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conf.c
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conf.c
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/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2014 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.
*/
#include "portab.h"
/**
* @file
* Configuration management (reading, parsing & validation)
*/
#include <assert.h>
#include <errno.h>
#ifdef PROTOTYPES
# include <stdarg.h>
#else
# include <varargs.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <time.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
#include <sys/types.h>
#include <dirent.h>
#include "ngircd.h"
#include "conn.h"
#include "channel.h"
#include "log.h"
#include "match.h"
#include "conf.h"
static bool Use_Log = true, Using_MotdFile = true;
static CONF_SERVER New_Server;
static int New_Server_Idx;
static char Conf_MotdFile[FNAME_LEN];
static char Conf_HelpFile[FNAME_LEN];
static char Conf_IncludeDir[FNAME_LEN];
static void Set_Defaults PARAMS(( bool InitServers ));
static bool Read_Config PARAMS(( bool TestOnly, bool IsStarting ));
static void Read_Config_File PARAMS(( const char *File, FILE *fd ));
static bool Validate_Config PARAMS(( bool TestOnly, bool Rehash ));
static void Handle_GLOBAL PARAMS((const char *File, int Line,
char *Var, char *Arg ));
static void Handle_LIMITS PARAMS((const char *File, int Line,
char *Var, char *Arg ));
static void Handle_OPTIONS PARAMS((const char *File, int Line,
char *Var, char *Arg ));
static void Handle_OPERATOR PARAMS((const char *File, int Line,
char *Var, char *Arg ));
static void Handle_SERVER PARAMS((const char *File, int Line,
char *Var, char *Arg ));
static void Handle_CHANNEL PARAMS((const char *File, int Line,
char *Var, char *Arg ));
static void Config_Error PARAMS((const int Level, const char *Format, ...));
static void Config_Error_NaN PARAMS((const char *File, const int LINE,
const char *Value));
static void Config_Error_Section PARAMS((const char *File, const int Line,
const char *Item, const char *Section));
static void Config_Error_TooLong PARAMS((const char *File, const int LINE,
const char *Value));
static void Init_Server_Struct PARAMS(( CONF_SERVER *Server ));
#ifdef WANT_IPV6
#define DEFAULT_LISTEN_ADDRSTR "::,0.0.0.0"
#else
#define DEFAULT_LISTEN_ADDRSTR "0.0.0.0"
#endif
#ifdef HAVE_LIBSSL
#define DEFAULT_CIPHERS "HIGH:!aNULL:@STRENGTH:!SSLv3"
#endif
#ifdef HAVE_LIBGNUTLS
#define DEFAULT_CIPHERS "SECURE128:-VERS-SSL3.0"
#endif
#ifdef SSL_SUPPORT
static void Handle_SSL PARAMS((const char *File, int Line, char *Var, char *Ark));
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);
array_free(&Conf_SSLOptions.ListenPorts);
free(Conf_SSLOptions.CipherList);
Conf_SSLOptions.CipherList = NULL;
}
/**
* Check if the current configuration uses/requires SSL.
*
* @returns true if SSL is used and should be initialized.
*/
GLOBAL bool
Conf_SSLInUse(void)
{
int i;
/* SSL listen ports configured? */
if (array_bytes(&Conf_SSLOptions.ListenPorts))
return true;
for (i = 0; i < MAX_SERVERS; i++) {
if (Conf_Server[i].port > 0
&& Conf_Server[i].SSLConnect)
return true;
}
return false;
}
/**
* 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;
if (!Filename)
return;
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, const char *File, int Line, char *Arg)
{
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",
File, Line, port, strerror(errno));
} else {
Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Illegal port number %ld!",
File, Line, port );
}
ptr = strtok( NULL, "," );
}
}
/**
* Initialize configuration module.
