwd, sizeof( Conf_Server[i].pwd_in )); Conf_Server[i].port = Port; Conf_Server[i].flags = CONF_SFLAG_ONCE; - - return true; -} /* Conf_AddServer */ + return true; +} -LOCAL void -Set_Defaults( bool InitServers ) +/** + * Check if the given nick name is an service. + * + * @returns true if the given nick name belongs to an "IRC service". + */ +GLOBAL bool +Conf_IsService(int ConfServer, const char *Nick) { - /* Initialize configuration variables with default values. */ + return MatchCaseInsensitive(Conf_Server[ConfServer].svs_mask, Nick); +} +/** + * Initialize configuration settings with their default values. + */ +static void +Set_Defaults(bool InitServers) +{ int i; - strcpy( Conf_ServerName, "" ); - sprintf( Conf_ServerInfo, "%s %s", PACKAGE_NAME, PACKAGE_VERSION ); - strcpy( Conf_ServerPwd, "" ); - - strcpy( Conf_ServerAdmin1, "" ); - strcpy( Conf_ServerAdmin2, "" ); - strcpy( Conf_ServerAdminMail, "" ); - - strlcpy( Conf_MotdFile, SYSCONFDIR, sizeof( Conf_MotdFile )); - strlcat( Conf_MotdFile, MOTD_FILE, sizeof( Conf_MotdFile )); - - strlcpy( Conf_MotdPhrase, MOTD_PHRASE, sizeof( Conf_MotdPhrase )); - - strlcpy( Conf_Chroot, CHROOT_DIR, sizeof( Conf_Chroot )); - - strlcpy( Conf_PidFile, PID_FILE, sizeof( Conf_PidFile )); - - Conf_ListenPorts_Count = 0; - strcpy( Conf_ListenAddress, "" ); - + /* Global */ + strcpy(Conf_ServerName, ""); + strcpy(Conf_ServerAdmin1, ""); + strcpy(Conf_ServerAdmin2, ""); + strcpy(Conf_ServerAdminMail, ""); + snprintf(Conf_ServerInfo, sizeof Conf_ServerInfo, "%s %s", + PACKAGE_NAME, PACKAGE_VERSION); + free(Conf_ListenAddress); + Conf_ListenAddress = NULL; + array_free(&Conf_Motd); + strlcpy(Conf_MotdFile, SYSCONFDIR, sizeof(Conf_MotdFile)); + strlcat(Conf_MotdFile, MOTD_FILE, sizeof(Conf_MotdFile)); + strcpy(Conf_ServerPwd, ""); + strlcpy(Conf_PidFile, PID_FILE, sizeof(Conf_PidFile)); Conf_UID = Conf_GID = 0; - + + /* Limits */ + Conf_ConnectRetry = 60; + Conf_MaxConnections = 0; + Conf_MaxConnectionsIP = 5; + Conf_MaxJoins = 10; + Conf_MaxNickLength = CLIENT_NICK_LEN_DEFAULT; Conf_PingTimeout = 120; Conf_PongTimeout = 20; - Conf_ConnectRetry = 60; + /* Options */ + Conf_AllowRemoteOper = false; +#ifndef STRICT_RFC + Conf_AuthPing = false; +#endif + strlcpy(Conf_Chroot, CHROOT_DIR, sizeof(Conf_Chroot)); + strcpy(Conf_CloakHost, ""); + Conf_CloakUserToNick = false; + Conf_ConnectIPv4 = true; +#ifdef WANT_IPV6 + Conf_ConnectIPv6 = true; +#else + Conf_ConnectIPv6 = false; +#endif + Conf_DNS = true; +#ifdef IDENTAUTH + Conf_Ident = true; +#else + Conf_Ident = false; +#endif + Conf_NoticeAuth = false; + Conf_OperCanMode = false; + Conf_OperServerMode = false; +#ifdef PAM + Conf_PAM = true; +#else + Conf_PAM = false; +#endif + Conf_PredefChannelsOnly = false; +#ifdef SYSLOG + Conf_ScrubCTCP = false; +#ifdef LOG_LOCAL5 + Conf_SyslogFacility = LOG_LOCAL5; +#else + Conf_SyslogFacility = 0; +#endif +#endif + /* Initialize IRC operators and channels */ Conf_Oper_Count = 0; Conf_Channel_Count = 0; - Conf_OperCanMode = false; - Conf_OperServerMode = false; - - Conf_MaxConnections = -1; - Conf_MaxConnectionsIP = 5; - Conf_MaxJoins = 10; - /* Initialize server configuration structures */ - if( InitServers ) for( i = 0; i < MAX_SERVERS; Init_Server_Struct( &Conf_Server[i++] )); -} /* Set_Defaults */ + if (InitServers) { + for (i = 0; i < MAX_SERVERS; + Init_Server_Struct(&Conf_Server[i++])); + } +} +/** + * Get number of configured listening ports. + * + * @returns The number of ports (IPv4+IPv6) on which the server should listen. + */ +static bool +no_listenports(void) +{ + size_t cnt = array_bytes(&Conf_ListenPorts); +#ifdef SSL_SUPPORT + cnt += array_bytes(&Conf_SSLOptions.ListenPorts); +#endif + return cnt == 0; +} -LOCAL void -Read_Config( void ) +/** + * Read MOTD ("message of the day") file. + * + * @param filename Name of the file to read. + */ +static void +Read_Motd(const char *filename) { - /* Read configuration file. */ + char line[127]; + FILE *fp; + + if (*filename == '\0') + return; + + fp = fopen(filename, "r"); + if (!fp) { + Config_Error(LOG_WARNING, "Can't read MOTD file \"%s\": %s", + filename, strerror(errno)); + return; + } + + array_free(&Conf_Motd); + Using_MotdFile = true; + + while (fgets(line, (int)sizeof line, fp)) { + ngt_TrimLastChr( line, '\n'); + + /* add text including \0 */ + if (!array_catb(&Conf_Motd, line, strlen(line) + 1)) { + Log(LOG_WARNING, "Cannot add MOTD text: %s", strerror(errno)); + break; + } + } + fclose(fp); +} +/** + * Read ngIRCd configuration file. + * + * Please note that this function uses exit(1) on fatal errors and therefore + * can result in ngIRCd terminating! + * + * @param ngircd_starting Flag indicating if ngIRCd is starting or not. + * @returns true when the configuration file has been read + * successfully; false otherwise. + */ +static bool +Read_Config( bool ngircd_starting ) +{ char section[LINE_LEN], str[LINE_LEN], *var, *arg, *ptr; + const UINT16 defaultport = 6667; int line, i, n; FILE *fd; /* Open configuration file */ fd = fopen( NGIRCd_ConfFile, "r" ); - if( ! fd ) - { + if( ! fd ) { /* No configuration file found! */ - Config_Error( LOG_ALERT, "Can't read configuration \"%s\": %s", NGIRCd_ConfFile, strerror( errno )); + Config_Error( LOG_ALERT, "Can't read configuration \"%s\": %s", + NGIRCd_ConfFile, strerror( errno )); + if (!ngircd_starting) + return false; Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME ); exit( 1 ); } + opers_free(); + Set_Defaults( ngircd_starting ); + Config_Error( LOG_INFO, "Reading configuration from \"%s\" ...", NGIRCd_ConfFile ); /* Clean up server configuration structure: mark all already @@ -413,28 +799,24 @@ Read_Config( void ) * And delete all servers which are "duplicates" of servers * that are already marked as "once" (such servers have been * created by the last rehash but are now useless). */ - for( i = 0; i < MAX_SERVERS; i++ ) - { + for( i = 0; i < MAX_SERVERS; i++ ) { if( Conf_Server[i].conn_id == NONE ) Init_Server_Struct( &Conf_Server[i] ); - else - { + else { /* This structure is in use ... */ - if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) - { + if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) { /* Check for duplicates */ - for( n = 0; n < MAX_SERVERS; n++ ) - { + for( n = 0; n < MAX_SERVERS; n++ ) { if( n == i ) continue; - if( Conf_Server[i].conn_id == Conf_Server[n].conn_id ) - { + if( Conf_Server[i].conn_id == Conf_Server[n].conn_id ) { Init_Server_Struct( &Conf_Server[n] ); - Log( LOG_DEBUG, "Deleted unused duplicate server %d (kept %d).", n, i ); +#ifdef DEBUG + Log(LOG_DEBUG,"Deleted unused duplicate server %d (kept %d).", + n, i ); +#endif } } - } - else - { + } else { /* Mark server as "once" */ Conf_Server[i].flags |= CONF_SFLAG_ONCE; Log( LOG_DEBUG, "Marked server %d as \"once\"", i ); @@ -447,10 +829,11 @@ Read_Config( void ) strcpy( section, "" ); Init_Server_Struct( &New_Server ); New_Server_Idx = NONE; - +#ifdef SSL_SUPPORT + ConfSSL_Init(); +#endif /* Read configuration file */ - while( true ) - { + while( true ) { if( ! fgets( str, LINE_LEN, fd )) break; ngt_TrimStr( str ); line++; @@ -459,31 +842,16 @@ Read_Config( void ) if( str[0] == ';' || str[0] == '#' || str[0] == '\0' ) continue; /* Is this the beginning of a new section? */ - if(( str[0] == '[' ) && ( str[strlen( str ) - 1] == ']' )) - { + if(( str[0] == '[' ) && ( str[strlen( str ) - 1] == ']' )) { strlcpy( section, str, sizeof( section )); - if( strcasecmp( section, "[GLOBAL]" ) == 0 ) continue; - if( strcasecmp( section, "[OPERATOR]" ) == 0 ) - { - if( Conf_Oper_Count + 1 > MAX_OPERATORS ) Config_Error( LOG_ERR, "Too many operators configured." ); - else - { - /* Initialize new operator structure */ - Conf_Oper[Conf_Oper_Count].name[0] = '\0'; - Conf_Oper[Conf_Oper_Count].pwd[0] = '\0'; - if (Conf_Oper[Conf_Oper_Count].mask) { - free(Conf_Oper[Conf_Oper_Count].mask ); - Conf_Oper[Conf_Oper_Count].mask = NULL; - } - Conf_Oper_Count++; - } + if (strcasecmp(section, "[GLOBAL]") == 0 || + strcasecmp(section, "[LIMITS]") == 0 || + strcasecmp(section, "[OPTIONS]") == 0) continue; - } - if( strcasecmp( section, "[SERVER]" ) == 0 ) - { + + if( strcasecmp( section, "[SERVER]" ) == 0 ) { /* Check if there is already a server to add */ - if( New_Server.name[0] ) - { + if( New_Server.name[0] ) { /* Copy data to "real" server structure */ assert( New_Server_Idx > NONE ); Conf_Server[New_Server_Idx] = New_Server; @@ -493,13 +861,11 @@ Read_Config( void ) Init_Server_Struct( &New_Server ); /* Search unused item in server configuration structure */ - for( i = 0; i < MAX_SERVERS; i++ ) - { + for( i = 0; i < MAX_SERVERS; i++ ) { /* Is this item used? */ if( ! Conf_Server[i].name[0] ) break; } - if( i >= MAX_SERVERS ) - { + if( i >= MAX_SERVERS ) { /* Oops, no free item found! */ Config_Error( LOG_ERR, "Too many servers configured." ); New_Server_Idx = NONE; @@ -507,28 +873,25 @@ Read_Config( void ) else New_Server_Idx = i; continue; } - if( strcasecmp( section, "[CHANNEL]" ) == 0 ) - { - if( Conf_Channel_Count + 1 > MAX_DEFCHANNELS ) Config_Error( LOG_ERR, "Too many pre-defined channels configured." ); - else - { - /* Initialize new channel structure */ - strcpy( Conf_Channel[Conf_Channel_Count].name, "" ); - strcpy( Conf_Channel[Conf_Channel_Count].modes, "" ); - strcpy( Conf_Channel[Conf_Channel_Count].topic, "" ); - Conf_Channel_Count++; - } + if (strcasecmp(section, "[CHANNEL]") == 0) { + Conf_Channel_Count++; + continue; + } + if (strcasecmp(section, "[OPERATOR]") == 0) { + Conf_Oper_Count++; continue; } - Config_Error( LOG_ERR, "%s, line %d: Unknown section \"%s\"!", NGIRCd_ConfFile, line, section ); + + Config_Error(LOG_ERR, + "%s, line %d: Unknown section \"%s\"!", + NGIRCd_ConfFile, line, section); section[0] = 0x1; } if( section[0] == 0x1 ) continue; /* Split line into variable name and parameters */ ptr = strchr( str, '=' ); - if( ! ptr ) - { + if( ! ptr ) { Config_Error( LOG_ERR, "%s, line %d: Syntax error!", NGIRCd_ConfFile, line ); continue; } @@ -536,34 +899,73 @@ Read_Config( void ) var = str; ngt_TrimStr( var ); arg = ptr + 1; ngt_TrimStr( arg ); - if( strcasecmp( section, "[GLOBAL]" ) == 0 ) Handle_GLOBAL( line, var, arg ); - else if( strcasecmp( section, "[OPERATOR]" ) == 0 ) Handle_OPERATOR( line, var, arg ); - else if( strcasecmp( section, "[SERVER]" ) == 0 ) Handle_SERVER( line, var, arg ); - else if( strcasecmp( section, "[CHANNEL]" ) == 0 ) Handle_CHANNEL( line, var, arg ); - else Config_Error( LOG_ERR, "%s, line %d: Variable \"%s\" outside section!", NGIRCd_ConfFile, line, var ); + if(strcasecmp(section, "[GLOBAL]") == 0) + Handle_GLOBAL(line, var, arg); + else if(strcasecmp(section, "[LIMITS]") == 0) + Handle_LIMITS(line, var, arg); + else if(strcasecmp(section, "[OPTIONS]") == 0) + Handle_OPTIONS(line, var, arg); + else if(strcasecmp(section, "[OPERATOR]") == 0) + Handle_OPERATOR(line, var, arg); + else if(strcasecmp(section, "[SERVER]") == 0) + Handle_SERVER(line, var, arg); + else if(strcasecmp(section, "[CHANNEL]") == 0) + Handle_CHANNEL(line, var, arg); + else + Config_Error(LOG_ERR, + "%s, line %d: Variable \"%s\" outside section!", + NGIRCd_ConfFile, line, var); } /* Close configuration file */ fclose( fd ); /* Check if there is still a server to add */ - if( New_Server.name[0] ) - { + if( New_Server.name[0] ) { /* Copy data to "real" server structure */ assert( New_Server_Idx > NONE ); Conf_Server[New_Server_Idx] = New_Server; } - - /* If there are no ports configured use the default: 6667 */ - if( Conf_ListenPorts_Count < 1 ) + + /* not a single listening port? Add default. */ + if (no_listenports() && + !array_copyb(&Conf_ListenPorts, (char*) &defaultport, sizeof defaultport)) { - Conf_ListenPorts_Count = 1; - Conf_ListenPorts[0] = 6667; + Config_Error(LOG_ALERT, "Could not add default listening Port %u: %s", + (unsigned int) defaultport, strerror(errno)); + + exit(1); } -} /* Read_Config */ + if (!Conf_ListenAddress) + Conf_ListenAddress = strdup_warn(DEFAULT_LISTEN_ADDRSTR); + + if (!Conf_ListenAddress) { + Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME); + exit(1); + } + + /* No MOTD phrase configured? (re)try motd file. */ + if (array_bytes(&Conf_Motd) == 0) + Read_Motd(Conf_MotdFile); + +#ifdef SSL_SUPPORT + /* Make sure that all SSL-related files are readable */ + CheckFileReadable("SSLCertFile", Conf_SSLOptions.CertFile); + CheckFileReadable("SSLDHFile", Conf_SSLOptions.DHFile); + CheckFileReadable("SSLKeyFile", Conf_SSLOptions.KeyFile); +#endif + + return true; +} -LOCAL bool +/** + * Check whether an string argument is true or false. + * + * @param Arg Input string. + * @returns true if string has been parsed as "yes"/"true"/"on". + */ +static bool Check_ArgIsTrue( const