/*
  * $Id$
  *
  *  cfg grammar

  *

  * Copyright (C) 2001-2003 FhG Fokus

  *
  * This file is part of ser, a free SIP server.
  *
  * ser 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
  *
  * For a license to use the ser software under conditions
  * other than those described here, or to purchase support for this
  * software, please contact iptel.org by e-mail at the following addresses:
  *    info@iptel.org
  *
  * ser is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *

  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

  */
  /*

  * History:
  * ---------

  * 2003-01-29  src_port added (jiri)
  * 2003-01-23  mhomed added (jiri)
  * 2003-03-19  replaced all mallocs/frees with pkg_malloc/pkg_free (andrei)

  * 2003-03-19  Added support for route type in find_export (janakj)

  * 2003-03-20  Regex support in modparam (janakj)

  * 2003-04-01  added dst_port, proto , af (andrei)

  * 2003-04-05  s/reply_route/failure_route, onreply_route introduced (jiri)

  * 2003-04-12  added force_rport, chroot and wdir (andrei)

  * 2003-04-15  added tcp_children, disable_tcp (andrei)

  * 2003-04-22  strip_tail added (jiri)

  * 2003-07-03  tls* (disable, certificate, private_key, ca_list, verify,

  *              require_certificate added (andrei)

  * 2003-07-06  more tls config. vars added: tls_method, tls_port_no (andrei)

  * 2003-10-02  added {,set_}advertised_{address,port} (andrei)

  * 2003-10-10  added <,>,<=,>=, != operators support
  *             added msg:len (andrei)
  * 2003-10-11  if(){} doesn't require a ';' after it anymore (andrei)

  * 2003-10-13  added FIFO_DIR & proto:host:port listen/alias support (andrei)

  * 2003-10-24  converted to the new socket_info lists (andrei)

  * 2003-10-28  added tcp_accept_aliases (andrei)

  * 2003-11-20  added {tcp_connect, tcp_send, tls_*}_timeout (andrei)

  * 2004-03-30  added DISABLE_CORE and OPEN_FD_LIMIT (andrei)

  * 2004-04-29  added SOCK_MODE, SOCK_USER & SOCK_GROUP (andrei)

  * 2004-05-03  applied multicast support patch (MCAST_LOOPBACK) from janakj

  *             added MCAST_TTL (andrei)

  * 2004-07-05  src_ip & dst_ip will detect ip addresses between quotes
  *              (andrei)

  * 2004-10-19  added FROM_URI, TO_URI (andrei)

  * 2004-11-30  added force_send_socket (andrei)

  * 2005-07-08  added TCP_CON_LIFETIME, TCP_POLL_METHOD, TCP_MAX_CONNECTIONS
  *              (andrei)

  * 2005-07-11 added DNS_RETR_TIME, DNS_RETR_NO, DNS_SERVERS_NO, DNS_USE_SEARCH,
  *             DNS_TRY_IPV6 (andrei)

  * 2005-07-12  default onreply route added (andrei)

  * 2005-11-16  fixed if (cond) cmd; (andrei)

  * 2005-12-11  added onsend_route support, fcmd (filtered cmd),
  *             snd_{ip,port,proto,af}, to_{ip,proto} (andrei)

  * 2005-12-19  select framework (mma)

  * 2006-01-06  AVP index support (mma)

  * 2005-01-07  optional semicolon in statement, PARAM_STR&PARAM_STRING

  * 2006-02-02  named flags support (andrei)

  * 2006-02-06  named routes support (andrei)

  * 2006-05-30  avp flags (tma)

  * 2006-09-11  added dns cache (use, flags, ttls, mem ,gc) & dst blacklist
  *              options (andrei)

  * 2006-10-13  added STUN_ALLOW_STUN, STUN_ALLOW_FP, STUN_REFRESH_INTERVAL
  *              (vlada)

  * 2007-02-09  separated command needed for tls-in-core and for tls in general
  *              (andrei)

  * 2007-06-07  added SHM_FORCE_ALLOC, MLOCK_PAGES, REAL_TIME, RT_PRIO,

  *              RT_POLICY, RT_TIMER1_PRIO, RT_TIMER1_POLICY, RT_TIMER2_PRIO,
  *              RT_TIMER2_POLICY (andrei)

  * 2007-06-16  added DDNS_SRV_LB, DNS_TRY_NAPTR (andrei)

  * 2007-09-10  introduced phone2tel option which allows NOT to consider
  *             user=phone URIs as TEL URIs (jiri)

  * 2007-10-10  added DNS_SEARCH_FMATCH (mma)

  * 2007-11-28  added TCP_OPT_{FD_CACHE, DEFER_ACCEPT, DELAYED_ACK, SYNCNT,
  *              LINGER2, KEEPALIVE, KEEPIDLE, KEEPINTVL, KEEPCNT} (andrei)

  * 2008-01-24  added cfg_var definition (Miklos)

  * 2008-11-18  support for variable parameter module functions (andrei)

  * 2007-12-03  support for generalised lvalues and rvalues:
  *               lval=rval_expr, where lval=avp|pvar  (andrei)

  * 2007-12-06  expression are now evaluated in terms of rvalues;
  *             NUMBER is now always positive; cleanup (andrei)

  * 2009-01-26  case/switch() support (andrei)

  * 2009-03-10  added SET_USERPHONE action (Miklos)

  * 2009-05-04  switched if to rval_expr (andrei)

  * 2010-01-10  init shm on first mod_param or route block;
  *             added SHM_MEM_SZ (andrei)

  * 2010-02-17  added blacklist imask (DST_BLST_*_IMASK) support (andrei)

 */

 %expect 6

 %{
 

 #include <stdlib.h>

 #include <stdio.h>

 #include <stdarg.h>

 #include <sys/types.h>

 #include <sys/socket.h>
 #include <netinet/in.h>

 #include <netinet/ip.h>

 #include <arpa/inet.h>

 #include <string.h>

 #include <errno.h>

 #include "route_struct.h"

 #include "globals.h"

 #ifdef SHM_MEM
 #include "shm_init.h"
 #endif /* SHM_MEM */

 #include "route.h"

 #include "switch.h"

 #include "dprint.h"

 #include "sr_module.h"

 #include "modparam.h"

 #include "ip_addr.h"

 #include "resolve.h"

 #include "socket_info.h"

 #include "name_alias.h"

 #include "ut.h"

 #include "dset.h"

 #include "select.h"

 #include "flags.h"

 #include "tcp_init.h"

 #include "tcp_options.h"

 #include "sctp_core.h"

 #include "pvar.h"
 #include "lvalue.h"
 #include "rvalue.h"
 #include "sr_compat.h"

 #include "msg_translator.h"

 #include "async_task.h"

 #include "ppcfg.h"

 #include "pvapi.h"

 #include "config.h"

 #include "cfg_core.h"

 #include "cfg/cfg.h"

 #ifdef CORE_TLS

 #include "tls/tls_config.h"
 #endif

 #include "timer_ticks.h"

 #ifdef DEBUG_DMALLOC
 #include <dmalloc.h>
 #endif
 

 /* hack to avoid alloca usage in the generated C file (needed for compiler
  with no built in alloca, like icc*/
 #undef _ALLOCA_H

 #define onsend_check(s) \
 	do{\
 		if (rt!=ONSEND_ROUTE) yyerror( s " allowed only in onsend_routes");\
 	}while(0)

 	#define IF_AUTO_BIND_IPV6(x) x

 
 #ifdef USE_DNS_CACHE
 	#define IF_DNS_CACHE(x) x
 #else
 	#define IF_DNS_CACHE(x) warn("dns cache support not compiled in")
 #endif
 
 #ifdef USE_DNS_FAILOVER
 	#define IF_DNS_FAILOVER(x) x
 #else
 	#define IF_DNS_FAILOVER(x) warn("dns failover support not compiled in")
 #endif
 

 #ifdef USE_NAPTR
 	#define IF_NAPTR(x) x
 #else
 	#define IF_NAPTR(x) warn("dns naptr support not compiled in")
 #endif
 

 #ifdef USE_DST_BLACKLIST
 	#define IF_DST_BLACKLIST(x) x
 #else
 	#define IF_DST_BLACKLIST(x) warn("dst blacklist support not compiled in")
 #endif
 

 #ifdef USE_SCTP
 	#define IF_SCTP(x) x
 #else
 	#define IF_SCTP(x) warn("sctp support not compiled in")
 #endif
 

 #ifdef USE_RAW_SOCKS
 	#define IF_RAW_SOCKS(x) x
 #else
 	#define IF_RAW_SOCKS(x) warn("raw socket support not compiled in")
 #endif
 

 extern int yylex();

 /* safer then using yytext which can be array or pointer */
 extern char* yy_number_str;
 

 static void yyerror(char* s, ...);

 static void yyerror_at(struct cfg_pos* pos, char* s, ...);

 static char* tmp;
 static int i_tmp;

 static unsigned u_tmp;

 static struct socket_id* lst_tmp;

 static struct name_lst*  nl_tmp;

 static int rt;  /* Type of route block for find_export */
 static str* str_tmp;

 static str s_tmp;
 static struct ip_addr* ip_tmp;

 static struct avp_spec* s_attr;

 static select_t sel;
 static select_t* sel_ptr;

 static pv_spec_t* pv_spec;

 static struct action *mod_func_action;

 static struct lvalue* lval_tmp;

 static struct rvalue* rval_tmp;

 static void warn(char* s, ...);
 static void warn_at(struct cfg_pos* pos, char* s, ...);

 static void get_cpos(struct cfg_pos* pos);

 static struct rval_expr* mk_rve_rval(enum rval_type, void* v);
 static struct rval_expr* mk_rve1(enum rval_expr_op op, struct rval_expr* rve1);
 static struct rval_expr* mk_rve2(enum rval_expr_op op, struct rval_expr* rve1,
 									struct rval_expr* rve2);

 static int rval_expr_int_check(struct rval_expr *rve);
 static int warn_ct_rve(struct rval_expr *rve, char* name);

 static struct socket_id* mk_listen_id(char*, int, int);

 static struct name_lst* mk_name_lst(char* name, int flags);
 static struct socket_id* mk_listen_id2(struct name_lst*, int, int);
 static void free_name_lst(struct name_lst* lst);
 static void free_socket_id_lst(struct socket_id* i);

 static struct case_stms* mk_case_stm(struct rval_expr* ct, int is_re, 
 									struct action* a, int* err);
 static int case_check_type(struct case_stms* stms);
 static int case_check_default(struct case_stms* stms);

 static int mod_f_params_pre_fixup(struct action* a);
 static void free_mod_func_action(struct action* a);

 extern int line;
 extern int column;
 extern int startcolumn;
 extern int startline;
 extern char *finame;

 extern char *routename;
 extern char *default_routename;

 
 #define set_cfg_pos(x) \
 	do{\
 		if(x) {\
 		(x)->cline = line;\
 		(x)->cfile = (finame!=0)?finame:((cfg_file!=0)?cfg_file:"default");\

 		(x)->rname = (routename!=0)?routename:((default_routename!=0)?default_routename:"DEFAULT");\

 		}\
 	}while(0)
 
 

 %}
 
 %union {

 	long intval;
 	unsigned long uval;

 	char* strval;

 	struct expr* expr;
 	struct action* action;

 	struct case_stms* case_stms;

 	struct net* ipnet;
 	struct ip_addr* ipaddr;

 	struct socket_id* sockid;

 	struct name_lst* name_l;

 	struct avp_spec* attr;

 	struct _pv_spec* pvar;
 	struct lvalue* lval;
 	struct rvalue* rval;
 	struct rval_expr* rv_expr;

 	select_t* select;

 }
 
 /* terminals */
 
 

 /* keywords */

 %token FORWARD

 %token FORWARD_TCP

 %token FORWARD_TLS

 %token FORWARD_SCTP

 %token FORWARD_UDP

 %token EXIT

 %token DROP

 %token RETURN

 %token BREAK

 %token LOG_TOK

 %token ERROR
 %token ROUTE

 %token ROUTE_REQUEST

 %token ROUTE_FAILURE
 %token ROUTE_ONREPLY

 %token ROUTE_REPLY

 %token ROUTE_BRANCH

 %token ROUTE_SEND

 %token ROUTE_EVENT

 %token EXEC

 %token SET_HOST
 %token SET_HOSTPORT

 %token SET_HOSTPORTTRANS

 %token PREFIX
 %token STRIP

 %token STRIP_TAIL

 %token SET_USERPHONE

 %token APPEND_BRANCH

 %token REMOVE_BRANCH
 %token CLEAR_BRANCHES

 %token SET_USER
 %token SET_USERPASS
 %token SET_PORT
 %token SET_URI

 %token REVERT_URI

 %token FORCE_RPORT

 %token ADD_LOCAL_RPORT

 %token FORCE_TCP_ALIAS

 %token UDP_MTU
 %token UDP_MTU_TRY_PROTO

 %token UDP4_RAW
 %token UDP4_RAW_MTU

 %token UDP4_RAW_TTL

 %token IF
 %token ELSE

 %token SET_ADV_ADDRESS
 %token SET_ADV_PORT

 %token FORCE_SEND_SOCKET

 %token SET_FWD_NO_CONNECT
 %token SET_RPL_NO_CONNECT
 %token SET_FWD_CLOSE
 %token SET_RPL_CLOSE

 %token SWITCH
 %token CASE
 %token DEFAULT

 %token WHILE

 %token CFG_SELECT
 %token CFG_RESET

 %token URIHOST
 %token URIPORT

 %token MAX_LEN

 %token SETFLAG
 %token RESETFLAG
 %token ISFLAGSET

 %token SETAVPFLAG
 %token RESETAVPFLAG
 %token ISAVPFLAGSET

 %token METHOD
 %token URI

 %token FROM_URI
 %token TO_URI

 %token SRCIP

 %token SRCPORT

 %token DSTIP

 %token DSTPORT

 %token TOIP
 %token TOPORT
 %token SNDIP
 %token SNDPORT
 %token SNDPROTO
 %token SNDAF

 %token PROTO
 %token AF

 %token MYSELF

 %token MSGLEN

 %token UDP
 %token TCP
 %token TLS

 %token SCTP

 %token WS

 %token WSS

 
 /* config vars. */

 %token DEBUG_V

 %token FORK

 %token FORK_DELAY

 %token MODINIT_DELAY

 %token LOGSTDERROR

 %token LOGFACILITY

 %token LOGNAME

 %token LOGCOLOR

 %token LOGPREFIX

 %token LISTEN

 %token ADVERTISE

 %token ALIAS

 %token SR_AUTO_ALIASES

 %token DNS
 %token REV_DNS

 %token DNS_TRY_IPV6

 %token DNS_TRY_NAPTR
 %token DNS_SRV_LB
 %token DNS_UDP_PREF
 %token DNS_TCP_PREF
 %token DNS_TLS_PREF

 %token DNS_SCTP_PREF

 %token DNS_RETR_TIME
 %token DNS_RETR_NO
 %token DNS_SERVERS_NO
 %token DNS_USE_SEARCH

 %token DNS_SEARCH_FMATCH

 %token DNS_NAPTR_IGNORE_RFC

 %token DNS_CACHE_INIT

 %token DNS_USE_CACHE
 %token DNS_USE_FAILOVER
 %token DNS_CACHE_FLAGS
 %token DNS_CACHE_NEG_TTL
 %token DNS_CACHE_MIN_TTL
 %token DNS_CACHE_MAX_TTL
 %token DNS_CACHE_MEM
 %token DNS_CACHE_GC_INT