*/
GLOBAL void
Conf_Init( void )
{
Read_Config(false, 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 )
{
if (!Read_Config(false, 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 count, i;
count = array_length(&Conf_Opers, sizeof(*op));
op = array_start(&Conf_Opers);
for (i = 0; i < count; i++, op++) {
if (!op->name[0])
continue;
puts("[OPERATOR]");
printf(" Name = %s\n", op->name);
printf(" Password = %s\n", op->pwd);
printf(" Mask = %s\n\n", op->mask ? op->mask : "");
}
}
/**
* 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 success, 1 on failure(s); therefore the result code can
* directly be used by exit() when running "ngircd --configtest".
*/
GLOBAL int
Conf_Test( void )
{
struct passwd *pwd;
struct group *grp;
unsigned int i;
bool config_valid;
size_t predef_channel_count;
struct Conf_Channel *predef_chan;
Use_Log = false;
if (!Read_Config(true, 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(" HelpFile = %s\n", Conf_HelpFile);
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) : "");
}
printf(" Network = %s\n", Conf_Network);
if (!Conf_PAM)
printf(" Password = %s\n", Conf_ServerPwd);
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(" IdleTimeout = %d\n", Conf_IdleTimeout);
printf(" MaxConnections = %d\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(" MaxPenaltyTime = %ld\n", Conf_MaxPenaltyTime);
printf(" MaxListSize = %d\n", Conf_MaxListSize);
printf(" PingTimeout = %d\n", Conf_PingTimeout);
printf(" PongTimeout = %d\n", Conf_PongTimeout);
puts("");
puts("[OPTIONS]");
printf(" AllowedChannelTypes = %s\n", Conf_AllowedChannelTypes);
printf(" AllowRemoteOper = %s\n", yesno_to_str(Conf_AllowRemoteOper));
printf(" ChrootDir = %s\n", Conf_Chroot);
printf(" CloakHost = %s\n", Conf_CloakHost);
printf(" CloakHostModeX = %s\n", Conf_CloakHostModeX);
printf(" CloakHostSalt = %s\n", Conf_CloakHostSalt);
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(" DefaultUserModes = %s\n", Conf_DefaultUserModes);
printf(" DNS = %s\n", yesno_to_str(Conf_DNS));
#ifdef IDENT
printf(" Ident = %s\n", yesno_to_str(Conf_Ident));
#endif
printf(" IncludeDir = %s\n", Conf_IncludeDir);
printf(" MorePrivacy = %s\n", yesno_to_str(Conf_MorePrivacy));
printf(" NoticeBeforeRegistration = %s\n", yesno_to_str(Conf_NoticeBeforeRegistration));
printf(" OperCanUseMode = %s\n", yesno_to_str(Conf_OperCanMode));
printf(" OperChanPAutoOp = %s\n", yesno_to_str(Conf_OperChanPAutoOp));
printf(" OperServerMode = %s\n", yesno_to_str(Conf_OperServerMode));
#ifdef PAM
printf(" PAM = %s\n", yesno_to_str(Conf_PAM));
printf(" PAMIsOptional = %s\n", yesno_to_str(Conf_PAMIsOptional));
printf(" PAMServiceName = %s\n", Conf_PAMServiceName);
#endif
#ifndef STRICT_RFC
printf(" RequireAuthPing = %s\n", yesno_to_str(Conf_AuthPing));
#endif
printf(" ScrubCTCP = %s\n", yesno_to_str(Conf_ScrubCTCP));
#ifdef SYSLOG
printf(" SyslogFacility = %s\n",
ngt_SyslogFacilityName(Conf_SyslogFacility));
#endif
printf(" WebircPassword = %s\n", Conf_WebircPwd);
puts("");
#ifdef SSL_SUPPORT
puts("[SSL]");
printf(" CertFile = %s\n", Conf_SSLOptions.CertFile
? Conf_SSLOptions.CertFile : "");
printf(" CipherList = %s\n", Conf_SSLOptions.CipherList ?