char *Arg ) { if( strcasecmp( Arg, "yes" ) == 0 ) return true; @@ -571,278 +973,606 @@ Check_ArgIsTrue( const char *Arg ) if( atoi( Arg ) != 0 ) return true; return false; -} /* Check_ArgIsTrue */ - +} -LOCAL void -Handle_GLOBAL( int Line, char *Var, char *Arg ) +/** + * Handle setting of "MaxNickLength". + * + * @param Line Line number in configuration file. + * @raram Arg Input string. + * @returns New configured maximum nick name length. + */ +static unsigned int +Handle_MaxNickLength(int Line, const char *Arg) { - struct passwd *pwd; - struct group *grp; - char *ptr; - long port; - - assert( Line > 0 ); - assert( Var != NULL ); - assert( Arg != NULL ); - - if( strcasecmp( Var, "Name" ) == 0 ) - { - /* Server name */ - if( strlcpy( Conf_ServerName, Arg, sizeof( Conf_ServerName )) >= sizeof( Conf_ServerName )) - Config_Error_TooLong( Line, Var ); - - return; + unsigned new; + + new = (unsigned) atoi(Arg) + 1; + if (new > CLIENT_NICK_LEN) { + Config_Error(LOG_WARNING, + "%s, line %d: Value of \"MaxNickLength\" exceeds %u!", + NGIRCd_ConfFile, Line, CLIENT_NICK_LEN - 1); + return CLIENT_NICK_LEN; } - if( strcasecmp( Var, "Info" ) == 0 ) - { - /* Info text of server */ - if( strlcpy( Conf_ServerInfo, Arg, sizeof( Conf_ServerInfo )) >= sizeof( Conf_ServerInfo )) - Config_Error_TooLong ( Line, Var ); + if (new < 2) { + Config_Error(LOG_WARNING, + "%s, line %d: Value of \"MaxNickLength\" must be at least 1!", + NGIRCd_ConfFile, Line); + return 2; + } + return new; +} - return; +/** + * Output a warning messages if IDENT is configured but not compiled in. + */ +static void +WarnIdent(int UNUSED Line) +{ +#ifndef IDENTAUTH + if (Conf_Ident) { + /* user has enabled ident lookups explicitly, but ... */ + Config_Error(LOG_WARNING, + "%s: line %d: \"Ident = yes\", but ngircd was built without IDENT support!", + NGIRCd_ConfFile, Line); } - if( strcasecmp( Var, "Password" ) == 0 ) - { - /* Global server password */ - if( strlcpy( Conf_ServerPwd, Arg, sizeof( Conf_ServerPwd )) >= sizeof( Conf_ServerPwd )) - Config_Error_TooLong( Line, Var ); +#endif +} +/** + * Output a warning messages if IPv6 is configured but not compiled in. + */ +static void +WarnIPv6(int UNUSED Line) +{ +#ifndef WANT_IPV6 + if (Conf_ConnectIPv6) { + /* user has enabled IPv6 explicitly, but ... */ + Config_Error(LOG_WARNING, + "%s: line %d: \"ConnectIPv6 = yes\", but ngircd was built without IPv6 support!", + NGIRCd_ConfFile, Line); + } +#endif +} + +/** + * Output a warning messages if PAM is configured but not compiled in. + */ +static void +WarnPAM(int UNUSED Line) +{ +#ifndef PAM + if (Conf_PAM) { + Config_Error(LOG_WARNING, + "%s: line %d: \"PAM = yes\", but ngircd was built without PAM support!", + NGIRCd_ConfFile, Line); + } +#endif +} + +/** + * Handle legacy "NoXXX" options in [GLOBAL] section. + * + * TODO: This function and support for "NoXXX" could be removed starting + * with ngIRCd release 19 (one release after marking it "deprecated"). + * + * @param Var Variable name. + * @param Arg Argument string. + * @returns true if a NoXXX option has been processed; false otherwise. + */ +static bool +CheckLegacyNoOption(const char *Var, const char *Arg) +{ + if(strcasecmp(Var, "NoDNS") == 0) { + Conf_DNS = !Check_ArgIsTrue( Arg ); + return true; + } + if (strcasecmp(Var, "NoIdent") == 0) { + Conf_Ident = !Check_ArgIsTrue(Arg); + return true; + } + if(strcasecmp(Var, "NoPAM") == 0) { + Conf_PAM = !Check_ArgIsTrue(Arg); + return true; + } + return false; +} + +/** + * Handle deprecated legacy options in [GLOBAL] section. + * + * TODO: This function and support for these options in the [Global] section + * could be removed starting with ngIRCd release 19 (one release after + * marking it "deprecated"). + * + * @param Var Variable name. + * @param Arg Argument string. + * @returns true if a legacy option has been processed; false otherwise. + */ +static const char* +CheckLegacyGlobalOption(int Line, char *Var, char *Arg) +{ + if (strcasecmp(Var, "AllowRemoteOper") == 0 + || strcasecmp(Var, "ChrootDir") == 0 + || strcasecmp(Var, "ConnectIPv4") == 0 + || strcasecmp(Var, "ConnectIPv6") == 0 + || strcasecmp(Var, "OperCanUseMode") == 0 + || strcasecmp(Var, "OperServerMode") == 0 + || strcasecmp(Var, "PredefChannelsOnly") == 0 +#ifdef SSL_SUPPORT + || strcasecmp(Var, "SSLCertFile") == 0 + || strcasecmp(Var, "SSLDHFile") == 0 + || strcasecmp(Var, "SSLKeyFile") == 0 + || strcasecmp(Var, "SSLKeyFilePassword") == 0 + || strcasecmp(Var, "SSLPorts") == 0 +#endif + || strcasecmp(Var, "SyslogFacility") == 0 + || strcasecmp(Var, "WebircPassword") == 0) { + Handle_OPTIONS(Line, Var, Arg); + return "[Options]"; + } + if (strcasecmp(Var, "ConnectRetry") == 0 + || strcasecmp(Var, "MaxConnections") == 0 + || strcasecmp(Var, "MaxConnectionsIP") == 0 + || strcasecmp(Var, "MaxJoins") == 0 + || strcasecmp(Var, "MaxNickLength") == 0 + || strcasecmp(Var, "PingTimeout") == 0 + || strcasecmp(Var, "PongTimeout") == 0) { + Handle_LIMITS(Line, Var, Arg); + return "[Limits]"; + } + + return NULL; +} + +/** + * Strip "no" prefix of a string. + * + * TODO: This function and support for "NoXXX" should be removed starting + * with ngIRCd release 19! (One release after marking it "deprecated"). + * + * @param str Pointer to input string starting with "no". + * @returns New pointer to string without "no" prefix. + */ +static const char * +NoNo(const char *str) +{ + assert(strncasecmp("no", str, 2) == 0 && str[2]); + return str + 2; +} + +/** + * Invert "boolean" string. + * + * TODO: This function and support for "NoXXX" should be removed starting + * with ngIRCd release 19! (One release after marking it "deprecated"). + * + * @param arg "Boolean" input string. + * @returns Pointer to inverted "boolean string". + */ +static const char * +InvertArg(const char *arg) +{ + return yesno_to_str(!Check_ArgIsTrue(arg)); +} + +/** + * Handle variable in [Global] configuration section. + * + * @param Line Line numer in configuration file. + * @param Var Variable name. + * @param Arg Variable argument. + */ +static void +Handle_GLOBAL( int Line, char *Var, char *Arg ) +{ + struct passwd *pwd; + struct group *grp; + size_t len; + const char *section; + + assert(Line > 0); + assert(Var != NULL); + assert(Arg != NULL); + + if (strcasecmp(Var, "Name") == 0) { + len = strlcpy(Conf_ServerName, Arg, sizeof(Conf_ServerName)); + if (len >= sizeof(Conf_ServerName)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "AdminInfo1" ) == 0 ) - { - /* Administrative info #1 */ - if( strlcpy( Conf_ServerAdmin1, Arg, sizeof( Conf_ServerAdmin1 )) >= sizeof( Conf_ServerAdmin1 )) Config_Error_TooLong ( Line, Var ); + if (strcasecmp(Var, "AdminInfo1") == 0) { + len = strlcpy(Conf_ServerAdmin1, Arg, sizeof(Conf_ServerAdmin1)); + if (len >= sizeof(Conf_ServerAdmin1)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "AdminInfo2" ) == 0 ) - { - /* Administrative info #2 */ - if( strlcpy( Conf_ServerAdmin2, Arg, sizeof( Conf_ServerAdmin2 )) >= sizeof( Conf_ServerAdmin2 )) Config_Error_TooLong ( Line, Var ); + if (strcasecmp(Var, "AdminInfo2") == 0) { + len = strlcpy(Conf_ServerAdmin2, Arg, sizeof(Conf_ServerAdmin2)); + if (len >= sizeof(Conf_ServerAdmin2)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "AdminEMail" ) == 0 ) - { - /* Administrative email contact */ - if( strlcpy( Conf_ServerAdminMail, Arg, sizeof( Conf_ServerAdminMail )) >= sizeof( Conf_ServerAdminMail )) Config_Error_TooLong( Line, Var ); + if (strcasecmp(Var, "AdminEMail") == 0) { + len = strlcpy(Conf_ServerAdminMail, Arg, + sizeof(Conf_ServerAdminMail)); + if (len >= sizeof(Conf_ServerAdminMail)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "Ports" ) == 0 ) - { - /* Ports on that the server should listen. More port numbers - * must be separated by "," */ - ptr = strtok( Arg, "," ); - while( ptr ) - { - ngt_TrimStr( ptr ); - port = atol( ptr ); - if( Conf_ListenPorts_Count + 1 > MAX_LISTEN_PORTS ) Config_Error( LOG_ERR, "Too many listen ports configured. Port %ld ignored.", port ); - else - { - if( port > 0 && port < 0xFFFF ) Conf_ListenPorts[Conf_ListenPorts_Count++] = (UINT16)port; - else Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Illegal port number %ld!", NGIRCd_ConfFile, Line, port ); - } - ptr = strtok( NULL, "," ); + if (strcasecmp(Var, "Info") == 0) { + len = strlcpy(Conf_ServerInfo, Arg, sizeof(Conf_ServerInfo)); + if (len >= sizeof(Conf_ServerInfo)) + Config_Error_TooLong(Line, Var); + return; + } + if (strcasecmp(Var, "Listen") == 0) { + if (Conf_ListenAddress) { + Config_Error(LOG_ERR, + "Multiple Listen= options, ignoring: %s", + Arg); + return; + } + Conf_ListenAddress = strdup_warn(Arg); + /* If allocation fails, we're in trouble: we cannot ignore the + * error -- otherwise ngircd would listen on all interfaces. */ + if (!Conf_ListenAddress) { + Config_Error(LOG_ALERT, + "%s exiting due to fatal errors!", + PACKAGE_NAME); + exit(1); } return; } - if( strcasecmp( Var, "MotdFile" ) == 0 ) - { - /* "Message of the day" (MOTD) file */ - if( strlcpy( Conf_MotdFile, Arg, sizeof( Conf_MotdFile )) >= sizeof( Conf_MotdFile )) - Config_Error_TooLong( Line, Var ); - + if (strcasecmp(Var, "MotdFile") == 0) { + len = strlcpy(Conf_MotdFile, Arg, sizeof(Conf_MotdFile)); + if (len >= sizeof(Conf_MotdFile)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "MotdPhrase" ) == 0 ) - { - /* "Message of the day" phrase (instead of file) */ - if( strlcpy( Conf_MotdPhrase, Arg, sizeof( Conf_MotdPhrase )) >= sizeof( Conf_MotdPhrase )) - Config_Error_TooLong( Line, Var ); - + if (strcasecmp(Var, "MotdPhrase") == 0) { + len = strlen(Arg); + if (len == 0) + return; + if (len >= LINE_LEN) { + Config_Error_TooLong(Line, Var); + return; + } + if (!array_copyb(&Conf_Motd, Arg, len + 1)) + Config_Error(LOG_WARNING, + "%s, line %d: Could not append MotdPhrase: %s", + NGIRCd_ConfFile, Line, strerror(errno)); + Using_MotdFile = false; return; } - if( strcasecmp( Var, "ChrootDir" ) == 0 ) - { - /* directory for chroot() */ - if( strlcpy( Conf_Chroot, Arg, sizeof( Conf_Chroot )) >= sizeof( Conf_Chroot )) - Config_Error_TooLong( Line, Var ); - + if(strcasecmp(Var, "Password") == 0) { + len = strlcpy(Conf_ServerPwd, Arg, sizeof(Conf_ServerPwd)); + if (len >= sizeof(Conf_ServerPwd)) + Config_Error_TooLong(Line, Var); + return; + } + if (strcasecmp(Var, "PidFile") == 0) { + len = strlcpy(Conf_PidFile, Arg, sizeof(Conf_PidFile)); + if (len >= sizeof(Conf_PidFile)) + Config_Error_TooLong(Line, Var); + return; + } + if (strcasecmp(Var, "Ports") == 0) { + ports_parse(&Conf_ListenPorts, Line, Arg); + return; + } + if (strcasecmp(Var, "ServerGID") == 0) { + grp = getgrnam(Arg); + if (grp) + Conf_GID = grp->gr_gid; + else { + Conf_GID = (unsigned int)atoi(Arg); + if (!Conf_GID && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); + } + return; + } + if (strcasecmp(Var, "ServerUID") == 0) { + pwd = getpwnam(Arg); + if (pwd) + Conf_UID = pwd->pw_uid; + else { + Conf_UID = (unsigned int)atoi(Arg); + if (!Conf_UID && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); + } return; } - if ( strcasecmp( Var, "PidFile" ) == 0 ) - { - /* name of pidfile */ - if( strlcpy( Conf_PidFile, Arg, sizeof( Conf_PidFile )) >= sizeof( Conf_PidFile )) - Config_Error_TooLong( Line, Var ); - + if (CheckLegacyNoOption(Var, Arg)) { + /* TODO: This function and support for "NoXXX" could be + * be removed starting with ngIRCd release 19 (one release + * after marking it "deprecated"). */ + Config_Error(LOG_WARNING, + "%s, line %d (section \"Global\"): \"No\"-Prefix is deprecated, use \"%s = %s\" in [Options] section!", + NGIRCd_ConfFile, Line, NoNo(Var), InvertArg(Arg)); + if (strcasecmp(Var, "NoIdent") == 0) + WarnIdent(Line); + else if (strcasecmp(Var, "NoPam") == 0) + WarnPAM(Line); + return; + } + if ((section = CheckLegacyGlobalOption(Line, Var, Arg))) { + /** TODO: This function and support for these options in the + * [Global] section could be removed starting with ngIRCd + * release 19 (one release after marking it "deprecated"). */ + Config_Error(LOG_WARNING, + "%s, line %d (section \"Global\"): \"%s\" is deprecated here, move it to %s!", + NGIRCd_ConfFile, Line, Var, section); return; } - if( strcasecmp( Var, "ServerUID" ) == 0 ) - { - /* UID the daemon should switch to */ - pwd = getpwnam( Arg ); - if( pwd ) Conf_UID = pwd->pw_uid; - else - { -#ifdef HAVE_ISDIGIT - if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var ); - else -#endif - Conf_UID = (unsigned int)atoi( Arg ); + Config_Error_Section(Line, Var, "Global"); +} + +/** + * Handle variable in [Limits] configuration section. + * + * @param Line Line numer in configuration file. + * @param Var Variable name. + * @param Arg Variable argument. + */ +static void +Handle_LIMITS(int Line, char *Var, char *Arg) +{ + assert(Line > 0); + assert(Var != NULL); + assert(Arg != NULL); + + if (strcasecmp(Var, "ConnectRetry") == 0) { + Conf_ConnectRetry = atoi(Arg); + if (Conf_ConnectRetry < 5) { + Config_Error(LOG_WARNING, + "%s, line %d: Value of \"ConnectRetry\" too low!", + NGIRCd_ConfFile, Line); + Conf_ConnectRetry = 5; } return; } - if( strcasecmp( Var, "ServerGID" ) == 0 ) - { - /* GID the daemon should use */ - grp = getgrnam( Arg ); - if( grp ) Conf_GID = grp->gr_gid; - else - { -#ifdef HAVE_ISDIGIT - if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var ); - else -#endif - Conf_GID = (unsigned int)atoi( Arg ); - } + if (strcasecmp(Var, "MaxConnections") == 0) { + Conf_MaxConnections = atol(Arg); + if (!Conf_MaxConnections && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); return; } - if( strcasecmp( Var, "PingTimeout" ) == 0 ) - { - /* PING timeout */ - Conf_PingTimeout = atoi( Arg ); - if( Conf_PingTimeout < 5 ) - { - Config_Error( LOG_WARNING, "%s, line %d: Value of \"PingTimeout\" too low!", NGIRCd_ConfFile, Line ); + if (strcasecmp(Var, "MaxConnectionsIP") == 0) { + Conf_MaxConnectionsIP = atoi(Arg); + if (!Conf_MaxConnectionsIP && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); + return; + } + if (strcasecmp(Var, "MaxJoins") == 0) { + Conf_MaxJoins = atoi(Arg); + if (!Conf_MaxJoins && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); + return; + } + if (strcasecmp(Var, "MaxNickLength") == 0) { + Conf_MaxNickLength = Handle_MaxNickLength(Line, Arg); + return; + } + if (strcasecmp(Var, "PingTimeout") == 0) { + Conf_PingTimeout = atoi(Arg); + if (Conf_PingTimeout < 5) { + Config_Error(LOG_WARNING, + "%s, line %d: Value of \"PingTimeout\" too low!", + NGIRCd_ConfFile, Line); Conf_PingTimeout = 5; } return; } - if( strcasecmp( Var, "PongTimeout" ) == 0 ) - { - /* PONG timeout */ - Conf_PongTimeout = atoi( Arg ); - if( Conf_PongTimeout < 5 ) - { - Config_Error( LOG_WARNING, "%s, line %d: Value of \"PongTimeout\" too low!", NGIRCd_ConfFile, Line ); + if (strcasecmp(Var, "PongTimeout") == 0) { + Conf_PongTimeout = atoi(Arg); + if (Conf_PongTimeout < 5) { + Config_Error(LOG_WARNING, + "%s, line %d: Value of \"PongTimeout\" too low!", + NGIRCd_ConfFile, Line); Conf_PongTimeout = 5; } return; } - if( strcasecmp( Var, "ConnectRetry" ) == 0 ) - { - /* Seconds between connection attempts to other servers */ - Conf_ConnectRetry = atoi( Arg ); - if( Conf_ConnectRetry < 5 ) - { - Config_Error( LOG_WARNING, "%s, line %d: Value of \"ConnectRetry\" too low!", NGIRCd_ConfFile, Line ); - Conf_ConnectRetry = 5; - } + + Config_Error_Section(Line, Var, "Limits"); +} + +/** + * Handle variable in [Options] configuration section. + * + * @param Line Line numer in configuration file. + * @param Var Variable name. + * @param Arg Variable argument. + */ +static void +Handle_OPTIONS(int Line, char *Var, char *Arg) +{ + size_t len; + + assert(Line > 0); + assert(Var != NULL); + assert(Arg != NULL); + + if (strcasecmp(Var, "AllowRemoteOper") == 0) { + Conf_AllowRemoteOper = Check_ArgIsTrue(Arg); return; } - if( strcasecmp( Var, "OperCanUseMode" ) == 0 ) - { - /* Are IRC operators allowed to use MODE in channels they aren't Op in? */ - Conf_OperCanMode = Check_ArgIsTrue( Arg ); + if (strcasecmp(Var, "ChrootDir") == 0) { + len = strlcpy(Conf_Chroot, Arg, sizeof(Conf_Chroot)); + if (len >= sizeof(Conf_Chroot)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "OperServerMode" ) == 0 ) - { - /* Mask IRC operator as if coming from the server? (ircd-irc2 compat hack) */ - Conf_OperServerMode = Check_ArgIsTrue( Arg ); + if (strcasecmp(Var, "CloakHost") == 0) { + len = strlcpy(Conf_CloakHost, Arg, sizeof(Conf_CloakHost)); + if (len >= sizeof(Conf_CloakHost)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "MaxConnections" ) == 0 ) - { - /* Maximum number of connections. Values <= 0 are equal to "no limit". */ -#ifdef HAVE_ISDIGIT - if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var); - else -#endif - Conf_MaxConnections = atol( Arg ); + if (strcasecmp(Var, "CloakUserToNick") == 0) { + Conf_CloakUserToNick = Check_ArgIsTrue(Arg); + return; + } + if (strcasecmp(Var, "ConnectIPv6") == 0) { + Conf_ConnectIPv6 = Check_ArgIsTrue(Arg); + WarnIPv6(Line); + return; + } + if (strcasecmp(Var, "ConnectIPv4") == 0) { + Conf_ConnectIPv4 = Check_ArgIsTrue(Arg); + return; + } + if (strcasecmp(Var, "DNS") == 0) { + Conf_DNS = Check_ArgIsTrue(Arg); + return; + } + if (strcasecmp(Var, "Ident") == 0) { + Conf_Ident = Check_ArgIsTrue(Arg); + WarnIdent(Line); + return; + } + if (strcasecmp(Var, "NoticeAuth") == 0) { + Conf_NoticeAuth = Check_ArgIsTrue(Arg); + return; + } + if (strcasecmp(Var, "OperCanUseMode") == 0) { + Conf_OperCanMode = Check_ArgIsTrue(Arg); + return; + } + if (strcasecmp(Var, "OperServerMode") == 0) { + Conf_OperServerMode = Check_ArgIsTrue(Arg); + return; + } + if (strcasecmp(Var, "PAM") == 0) { + Conf_PAM = Check_ArgIsTrue(Arg); + WarnPAM(Line); + return; + } + if (strcasecmp(Var, "PredefChannelsOnly") == 0) { + Conf_PredefChannelsOnly = Check_ArgIsTrue(Arg); + return; + } +#ifndef STRICT_RFC + if (strcasecmp(Var, "RequireAuthPing") == 0) { + Conf_AuthPing = Check_ArgIsTrue(Arg); return; } - if( strcasecmp( Var, "MaxConnectionsIP" ) == 0 ) - { - /* Maximum number of simoultanous connections from one IP. Values <= 0 are equal to "no limit". */ -#ifdef HAVE_ISDIGIT - if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var ); - else #endif - Conf_MaxConnectionsIP = atoi( Arg ); + if (strcasecmp(Var, "ScrubCTCP") == 0) { + Conf_ScrubCTCP = Check_ArgIsTrue(Arg); + return; + } +#ifdef SSL_SUPPORT + if (strcasecmp(Var, "SSLCertFile") == 0) { + assert(Conf_SSLOptions.CertFile == NULL); + Conf_SSLOptions.CertFile = strdup_warn(Arg); + return; + } + if (strcasecmp(Var, "SSLDHFile") == 0) { + assert(Conf_SSLOptions.DHFile == NULL); + Conf_SSLOptions.DHFile = strdup_warn(Arg); + return; + } + if (strcasecmp(Var, "SSLKeyFile") == 0) { + assert(Conf_SSLOptions.KeyFile == NULL); + Conf_SSLOptions.KeyFile = strdup_warn(Arg); + return; + } + if (strcasecmp(Var, "SSLKeyFilePassword") == 0) { + assert(array_bytes(&Conf_SSLOptions.KeyFilePassword) == 0); + if (!array_copys(&Conf_SSLOptions.KeyFilePassword, Arg)) + Config_Error(LOG_ERR, + "%s, line %d (section \"Global\"): Could not copy %s: %s!", + NGIRCd_ConfFile, Line, Var, + strerror(errno)); + return; + } + if (strcasecmp(Var, "SSLPorts") == 0) { + ports_parse(&Conf_SSLOptions.ListenPorts, Line, Arg); return; } - if( strcasecmp( Var, "MaxJoins" ) == 0 ) - { - /* Maximum number of channels a user can join. Values <= 0 are equal to "no limit". */ -#ifdef HAVE_ISDIGIT - if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var ); - else #endif - Conf_MaxJoins = atoi( Arg ); +#ifdef SYSLOG + if (strcasecmp(Var, "SyslogFacility") == 0) { + Conf_SyslogFacility = ngt_SyslogFacilityID(Arg, + Conf_SyslogFacility); return; } - if( strcasecmp( Var, "Listen" ) == 0 ) - { - /* IP-Address to bind sockets */ - if( strlcpy( Conf_ListenAddress, Arg, sizeof( Conf_ListenAddress )) >= sizeof( Conf_ListenAddress )) - { - Config_Error_TooLong( Line, Var ); - } +#endif + if (strcasecmp(Var, "WebircPassword") == 0) { + len = strlcpy(Conf_WebircPwd, Arg, sizeof(Conf_WebircPwd)); + if (len >= sizeof(Conf_WebircPwd)) + Config_Error_TooLong(Line, Var); return; } - Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var ); -} /* Handle_GLOBAL */ - + Config_Error_Section(Line, Var, "Options"); +} -LOCAL void +/** + * Handle variable in [Operator] configuration section. + * + * @param Line Line numer in configuration file. + * @param Var Variable name. + * @param Arg Variable argument. + */ +static void Handle_OPERATOR( int Line, char *Var, char *Arg ) { - unsigned int len; + size_t len; + struct Conf_Oper *op; + assert( Line > 0 ); assert( Var != NULL ); assert( Arg != NULL ); assert( Conf_Oper_Count > 0 ); - if( strcasecmp( Var, "Name" ) == 0 ) - { + op = array_alloc(&Conf_Opers, sizeof(*op), Conf_Oper_Count - 1); + if (!op) { + Config_Error(LOG_ERR, "Could not allocate memory for operator (%d:%s = %s)", Line, Var, Arg); + return; + } + + if (strcasecmp(Var, "Name") == 0) { /* Name of IRC operator */ - if( strlcpy( Conf_Oper[Conf_Oper_Count - 1].name, Arg, sizeof( Conf_Oper[Conf_Oper_Count - 1].name )) >= sizeof( Conf_Oper[Conf_Oper_Count - 1].name )) Config_Error_TooLong( Line, Var ); + len = strlcpy(op->name, Arg, sizeof(op->name)); + if (len >= sizeof(op->name)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "Password" ) == 0 ) - { + if (strcasecmp(Var, "Password") == 0) { /* Password of IRC operator */ - if( strlcpy( Conf_Oper[Conf_Oper_Count - 1].pwd, Arg, sizeof( Conf_Oper[Conf_Oper_Count - 1].pwd )) >= sizeof( Conf_Oper[Conf_Oper_Count - 1].pwd )) Config_Error_TooLong( Line, Var ); + len = strlcpy(op->pwd, Arg, sizeof(op->pwd)); + if (len >= sizeof(op->pwd)) + Config_Error_TooLong(Line, Var); return; } - if( strcasecmp( Var, "Mask" ) == 0 ) - { - if (Conf_Oper[Conf_Oper_Count - 1].mask) return; /* Hostname already configured */ - len = strlen( Arg ) + 1; - Conf_Oper[Conf_Oper_Count - 1].mask = malloc( len ); - if (! Conf_Oper[Conf_Oper_Count - 1].mask) { - Config_Error( LOG_ERR, "%s, line %d: Cannot allocate memory for operator mask: %s", NGIRCd_ConfFile, Line, strerror(errno) ); - return; - } - - strlcpy( Conf_Oper[Conf_Oper_Count - 1].mask, Arg, len); + if (strcasecmp(Var, "Mask") == 0) { + if (op->mask) + return; /* Hostname already configured */ + op->mask = strdup_warn( Arg ); return; } - Config_Error( LOG_ERR, "%s, line %d (section \"Operator\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var ); -} /* Handle_OPERATOR */ + Config_Error_Section(Line, Var, "Operator"); +} -LOCAL void +/** + * Handle variable in [Server] configuration section. + * + * @param Line Line numer in configuration file. + * @param Var Variable name. + * @param Arg Variable argument. + */ +static void Handle_SERVER( int Line, char *Var, char *Arg ) { long port; - + size_t len; + assert( Line > 0 ); assert( Var != NULL ); assert( Arg != NULL ); @@ -850,187 +1580,352 @@ Handle_SERVER( int Line, char *Var, char *Arg ) /* Ignore server block if no space is left in server configuration structure */ if( New_Server_Idx <= NONE ) return; - if( strcasecmp( Var, "Host" ) == 0 ) - { + if( strcasecmp( Var, "Host" ) == 0 ) { /* Hostname of the server */ - if( strlcpy( New_Server.host, Arg, sizeof( New_Server.host )) >= sizeof( New_Server.host )) + len = strlcpy( New_Server.host, Arg, sizeof( New_Server.host )); + if (len >= sizeof( New_Server.host )) Config_Error_TooLong ( Line, Var ); - return; } - if( strcasecmp( Var, "Name" ) == 0 ) - { + if( strcasecmp( Var, "Name" ) == 0 ) { /* Name of the server ("Nick"/"ID") */ - if( strlcpy( New_Server.name, Arg, sizeof( New_Server.name )) >= sizeof( New_Server.name )) + len = strlcpy( New_Server.name, Arg, sizeof( New_Server.name )); + if (len >= sizeof( New_Server.name )) Config_Error_TooLong( Line, Var ); return; } - if( strcasecmp( Var, "MyPassword" ) == 0 ) - { + if (strcasecmp(Var, "Bind") == 0) { + if (ng_ipaddr_init(&New_Server.bind_addr, Arg, 0)) + return; + + Config_Error(LOG_ERR, "%s, line %d (section \"Server\"): Can't parse IP address \"%s\"", + NGIRCd_ConfFile, Line, Arg); + return; + } + if( strcasecmp( Var, "MyPassword" ) == 0 ) { /* Password of this server which is sent to the peer */ - if( strlcpy( New_Server.pwd_in, Arg, sizeof( New_Server.pwd_in )) >= sizeof( New_Server.pwd_in )) Config_Error_TooLong( Line, Var ); + if (*Arg == ':') { + Config_Error(LOG_ERR, + "%s, line %d (section \"Server\"): MyPassword must not start with ':'!", + NGIRCd_ConfFile, Line); + } + len = strlcpy( New_Server.pwd_in, Arg, sizeof( New_Server.pwd_in )); + if (len >= sizeof( New_Server.pwd_in )) + Config_Error_TooLong( Line, Var ); return; } - if( strcasecmp( Var, "PeerPassword" ) == 0 ) - { + if( strcasecmp( Var, "PeerPassword" ) == 0 ) { /* Passwort of the peer which must be received */ - if( strlcpy( New_Server.pwd_out, Arg, sizeof( New_Server.pwd_out )) >= sizeof( New_Server.pwd_out )) Config_Error_TooLong( Line, Var ); + len = strlcpy( New_Server.pwd_out, Arg, sizeof( New_Server.pwd_out )); + if (len >= sizeof( New_Server.pwd_out )) + Config_Error_TooLong( Line, Var ); return; } - if( strcasecmp( Var, "Port" ) == 0 ) - { + if( strcasecmp( Var, "Port" ) == 0 ) { /* Port to which this server should connect */ port = atol( Arg ); - if( port > 0 && port < 0xFFFF ) New_Server.port = (UINT16)port; - else Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Illegal port number %ld!", NGIRCd_ConfFile, Line, port ); + if (port >= 0 && port < 0xFFFF) + New_Server.port = (UINT16)port; + else + Config_Error(LOG_ERR, + "%s, line %d (section \"Server\"): Illegal port number %ld!", + NGIRCd_ConfFile, Line, port ); return; } - if( strcasecmp( Var, "Group" ) == 0 ) - { - /* Server group */ -#ifdef HAVE_ISDIGIT - if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var ); - else +#ifdef SSL_SUPPORT + if( strcasecmp( Var, "SSLConnect" ) == 0 ) { + New_Server.SSLConnect = Check_ArgIsTrue(Arg); + return; + } #endif + if( strcasecmp( Var, "Group" ) == 0 ) { + /* Server group */ New_Server.group = atoi( Arg ); + if (!New_Server.group && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); + return; + } + if( strcasecmp( Var, "Passive" ) == 0 ) { + if (Check_ArgIsTrue(Arg)) + New_Server.flags |= CONF_SFLAG_DISABLED; + return; + } + if (strcasecmp(Var, "ServiceMask") == 0) { + len = strlcpy(New_Server.svs_mask, ngt_LowerStr(Arg), + sizeof(New_Server.svs_mask)); + if (len >= sizeof(New_Server.svs_mask)) + Config_Error_TooLong(Line, Var); return; } - - Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var ); -} /* Handle_SERVER */ + Config_Error_Section(Line, Var, "Server"); +} -LOCAL void -Handle_CHANNEL( int Line, char *Var, char *Arg ) +/** + * Copy channel name into channel structure. + * + * If the channel name is not valid because of a missing prefix ('#', '&'), + * a default prefix of '#' will be added. + * + * @param new_chan New already allocated channel structure. + * @param name Name of the new channel. + * @returns true on success, false otherwise. + */ +static bool +Handle_Channelname(struct Conf_Channel *new_chan, const char *name) { + size_t size = sizeof(new_chan->name); + char *dest = new_chan->name; + + if (!Channel_IsValidName(name)) { + /* + * maybe user forgot to add a '#'. + * This is only here for user convenience. + */ + *dest = '#'; + --size; + ++dest; + } + return size > strlcpy(dest, name, size); +} + +/** + * Handle variable in [Channel] configuration section. + * + * @param Line Line numer in configuration file. + * @param Var Variable name. + * @param Arg Variable argument. + */ +static void +Handle_CHANNEL(int Line, char *Var, char *Arg) +{ + size_t len; + size_t chancount; + struct Conf_Channel *chan; + assert( Line > 0 ); assert( Var != NULL ); assert( Arg != NULL ); + assert(Conf_Channel_Count > 0); - if( strcasecmp( Var, "Name" ) == 0 ) - { - /* Name of the channel */ - if( strlcpy( Conf_Channel[Conf_Channel_Count - 1].name, Arg, sizeof( Conf_Channel[Conf_Channel_Count - 1].name )) >= sizeof( Conf_Channel[Conf_Channel_Count - 1].name )) - Config_Error_TooLong( Line, Var ); + chancount = Conf_Channel_Count - 1; + + chan = array_alloc(&Conf_Channels, sizeof(*chan), chancount); + if (!chan) { + Config_Error(LOG_ERR, "Could not allocate memory for predefined channel (%d:%s = %s)", Line, Var, Arg); return; } - if( strcasecmp( Var, "Modes" ) == 0 ) - { + if (strcasecmp(Var, "Name") == 0) { + if (!Handle_Channelname(chan, Arg)) + Config_Error_TooLong(Line, Var); + return; + } + if (strcasecmp(Var, "Modes") == 0) { /* Initial modes */ - if( strlcpy( Conf_Channel[Conf_Channel_Count - 1].modes, Arg, sizeof( Conf_Channel[Conf_Channel_Count - 1].modes )) >= sizeof( Conf_Channel[Conf_Channel_Count - 1].modes )) + len = strlcpy(chan->modes, Arg, sizeof(chan->modes)); + if (len >= sizeof(chan->modes)) Config_Error_TooLong( Line, Var ); return; } - if( strcasecmp( Var, "Topic" ) == 0 ) - { + if( strcasecmp( Var, "Topic" ) == 0 ) { /* Initial topic */ - if( strlcpy( Conf_Channel[Conf_Channel_Count - 1].topic, Arg, sizeof( Conf_Channel[Conf_Channel_Count - 1].topic )) >= sizeof( Conf_Channel[Conf_Channel_Count - 1].topic )) + len = strlcpy(chan->topic, Arg, sizeof(chan->topic)); + if (len >= sizeof(chan->topic)) Config_Error_TooLong( Line, Var ); - + return; + } + if( strcasecmp( Var, "Key" ) == 0 ) { + /* Initial Channel Key (mode k) */ + len = strlcpy(chan->key, Arg, sizeof(chan->key)); + if (len >= sizeof(chan->key)) + Config_Error_TooLong(Line, Var); + return; + } + if( strcasecmp( Var, "MaxUsers" ) == 0 ) { + /* maximum user limit, mode l */ + chan->maxusers = (unsigned long) atol(Arg); + if (!chan->maxusers && strcmp(Arg, "0")) + Config_Error_NaN(Line, Var); + return; + } + if (strcasecmp(Var, "KeyFile") == 0) { + /* channel keys */ + len = strlcpy(chan->keyfile, Arg, sizeof(chan->keyfile)); + if (len >= sizeof(chan->keyfile)) + Config_Error_TooLong(Line, Var); return; } - Config_Error( LOG_ERR, "%s, line %d (section \"Channel\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var ); -} /* Handle_CHANNEL */ - + Config_Error_Section(Line, Var, "Channel"); +} -LOCAL void -Validate_Config( bool Configtest ) +/** + * Validate server configuration. + * + * Please note that this function uses exit(1) on fatal errors and therefore + * can result in ngIRCd terminating! + * + * @param Configtest true if the daemon has been called with "--configtest". + * @param Rehash true if re-reading configuration on runtime. + * @returns true if configuration is valid. + */ +static bool +Validate_Config(bool Configtest, bool Rehash) { /* Validate configuration settings. */ #ifdef DEBUG int i, servers, servers_once; #endif + bool config_valid = true; + char *ptr; - if( ! Conf_ServerName[0] ) - { + /* Validate configured server name, see RFC 2812 section 2.3.1 */ + ptr = Conf_ServerName; + do { + if (*ptr >= 'a' && *ptr <= 'z') continue; + if (*ptr >= 'A' && *ptr <= 'Z') continue; + if (*ptr >= '0' && *ptr <= '9') continue; + if (ptr > Conf_ServerName) { + if (*ptr == '.' || *ptr == '-') + continue; + } + Conf_ServerName[0] = '\0'; + break; + } while (*(++ptr)); + + if (!Conf_ServerName[0]) { /* No server name configured! */ - Config_Error( LOG_ALERT, "No server name configured in \"%s\" (section 'Global': 'Name')!", NGIRCd_ConfFile ); - if( ! Configtest ) - { - Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME ); - exit( 1 ); + config_valid = false; + Config_Error(LOG_ALERT, + "No (valid) server name configured in \"%s\" (section 'Global': 'Name')!", + NGIRCd_ConfFile); + if (!Configtest && !Rehash) { + Config_Error(LOG_ALERT, + "%s exiting due to fatal errors!", + PACKAGE_NAME); + exit(1); } } - - if( Conf_ServerName[0] && ! strchr( Conf_ServerName, '.' )) - { + + if (Conf_ServerName[0] && !strchr(Conf_ServerName, '.')) { /* No dot in server name! */ - Config_Error( LOG_ALERT, "Invalid