 %token DNS_CACHE_DEL_NONEXP

 %token DNS_CACHE_REC_PREF

 
 /* ipv6 auto bind */
 %token AUTO_BIND_IPV6
 

 /*blacklist*/

 %token DST_BLST_INIT

 %token USE_DST_BLST
 %token DST_BLST_MEM
 %token DST_BLST_TTL
 %token DST_BLST_GC_INT

 %token DST_BLST_UDP_IMASK
 %token DST_BLST_TCP_IMASK
 %token DST_BLST_TLS_IMASK
 %token DST_BLST_SCTP_IMASK

 %token PORT

 %token STAT

 %token CHILDREN

 %token SOCKET_WORKERS

 %token ASYNC_WORKERS

 %token CHECK_VIA

 %token PHONE2TEL

 %token MEMLOG

 %token MEMDBG

 %token MEMSUM

 %token MEMSAFETY

 %token MEMJOIN

 %token CORELOG

 %token SIP_WARNING
 %token SERVER_SIGNATURE

 %token SERVER_HEADER
 %token USER_AGENT_HEADER

 %token REPLY_TO_VIA

 %token LOADMODULE

 %token LOADPATH

 %token MODPARAM

 %token MAXBUFFER

 %token SQL_BUFFER_SIZE

 %token USER
 %token GROUP

 %token CHROOT
 %token WDIR

 %token RUNDIR

 %token MHOMED

 %token DISABLE_TCP

 %token TCP_ACCEPT_ALIASES

 %token TCP_CHILDREN

 %token TCP_CONNECT_TIMEOUT
 %token TCP_SEND_TIMEOUT

 %token TCP_CON_LIFETIME
 %token TCP_POLL_METHOD
 %token TCP_MAX_CONNECTIONS

 %token TLS_MAX_CONNECTIONS

 %token TCP_NO_CONNECT

 %token TCP_SOURCE_IPV4
 %token TCP_SOURCE_IPV6

 %token TCP_OPT_FD_CACHE

 %token TCP_OPT_BUF_WRITE
 %token TCP_OPT_CONN_WQ_MAX
 %token TCP_OPT_WQ_MAX

 %token TCP_OPT_RD_BUF
 %token TCP_OPT_WQ_BLK

 %token TCP_OPT_DEFER_ACCEPT
 %token TCP_OPT_DELAYED_ACK
 %token TCP_OPT_SYNCNT
 %token TCP_OPT_LINGER2
 %token TCP_OPT_KEEPALIVE
 %token TCP_OPT_KEEPIDLE
 %token TCP_OPT_KEEPINTVL
 %token TCP_OPT_KEEPCNT

 %token TCP_OPT_CRLF_PING

 %token TCP_OPT_ACCEPT_NO_CL

 %token TCP_CLONE_RCVBUF

 %token DISABLE_TLS

 %token ENABLE_TLS

 %token TLSLOG

 %token TLS_PORT_NO

 %token TLS_METHOD
 %token TLS_HANDSHAKE_TIMEOUT
 %token TLS_SEND_TIMEOUT
 %token SSLv23
 %token SSLv2
 %token SSLv3
 %token TLSv1
 %token TLS_VERIFY
 %token TLS_REQUIRE_CERTIFICATE
 %token TLS_CERTIFICATE
 %token TLS_PRIVATE_KEY
 %token TLS_CA_LIST

 %token DISABLE_SCTP

 %token ENABLE_SCTP

 %token SCTP_CHILDREN

 %token ADVERTISED_ADDRESS
 %token ADVERTISED_PORT

 %token DISABLE_CORE
 %token OPEN_FD_LIMIT

 %token SHM_MEM_SZ

 %token SHM_FORCE_ALLOC
 %token MLOCK_PAGES
 %token REAL_TIME
 %token RT_PRIO
 %token RT_POLICY
 %token RT_TIMER1_PRIO
 %token RT_TIMER1_POLICY
 %token RT_TIMER2_PRIO
 %token RT_TIMER2_POLICY

 %token MCAST_LOOPBACK

 %token MCAST_TTL

 %token TOS

 %token PMTU_DISCOVERY

 %token KILL_TIMEOUT

 %token MAX_WLOOPS

 %token PVBUFSIZE
 %token PVBUFSLOTS

 %token HTTP_REPLY_PARSE

 %token VERSION_TABLE_CFG

 %token CFG_DESCRIPTION

 %token SERVER_ID

 %token MAX_RECURSIVE_LEVEL

 %token MAX_BRANCHES_PARAM

 %token LATENCY_LOG
 %token LATENCY_LIMIT_DB
 %token LATENCY_LIMIT_ACTION

 %token MSG_TIME

 %token ONSEND_RT_REPLY

 %token FLAGS_DECL

 %token AVPFLAGS_DECL

 %token ATTR_MARK

 %token SELECT_MARK

 %token ATTR_FROM
 %token ATTR_TO

 %token ATTR_FROMURI
 %token ATTR_TOURI

 %token ATTR_FROMUSER
 %token ATTR_TOUSER
 %token ATTR_FROMDOMAIN
 %token ATTR_TODOMAIN

 %token ATTR_GLOBAL

 %token ADDEQ

 /*pre-processor*/
 %token SUBST

 %token SUBSTDEF

 %token SUBSTDEFS

 /* operators, C like precedence */
 %right EQUAL

 %left LOG_OR
 %left LOG_AND
 %left BIN_OR

 %left BIN_AND

 %left BIN_XOR
 %left BIN_LSHIFT
 %left BIN_RSHIFT

 %left EQUAL_T DIFF MATCH INTEQ INTDIFF STREQ STRDIFF

 %left GT LT GTE LTE

 %left PLUS MINUS

 %left STAR SLASH MODULO

 %right NOT UNARY BIN_NOT

 %right DEFINED

 %right INTCAST STRCAST

 %left DOT

 /* no precedence, they use () */
 %token STRLEN
 %token STREMPTY
 

 /* values */

 %token <intval> NUMBER
 %token <strval> ID

 %token <strval> NUM_ID

 %token <strval> STRING

 %token <strval> IPV6ADDR

 %token <strval> PVAR
 /* not clear yet if this is an avp or pvar */
 %token <strval> AVP_OR_PVAR

 %token <strval> EVENT_RT_NAME

 
 /* other */
 %token COMMA
 %token SEMICOLON
 %token RPAREN
 %token LPAREN
 %token LBRACE
 %token RBRACE
 %token LBRACK
 %token RBRACK
 %token CR

 %token COLON

 
 
 /*non-terminals */

 /*%type <expr> exp */
 %type <expr> exp_elem

 %type <intval> intno eint_op eint_op_onsend
 %type <intval> eip_op eip_op_onsend
 %type <action> action actions cmd fcmd if_cmd stm /*exp_stm*/ assign_action

 %type <action> switch_cmd while_cmd ret_cmd

 %type <case_stms> single_case case_stms

 %type <ipaddr> ipv4 ipv6 ipv6addr ip

 %type <ipnet> ipnet

 %type <strval> host host_or_if host_if_id

 %type <strval> listen_id

 %type <name_l> listen_id_lst
 %type <name_l> listen_id2

 %type <sockid>  id_lst
 %type <sockid>  phostport

 %type <sockid>  listen_phostport

 %type <intval> proto eqproto port

 %type <intval> equalop strop cmpop rve_cmpop rve_equalop

 %type <intval> uri_type

 %type <attr> attr_id

 %type <attr> attr_id_num_idx
 %type <attr> attr_id_no_idx
 %type <attr> attr_id_ass

 /*%type <attr> attr_id_val*/

 %type <attr> attr_id_any

 %type <attr> attr_id_any_str

 %type <pvar> pvar

 %type <lval> lval

 %type <rv_expr> rval rval_expr ct_rval

 %type <lval> avp_pvar

 /* %type <intval> class_id */

 %type <intval> assign_op

 %type <select> select_id

 %type <strval>	flag_name;

 %type <strval>	route_name;

 %type <intval> avpflag_oper

 %type <intval> rve_un_op

 %type <strval> cfg_var_id

 /* %type <intval> rve_op */

 /*%type <route_el> rules;
   %type <route_el> rule;
 */

 
 %%
 
 

 cfg:
 	statements

 	;

 statements:
 	statements statement {}
 	| statement {}
 	| statements error { yyerror(""); YYABORT;}

 	;

 statement:
 	assign_stm

 	| preprocess_stm

 	| flags_decl

 	| avpflags_decl

 	| module_stm
 	| {rt=REQUEST_ROUTE;} route_stm
 	| {rt=FAILURE_ROUTE;} failure_route_stm

 	| onreply_route_stm

 	| {rt=BRANCH_ROUTE;} branch_route_stm
 	| {rt=ONSEND_ROUTE;}   send_route_stm

 	| {rt=EVENT_ROUTE;}   event_route_stm

 	| SEMICOLON	/* null statement */
 	| CR	/* null statement*/

 	;

 listen_id:
 	ip {

 		if ($1){
 			tmp=ip_addr2a($1);
 			if (tmp==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: bad ip "
 						"address.\n");
 				$$=0;

 			} else {

 				$$=pkg_malloc(strlen(tmp)+1);
 				if ($$==0) {
 					LOG(L_CRIT, "ERROR: cfg. parser: out of "
 							"memory.\n");
 				} else {
 					strncpy($$, tmp, strlen(tmp)+1);
 				}

 			}
 		}
 	}
 	| STRING {
 		$$=pkg_malloc(strlen($1)+1);
 		if ($$==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: out of "
 						"memory.\n");
 		} else {
 				strncpy($$, $1, strlen($1)+1);
 		}
 	}

 	| host_or_if {

 		if ($1){
 			$$=pkg_malloc(strlen($1)+1);
 			if ($$==0) {
 					LOG(L_CRIT, "ERROR: cfg. parser: out of "
 							"memory.\n");
 			} else {
 					strncpy($$, $1, strlen($1)+1);
 			}

 		}
 	}

 	;

 
 
 listen_id_lst:
 	listen_id	{ $$=mk_name_lst($1, SI_IS_MHOMED); }
 	| listen_id COMMA listen_id_lst	{ $$=mk_name_lst($1, SI_IS_MHOMED); 
 										if ($$) $$->next=$3;
 									}
 	;
 
 listen_id2:
 	LPAREN listen_id_lst RPAREN { $$=$2; }
 	| listen_id	{ $$=mk_name_lst($1, 0); }
 	;
 

 proto:
 	UDP	{ $$=PROTO_UDP; }
 	| TCP	{ $$=PROTO_TCP; }
 	| TLS	{ $$=PROTO_TLS; }

 	| SCTP	{ $$=PROTO_SCTP; }

 	| STAR	{ $$=0; }
 	;

 eqproto:
 	UDP	{ $$=PROTO_UDP; }
 	| TCP	{ $$=PROTO_TCP; }
 	| TLS	{ $$=PROTO_TLS; }
 	| SCTP	{ $$=PROTO_SCTP; }
 	| WS	{ $$=PROTO_WS; }
 	| WSS	{ $$=PROTO_WSS; }
 	| STAR	{ $$=0; }
 	;

 port:
 	NUMBER	{ $$=$1; }
 	| STAR	{ $$=0; }

 ;

 phostport:
 	listen_id		{ $$=mk_listen_id($1, 0, 0); }
 	| listen_id COLON port	{ $$=mk_listen_id($1, 0, $3); }
 	| proto COLON listen_id	{ $$=mk_listen_id($3, $1, 0); }
 	| proto COLON listen_id COLON port	{ $$=mk_listen_id($3, $1, $5);}
 	| listen_id COLON error { $$=0; yyerror(" port number expected"); }

 	;

 
 listen_phostport:
 	listen_id2		{ $$=mk_listen_id2($1, 0, 0); }
 	| listen_id2 COLON port	{ $$=mk_listen_id2($1, 0, $3); }
 	| proto COLON listen_id2	{ $$=mk_listen_id2($3, $1, 0); }
 	| proto COLON listen_id2 COLON port	{ $$=mk_listen_id2($3, $1, $5);}
 	| listen_id2 COLON error { $$=0; yyerror(" port number expected"); }
 	;
 

 id_lst:

 	listen_phostport		{  $$=$1 ; }

 	| listen_phostport id_lst	{ $$=$1;  if ($$) $$->next=$2; }

 	;

 intno: NUMBER

 	|  MINUS NUMBER %prec UNARY { $$=-$2; }

 	;
 

 flags_decl:		FLAGS_DECL	flag_list

 			|	FLAGS_DECL error { yyerror("flag list expected\n"); }

 ;
 flag_list:		flag_spec
 			|	flag_spec COMMA flag_list
 ;
 
 flag_spec:		flag_name	{ if (register_flag($1,-1)<0)
 								yyerror("register flag failed");
 						}
 			|	flag_name COLON NUMBER {
 						if (register_flag($1, $3)<0)
 								yyerror("register flag failed");
 										}
 ;
 
 flag_name:		STRING	{ $$=$1; }
 			|	ID		{ $$=$1; }
 ;
 

 avpflags_decl:
 	AVPFLAGS_DECL avpflag_list
 	| AVPFLAGS_DECL error { yyerror("avpflag list expected\n"); }
 	;
 avpflag_list:
 	avpflag_spec
 	| avpflag_spec COMMA avpflag_list
 	;
 avpflag_spec:
 	flag_name {
 		if (register_avpflag($1)==0)
 			yyerror("cannot declare avpflag");
 	}
 	;

 assign_stm:

 	DEBUG_V EQUAL intno { default_core_cfg.debug=$3; }

 	| DEBUG_V EQUAL error  { yyerror("number  expected"); }
 	| FORK  EQUAL NUMBER { dont_fork= ! $3; }
 	| FORK  EQUAL error  { yyerror("boolean value expected"); }

 	| FORK_DELAY  EQUAL NUMBER { set_fork_delay($3); }
 	| FORK_DELAY  EQUAL error  { yyerror("number expected"); }

 	| MODINIT_DELAY  EQUAL NUMBER { set_modinit_delay($3); }
 	| MODINIT_DELAY  EQUAL error  { yyerror("number expected"); }

 	| LOGSTDERROR EQUAL NUMBER { if (!config_check)  /* if set from cmd line, don't overwrite from yyparse()*/ 
 					if(log_stderr == 0) log_stderr=$3; 
 				   }

 	| LOGSTDERROR EQUAL error { yyerror("boolean value expected"); }
 	| LOGFACILITY EQUAL ID {
 		if ( (i_tmp=str2facility($3))==-1)
 			yyerror("bad facility (see syslog(3) man page)");
 		if (!config_check)

 			default_core_cfg.log_facility=i_tmp;