Conf_SSLOptions.CipherList : DEFAULT_CIPHERS);
printf(" DHFile = %s\n", Conf_SSLOptions.DHFile
? Conf_SSLOptions.DHFile : "");
printf(" KeyFile = %s\n", Conf_SSLOptions.KeyFile
? Conf_SSLOptions.KeyFile : "");
if (array_bytes(&Conf_SSLOptions.KeyFilePassword))
puts(" KeyFilePassword = <secret>");
else
puts(" KeyFilePassword = ");
array_free_wipe(&Conf_SSLOptions.KeyFilePassword);
printf(" Ports = ");
ports_puts(&Conf_SSLOptions.ListenPorts);
puts("");
#endif
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 = %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 );
printf( " Passive = %s\n\n", Conf_Server[i].flags & CONF_SFLAG_DISABLED ? "yes" : "no");
}
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", 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 (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 )
{
int i;
time_t t;
/* Check all our configured servers */
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 ) {
/* Delete configuration here */
Init_Server_Struct( &Conf_Server[i] );
} else {
/* Set time for next connect attempt */
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 {
/* "Short" connection, enforce "ConnectRetry"
* but randomize it a little bit: 15 seconds. */
Conf_Server[i].lasttry =
#ifdef HAVE_ARC4RANDOM
t + (arc4random() % 15);
#else
t + rand() / (RAND_MAX / 15);
#endif
}
}
}
}
/**
* Set connection information for specified configured server.
*/
GLOBAL bool
Conf_SetServer( int ConfServer, CONN_ID Idx )
{
assert( ConfServer > NONE );
assert( Idx > NONE );
if (Conf_Server[ConfServer].conn_id > NONE &&
Conf_Server[ConfServer].conn_id != Idx) {
Log(LOG_ERR,
"Connection %d: Server configuration of \"%s\" already in use by connection %d!",
Idx, Conf_Server[ConfServer].name,
Conf_Server[ConfServer].conn_id);
Conn_Close(Idx, NULL, "Server configuration already in use", true);
return false;
}
Conf_Server[ConfServer].conn_id = Idx;
return true;
}
/**
* Get index of server in configuration structure.
*/
GLOBAL int
Conf_GetServer( CONN_ID Idx )
{
int i = 0;
assert( Idx > NONE );
for( i = 0; i < MAX_SERVERS; i++ ) {
if( Conf_Server[i].conn_id == Idx ) return i;
}
return NONE;
}
/**
* 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( const char *Name, UINT16 Port )
{
int i;
assert( Name != NULL );
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 (Conf_Server[i].port && Conf_Server[i].host[0]);
}
}
return false;
}
/**
* 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_EnablePassiveServer(const char *Name)
{
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;
Conf_Server[i].lasttry = 0;
return true;
}
}
return false;
}
/**
* 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);
return true;
}
}
return false;
}
/**
* 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(const char *Name, UINT16 Port, const char *Host,
const char *MyPwd, const char *PeerPwd)
{
int i;
assert( Name != NULL );
assert( Host != NULL );
assert( MyPwd != NULL );
assert( PeerPwd != NULL );
/* Search unused item in server configuration structure */
for( i = 0; i < MAX_SERVERS; i++ ) {
/* Is this item used? */
if( ! Conf_Server[i].name[0] ) break;
}
if( i >= MAX_SERVERS ) return false;
Init_Server_Struct( &Conf_Server[i] );
strlcpy( Conf_Server[i].name, Name, sizeof( Conf_Server[i].name ));
strlcpy( Conf_Server[i].host, Host, sizeof( Conf_Server[i].host ));
strlcpy( Conf_Server[i].pwd_out, MyPwd, sizeof( Conf_Server[i].pwd_out ));
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;
}
/**
* Check if the given nickname is reserved for services on a particular server.
*
* @param ConfServer The server index to check.
* @param Nick The nickname to check.
* @returns true if the given nickname belongs to an "IRC service".
*/
GLOBAL bool
Conf_NickIsService(int ConfServer, const char *Nick)
{
assert (ConfServer >= 0);
assert (ConfServer < MAX_SERVERS);
return MatchCaseInsensitiveList(Conf_Server[ConfServer].svs_mask,
Nick, ",");
}
/**
* Check if the given nickname is blocked for "normal client" use.