server name configured in \"%s\" (section 'Global': 'Name'): Dot missing!", NGIRCd_ConfFile ); - if( ! Configtest ) - { - Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME ); - exit( 1 ); + config_valid = false; + Config_Error(LOG_ALERT, + "Invalid server name configured in \"%s\" (section 'Global': 'Name'): Dot missing!", + NGIRCd_ConfFile); + if (!Configtest) { + Config_Error(LOG_ALERT, + "%s exiting due to fatal errors!", + PACKAGE_NAME); + exit(1); } } #ifdef STRICT_RFC - if( ! Conf_ServerAdminMail[0] ) - { + if (!Conf_ServerAdminMail[0]) { /* No administrative contact configured! */ - Config_Error( LOG_ALERT, "No administrator email address configured in \"%s\" ('AdminEMail')!", NGIRCd_ConfFile ); - if( ! Configtest ) - { - Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME ); - exit( 1 ); + config_valid = false; + Config_Error(LOG_ALERT, + "No administrator email address configured in \"%s\" ('AdminEMail')!", + NGIRCd_ConfFile); + if (!Configtest) { + Config_Error(LOG_ALERT, + "%s exiting due to fatal errors!", + PACKAGE_NAME); + exit(1); } } #endif - if( ! Conf_ServerAdmin1[0] && ! Conf_ServerAdmin2[0] && ! Conf_ServerAdminMail[0] ) - { + if (!Conf_ServerAdmin1[0] && !Conf_ServerAdmin2[0] + && !Conf_ServerAdminMail[0]) { /* No administrative information configured! */ - Config_Error( LOG_WARNING, "No administrative information configured but required by RFC!" ); - } -#ifdef FD_SETSIZE - if(( Conf_MaxConnections > (long)FD_SETSIZE ) || ( Conf_MaxConnections < 1 )) - { - Conf_MaxConnections = (long)FD_SETSIZE; - Config_Error( LOG_ERR, "Setting MaxConnections to %ld, select() can't handle more file descriptors!", Conf_MaxConnections ); + Config_Error(LOG_WARNING, + "No administrative information configured but required by RFC!"); } -#else - Config_Error( LOG_WARN, "Don't know how many file descriptors select() can handle on this system, don't set MaxConnections too high!" ); + +#ifdef PAM + if (Conf_ServerPwd[0]) + Config_Error(LOG_ERR, + "This server uses PAM, \"Password\" will be ignored!"); #endif #ifdef DEBUG servers = servers_once = 0; - for( i = 0; i < MAX_SERVERS; i++ ) - { - if( Conf_Server[i].name[0] ) - { + for (i = 0; i < MAX_SERVERS; i++) { + if (Conf_Server[i].name[0]) { servers++; - if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) servers_once++; + if (Conf_Server[i].flags & CONF_SFLAG_ONCE) + servers_once++; } } - Log( LOG_DEBUG, "Configuration: Operators=%d, Servers=%d[%d], Channels=%d", Conf_Oper_Count, servers, servers_once, Conf_Channel_Count ); + Log(LOG_DEBUG, + "Configuration: Operators=%d, Servers=%d[%d], Channels=%d", + Conf_Oper_Count, servers, servers_once, Conf_Channel_Count); #endif -} /* Validate_Config */ + return config_valid; +} -LOCAL void +/** + * Output "line too long" warning. + * + * @param Line Line number in configuration file. + * @param Item Affected variable name. + */ +static void Config_Error_TooLong ( const int Line, const char *Item ) { Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" too long!", NGIRCd_ConfFile, Line, Item ); } -LOCAL void +/** + * Output "unknown variable" warning. + * + * @param Line Line number in configuration file. + * @param Item Affected variable name. + * @param Section Section name. + */ +static void +Config_Error_Section(const int Line, const char *Item, const char *Section) +{ + Config_Error(LOG_ERR, "%s, line %d (section \"%s\"): Unknown variable \"%s\"!", + NGIRCd_ConfFile, Line, Section, Item); +} + +/** + * Output "not a number" warning. + * + * @param Line Line number in configuration file. + * @param Item Affected variable name. + */ +static void Config_Error_NaN( const int Line, const char *Item ) { - Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" is not a number!", NGIRCd_ConfFile, Line, Item ); + Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" is not a number!", + NGIRCd_ConfFile, Line, Item ); } +/** + * Output configuration error to console and/or logfile. + * + * On runtime, the normal log functions of the daemon are used. But when + * testing the configuration ("--configtest"), all messages go directly + * to the console. + * + * @param Level Severity level of the message. + * @param Format Format string; see printf() function. + */ #ifdef PROTOTYPES -LOCAL void Config_Error( const int Level, const char *Format, ... ) +static void Config_Error( const int Level, const char *Format, ... ) #else -LOCAL void Config_Error( Level, Format, va_alist ) +static void Config_Error( Level, Format, va_alist ) const int Level; const char *Format; va_dcl #endif { - /* Error! Write to console and/or logfile. */ - char msg[MAX_LOG_MSG_LEN]; va_list ap; @@ -1043,20 +1938,49 @@ va_dcl #endif vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap ); va_end( ap ); - - /* During "normal operations" the log functions of the daemon should - * be used, but during testing of the configuration file, all messages - * should go directly to the console: */ - if( Use_Log ) Log( Level, "%s", msg ); - else puts( msg ); -} /* Config_Error */ + if (!Use_Log) { + if (Level <= LOG_WARNING) + printf(" - %s\n", msg); + else + puts(msg); + } else + Log(Level, "%s", msg); +} + +#ifdef DEBUG -LOCAL void -Init_Server_Struct( CONF_SERVER *Server ) +/** + * Dump internal state of the "configuration module". + */ +GLOBAL void +Conf_DebugDump(void) { - /* Initialize server configuration structur to default values */ + int i; + + Log(LOG_DEBUG, "Configured servers:"); + for (i = 0; i < MAX_SERVERS; i++) { + if (! Conf_Server[i].name[0]) + continue; + Log(LOG_DEBUG, + " - %s: %s:%d, last=%ld, group=%d, flags=%d, conn=%d", + Conf_Server[i].name, Conf_Server[i].host, + Conf_Server[i].port, Conf_Server[i].lasttry, + Conf_Server[i].group, Conf_Server[i].flags, + Conf_Server[i].conn_id); + } +} + +#endif +/** + * Initialize server configuration structur to default values. + * + * @param Server Pointer to server structure to initialize. + */ +static void +Init_Server_Struct( CONF_SERVER *Server ) +{ assert( Server != NULL ); memset( Server, 0, sizeof (CONF_SERVER) ); @@ -1066,8 +1990,9 @@ Init_Server_Struct( CONF_SERVER *Server ) if( NGIRCd_Passive ) Server->flags = CONF_SFLAG_DISABLED; + Proc_InitStruct(&Server->res_stat); Server->conn_id = NONE; -} /* Init_Server_Struct */ - + memset(&Server->bind_addr, 0, sizeof(&Server->bind_addr)); +} /* -eof- */