 	}
 	| LOGFACILITY EQUAL error { yyerror("ID expected"); }

 	| LOGNAME EQUAL STRING { log_name=$3; }
 	| LOGNAME EQUAL error { yyerror("string value expected"); }

 	| LOGCOLOR EQUAL NUMBER { log_color=$3; }
 	| LOGCOLOR EQUAL error { yyerror("boolean value expected"); }

 	| LOGPREFIX EQUAL STRING { log_prefix_fmt=$3; }
 	| LOGPREFIX EQUAL error { yyerror("string value expected"); }

 	| DNS EQUAL NUMBER   { received_dns|= ($3)?DO_DNS:0; }
 	| DNS EQUAL error { yyerror("boolean value expected"); }
 	| REV_DNS EQUAL NUMBER { received_dns|= ($3)?DO_REV_DNS:0; }
 	| REV_DNS EQUAL error { yyerror("boolean value expected"); }

 	| DNS_TRY_IPV6 EQUAL NUMBER   { default_core_cfg.dns_try_ipv6=$3; }

 	| DNS_TRY_IPV6 error { yyerror("boolean value expected"); }

 	| DNS_TRY_NAPTR EQUAL NUMBER   { IF_NAPTR(default_core_cfg.dns_try_naptr=$3); }

 	| DNS_TRY_NAPTR error { yyerror("boolean value expected"); }

 	| DNS_SRV_LB EQUAL NUMBER   { IF_DNS_FAILOVER(default_core_cfg.dns_srv_lb=$3); }

 	| DNS_SRV_LB error { yyerror("boolean value expected"); }

 	| DNS_UDP_PREF EQUAL intno { IF_NAPTR(default_core_cfg.dns_udp_pref=$3);}

 	| DNS_UDP_PREF error { yyerror("number expected"); }

 	| DNS_TCP_PREF EQUAL intno { IF_NAPTR(default_core_cfg.dns_tcp_pref=$3);}

 	| DNS_TCP_PREF error { yyerror("number expected"); }

 	| DNS_TLS_PREF EQUAL intno { IF_NAPTR(default_core_cfg.dns_tls_pref=$3);}

 	| DNS_TLS_PREF error { yyerror("number expected"); }

 	| DNS_SCTP_PREF EQUAL intno { 

 								IF_NAPTR(default_core_cfg.dns_sctp_pref=$3); }
 	| DNS_SCTP_PREF error { yyerror("number expected"); }

 	| DNS_RETR_TIME EQUAL NUMBER   { default_core_cfg.dns_retr_time=$3; }

 	| DNS_RETR_TIME error { yyerror("number expected"); }

 	| DNS_RETR_NO EQUAL NUMBER   { default_core_cfg.dns_retr_no=$3; }

 	| DNS_RETR_NO error { yyerror("number expected"); }

 	| DNS_SERVERS_NO EQUAL NUMBER   { default_core_cfg.dns_servers_no=$3; }

 	| DNS_SERVERS_NO error { yyerror("number expected"); }

 	| DNS_USE_SEARCH EQUAL NUMBER   { default_core_cfg.dns_search_list=$3; }

 	| DNS_USE_SEARCH error { yyerror("boolean value expected"); }

 	| DNS_SEARCH_FMATCH EQUAL NUMBER   { default_core_cfg.dns_search_fmatch=$3; }

 	| DNS_SEARCH_FMATCH error { yyerror("boolean value expected"); }

 	| DNS_NAPTR_IGNORE_RFC EQUAL NUMBER   { default_core_cfg.dns_naptr_ignore_rfc=$3; }
 	| DNS_NAPTR_IGNORE_RFC error { yyerror("boolean value expected"); }

 	| DNS_CACHE_INIT EQUAL NUMBER   { IF_DNS_CACHE(dns_cache_init=$3); }
 	| DNS_CACHE_INIT error { yyerror("boolean value expected"); }
 	| DNS_USE_CACHE EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.use_dns_cache=$3); }

 	| DNS_USE_CACHE error { yyerror("boolean value expected"); }

 	| DNS_USE_FAILOVER EQUAL NUMBER   { IF_DNS_FAILOVER(default_core_cfg.use_dns_failover=$3);}

 	| DNS_USE_FAILOVER error { yyerror("boolean value expected"); }

 	| DNS_CACHE_FLAGS EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_cache_flags=$3); }

 	| DNS_CACHE_FLAGS error { yyerror("boolean value expected"); }

 	| DNS_CACHE_NEG_TTL EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_neg_cache_ttl=$3); }

 	| DNS_CACHE_NEG_TTL error { yyerror("boolean value expected"); }

 	| DNS_CACHE_MAX_TTL EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_cache_max_ttl=$3); }

 	| DNS_CACHE_MAX_TTL error { yyerror("boolean value expected"); }

 	| DNS_CACHE_MIN_TTL EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_cache_min_ttl=$3); }

 	| DNS_CACHE_MIN_TTL error { yyerror("boolean value expected"); }

 	| DNS_CACHE_MEM EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_cache_max_mem=$3); }

 	| DNS_CACHE_MEM error { yyerror("boolean value expected"); }
 	| DNS_CACHE_GC_INT EQUAL NUMBER   { IF_DNS_CACHE(dns_timer_interval=$3); }
 	| DNS_CACHE_GC_INT error { yyerror("boolean value expected"); }

 	| DNS_CACHE_DEL_NONEXP EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_cache_del_nonexp=$3); }

 	| DNS_CACHE_DEL_NONEXP error { yyerror("boolean value expected"); }

 	| DNS_CACHE_REC_PREF EQUAL NUMBER   { IF_DNS_CACHE(default_core_cfg.dns_cache_rec_pref=$3); }
 	| DNS_CACHE_REC_PREF error { yyerror("boolean value expected"); }

 	| AUTO_BIND_IPV6 EQUAL NUMBER {IF_AUTO_BIND_IPV6(auto_bind_ipv6 = $3);}

 	| AUTO_BIND_IPV6 error { yyerror("boolean value expected"); }

 	| DST_BLST_INIT EQUAL NUMBER   { IF_DST_BLACKLIST(dst_blacklist_init=$3); }
 	| DST_BLST_INIT error { yyerror("boolean value expected"); }

 	| USE_DST_BLST EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.use_dst_blacklist=$3);
 	}

 	| USE_DST_BLST error { yyerror("boolean value expected"); }

 	| DST_BLST_MEM EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.blst_max_mem=$3); 
 	}

 	| DST_BLST_MEM error { yyerror("boolean value expected"); }

 	| DST_BLST_TTL EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.blst_timeout=$3);
 	}

 	| DST_BLST_TTL error { yyerror("boolean value expected"); }
 	| DST_BLST_GC_INT EQUAL NUMBER { IF_DST_BLACKLIST(blst_timer_interval=$3);}
 	| DST_BLST_GC_INT error { yyerror("boolean value expected"); }

 	| DST_BLST_UDP_IMASK EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.blst_udp_imask=$3);
 	}
 	| DST_BLST_UDP_IMASK error { yyerror("number(flags) expected"); }
 	| DST_BLST_TCP_IMASK EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.blst_tcp_imask=$3);
 	}
 	| DST_BLST_TCP_IMASK error { yyerror("number(flags) expected"); }
 	| DST_BLST_TLS_IMASK EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.blst_tls_imask=$3);
 	}
 	| DST_BLST_TLS_IMASK error { yyerror("number(flags) expected"); }
 	| DST_BLST_SCTP_IMASK EQUAL NUMBER {
 		IF_DST_BLACKLIST(default_core_cfg.blst_sctp_imask=$3);
 	}
 	| DST_BLST_SCTP_IMASK error { yyerror("number(flags) expected"); }

 	| PORT EQUAL NUMBER   { port_no=$3; }
 	| STAT EQUAL STRING {
 		#ifdef STATS
 				stat_file=$3;
 		#endif
 	}
 	| MAXBUFFER EQUAL NUMBER { maxbuffer=$3; }
 	| MAXBUFFER EQUAL error { yyerror("number expected"); }

     | SQL_BUFFER_SIZE EQUAL NUMBER { sql_buffer_size=$3; }
 	| SQL_BUFFER_SIZE EQUAL error { yyerror("number expected"); }

 	| PORT EQUAL error    { yyerror("number expected"); }
 	| CHILDREN EQUAL NUMBER { children_no=$3; }
 	| CHILDREN EQUAL error { yyerror("number expected"); }

 	| SOCKET_WORKERS EQUAL NUMBER { socket_workers=$3; }
 	| SOCKET_WORKERS EQUAL error { yyerror("number expected"); }

 	| ASYNC_WORKERS EQUAL NUMBER { async_task_set_workers($3); }
 	| ASYNC_WORKERS EQUAL error { yyerror("number expected"); }

 	| CHECK_VIA EQUAL NUMBER { check_via=$3; }
 	| CHECK_VIA EQUAL error { yyerror("boolean value expected"); }

 	| PHONE2TEL EQUAL NUMBER { phone2tel=$3; }
 	| PHONE2TEL EQUAL error { yyerror("boolean value expected"); }

 	| MEMLOG EQUAL intno { default_core_cfg.memlog=$3; }

 	| MEMLOG EQUAL error { yyerror("int value expected"); }

 	| MEMDBG EQUAL intno { default_core_cfg.memdbg=$3; }

 	| MEMDBG EQUAL error { yyerror("int value expected"); }

 	| MEMSUM EQUAL intno { default_core_cfg.mem_summary=$3; }
 	| MEMSUM EQUAL error { yyerror("int value expected"); }

 	| MEMSAFETY EQUAL intno { default_core_cfg.mem_safety=$3; }
 	| MEMSAFETY EQUAL error { yyerror("int value expected"); }

 	| MEMJOIN EQUAL intno { default_core_cfg.mem_join=$3; }
 	| MEMJOIN EQUAL error { yyerror("int value expected"); }

 	| CORELOG EQUAL intno { default_core_cfg.corelog=$3; }
 	| CORELOG EQUAL error { yyerror("int value expected"); }

 	| SIP_WARNING EQUAL NUMBER { sip_warning=$3; }
 	| SIP_WARNING EQUAL error { yyerror("boolean value expected"); }

 	| VERSION_TABLE_CFG EQUAL STRING { version_table.s=$3;
 			version_table.len=strlen(version_table.s);
 	}
 	| VERSION_TABLE_CFG EQUAL error { yyerror("string value expected"); }

 	| USER EQUAL STRING     {
 		if (shm_initialized())
 			yyerror("user must be before any modparam or the"
 					" route blocks");
 		else if (user==0)
 			user=$3; 
 	}
 	| USER EQUAL ID         {
 		if (shm_initialized())
 			yyerror("user must be before any modparam or the"
 					" route blocks");
 		else if (user==0)
 			user=$3;
 	}

 	| USER EQUAL error      { yyerror("string value expected"); }
 	| GROUP EQUAL STRING     { group=$3; }
 	| GROUP EQUAL ID         { group=$3; }
 	| GROUP EQUAL error      { yyerror("string value expected"); }
 	| CHROOT EQUAL STRING     { chroot_dir=$3; }
 	| CHROOT EQUAL ID         { chroot_dir=$3; }
 	| CHROOT EQUAL error      { yyerror("string value expected"); }
 	| WDIR EQUAL STRING     { working_dir=$3; }
 	| WDIR EQUAL ID         { working_dir=$3; }
 	| WDIR EQUAL error      { yyerror("string value expected"); }

 	| RUNDIR EQUAL STRING     { runtime_dir=$3; }
 	| RUNDIR EQUAL ID         { runtime_dir=$3; }
 	| RUNDIR EQUAL error      { yyerror("string value expected"); }

 	| MHOMED EQUAL NUMBER { mhomed=$3; }
 	| MHOMED EQUAL error { yyerror("boolean value expected"); }
 	| DISABLE_TCP EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_disable=$3;
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| DISABLE_TCP EQUAL error { yyerror("boolean value expected"); }
 	| TCP_ACCEPT_ALIASES EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.accept_aliases=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_ACCEPT_ALIASES EQUAL error { yyerror("boolean value expected"); }
 	| TCP_CHILDREN EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_cfg_children_no=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_CHILDREN EQUAL error { yyerror("number expected"); }

 	| TCP_CONNECT_TIMEOUT EQUAL intno {

 		#ifdef USE_TCP

 			tcp_default_cfg.connect_timeout_s=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_CONNECT_TIMEOUT EQUAL error { yyerror("number expected"); }

 	| TCP_SEND_TIMEOUT EQUAL intno {

 		#ifdef USE_TCP

 			tcp_default_cfg.send_timeout=S_TO_TICKS($3);

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_SEND_TIMEOUT EQUAL error { yyerror("number expected"); }

 	| TCP_CON_LIFETIME EQUAL intno {

 		#ifdef USE_TCP

 			if ($3<0)
 				tcp_default_cfg.con_lifetime=-1;
 			else
 				tcp_default_cfg.con_lifetime=S_TO_TICKS($3);

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_CON_LIFETIME EQUAL error { yyerror("number expected"); }
 	| TCP_POLL_METHOD EQUAL ID {
 		#ifdef USE_TCP
 			tcp_poll_method=get_poll_type($3);
 			if (tcp_poll_method==POLL_NONE) {
 				LOG(L_CRIT, "bad poll method name:"
 						" %s\n, try one of %s.\n",
 						$3, poll_support);
 				yyerror("bad tcp_poll_method "
 						"value");
 			}
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_POLL_METHOD EQUAL STRING {
 		#ifdef USE_TCP
 			tcp_poll_method=get_poll_type($3);
 			if (tcp_poll_method==POLL_NONE) {
 				LOG(L_CRIT, "bad poll method name:"
 						" %s\n, try one of %s.\n",
 						$3, poll_support);
 				yyerror("bad tcp_poll_method "
 						"value");
 			}
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_POLL_METHOD EQUAL error { yyerror("poll method name expected"); }
 	| TCP_MAX_CONNECTIONS EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_max_connections=$3;
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_MAX_CONNECTIONS EQUAL error { yyerror("number expected"); }

 	| TLS_MAX_CONNECTIONS EQUAL NUMBER {
 		#ifdef USE_TLS
 			tls_max_connections=$3;
 		#else
 			warn("tls support not compiled in");
 		#endif
 	}
 	| TLS_MAX_CONNECTIONS EQUAL error { yyerror("number expected"); }

 	| TCP_NO_CONNECT EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_default_cfg.no_connect=$3;
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_NO_CONNECT EQUAL error { yyerror("boolean value expected"); }

 	| TCP_SOURCE_IPV4 EQUAL ipv4 {
 		#ifdef USE_TCP

 			if (tcp_set_src_addr($3)<0)
 				warn("tcp_source_ipv4 failed");

 		#else
 			warn("tcp support not compiled in");
 		#endif
 		pkg_free($3);
 	}
 	| TCP_SOURCE_IPV4 EQUAL error { yyerror("IPv4 address expected"); }
 	| TCP_SOURCE_IPV6 EQUAL ipv6 {
 		#ifdef USE_TCP

 				if (tcp_set_src_addr($3)<0)
 					warn("tcp_source_ipv6 failed");

 		#else
 			warn("tcp support not compiled in");
 		#endif
 		pkg_free($3);
 	}
 	| TCP_SOURCE_IPV6 EQUAL error { yyerror("IPv6 address expected"); }

 	| TCP_OPT_FD_CACHE EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.fd_cache=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_FD_CACHE EQUAL error { yyerror("boolean value expected"); }

 	| TCP_OPT_BUF_WRITE EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.async=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_BUF_WRITE EQUAL error { yyerror("boolean value expected"); }
 	| TCP_OPT_CONN_WQ_MAX EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.tcpconn_wq_max=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_CONN_WQ_MAX error { yyerror("boolean value expected"); }
 	| TCP_OPT_WQ_MAX EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.tcp_wq_max=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}

 	| TCP_OPT_WQ_MAX error { yyerror("number expected"); }
 	| TCP_OPT_RD_BUF EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_default_cfg.rd_buf_size=$3;
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_RD_BUF error { yyerror("number expected"); }
 	| TCP_OPT_WQ_BLK EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_default_cfg.wq_blk_size=$3;
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_WQ_BLK error { yyerror("number expected"); }

 	| TCP_OPT_DEFER_ACCEPT EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.defer_accept=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_DEFER_ACCEPT EQUAL error { yyerror("boolean value expected"); }
 	| TCP_OPT_DELAYED_ACK EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.delayed_ack=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_DELAYED_ACK EQUAL error { yyerror("boolean value expected"); }
 	| TCP_OPT_SYNCNT EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.syncnt=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_SYNCNT EQUAL error { yyerror("number expected"); }
 	| TCP_OPT_LINGER2 EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.linger2=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_LINGER2 EQUAL error { yyerror("number expected"); }
 	| TCP_OPT_KEEPALIVE EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.keepalive=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_KEEPALIVE EQUAL error { yyerror("boolean value expected");}
 	| TCP_OPT_KEEPIDLE EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.keepidle=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_KEEPIDLE EQUAL error { yyerror("number expected"); }
 	| TCP_OPT_KEEPINTVL EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.keepintvl=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_KEEPINTVL EQUAL error { yyerror("number expected"); }
 	| TCP_OPT_KEEPCNT EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.keepcnt=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_KEEPCNT EQUAL error { yyerror("number expected"); }

 	| TCP_OPT_CRLF_PING EQUAL NUMBER {
 		#ifdef USE_TCP

 			tcp_default_cfg.crlf_ping=$3;