*
* @param ConfServer The server index or NONE to check all configured servers.
* @param Nick The nickname to check.
* @returns true if the given nickname belongs to an "IRC service".
*/
GLOBAL bool
Conf_NickIsBlocked(const char *Nick)
{
int i;
for(i = 0; i < MAX_SERVERS; i++) {
if (!Conf_Server[i].name[0])
continue;
if (Conf_NickIsService(i, Nick))
return true;
}
return false;
}
/**
* Initialize configuration settings with their default values.
*/
static void
Set_Defaults(bool InitServers)
{
int i;
char random[RANDOM_SALT_LEN + 1];
/* 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);
strcpy(Conf_Network, "");
free(Conf_ListenAddress);
Conf_ListenAddress = NULL;
array_free(&Conf_ListenPorts);
array_free(&Conf_Motd);
array_free(&Conf_Helptext);
strlcpy(Conf_MotdFile, SYSCONFDIR, sizeof(Conf_MotdFile));
strlcat(Conf_MotdFile, MOTD_FILE, sizeof(Conf_MotdFile));
strlcpy(Conf_HelpFile, DOCDIR, sizeof(Conf_HelpFile));
strlcat(Conf_HelpFile, HELP_FILE, sizeof(Conf_HelpFile));
strcpy(Conf_ServerPwd, "");
strlcpy(Conf_PidFile, PID_FILE, sizeof(Conf_PidFile));
Conf_UID = Conf_GID = 0;
/* Limits */
Conf_ConnectRetry = 60;
Conf_IdleTimeout = 0;
Conf_MaxConnections = 0;
Conf_MaxConnectionsIP = 5;
Conf_MaxJoins = 10;
Conf_MaxNickLength = CLIENT_NICK_LEN_DEFAULT;
Conf_MaxPenaltyTime = -1;
Conf_MaxListSize = 100;
Conf_PingTimeout = 120;
Conf_PongTimeout = 20;
/* Options */
strlcpy(Conf_AllowedChannelTypes, CHANTYPES,
sizeof(Conf_AllowedChannelTypes));
Conf_AllowRemoteOper = false;
#ifndef STRICT_RFC
Conf_AuthPing = false;
#endif
strlcpy(Conf_Chroot, CHROOT_DIR, sizeof(Conf_Chroot));
strcpy(Conf_CloakHost, "");
strcpy(Conf_CloakHostModeX, "");
strlcpy(Conf_CloakHostSalt, ngt_RandomStr(random, RANDOM_SALT_LEN),
sizeof(Conf_CloakHostSalt));
Conf_CloakUserToNick = false;
Conf_ConnectIPv4 = true;
#ifdef WANT_IPV6
Conf_ConnectIPv6 = true;
#else
Conf_ConnectIPv6 = false;
#endif
strcpy(Conf_DefaultUserModes, "");
Conf_DNS = true;
#ifdef IDENTAUTH
Conf_Ident = true;
#else
Conf_Ident = false;
#endif
strcpy(Conf_IncludeDir, "");
Conf_MorePrivacy = false;
Conf_NoticeBeforeRegistration = false;
Conf_OperCanMode = false;
Conf_OperChanPAutoOp = true;
Conf_OperServerMode = false;
#ifdef PAM
Conf_PAM = true;
#else
Conf_PAM = false;
#endif
Conf_PAMIsOptional = false;
strcpy(Conf_PAMServiceName, "ngircd");
Conf_ScrubCTCP = false;
#ifdef SYSLOG
#ifdef LOG_LOCAL5
Conf_SyslogFacility = LOG_LOCAL5;
#else
Conf_SyslogFacility = 0;
#endif
#endif
/* Initialize server configuration structures */
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;
}
/**
* Read contents of a text file into an array.
*
* This function is used to read the MOTD and help text file, for example.
*
* @param filename Name of the file to read.
* @return true, when the file has been read in.