 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_CRLF_PING EQUAL error { yyerror("boolean value expected"); }

 	| TCP_OPT_ACCEPT_NO_CL EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_default_cfg.accept_no_cl=$3;
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_OPT_ACCEPT_NO_CL EQUAL error { yyerror("boolean value expected"); }

 	| TCP_CLONE_RCVBUF EQUAL NUMBER {
 		#ifdef USE_TCP
 			tcp_set_clone_rcvbuf($3);
 		#else
 			warn("tcp support not compiled in");
 		#endif
 	}
 	| TCP_CLONE_RCVBUF EQUAL error { yyerror("number expected"); }

 	| DISABLE_TLS EQUAL NUMBER {
 		#ifdef USE_TLS
 			tls_disable=$3;
 		#else
 			warn("tls support not compiled in");
 		#endif
 	}
 	| DISABLE_TLS EQUAL error { yyerror("boolean value expected"); }

 	| ENABLE_TLS EQUAL NUMBER {

 		#ifdef USE_TLS

 			tls_disable=!($3);

 		#else
 			warn("tls support not compiled in");
 		#endif
 	}

 	| ENABLE_TLS EQUAL error { yyerror("boolean value expected"); }
 	| TLSLOG EQUAL NUMBER {
 		#ifdef CORE_TLS
 			tls_log=$3;
 		#else
 			warn("tls-in-core support not compiled in");
 		#endif
 	}

 	| TLSLOG EQUAL error { yyerror("int value expected"); }
 	| TLS_PORT_NO EQUAL NUMBER {
 		#ifdef USE_TLS
 			tls_port_no=$3;
 		#else
 			warn("tls support not compiled in");
 		#endif
 	}
 	| TLS_PORT_NO EQUAL error { yyerror("number expected"); }
 	| TLS_METHOD EQUAL SSLv23 {

 		#ifdef CORE_TLS

 			tls_method=TLS_USE_SSLv23;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_METHOD EQUAL SSLv2 {

 		#ifdef CORE_TLS

 			tls_method=TLS_USE_SSLv2;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_METHOD EQUAL SSLv3 {

 		#ifdef CORE_TLS

 			tls_method=TLS_USE_SSLv3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_METHOD EQUAL TLSv1 {

 		#ifdef CORE_TLS

 			tls_method=TLS_USE_TLSv1;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_METHOD EQUAL error {

 		#ifdef CORE_TLS

 			yyerror("SSLv23, SSLv2, SSLv3 or TLSv1 expected");
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_VERIFY EQUAL NUMBER {

 		#ifdef CORE_TLS

 			tls_verify_cert=$3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_VERIFY EQUAL error { yyerror("boolean value expected"); }
 	| TLS_REQUIRE_CERTIFICATE EQUAL NUMBER {

 		#ifdef CORE_TLS

 			tls_require_cert=$3;
 		#else

 			warn( "tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_REQUIRE_CERTIFICATE EQUAL error { yyerror("boolean value expected"); }
 	| TLS_CERTIFICATE EQUAL STRING {

 		#ifdef CORE_TLS

 			tls_cert_file=$3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_CERTIFICATE EQUAL error { yyerror("string value expected"); }
 	| TLS_PRIVATE_KEY EQUAL STRING {

 		#ifdef CORE_TLS

 			tls_pkey_file=$3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_PRIVATE_KEY EQUAL error { yyerror("string value expected"); }
 	| TLS_CA_LIST EQUAL STRING {

 		#ifdef CORE_TLS

 			tls_ca_file=$3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_CA_LIST EQUAL error { yyerror("string value expected"); }
 	| TLS_HANDSHAKE_TIMEOUT EQUAL NUMBER {

 		#ifdef CORE_TLS

 			tls_handshake_timeout=$3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_HANDSHAKE_TIMEOUT EQUAL error { yyerror("number expected"); }
 	| TLS_SEND_TIMEOUT EQUAL NUMBER {

 		#ifdef CORE_TLS

 			tls_send_timeout=$3;
 		#else

 			warn("tls-in-core support not compiled in");

 		#endif
 	}
 	| TLS_SEND_TIMEOUT EQUAL error { yyerror("number expected"); }

 	| DISABLE_SCTP EQUAL NUMBER {
 		#ifdef USE_SCTP
 			sctp_disable=$3;
 		#else
 			warn("sctp support not compiled in");
 		#endif
 	}
 	| DISABLE_SCTP EQUAL error { yyerror("boolean value expected"); }

 	| ENABLE_SCTP EQUAL NUMBER {
 		#ifdef USE_SCTP
 			sctp_disable=($3<=1)?!$3:$3;
 		#else
 			warn("sctp support not compiled in");
 		#endif
 	}
 	| ENABLE_SCTP EQUAL error { yyerror("boolean or number expected"); }

 	| SCTP_CHILDREN EQUAL NUMBER {
 		#ifdef USE_SCTP
 			sctp_children_no=$3;
 		#else
 			warn("sctp support not compiled in");
 		#endif
 	}
 	| SCTP_CHILDREN EQUAL error { yyerror("number expected"); }

 	| SERVER_SIGNATURE EQUAL NUMBER { server_signature=$3; }
 	| SERVER_SIGNATURE EQUAL error { yyerror("boolean value expected"); }

 	| SERVER_HEADER EQUAL STRING { server_hdr.s=$3;
 			server_hdr.len=strlen(server_hdr.s);
 	}
 	| SERVER_HEADER EQUAL error { yyerror("string value expected"); }
 	| USER_AGENT_HEADER EQUAL STRING { user_agent_hdr.s=$3;
 			user_agent_hdr.len=strlen(user_agent_hdr.s);
 	}
 	| USER_AGENT_HEADER EQUAL error { yyerror("string value expected"); }

 	| REPLY_TO_VIA EQUAL NUMBER { reply_to_via=$3; }
 	| REPLY_TO_VIA EQUAL error { yyerror("boolean value expected"); }
 	| LISTEN EQUAL id_lst {
 		for(lst_tmp=$3; lst_tmp; lst_tmp=lst_tmp->next) {

 			if (add_listen_iface(	lst_tmp->addr_lst->name,
 									lst_tmp->addr_lst->next,
 									lst_tmp->port, lst_tmp->proto,
 									lst_tmp->flags)!=0) {
 				LOG(L_CRIT,  "ERROR: cfg. parser: failed to add listen"
 								" address\n");

 				break;
 			}
 		}

 		free_socket_id_lst($3);

 	}

 	| LISTEN EQUAL id_lst ADVERTISE listen_id COLON NUMBER {
 		for(lst_tmp=$3; lst_tmp; lst_tmp=lst_tmp->next) {
 			if (add_listen_advertise_iface(	lst_tmp->addr_lst->name,
 									lst_tmp->addr_lst->next,
 									lst_tmp->port, lst_tmp->proto,
 									$5, $7,
 									lst_tmp->flags)!=0) {
 				LOG(L_CRIT,  "ERROR: cfg. parser: failed to add listen"
 								" address\n");
 				break;
 			}
 		}
 		free_socket_id_lst($3);
 	}

 	| LISTEN EQUAL  error { yyerror("ip address, interface name or"
 									" hostname expected"); }

 	| ALIAS EQUAL  id_lst {

 		for(lst_tmp=$3; lst_tmp; lst_tmp=lst_tmp->next){
 			add_alias(	lst_tmp->addr_lst->name,
 						strlen(lst_tmp->addr_lst->name),
 						lst_tmp->port, lst_tmp->proto);
 			for (nl_tmp=lst_tmp->addr_lst->next; nl_tmp; nl_tmp=nl_tmp->next)
 				add_alias(nl_tmp->name, strlen(nl_tmp->name),
 							lst_tmp->port, lst_tmp->proto);
 		}
 		free_socket_id_lst($3);

 	}
 	| ALIAS  EQUAL error  { yyerror(" hostname expected"); }

 	| SR_AUTO_ALIASES EQUAL NUMBER { sr_auto_aliases=$3; }
 	| SR_AUTO_ALIASES EQUAL error  { yyerror("boolean value expected"); }

 	| ADVERTISED_ADDRESS EQUAL listen_id {

 		if ($3){
 			default_global_address.s=$3;
 			default_global_address.len=strlen($3);
 		}

 	}
 	| ADVERTISED_ADDRESS EQUAL error {yyerror("ip address or hostname expected"); }
 	| ADVERTISED_PORT EQUAL NUMBER {
 		tmp=int2str($3, &i_tmp);
 		if ((default_global_port.s=pkg_malloc(i_tmp))==0) {
 			LOG(L_CRIT, "ERROR: cfg. parser: out of memory.\n");
 			default_global_port.len=0;
 		} else {
 			default_global_port.len=i_tmp;
 			memcpy(default_global_port.s, tmp, default_global_port.len);
 		};
 	}
 	|ADVERTISED_PORT EQUAL error {yyerror("ip address or hostname expected"); }
 	| DISABLE_CORE EQUAL NUMBER { disable_core_dump=$3; }
 	| DISABLE_CORE EQUAL error { yyerror("boolean value expected"); }
 	| OPEN_FD_LIMIT EQUAL NUMBER { open_files_limit=$3; }
 	| OPEN_FD_LIMIT EQUAL error { yyerror("number expected"); }

 	| SHM_MEM_SZ EQUAL NUMBER {
 		if (shm_initialized())
 			yyerror("shm/shm_mem_size must be before any modparam or the"
 					" route blocks");
 		else if (shm_mem_size == 0)
 			shm_mem_size=$3 * 1024 * 1024;
 	}
 	| SHM_MEM_SZ EQUAL error { yyerror("number expected"); }

 	| SHM_FORCE_ALLOC EQUAL NUMBER {
 		if (shm_initialized())
 			yyerror("shm_force_alloc must be before any modparam or the"
 					" route blocks");
 		else
 			shm_force_alloc=$3;
 	}

 	| SHM_FORCE_ALLOC EQUAL error { yyerror("boolean value expected"); }
 	| MLOCK_PAGES EQUAL NUMBER { mlock_pages=$3; }
 	| MLOCK_PAGES EQUAL error { yyerror("boolean value expected"); }
 	| REAL_TIME EQUAL NUMBER { real_time=$3; }
 	| REAL_TIME EQUAL error { yyerror("boolean value expected"); }
 	| RT_PRIO EQUAL NUMBER { rt_prio=$3; }
 	| RT_PRIO EQUAL error { yyerror("boolean value expected"); }
 	| RT_POLICY EQUAL NUMBER { rt_policy=$3; }
 	| RT_POLICY EQUAL error { yyerror("boolean value expected"); }
 	| RT_TIMER1_PRIO EQUAL NUMBER { rt_timer1_prio=$3; }
 	| RT_TIMER1_PRIO EQUAL error { yyerror("boolean value expected"); }
 	| RT_TIMER1_POLICY EQUAL NUMBER { rt_timer1_policy=$3; }
 	| RT_TIMER1_POLICY EQUAL error { yyerror("boolean value expected"); }
 	| RT_TIMER2_PRIO EQUAL NUMBER { rt_timer2_prio=$3; }
 	| RT_TIMER2_PRIO EQUAL error { yyerror("boolean value expected"); }
 	| RT_TIMER2_POLICY EQUAL NUMBER { rt_timer2_policy=$3; }
 	| RT_TIMER2_POLICY EQUAL error { yyerror("boolean value expected"); }

 	| MCAST_LOOPBACK EQUAL NUMBER {
 		#ifdef USE_MCAST
 			mcast_loopback=$3;
 		#else
 			warn("no multicast support compiled in");
 		#endif
 	}
 	| MCAST_LOOPBACK EQUAL error { yyerror("boolean value expected"); }
 	| MCAST_TTL EQUAL NUMBER {
 		#ifdef USE_MCAST
 			mcast_ttl=$3;
 		#else
 			warn("no multicast support compiled in");
 		#endif
 	}
 	| MCAST_TTL EQUAL error { yyerror("number expected"); }
 	| TOS EQUAL NUMBER { tos=$3; }

 	| TOS EQUAL ID { if (strcasecmp($3,"IPTOS_LOWDELAY")) {
 			tos=IPTOS_LOWDELAY;
 		} else if (strcasecmp($3,"IPTOS_THROUGHPUT")) {
 			tos=IPTOS_THROUGHPUT;
 		} else if (strcasecmp($3,"IPTOS_RELIABILITY")) {
 			tos=IPTOS_RELIABILITY;
 #if defined(IPTOS_MINCOST)
 		} else if (strcasecmp($3,"IPTOS_MINCOST")) {
 			tos=IPTOS_MINCOST;
 #endif
 #if defined(IPTOS_LOWCOST)
 		} else if (strcasecmp($3,"IPTOS_LOWCOST")) {
 			tos=IPTOS_LOWCOST;
 #endif
 		} else {
 			yyerror("invalid tos value - allowed: "
 				"IPTOS_LOWDELAY,IPTOS_THROUGHPUT,"
 				"IPTOS_RELIABILITY"
 #if defined(IPTOS_LOWCOST)
 				",IPTOS_LOWCOST"
 #endif
 #if !defined(IPTOS_MINCOST)
 				",IPTOS_MINCOST"
 #endif
 				"\n");
 		}
 	}

 	| TOS EQUAL error { yyerror("number expected"); }

 	| PMTU_DISCOVERY EQUAL NUMBER { pmtu_discovery=$3; }
 	| PMTU_DISCOVERY error { yyerror("number expected"); }

 	| KILL_TIMEOUT EQUAL NUMBER { ser_kill_timeout=$3; }
 	| KILL_TIMEOUT EQUAL error { yyerror("number expected"); }

 	| MAX_WLOOPS EQUAL NUMBER { default_core_cfg.max_while_loops=$3; }
 	| MAX_WLOOPS EQUAL error { yyerror("number expected"); }

 	| PVBUFSIZE EQUAL NUMBER { pv_set_buffer_size($3); }
 	| PVBUFSIZE EQUAL error { yyerror("number expected"); }
 	| PVBUFSLOTS EQUAL NUMBER { pv_set_buffer_slots($3); }
 	| PVBUFSLOTS EQUAL error { yyerror("number expected"); }

 	| HTTP_REPLY_PARSE EQUAL NUMBER { http_reply_parse=$3; }
 	| HTTP_REPLY_PARSE EQUAL error { yyerror("boolean value expected"); }

     | SERVER_ID EQUAL NUMBER { server_id=$3; }

     | MAX_RECURSIVE_LEVEL EQUAL NUMBER { set_max_recursive_level($3); }

     | MAX_BRANCHES_PARAM EQUAL NUMBER { sr_dst_max_branches = $3; }

     | LATENCY_LOG EQUAL NUMBER { default_core_cfg.latency_log=$3; }
 	| LATENCY_LOG EQUAL error  { yyerror("number  expected"); }
     | LATENCY_LIMIT_DB EQUAL NUMBER { default_core_cfg.latency_limit_db=$3; }
 	| LATENCY_LIMIT_DB EQUAL error  { yyerror("number  expected"); }
     | LATENCY_LIMIT_ACTION EQUAL NUMBER { default_core_cfg.latency_limit_action=$3; }
 	| LATENCY_LIMIT_ACTION EQUAL error  { yyerror("number  expected"); }

     | MSG_TIME EQUAL NUMBER { sr_msg_time=$3; }
 	| MSG_TIME EQUAL error  { yyerror("number  expected"); }

 	| ONSEND_RT_REPLY EQUAL NUMBER { onsend_route_reply=$3; }
 	| ONSEND_RT_REPLY EQUAL error { yyerror("int value expected"); }

 	| UDP_MTU EQUAL NUMBER { default_core_cfg.udp_mtu=$3; }
 	| UDP_MTU EQUAL error { yyerror("number expected"); }
 	| FORCE_RPORT EQUAL NUMBER 