*/
static bool
Read_TextFile(const char *Filename, const char *Name, array *Destination)
{
char line[127];
FILE *fp;
int line_no = 1;
if (*Filename == '\0')
return false;
fp = fopen(Filename, "r");
if (!fp) {
Config_Error(LOG_ERR, "Can't read %s file \"%s\": %s",
Name, Filename, strerror(errno));
return false;
}
array_free(Destination);
while (fgets(line, (int)sizeof line, fp)) {
ngt_TrimLastChr(line, '\n');
/* add text including \0 */
if (!array_catb(Destination, line, strlen(line) + 1)) {
Log(LOG_ERR, "Cannot read/add \"%s\", line %d: %s",
Filename, line_no, strerror(errno));
break;
}
line_no++;
}
fclose(fp);
return true;
}
/**
* 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 TestOnly, bool IsStarting)
{
const UINT16 defaultport = 6667;
char *ptr, file[FNAME_LEN];
struct dirent *entry;
int i, n;
FILE *fd;
DIR *dh;
/* Open configuration file */
fd = fopen( NGIRCd_ConfFile, "r" );
if( ! fd ) {
/* No configuration file found! */
Config_Error( LOG_ALERT, "Can't read configuration \"%s\": %s",
NGIRCd_ConfFile, strerror( errno ));
if (!IsStarting)
return false;
Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
exit( 1 );
}
opers_free();
Set_Defaults(IsStarting);
if (TestOnly)
Config_Error(LOG_INFO,
"Reading configuration from \"%s\" ...",
NGIRCd_ConfFile );
/* Clean up server configuration structure: mark all already
* configured servers as "once" so that they are deleted
* after the next disconnect and delete all unused servers.
* 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++ ) {
if( Conf_Server[i].conn_id == NONE ) Init_Server_Struct( &Conf_Server[i] );
else {
/* This structure is in use ... */
if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) {
/* Check for duplicates */
for( n = 0; n < MAX_SERVERS; n++ ) {
if( n == i ) continue;
if( Conf_Server[i].conn_id == Conf_Server[n].conn_id ) {
Init_Server_Struct( &Conf_Server[n] );
#ifdef DEBUG
Log(LOG_DEBUG,"Deleted unused duplicate server %d (kept %d).",
n, i );
#endif
}
}
} else {
/* Mark server as "once" */
Conf_Server[i].flags |= CONF_SFLAG_ONCE;
Log( LOG_DEBUG, "Marked server %d as \"once\"", i );
}
}
}
/* Initialize variables */
Init_Server_Struct( &New_Server );
New_Server_Idx = NONE;
#ifdef SSL_SUPPORT
ConfSSL_Init();
#endif
Read_Config_File(NGIRCd_ConfFile, fd);
fclose(fd);
if (Conf_IncludeDir[0]) {
dh = opendir(Conf_IncludeDir);
if (!dh)
Config_Error(LOG_ALERT,
"Can't open include directory \"%s\": %s",
Conf_IncludeDir, strerror(errno));
} else {
strlcpy(Conf_IncludeDir, SYSCONFDIR, sizeof(Conf_IncludeDir));
strlcat(Conf_IncludeDir, CONFIG_DIR, sizeof(Conf_IncludeDir));
dh = opendir(Conf_IncludeDir);
}
/* Include further configuration files, if IncludeDir is available */
if (dh) {
while ((entry = readdir(dh)) != NULL) {
ptr = strrchr(entry->d_name, '.');
if (!ptr || strcasecmp(ptr, ".conf") != 0)
continue;
snprintf(file, sizeof(file), "%s/%s",
Conf_IncludeDir, entry->d_name);
if (TestOnly)
Config_Error(LOG_INFO,
"Reading configuration from \"%s\" ...",
file);
fd = fopen(file, "r");
if (fd) {
Read_Config_File(file, fd);
fclose(fd);
} else
Config_Error(LOG_ALERT,
"Can't read configuration \"%s\": %s",
file, strerror(errno));
}
closedir(dh);