 		{ default_core_cfg.force_rport=$3; fix_global_req_flags(0, 0); }

 	| FORCE_RPORT EQUAL error { yyerror("boolean value expected"); }
 	| UDP_MTU_TRY_PROTO EQUAL proto

 		{ default_core_cfg.udp_mtu_try_proto=$3; fix_global_req_flags(0, 0); }

 	| UDP_MTU_TRY_PROTO EQUAL error
 		{ yyerror("TCP, TLS, SCTP or UDP expected"); }

 	| UDP4_RAW EQUAL intno { IF_RAW_SOCKS(default_core_cfg.udp4_raw=$3); }
 	| UDP4_RAW EQUAL error { yyerror("number expected"); }
 	| UDP4_RAW_MTU EQUAL NUMBER {
 		IF_RAW_SOCKS(default_core_cfg.udp4_raw_mtu=$3);
 	}
 	| UDP4_RAW_MTU EQUAL error { yyerror("number expected"); }

 	| UDP4_RAW_TTL EQUAL NUMBER {
 		IF_RAW_SOCKS(default_core_cfg.udp4_raw_ttl=$3);
 	}
 	| UDP4_RAW_TTL EQUAL error { yyerror("number expected"); }

 	| cfg_var

 	| error EQUAL { yyerror("unknown config variable"); }

 	;

 	
 cfg_var_id: ID 
 	| DEFAULT { $$="default" ; } /*needed to allow default as cfg var. name*/
 	;
 	

 cfg_var:

 	cfg_var_id DOT cfg_var_id EQUAL NUMBER {

 		if (cfg_declare_int($1, $3, $5, 0, 0, NULL)) {

 			yyerror("variable cannot be declared");
 		}

 	}

 	| cfg_var_id DOT cfg_var_id EQUAL STRING {

 		if (cfg_declare_str($1, $3, $5, NULL)) {
 			yyerror("variable cannot be declared");
 		}

 	}

 	| cfg_var_id DOT cfg_var_id EQUAL NUMBER CFG_DESCRIPTION STRING {

 		if (cfg_declare_int($1, $3, $5, 0, 0, $7)) {

 			yyerror("variable cannot be declared");
 		}

 	}

 	| cfg_var_id DOT cfg_var_id EQUAL STRING CFG_DESCRIPTION STRING {

 		if (cfg_declare_str($1, $3, $5, $7)) {
 			yyerror("variable cannot be declared");
 		}

 	}

 	| cfg_var_id DOT cfg_var_id EQUAL error { 
 		yyerror("number or string expected"); 
 	}

 	| cfg_var_id LBRACK NUMBER RBRACK DOT cfg_var_id EQUAL NUMBER {
 		if (cfg_ginst_var_int($1, $3, $6, $8)) {
 			yyerror("variable cannot be added to the group instance");
 		}
 	}
 	| cfg_var_id LBRACK NUMBER RBRACK DOT cfg_var_id EQUAL STRING {
 		if (cfg_ginst_var_string($1, $3, $6, $8)) {
 			yyerror("variable cannot be added to the group instance");
 		}
 	}

 	;

 module_stm:
 	LOADMODULE STRING {
 		DBG("loading module %s\n", $2);
 			if (load_module($2)!=0) {
 				yyerror("failed to load module");
 			}
 	}
 	| LOADMODULE error	{ yyerror("string expected"); }

 	| LOADPATH STRING {

 		if(mods_dir_cmd==0) {
 			DBG("loading modules under %s\n", $2);
 			printf("loading modules under config path: %s\n", $2);
 			mods_dir = $2;
 		} else {
 			DBG("ignoring mod path given in config: %s\n", $2);
 			printf("loading modules under command line path: %s\n", mods_dir);
 		}

 	}
 	| LOADPATH error	{ yyerror("string expected"); }

 	| LOADPATH EQUAL STRING {

 		if(mods_dir_cmd==0) {
 			DBG("loading modules under %s\n", $3);
 			printf("loading modules under config path: %s\n", $3);
 			mods_dir = $3;
 		} else {
 			DBG("ignoring mod path given in config: %s\n", $3);
 			printf("loading modules under command line path: %s\n", mods_dir);
 		}

 	}
 	| LOADPATH EQUAL error	{ yyerror("string expected"); }

 	| MODPARAM LPAREN STRING COMMA STRING COMMA STRING RPAREN {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		if (set_mod_param_regex($3, $5, PARAM_STRING, $7) != 0) {
 			 yyerror("Can't set module parameter");
 		}
 	}

 	| MODPARAM LPAREN STRING COMMA STRING COMMA intno RPAREN {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		if (set_mod_param_regex($3, $5, PARAM_INT, (void*)$7) != 0) {
 			 yyerror("Can't set module parameter");
 		}
 	}
 	| MODPARAM error { yyerror("Invalid arguments"); }
 	;
 ip:
 	ipv4  { $$=$1; }
 	| ipv6  { $$=$1; }
 	;
 ipv4:
 	NUMBER DOT NUMBER DOT NUMBER DOT NUMBER {
 		$$=pkg_malloc(sizeof(struct ip_addr));
 		if ($$==0) {
 			LOG(L_CRIT, "ERROR: cfg. parser: out of memory.\n");
 		} else {
 			memset($$, 0, sizeof(struct ip_addr));
 			$$->af=AF_INET;
 			$$->len=4;
 			if (($1>255) || ($1<0) ||
 				($3>255) || ($3<0) ||
 				($5>255) || ($5<0) ||
 				($7>255) || ($7<0)) {
 				yyerror("invalid ipv4 address");
 				$$->u.addr32[0]=0;
 				/* $$=0; */
 			} else {
 				$$->u.addr[0]=$1;
 				$$->u.addr[1]=$3;
 				$$->u.addr[2]=$5;
 				$$->u.addr[3]=$7;
 				/*
 				$$=htonl( ($1<<24)|
 				($3<<16)| ($5<<8)|$7 );
 				*/
 			}
 		}
 	}
 	;
 ipv6addr:
 	IPV6ADDR {
 		$$=pkg_malloc(sizeof(struct ip_addr));
 		if ($$==0) {
 			LOG(L_CRIT, "ERROR: cfg. parser: out of memory.\n");
 		} else {
 			memset($$, 0, sizeof(struct ip_addr));
 			$$->af=AF_INET6;
 			$$->len=16;
 			if (inet_pton(AF_INET6, $1, $$->u.addr)<=0) {
 				yyerror("bad ipv6 address");
 			}
 		}
 	}
 	;
 ipv6:
 	ipv6addr { $$=$1; }

 	| LBRACK ipv6addr RBRACK {$$=$2; }
 ;

 
 
 route_name:		NUMBER	{
 					tmp=int2str($1, &i_tmp);
 					if (($$=pkg_malloc(i_tmp+1))==0) {
 						yyerror("out of  memory");
 						YYABORT;
 					} else {
 						memcpy($$, tmp, i_tmp);
 						$$[i_tmp]=0;
 					}

 					routename = tmp;

 						}

 			|	ID		{ routename = $1; $$=$1; }
 			|	STRING	{ routename = $1; $$=$1; }

 ;
 

 route_main:	ROUTE { routename=NULL; }
 		  | ROUTE_REQUEST { routename=NULL; }

 ;
 

 route_stm:

 	route_main LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */
 		push($3, &main_rt.rlist[DEFAULT_RT]);
 	}

 	| ROUTE LBRACK route_name RBRACK LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		i_tmp=route_get(&main_rt, $3);
 		if (i_tmp==-1){
 			yyerror("internal error");
 			YYABORT;
 		}
 		if (main_rt.rlist[i_tmp]){
 			yyerror("duplicate route");

 			YYABORT;
 		}

 		push($6, &main_rt.rlist[i_tmp]);

 	}
 	| ROUTE error { yyerror("invalid  route  statement"); }

 	| ROUTE_REQUEST error { yyerror("invalid  request_route  statement"); }

 	;

 failure_route_stm:

 	ROUTE_FAILURE LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */
 		push($3, &failure_rt.rlist[DEFAULT_RT]);
 	}

 	| ROUTE_FAILURE LBRACK route_name RBRACK LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		i_tmp=route_get(&failure_rt, $3);
 		if (i_tmp==-1){
 			yyerror("internal error");
 			YYABORT;
 		}
 		if (failure_rt.rlist[i_tmp]){
 			yyerror("duplicate route");

 			YYABORT;
 		}

 		push($6, &failure_rt.rlist[i_tmp]);

 	}
 	| ROUTE_FAILURE error { yyerror("invalid failure_route statement"); }

 	;

 route_reply_main:	ROUTE_ONREPLY { routename=NULL; }
 		  | ROUTE_REPLY { routename=NULL; }

 ;
 
 

 onreply_route_stm:

 	route_reply_main LBRACE {rt=CORE_ONREPLY_ROUTE;} actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		push($4, &onreply_rt.rlist[DEFAULT_RT]);

 	}

 	| ROUTE_ONREPLY error { yyerror("invalid onreply_route statement"); }

 	| ROUTE_REPLY error { yyerror("invalid onreply_route statement"); }

 	| ROUTE_ONREPLY LBRACK route_name RBRACK 
 		{rt=(*$3=='0' && $3[1]==0)?CORE_ONREPLY_ROUTE:TM_ONREPLY_ROUTE;}
 		LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		if (*$3=='0' && $3[1]==0){
 			/* onreply_route[0] {} is equivalent with onreply_route {}*/
 			push($7, &onreply_rt.rlist[DEFAULT_RT]);
 		}else{
 			i_tmp=route_get(&onreply_rt, $3);
 			if (i_tmp==-1){
 				yyerror("internal error");
 				YYABORT;
 			}
 			if (onreply_rt.rlist[i_tmp]){
 				yyerror("duplicate route");
 				YYABORT;
 			}
 			push($7, &onreply_rt.rlist[i_tmp]);

 		}
 	}

 	| ROUTE_ONREPLY LBRACK route_name RBRACK error {
 		yyerror("invalid onreply_route statement");
 	}

 	;

 branch_route_stm:

 	ROUTE_BRANCH LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */
 		push($3, &branch_rt.rlist[DEFAULT_RT]);
 	}

 	| ROUTE_BRANCH LBRACK route_name RBRACK LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		i_tmp=route_get(&branch_rt, $3);
 		if (i_tmp==-1){
 			yyerror("internal error");

 			YYABORT;
 		}

 		if (branch_rt.rlist[i_tmp]){
 			yyerror("duplicate route");
 			YYABORT;
 		}
 		push($6, &branch_rt.rlist[i_tmp]);

 	}
 	| ROUTE_BRANCH error { yyerror("invalid branch_route statement"); }

 	;

 send_route_stm: ROUTE_SEND LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */
 		push($3, &onsend_rt.rlist[DEFAULT_RT]);
 	}

 	| ROUTE_SEND LBRACK route_name RBRACK LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		i_tmp=route_get(&onsend_rt, $3);
 		if (i_tmp==-1){
 			yyerror("internal error");
 			YYABORT;
 		}
 		if (onsend_rt.rlist[i_tmp]){
 			yyerror("duplicate route");

 			YYABORT;
 		}

 		push($6, &onsend_rt.rlist[i_tmp]);

 	}
 	| ROUTE_SEND error { yyerror("invalid onsend_route statement"); }

 	;

 event_route_stm: ROUTE_EVENT LBRACK EVENT_RT_NAME RBRACK LBRACE actions RBRACE {

 	#ifdef SHM_MEM
 		if (!shm_initialized() && init_shm()<0) {
 			yyerror("Can't initialize shared memory");
 			YYABORT;
 		}
 	#endif /* SHM_MEM */

 		i_tmp=route_get(&event_rt, $3);
 		if (i_tmp==-1){
 			yyerror("internal error");
 			YYABORT;
 		}
 		if (event_rt.rlist[i_tmp]){
 			yyerror("duplicate route");
 			YYABORT;
 		}
 		push($6, &event_rt.rlist[i_tmp]);
 	}
 
 	| ROUTE_EVENT error { yyerror("invalid event_route statement"); }
 	;

 preprocess_stm:
 	SUBST STRING { if(pp_subst_add($2)<0) YYERROR; }
 	| SUBST error { yyerror("invalid subst preprocess statement"); }

 	| SUBSTDEF STRING { if(pp_substdef_add($2, 0)<0) YYERROR; }

 	| SUBSTDEF error { yyerror("invalid substdef preprocess statement"); }

 	| SUBSTDEFS STRING { if(pp_substdef_add($2, 1)<0) YYERROR; }
 	| SUBSTDEFS error { yyerror("invalid substdefs preprocess statement"); }

 	;

 /*exp:	rval_expr

 		{

 			if ($1==0){
 				yyerror("invalid expression");
 				$$=0;
 			}else if (!rve_check_type((enum rval_type*)&i_tmp, $1, 0, 0 ,0)){

 				yyerror("invalid expression");
 				$$=0;
 			}else if (i_tmp!=RV_INT && i_tmp!=RV_NONE){
 				yyerror("invalid expression type, int expected\n");
 				$$=0;
 			}else
 				$$=mk_elem(NO_OP, RVEXP_O, $1, 0, 0);

 		}
 	;

 */

 /* exp elem operators */

 equalop:

 	EQUAL_T {$$=EQUAL_OP; }
 	| DIFF	{$$=DIFF_OP; }

 	| STREQ	{$$=EQUAL_OP; }  /* for expr. elems equiv. to EQUAL_T*/
 	| STRDIFF {$$=DIFF_OP; } /* for expr. elems. equiv. to DIFF */

 	;
 cmpop:
 	  GT	{$$=GT_OP; }
 	| LT	{$$=LT_OP; }
 	| GTE	{$$=GTE_OP; }
 	| LTE	{$$=LTE_OP; }
 	;
 strop:
 	equalop	{$$=$1; }
 	| MATCH	{$$=MATCH_OP; }
 	;
 
 
 /* rve expr. operators */
 rve_equalop:

 	EQUAL_T {$$=RVE_EQ_OP; }
 	| DIFF	{$$=RVE_DIFF_OP; }

 	| INTEQ	{$$=RVE_IEQ_OP; }
 	| INTDIFF {$$=RVE_IDIFF_OP; }
 	| STREQ	{$$=RVE_STREQ_OP; }
 	| STRDIFF {$$=RVE_STRDIFF_OP; }

 	| MATCH	{$$=RVE_MATCH_OP; }

 	;

 rve_cmpop:

 	  GT	{$$=RVE_GT_OP; }
 	| LT	{$$=RVE_LT_OP; }
 	| GTE	{$$=RVE_GTE_OP; }
 	| LTE	{$$=RVE_LTE_OP; }

 	;

 
 
 /* boolean expression uri operands */

 uri_type:
 	URI		{$$=URI_O;}
 	| FROM_URI	{$$=FROM_URI_O;}
 	| TO_URI	{$$=TO_URI_O;}
 	;

 
 /* boolean expression integer operands, available only in the
   onsend route */
 eint_op_onsend:
 			SNDPORT		{ $$=SNDPORT_O; }
 		|	TOPORT		{ $$=TOPORT_O; }
 		|	SNDAF		{ $$=SNDAF_O; }
 		;
 
 /* boolean expression integer operands */
 eint_op:	SRCPORT		{ $$=SRCPORT_O; }
 		|	DSTPORT		{ $$=DSTPORT_O; }
 		|	AF			{ $$=AF_O; }
 		|	MSGLEN		{ $$=MSGLEN_O; }
 		| eint_op_onsend
 	;
 
 /* boolean expression ip/ipnet operands */
 eip_op_onsend:
 			SNDIP		{ onsend_check("snd_ip"); $$=SNDIP_O; }
 		|	TOIP		{ onsend_check("to_ip");  $$=TOIP_O; }
 		;
 
 eip_op:		SRCIP		{ $$=SRCIP_O; }
 		|	DSTIP		{ $$=DSTIP_O; }
 		| eip_op_onsend
 		;
 
 
 

 exp_elem:

 	METHOD strop rval_expr %prec EQUAL_T

 		{$$= mk_elem($2, METHOD_O, 0, RVE_ST, $3);}

 	| METHOD strop ID %prec EQUAL_T

 		{$$ = mk_elem($2, METHOD_O, 0, STRING_ST,$3); }

 	| METHOD strop error { $$=0; yyerror("string expected"); }

 	| METHOD error	
 		{ $$=0; yyerror("invalid operator,== , !=, or =~ expected"); }

 	| uri_type strop rval_expr %prec EQUAL_T

 		{$$ = mk_elem($2, $1, 0, RVE_ST, $3); }

 	| uri_type strop MYSELF %prec EQUAL_T

 		{$$=mk_elem($2, $1, 0, MYSELF_ST, 0); }

 	| uri_type strop error %prec EQUAL_T

 		{ $$=0; yyerror("string or MYSELF expected"); }
 	| uri_type error
 		{ $$=0; yyerror("invalid operator, == , != or =~ expected"); }

 	| eint_op cmpop rval_expr %prec GT { $$=mk_elem($2, $1, 0, RVE_ST, $3 ); }
 	| eint_op equalop rval_expr %prec EQUAL_T

 		{ $$=mk_elem($2, $1, 0, RVE_ST, $3 ); }
 	| eint_op cmpop error   { $$=0; yyerror("number expected"); }
 	| eint_op equalop error { $$=0; yyerror("number expected"); }
 	| eint_op error { $$=0; yyerror("==, !=, <,>, >= or <=  expected"); }

 	| PROTO equalop eqproto %prec EQUAL_T

 		{ $$=mk_elem($2, PROTO_O, 0, NUMBER_ST, (void*)$3 ); }

 	| PROTO equalop rval_expr %prec EQUAL_T

 		{ $$=mk_elem($2, PROTO_O, 0, RVE_ST, $3 ); }
 	| PROTO equalop error

 		{ $$=0; yyerror("protocol expected (udp, tcp, tls, sctp, ws, or wss)"); }
 	| SNDPROTO equalop eqproto %prec EQUAL_T

 		{ $$=mk_elem($2, SNDPROTO_O, 0, NUMBER_ST, (void*)$3 ); }

 	| SNDPROTO equalop rval_expr %prec EQUAL_T

 		{ $$=mk_elem($2, SNDPROTO_O, 0, RVE_ST, $3 ); }
 	| SNDPROTO equalop error

 		{ $$=0; yyerror("protocol expected (udp, tcp, tls, sctp, ws, or wss)"); }

 	| eip_op strop ipnet %prec EQUAL_T { $$=mk_elem($2, $1, 0, NET_ST, $3); }
 	| eip_op strop rval_expr %prec EQUAL_T {

 			s_tmp.s=0;
 			$$=0;
 			if (rve_is_constant($3)){
 				i_tmp=rve_guess_type($3);
 				if (i_tmp==RV_INT)
 					yyerror("string expected");
 				else if (i_tmp==RV_STR){
 					if (((rval_tmp=rval_expr_eval(0, 0, $3))==0) ||
 								(rval_get_str(0, 0, &s_tmp, rval_tmp, 0)<0)){
 						rval_destroy(rval_tmp);
 						yyerror("bad rvalue expression");
 					}else{
 						rval_destroy(rval_tmp);
 					}
 				}else{
 					yyerror("BUG: unexpected dynamic type");
 				}
 			}else{

 					/* warn("non constant rvalue in ip comparison") */;

 			}
 			if (s_tmp.s){
 				ip_tmp=str2ip(&s_tmp);
 				if (ip_tmp==0)
 					ip_tmp=str2ip6(&s_tmp);
 				pkg_free(s_tmp.s);
 				if (ip_tmp) {
 					$$=mk_elem($2, $1, 0, NET_ST, 

 								mk_new_net_bitlen(ip_tmp, ip_tmp->len*8) );

 				} else {
 					$$=mk_elem($2, $1, 0, RVE_ST, $3);
 				}
 			}else{
 				$$=mk_elem($2, $1, 0, RVE_ST, $3);
 			}

 		}

 	| eip_op strop host %prec EQUAL_T

 		{ $$=mk_elem($2, $1, 0, STRING_ST, $3); }

 	| eip_op strop MYSELF %prec EQUAL_T

 		{ $$=mk_elem($2, $1, 0, MYSELF_ST, 0); }

 	| eip_op strop error %prec EQUAL_T

 		{ $$=0; yyerror( "ip address or hostname expected" ); }
 	| eip_op error
 		{ $$=0; yyerror("invalid operator, ==, != or =~ expected");}
 	

 	| MYSELF equalop uri_type %prec EQUAL_T

 		{ $$=mk_elem($2, $3, 0, MYSELF_ST, 0); }

 	| MYSELF equalop eip_op %prec EQUAL_T

 		{ $$=mk_elem($2, $3, 0, MYSELF_ST, 0); }

 	| MYSELF equalop error %prec EQUAL_T

 		{ $$=0; yyerror(" URI, SRCIP or DSTIP expected"); }

 	| MYSELF error	{ $$=0; yyerror ("invalid operator, == or != expected"); }

 	;
 

 ipnet:

 	ip SLASH ip	{ $$=mk_new_net($1, $3); }

 	| ip SLASH NUMBER {
 		if (($3<0) || ($3>$1->len*8)) {
 			yyerror("invalid bit number in netmask");
 			$$=0;
 		} else {

 			$$=mk_new_net_bitlen($1, $3);

 		/*

 			$$=mk_new_net($1, htonl( ($3)?~( (1<<(32-$3))-1 ):0 ) );

 		*/
 		}
 	}

 	| ip	{ $$=mk_new_net_bitlen($1, $1->len*8); }

 	| ip SLASH error { $$=0; yyerror("netmask (eg:255.0.0.0 or 8) expected"); }
 	;

 host:
 	ID { $$=$1; }

 	| host DOT ID {

 		if ($1){
 			$$=(char*)pkg_malloc(strlen($1)+1+strlen($3)+1);
 			if ($$==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: memory allocation"
 							" failure while parsing host\n");
 			} else {
 				memcpy($$, $1, strlen($1));
 				$$[strlen($1)]='.';
 				memcpy($$+strlen($1)+1, $3, strlen($3));
 				$$[strlen($1)+1+strlen($3)]=0;
 			}
 			pkg_free($1);

 		}

 		if ($3) pkg_free($3);

 	}
 	| host MINUS ID {

 		if ($1){
 			$$=(char*)pkg_malloc(strlen($1)+1+strlen($3)+1);
 			if ($$==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: memory allocation"
 							" failure while parsing host\n");
 			} else {
 				memcpy($$, $1, strlen($1));

 				$$[strlen($1)]='-';

 				memcpy($$+strlen($1)+1, $3, strlen($3));
 				$$[strlen($1)+1+strlen($3)]=0;
 			}
 			pkg_free($1);

 		}

 		if ($3) pkg_free($3);

 	}

 	| host DOT error { $$=0; pkg_free($1); yyerror("invalid hostname"); }

 	| host MINUS error { $$=0; pkg_free($1); yyerror("invalid hostname"); }

 	;

 
 host_if_id: ID
 		| NUM_ID

 		| NUMBER {
 			/* get string version */
 			$$=pkg_malloc(strlen(yy_number_str)+1);
 			if ($$)
 				strcpy($$, yy_number_str);
 		}

 		;
 
 host_or_if:
 	host_if_id { $$=$1; }

 	| host_or_if DOT host_if_id {

 		if ($1){
 			$$=(char*)pkg_malloc(strlen($1)+1+strlen($3)+1);
 			if ($$==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: memory allocation"
 							" failure while parsing host/interface name\n");
 			} else {
 				memcpy($$, $1, strlen($1));

 				$$[strlen($1)]='.';

 				memcpy($$+strlen($1)+1, $3, strlen($3));
 				$$[strlen($1)+1+strlen($3)]=0;
 			}
 			pkg_free($1);
 		}

 		if ($3) pkg_free($3);

 	}

 	| host_or_if MINUS host_if_id {
 		if ($1){
 			$$=(char*)pkg_malloc(strlen($1)+1+strlen($3)+1);
 			if ($$==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: memory allocation"
 							" failure while parsing host/interface name\n");
 			} else {
 				memcpy($$, $1, strlen($1));
 				$$[strlen($1)]='-';
 				memcpy($$+strlen($1)+1, $3, strlen($3));
 				$$[strlen($1)+1+strlen($3)]=0;
 			}
 			pkg_free($1);
 		}

 		if ($3) pkg_free($3);

 	}
 	| host_or_if DOT error { $$=0; pkg_free($1);
 								yyerror("invalid host or interface name"); }
 	| host_or_if MINUS error { $$=0; pkg_free($1);

 								yyerror("invalid host or interface name"); }

 	;

 /* filtered cmd */

 fcmd:
 	cmd {
 		/* check if allowed */

 		if ($1 && rt==ONSEND_ROUTE) {

 			switch($1->type) {
 				case DROP_T:
 				case LOG_T:
 				case SETFLAG_T:
 				case RESETFLAG_T:
 				case ISFLAGSET_T:
 				case IF_T:

 				case MODULE0_T:
 				case MODULE1_T:
 				case MODULE2_T:
 				case MODULE3_T:
 				case MODULE4_T:
 				case MODULE5_T:
 				case MODULE6_T:
 				case MODULEX_T:

 				case SET_FWD_NO_CONNECT_T:
 				case SET_RPL_NO_CONNECT_T:
 				case SET_FWD_CLOSE_T:
 				case SET_RPL_CLOSE_T:

 					$$=$1;

 					break;
 				default:
 					$$=0;
 					yyerror("command not allowed in onsend_route\n");

 			}

 		} else {
 			$$=$1;
 		}
 	}

 	;

 /*

 exp_stm:
 	fcmd	{ $$=$1; }
 	| if_cmd	{ $$=$1; }
 	| assign_action { $$ = $1; }
 	| LBRACE actions RBRACE	{ $$=$2; }

 	;

 */

 stm:
 	action	{ $$=$1; }
 	| LBRACE actions RBRACE	{ $$=$2; }

 	;

 actions:
 	actions action	{$$=append_action($1, $2); }
 	| action	{$$=$1;}
 	| actions error { $$=0; yyerror("bad command"); }

 	;

 action:
 	fcmd SEMICOLON {$$=$1;}
 	| if_cmd {$$=$1;}

 	| switch_cmd {$$=$1;}

 	| while_cmd { $$=$1; }

 	| ret_cmd SEMICOLON { $$=$1; }

 	| assign_action SEMICOLON {$$=$1;}
 	| SEMICOLON /* null action */ {$$=0;}
 	| fcmd error { $$=0; yyerror("bad command: missing ';'?"); }

 	;

 if_cmd:

 	IF rval_expr stm	{

 		if ($2 && rval_expr_int_check($2)>=0){

 			warn_ct_rve($2, "if");

 			$$=mk_action( IF_T, 3, RVE_ST, $2, ACTIONS_ST, $3, NOSUBTYPE, 0);

 			set_cfg_pos($$);

 		}else
 			YYERROR;

 	}
 	| IF rval_expr stm ELSE stm	{ 

 		if ($2 && rval_expr_int_check($2)>=0){

 			warn_ct_rve($2, "if");

 			$$=mk_action( IF_T, 3, RVE_ST, $2, ACTIONS_ST, $3, ACTIONS_ST, $5);

 			set_cfg_pos($$);

 		}else
 			YYERROR;

 	}

 	;

 
 ct_rval: rval_expr {
 			$$=0;

 			if ($1 && !rve_is_constant($1)){

 				yyerror("constant expected");

 				YYERROR;

 			/*

 			} else if ($1 &&
 						!rve_check_type((enum rval_type*)&i_tmp, $1, 0, 0 ,0)){

 				yyerror("invalid expression (bad type)");

 			}else if ($1 && i_tmp!=RV_INT){

 				yyerror("invalid expression type, int expected\n");

 			*/

 			}else
 				$$=$1;
 		}
 ;
 single_case:
 	CASE ct_rval COLON actions {
 		$$=0;

 		if ($2==0) { yyerror ("bad case label"); YYERROR; }

 		else if ((($$=mk_case_stm($2, 0, $4, &i_tmp))==0) && (i_tmp==-10)){
 				YYABORT;
 		}
 	}
 | CASE SLASH ct_rval COLON actions {
 		$$=0;

 		if ($3==0) { yyerror ("bad case label"); YYERROR; }

 		else if ((($$=mk_case_stm($3, 1, $5, &i_tmp))==0) && (i_tmp==-10)){

 				YYABORT;
 		}
 	}
 	| CASE ct_rval COLON {
 		$$=0;

 		if ($2==0) { yyerror ("bad case label"); YYERROR; }

 		else if ((($$=mk_case_stm($2, 0, 0, &i_tmp))==0) && (i_tmp==-10)){
 				YYABORT;
 		}
 	}
 	| CASE SLASH ct_rval COLON {
 		$$=0;

 		if ($3==0) { yyerror ("bad regex case label"); YYERROR; }

 		else if ((($$=mk_case_stm($3, 1, 0, &i_tmp))==0) && (i_tmp==-10)){

 				YYABORT;
 		}
 	}
 	| DEFAULT COLON actions {

 		if ((($$=mk_case_stm(0, 0, $3, &i_tmp))==0) && (i_tmp=-10)){

 				YYABORT;
 		}
 	}
 	| DEFAULT COLON {

 		if ((($$=mk_case_stm(0, 0, 0, &i_tmp))==0) && (i_tmp==-10)){

 				YYABORT;
 		}
 	}

 	| CASE error COLON actions { $$=0; yyerror("bad case label"); }
 	| CASE SLASH error COLON actions { $$=0; yyerror("bad case regex label"); }
 	| CASE error COLON { $$=0; yyerror("bad case label"); }
 	| CASE SLASH error COLON { $$=0; yyerror("bad case regex label"); }

 	| CASE ct_rval COLON error { $$=0; yyerror ("bad case body"); }
 ;
 case_stms:
 	case_stms single_case {
 		$$=$1;
 		if ($2==0) yyerror ("bad case");
 		if ($$){
 			*($$->append)=$2;
 			if (*($$->append)!=0)
 				$$->append=&((*($$->append))->next);
 		}
 	}
 	| single_case {
 		$$=$1;
 		if ($1==0) yyerror ("bad case");
 		else $$->append=&($$->next);
 	}
 ;
 switch_cmd:
 	  SWITCH rval_expr LBRACE case_stms RBRACE { 
 		$$=0;

 		if ($2==0){
 			yyerror("bad expression in switch(...)");
 			YYERROR;
 		}else if ($4==0){
 			yyerror ("bad switch body");
 			YYERROR;
 		}else if (case_check_default($4)!=0){

 			yyerror_at(&$2->fpos, "bad switch(): too many "
 							"\"default:\" labels\n");

 			YYERROR;
 		}else if (case_check_type($4)!=0){

 			yyerror_at(&$2->fpos, "bad switch(): mixed integer and"
 							" string/RE cases not allowed\n");

 			YYERROR;
 		}else{

 			$$=mk_action(SWITCH_T, 2, RVE_ST, $2, CASE_ST, $4);
 			if ($$==0) {
 				yyerror("internal error");
 				YYABORT;
 			}

 			set_cfg_pos($$);

 		}
 	}
 	| SWITCH rval_expr LBRACE RBRACE {
 		$$=0;
 		warn("empty switch()");

 		if ($2==0){
 			yyerror("bad expression in switch(...)");
 			YYERROR;
 		}else{

 			/* it might have sideffects, so leave it for the optimizer */
 			$$=mk_action(SWITCH_T, 2, RVE_ST, $2, CASE_ST, 0);
 			if ($$==0) {
 				yyerror("internal error");
 				YYABORT;
 			}

 			set_cfg_pos($$);

 		}
 	}
 	| SWITCH error { $$=0; yyerror ("bad expression in switch(...)"); }
 	| SWITCH rval_expr LBRACE error RBRACE 
 		{$$=0; yyerror ("bad switch body"); }
 ;
 

 while_cmd:
 	WHILE rval_expr stm {

 		if ($2 && rval_expr_int_check($2)>=0){
 			warn_ct_rve($2, "while");
 			$$=mk_action( WHILE_T, 2, RVE_ST, $2, ACTIONS_ST, $3);

 			set_cfg_pos($$);

 		}else{

 			yyerror_at(&$2->fpos, "bad while(...) expression");

 			YYERROR;
 		}

 	}
 ;
 

 /* class_id:
 	LBRACK ATTR_USER RBRACK { $$ = AVP_CLASS_USER; }
 	| LBRACK ATTR_DOMAIN RBRACK { $$ = AVP_CLASS_DOMAIN; }
 	| LBRACK ATTR_GLOBAL RBRACK { $$ = AVP_CLASS_GLOBAL; }
 	;
 */
 select_param:
 	ID {
 		if (sel.n >= MAX_SELECT_PARAMS-1) {
 			yyerror("Select identifier too long\n");
 		}
 		sel.params[sel.n].type = SEL_PARAM_STR;
 		sel.params[sel.n].v.s.s = $1;
 		sel.params[sel.n].v.s.len = strlen($1);
 		sel.n++;

 	}

 	| ID LBRACK intno RBRACK {

 		if (sel.n >= MAX_SELECT_PARAMS-2) {
 			yyerror("Select identifier too long\n");
 		}
 		sel.params[sel.n].type = SEL_PARAM_STR;
 		sel.params[sel.n].v.s.s = $1;
 		sel.params[sel.n].v.s.len = strlen($1);
 		sel.n++;
 		sel.params[sel.n].type = SEL_PARAM_INT;
 		sel.params[sel.n].v.i = $3;
 		sel.n++;

 	}

 	| ID LBRACK STRING RBRACK {
 		if (sel.n >= MAX_SELECT_PARAMS-2) {
 			yyerror("Select identifier too long\n");
 		}
 		sel.params[sel.n].type = SEL_PARAM_STR;
 		sel.params[sel.n].v.s.s = $1;
 		sel.params[sel.n].v.s.len = strlen($1);
 		sel.n++;
 		sel.params[sel.n].type = SEL_PARAM_STR;
 		sel.params[sel.n].v.s.s = $3;
 		sel.params[sel.n].v.s.len = strlen($3);
 		sel.n++;
 	}

 	;
 select_params:
 	select_params DOT select_param
 	| select_param
 	;
 select_id:

 	SELECT_MARK { sel.n = 0; sel.f[0] = 0; } select_params {

 		sel_ptr = (select_t*)pkg_malloc(sizeof(select_t));
 		if (!sel_ptr) {
 			yyerror("No memory left to allocate select structure\n");

 		}

 		memcpy(sel_ptr, &sel, sizeof(select_t));
 		$$ = sel_ptr;
 	}
 	;
 attr_class_spec:

 	ATTR_FROM { s_attr->type |= AVP_TRACK_FROM; }
 	| ATTR_TO { s_attr->type |= AVP_TRACK_TO; }

         | ATTR_FROMURI { s_attr->type |= AVP_TRACK_FROM | AVP_CLASS_URI; }
         | ATTR_TOURI { s_attr->type |= AVP_TRACK_TO | AVP_CLASS_URI; }

 	| ATTR_FROMUSER { s_attr->type |= AVP_TRACK_FROM | AVP_CLASS_USER; }

 	| ATTR_TOUSER { s_attr->type |= AVP_TRACK_TO | AVP_CLASS_USER; }
 	| ATTR_FROMDOMAIN { s_attr->type |= AVP_TRACK_FROM | AVP_CLASS_DOMAIN; }
 	| ATTR_TODOMAIN { s_attr->type |= AVP_TRACK_TO | AVP_CLASS_DOMAIN; }
 	| ATTR_GLOBAL { s_attr->type |= AVP_TRACK_ALL | AVP_CLASS_GLOBAL; }
 	;
 attr_name_spec:
 	ID { s_attr->type |= AVP_NAME_STR; s_attr->name.s.s = $1; s_attr->name.s.len = strlen ($1); }
 	;
 attr_spec:
 	attr_name_spec
 	| attr_class_spec DOT attr_name_spec
 	;
 attr_mark:
 	ATTR_MARK {
 		s_attr = (struct avp_spec*)pkg_malloc(sizeof(struct avp_spec));

 		if (!s_attr) { yyerror("No memory left"); YYABORT; }
 		else s_attr->type = 0;

 	}
 	;
 attr_id:
 	attr_mark attr_spec { $$ = s_attr; }
 	;
 attr_id_num_idx:

 	attr_mark attr_spec LBRACK intno RBRACK {

 		s_attr->type|= (AVP_NAME_STR | ($4<0?AVP_INDEX_BACKWARD:AVP_INDEX_FORWARD));
 		s_attr->index = ($4<0?-$4:$4);
 		$$ = s_attr;
 	}
 	;
 attr_id_no_idx:
 	attr_mark attr_spec LBRACK RBRACK {
 		s_attr->type|= AVP_INDEX_ALL;
 		$$ = s_attr;
 	}
 	;
 attr_id_ass:
 	attr_id
 	| attr_id_no_idx
 	;

 /*

 attr_id_val:
 	attr_id
 	| attr_id_num_idx
 	;

 */

 attr_id_any:
 	attr_id
 	| attr_id_no_idx
 	| attr_id_num_idx

 ;

 attr_id_any_str:
 	attr_id

 	| avp_pvar {
 		if ($1->type==LV_AVP){
 			s_attr = pkg_malloc(sizeof(struct avp_spec));
 			if (!s_attr) { yyerror("No memory left"); YYABORT; }
 			else{
 				*s_attr=$1->lv.avps;
 			}

 			$$=s_attr;

 		}else
 			$$=0; /* not an avp, a pvar */
 		pkg_free($1);
 	}

 	| STRING {
 		avp_spec_t *avp_spec;
 		str s;
 		int type, idx;
 		avp_spec = pkg_malloc(sizeof(*avp_spec));
 		if (!avp_spec) {
 			yyerror("Not enough memory");
 			YYABORT;
 		}

 		s.s = $1;
 		if (s.s[0] == '$')
 			s.s++;

 		s.len = strlen(s.s);
 		if (parse_avp_name(&s, &type, &avp_spec->name, &idx)) {
 			yyerror("error when parsing AVP");

 			pkg_free(avp_spec);

 			YYABORT;
 		}
 		avp_spec->type = type;
 		avp_spec->index = idx;
 		$$ = avp_spec;
 	}
 	;

 
 pvar:	PVAR {

 			s_tmp.s=$1; s_tmp.len=strlen($1);

 			pv_spec=pv_cache_get(&s_tmp);
 			if (!pv_spec) {
 				yyerror("Can't get from cache: %s", $1);

 				YYABORT;
 			}
 			$$=pv_spec;
 		}
 	;
 
 avp_pvar:	AVP_OR_PVAR {

 				lval_tmp=pkg_malloc(sizeof(*lval_tmp));
 				if (!lval_tmp) {
 					yyerror("Not enough memory");

 					YYABORT;
 				}

 				memset(lval_tmp, 0, sizeof(*lval_tmp));
 				s_tmp.s=$1; s_tmp.len=strlen(s_tmp.s);

 				lval_tmp->lv.pvs = pv_cache_get(&s_tmp);
 				if (lval_tmp->lv.pvs==NULL){

 					lval_tmp->lv.avps.type|= AVP_NAME_STR;
 					lval_tmp->lv.avps.name.s.s = s_tmp.s+1;
 					lval_tmp->lv.avps.name.s.len = s_tmp.len-1;
 					lval_tmp->type=LV_AVP;
 				}else{
 					lval_tmp->type=LV_PVAR;
 				}
 				$$ = lval_tmp;
 				DBG("parsed ambigous avp/pvar \"%.*s\" to %d\n",
 							s_tmp.len, s_tmp.s, lval_tmp->type);

 			}
 	;
 
 

 /*
 assign_op:
 	ADDEQ { $$ = ADD_T; }
 	| EQUAL { $$ = ASSIGN_T; }
 	;
 */
 assign_op:
 	EQUAL { $$ = ASSIGN_T; }
 	;

 
 
 lval: attr_id_ass {
 					lval_tmp=pkg_malloc(sizeof(*lval_tmp));
 					if (!lval_tmp) {
 						yyerror("Not enough memory");
 						YYABORT;
 					}
 					lval_tmp->type=LV_AVP; lval_tmp->lv.avps=*$1;
 					pkg_free($1); /* free the avp spec we just copied */
 					$$=lval_tmp;
 				}
 	| pvar        {
 					if (!pv_is_w($1))
 						yyerror("read only pvar in assignment left side");
 					if ($1->trans!=0)
 						yyerror("pvar with transformations in assignment"
 								" left side");
 					lval_tmp=pkg_malloc(sizeof(*lval_tmp));
 					if (!lval_tmp) {
 						yyerror("Not enough memory");
 						YYABORT;
 					}

 					lval_tmp->type=LV_PVAR; lval_tmp->lv.pvs=$1;

 					$$=lval_tmp;
 				}
 	| avp_pvar    {
 					if (($1)->type==LV_PVAR){

 						if (!pv_is_w($1->lv.pvs))

 							yyerror("read only pvar in assignment left side");

 						if ($1->lv.pvs->trans!=0)

 							yyerror("pvar with transformations in assignment"
 									" left side");
 					}
 					$$=$1;
 				}
 	;
 

 rval: intno			{$$=mk_rve_rval(RV_INT, (void*)$1); }

 	| STRING			{	s_tmp.s=$1; s_tmp.len=strlen($1);

 							$$=mk_rve_rval(RV_STR, &s_tmp); }
 	| attr_id_any		{$$=mk_rve_rval(RV_AVP, $1); pkg_free($1); }

 	| pvar				{$$=mk_rve_rval(RV_PVAR, $1); }

 	| avp_pvar			{
 							switch($1->type){
 								case LV_AVP:

 									$$=mk_rve_rval(RV_AVP, &$1->lv.avps);

 									break;
 								case LV_PVAR:

 									$$=mk_rve_rval(RV_PVAR, $1->lv.pvs);

 									break;
 								default:
 									yyerror("BUG: invalid lvalue type ");
 									YYABORT;
 							}
 							pkg_free($1); /* not needed anymore */
 						}

 	| select_id			{$$=mk_rve_rval(RV_SEL, $1); pkg_free($1); }
 	| fcmd				{$$=mk_rve_rval(RV_ACTION_ST, $1); }
 	| exp_elem { $$=mk_rve_rval(RV_BEXPR, $1); }
 	| LBRACE actions RBRACE	{$$=mk_rve_rval(RV_ACTION_ST, $2); }

 	| LBRACE error RBRACE	{ $$=0; yyerror("bad command block"); }

 	| LPAREN assign_action RPAREN	{$$=mk_rve_rval(RV_ACTION_ST, $2); }

 	| LPAREN error RPAREN	{ $$=0; yyerror("bad expression"); }

 	;
 
 

 rve_un_op: NOT	{ $$=RVE_LNOT_OP; }

 		|  BIN_NOT 	{ $$=RVE_BNOT_OP; }

 		|  MINUS %prec UNARY	{ $$=RVE_UMINUS_OP; }

 		/* TODO: RVE_BOOL_OP, RVE_NOT_OP? */
 	;
 

 /*

 rve_op:		PLUS		{ $$=RVE_PLUS_OP; }
 		|	MINUS		{ $$=RVE_MINUS_OP; }
 		|	STAR		{ $$=RVE_MUL_OP; }

 		|	SLASH		{ $$=RVE_DIV_OP; }

 		|	MODULO		{ $$=RVE_MOD_OP; }

 	;

 */
 
 rval_expr: rval						{ $$=$1;

 										if ($$==0){

 											/*yyerror("out of memory\n");*/
 											YYERROR;

 										}

 									}

 		| rve_un_op rval_expr %prec UNARY	{$$=mk_rve1($1, $2); }

 		| INTCAST rval_expr				{$$=mk_rve1(RVE_INT_OP, $2); }
 		| STRCAST rval_expr				{$$=mk_rve1(RVE_STR_OP, $2); }

 		| rval_expr PLUS rval_expr		{$$=mk_rve2(RVE_PLUS_OP, $1, $3); }
 		| rval_expr MINUS rval_expr		{$$=mk_rve2(RVE_MINUS_OP, $1, $3); }
 		| rval_expr STAR rval_expr		{$$=mk_rve2(RVE_MUL_OP, $1, $3); }
 		| rval_expr SLASH rval_expr		{$$=mk_rve2(RVE_DIV_OP, $1, $3); }

 		| rval_expr MODULO rval_expr	{$$=mk_rve2(RVE_MOD_OP, $1, $3); }

 		| rval_expr BIN_OR rval_expr	{$$=mk_rve2(RVE_BOR_OP, $1,  $3); }
 		| rval_expr BIN_AND rval_expr	{$$=mk_rve2(RVE_BAND_OP, $1,  $3);}

 		| rval_expr BIN_XOR rval_expr	{$$=mk_rve2(RVE_BXOR_OP, $1,  $3);}
 		| rval_expr BIN_LSHIFT rval_expr {$$=mk_rve2(RVE_BLSHIFT_OP, $1,  $3);}
 		| rval_expr BIN_RSHIFT rval_expr {$$=mk_rve2(RVE_BRSHIFT_OP, $1,  $3);}

 		| rval_expr rve_cmpop rval_expr %prec GT { $$=mk_rve2( $2, $1, $3);}

 		| rval_expr rve_equalop rval_expr %prec EQUAL_T {
 			/* comparing with $null => treat as defined or !defined */
 			if($3->op==RVE_RVAL_OP && $3->left.rval.type==RV_PVAR
 					&& $3->left.rval.v.pvs.type==PVT_NULL) {
 				if($2==RVE_DIFF_OP || $2==RVE_IDIFF_OP
 						|| $2==RVE_STRDIFF_OP) {
 					DBG("comparison with $null switched to notdefined operator\n");
 					$$=mk_rve1(RVE_DEFINED_OP, $1);
 				} else {
 					DBG("comparison with $null switched to defined operator\n");
 					$$=mk_rve1(RVE_NOTDEFINED_OP, $1);
 				}
 				/* free rve struct for $null */
 				rve_destroy($3);
 			} else {
 				$$=mk_rve2($2, $1, $3);
 			}
 		}

 		| rval_expr LOG_AND rval_expr	{ $$=mk_rve2(RVE_LAND_OP, $1, $3);}
 		| rval_expr LOG_OR rval_expr	{ $$=mk_rve2(RVE_LOR_OP, $1, $3);}

 		| LPAREN rval_expr RPAREN		{ $$=$2;}

 		| STRLEN LPAREN rval_expr RPAREN { $$=mk_rve1(RVE_STRLEN_OP, $3);}
 		| STREMPTY LPAREN rval_expr RPAREN {$$=mk_rve1(RVE_STREMPTY_OP, $3);}
 		| DEFINED rval_expr				{ $$=mk_rve1(RVE_DEFINED_OP, $2);}

 		| rve_un_op error %prec UNARY 		{ $$=0; yyerror("bad expression"); }

 		| INTCAST error					{ $$=0; yyerror("bad expression"); }
 		| STRCAST error					{ $$=0; yyerror("bad expression"); }

 		| rval_expr PLUS error			{ $$=0; yyerror("bad expression"); }
 		| rval_expr MINUS error			{ $$=0; yyerror("bad expression"); }
 		| rval_expr STAR error			{ $$=0; yyerror("bad expression"); }
 		| rval_expr SLASH error			{ $$=0; yyerror("bad expression"); }

 		| rval_expr MODULO error			{ $$=0; yyerror("bad expression"); }

 		| rval_expr BIN_OR error		{ $$=0; yyerror("bad expression"); }
 		| rval_expr BIN_AND error		{ $$=0; yyerror("bad expression"); }

 		| rval_expr rve_cmpop error %prec GT

 			{ $$=0; yyerror("bad expression"); }

 		| rval_expr rve_equalop error %prec EQUAL_T

 			{ $$=0; yyerror("bad expression"); }
 		| rval_expr LOG_AND error		{ $$=0; yyerror("bad expression"); }
 		| rval_expr LOG_OR error		{ $$=0; yyerror("bad expression"); }

 		| STRLEN LPAREN error RPAREN	{ $$=0; yyerror("bad expression"); }
 		| STREMPTY LPAREN error RPAREN	{ $$=0; yyerror("bad expression"); }
 		| DEFINED error					{ $$=0; yyerror("bad expression"); }

 		;
 
 assign_action: lval assign_op  rval_expr	{ $$=mk_action($2, 2, LVAL_ST, $1, 

 														 	  RVE_ST, $3);

 											set_cfg_pos($$);

 										}
 	;
 
 /*

 assign_action:
 	attr_id_ass assign_op STRING  { $$=mk_action($2, 2, AVP_ST, $1, STRING_ST, $3); }
 	| attr_id_ass assign_op NUMBER  { $$=mk_action($2, 2, AVP_ST, $1, NUMBER_ST, (void*)$3); }
 	| attr_id_ass assign_op fcmd    { $$=mk_action($2, 2, AVP_ST, $1, ACTION_ST, $3); }
 	| attr_id_ass assign_op attr_id_any { $$=mk_action($2, 2, AVP_ST, $1, AVP_ST, $3); }
 	| attr_id_ass assign_op select_id { $$=mk_action($2, 2, AVP_ST, (void*)$1, SELECT_ST, (void*)$3); }
 	| attr_id_ass assign_op LPAREN exp RPAREN { $$ = mk_action($2, 2, AVP_ST, $1, EXPR_ST, $4); }
 	;

 */

 avpflag_oper:
 	SETAVPFLAG { $$ = 1; }
 	| RESETAVPFLAG { $$ = 0; }
 	| ISAVPFLAGSET { $$ = -1; }
 	;

 cmd:

 	FORWARD LPAREN RPAREN { $$=mk_action(FORWARD_T, 2, URIHOST_ST, 0, URIPORT_ST, 0); set_cfg_pos($$); }

 	| FORWARD LPAREN host RPAREN	{ $$=mk_action(	FORWARD_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$); }

 	| FORWARD LPAREN STRING RPAREN	{ $$=mk_action(	FORWARD_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD LPAREN ip RPAREN	{ $$=mk_action(	FORWARD_T, 2, IP_ST, (void*)$3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD LPAREN host COMMA NUMBER RPAREN { $$=mk_action(FORWARD_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD LPAREN STRING COMMA NUMBER RPAREN {$$=mk_action(FORWARD_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD LPAREN ip COMMA NUMBER RPAREN { $$=mk_action(FORWARD_T, 2, IP_ST, (void*)$3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD LPAREN URIHOST COMMA URIPORT RPAREN { $$=mk_action(FORWARD_T, 2, URIHOST_ST, 0, URIPORT_ST, 0); set_cfg_pos($$); }
 	| FORWARD LPAREN URIHOST COMMA NUMBER RPAREN {$$=mk_action(FORWARD_T, 2, URIHOST_ST, 0, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD LPAREN URIHOST RPAREN { $$=mk_action(FORWARD_T, 2, URIHOST_ST, 0, NUMBER_ST, 0); set_cfg_pos($$); }

 	| FORWARD error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| FORWARD LPAREN error RPAREN { $$=0; yyerror("bad forward argument"); }

 	| FORWARD_UDP LPAREN host RPAREN	{ $$=mk_action(FORWARD_UDP_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN STRING RPAREN	{ $$=mk_action(FORWARD_UDP_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN ip RPAREN	{ $$=mk_action(FORWARD_UDP_T, 2, IP_ST, (void*)$3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN host COMMA NUMBER RPAREN { $$=mk_action(FORWARD_UDP_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN STRING COMMA NUMBER RPAREN {$$=mk_action(FORWARD_UDP_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN ip COMMA NUMBER RPAREN { $$=mk_action(FORWARD_UDP_T, 2, IP_ST, (void*)$3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN URIHOST COMMA URIPORT RPAREN {$$=mk_action(FORWARD_UDP_T, 2, URIHOST_ST, 0, URIPORT_ST, 0); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN URIHOST COMMA NUMBER RPAREN { $$=mk_action(FORWARD_UDP_T, 2, URIHOST_ST, 0, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_UDP LPAREN URIHOST RPAREN { $$=mk_action(FORWARD_UDP_T, 2, URIHOST_ST, 0, NUMBER_ST, 0); set_cfg_pos($$); }

 	| FORWARD_UDP error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| FORWARD_UDP LPAREN error RPAREN { $$=0; yyerror("bad forward_udp argument"); }

 	| FORWARD_TCP LPAREN host RPAREN	{ $$=mk_action(FORWARD_TCP_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN STRING RPAREN	{ $$=mk_action(FORWARD_TCP_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN ip RPAREN	{ $$=mk_action(FORWARD_TCP_T, 2, IP_ST, (void*)$3, NUMBER_ST, 0); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN host COMMA NUMBER RPAREN { $$=mk_action(FORWARD_TCP_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN STRING COMMA NUMBER RPAREN {$$=mk_action(FORWARD_TCP_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN ip COMMA NUMBER RPAREN { $$=mk_action(FORWARD_TCP_T, 2, IP_ST, (void*)$3, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN URIHOST COMMA URIPORT RPAREN {$$=mk_action(FORWARD_TCP_T, 2, URIHOST_ST, 0, URIPORT_ST, 0); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN URIHOST COMMA NUMBER RPAREN { $$=mk_action(FORWARD_TCP_T, 2, URIHOST_ST, 0, NUMBER_ST, (void*)$5); set_cfg_pos($$); }
 	| FORWARD_TCP LPAREN URIHOST RPAREN { $$=mk_action(FORWARD_TCP_T, 2, URIHOST_ST, 0, NUMBER_ST, 0); set_cfg_pos($$); }

 	| FORWARD_TCP error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| FORWARD_TCP LPAREN error RPAREN { $$=0; yyerror("bad forward_tcp argument"); }
 	| FORWARD_TLS LPAREN host RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN STRING RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN ip RPAREN	{
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, IP_ST, (void*)$3, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN host COMMA NUMBER RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN STRING COMMA NUMBER RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN ip COMMA NUMBER RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, IP_ST, (void*)$3, NUMBER_ST, (void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 					}
 	| FORWARD_TLS LPAREN URIHOST COMMA URIPORT RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, URIHOST_ST, 0, URIPORT_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN URIHOST COMMA NUMBER RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, URIHOST_ST, 0, NUMBER_ST, (void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS LPAREN URIHOST RPAREN {
 		#ifdef USE_TLS

 			$$=mk_action(FORWARD_TLS_T, 2, URIHOST_ST, 0, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif
 	}
 	| FORWARD_TLS error { $$=0; yyerror("missing '(' or ')' ?"); }

 	| FORWARD_TLS LPAREN error RPAREN { $$=0; 
 									yyerror("bad forward_tls argument"); }
 	| FORWARD_SCTP LPAREN host RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN STRING RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, STRING_ST, $3, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN ip RPAREN	{

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, IP_ST, (void*)$3, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN host COMMA NUMBER RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, STRING_ST, $3, NUMBER_ST,

 							(void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN STRING COMMA NUMBER RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, STRING_ST, $3, NUMBER_ST,

 							(void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN ip COMMA NUMBER RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, IP_ST, (void*)$3, NUMBER_ST, 

 							(void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 					}
 	| FORWARD_SCTP LPAREN URIHOST COMMA URIPORT RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, URIHOST_ST, 0, URIPORT_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN URIHOST COMMA NUMBER RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, URIHOST_ST, 0, NUMBER_ST,

 							(void*)$5); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("sctp support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP LPAREN URIHOST RPAREN {

 		#ifdef USE_SCTP

 			$$=mk_action(FORWARD_SCTP_T, 2, URIHOST_ST, 0, NUMBER_ST, 0); set_cfg_pos($$);

 		#else
 			$$=0;
 			yyerror("tls support not compiled in");
 		#endif

 	}
 	| FORWARD_SCTP error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| FORWARD_SCTP LPAREN error RPAREN { $$=0; 

 									yyerror("bad forward_sctp argument"); }

 	| LOG_TOK LPAREN STRING RPAREN	{$$=mk_action(LOG_T, 2, NUMBER_ST,

 										(void*)(L_DBG+1), STRING_ST, $3);
 									set_cfg_pos($$); }
 	| LOG_TOK LPAREN NUMBER COMMA STRING RPAREN	{$$=mk_action(LOG_T, 2, NUMBER_ST, (void*)$3, STRING_ST, $5); set_cfg_pos($$); }

 	| LOG_TOK error 		{ $$=0; yyerror("missing '(' or ')' ?"); }
 	| LOG_TOK LPAREN error RPAREN	{ $$=0; yyerror("bad log argument"); }

 	| SETFLAG LPAREN NUMBER RPAREN	{
 							if (check_flag($3)==-1)
 								yyerror("bad flag value");
 							$$=mk_action(SETFLAG_T, 1, NUMBER_ST,
 													(void*)$3);

 							set_cfg_pos($$);

 									}
 	| SETFLAG LPAREN flag_name RPAREN	{
 							i_tmp=get_flag_no($3, strlen($3));
 							if (i_tmp<0) yyerror("flag not declared");
 							$$=mk_action(SETFLAG_T, 1, NUMBER_ST,

 										(void*)(long)i_tmp);

 							set_cfg_pos($$);

 									}

 	| SETFLAG error			{ $$=0; yyerror("missing '(' or ')'?"); }

 	| RESETFLAG LPAREN NUMBER RPAREN {
 							if (check_flag($3)==-1)
 								yyerror("bad flag value");
 							$$=mk_action(RESETFLAG_T, 1, NUMBER_ST, (void*)$3);

 							set_cfg_pos($$);

 									}
 	| RESETFLAG LPAREN flag_name RPAREN	{
 							i_tmp=get_flag_no($3, strlen($3));
 							if (i_tmp<0) yyerror("flag not declared");
 							$$=mk_action(RESETFLAG_T, 1, NUMBER_ST,

 										(void*)(long)i_tmp);

 							set_cfg_pos($$);

 									}

 	| RESETFLAG error		{ $$=0; yyerror("missing '(' or ')'?"); }

 	| ISFLAGSET LPAREN NUMBER RPAREN {
 							if (check_flag($3)==-1)
 								yyerror("bad flag value");
 							$$=mk_action(ISFLAGSET_T, 1, NUMBER_ST, (void*)$3);

 							set_cfg_pos($$);

 									}
 	| ISFLAGSET LPAREN flag_name RPAREN	{
 							i_tmp=get_flag_no($3, strlen($3));
 							if (i_tmp<0) yyerror("flag not declared");
 							$$=mk_action(ISFLAGSET_T, 1, NUMBER_ST,

 										(void*)(long)i_tmp);

 							set_cfg_pos($$);

 									}

 	| ISFLAGSET error { $$=0; yyerror("missing '(' or ')'?"); }

 	| avpflag_oper LPAREN attr_id_any_str COMMA flag_name RPAREN {
 		i_tmp=get_avpflag_no($5);
 		if (i_tmp==0) yyerror("avpflag not declared");
 		$$=mk_action(AVPFLAG_OPER_T, 3, AVP_ST, $3, NUMBER_ST, (void*)(long)i_tmp, NUMBER_ST, (void*)$1);

 		set_cfg_pos($$);

 	}

 	| avpflag_oper LPAREN attr_id_any_str COMMA error RPAREN {
 		$$=0; yyerror("error parsing flag name");
 	}
 	| avpflag_oper LPAREN error COMMA flag_name RPAREN {
 		$$=0; yyerror("error parsing first parameter (avp or string)");
 	}
 	| avpflag_oper LPAREN error RPAREN { $$=0; yyerror("bad parameters"); }

 	| avpflag_oper error { $$=0; yyerror("missing '(' or ')'?"); }

 	| ERROR LPAREN STRING COMMA STRING RPAREN {$$=mk_action(ERROR_T, 2, STRING_ST, $3, STRING_ST, $5);
 			set_cfg_pos($$);
 	}

 	| ERROR error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| ERROR LPAREN error RPAREN { $$=0; yyerror("bad error argument"); }

 	| ROUTE LPAREN rval_expr RPAREN	{
 		if ($3) {
 			$$ = mk_action(ROUTE_T, 1, RVE_ST, (void*)$3);
 			set_cfg_pos($$);
 		} else {
 			$$ = 0;
 			YYERROR;
 		}
 	}
 	| ROUTE LPAREN ID RPAREN	{

 		if ($3) {
 			$$ = mk_action(ROUTE_T, 1, STRING_ST, (void*)$3);
 			set_cfg_pos($$);
 		} else {
 			$$ = 0;
 			YYERROR;
 		}
 	}

 	| ROUTE error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| ROUTE LPAREN error RPAREN { $$=0; yyerror("bad route argument"); }

 	| EXEC LPAREN STRING RPAREN	{ $$=mk_action(EXEC_T, 1, STRING_ST, $3); set_cfg_pos($$); }
 	| SET_HOST LPAREN STRING RPAREN { $$=mk_action(SET_HOST_T, 1, STRING_ST, $3); set_cfg_pos($$); }

 	| SET_HOST error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_HOST LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| PREFIX LPAREN STRING RPAREN { $$=mk_action(PREFIX_T, 1, STRING_ST,  $3); set_cfg_pos($$); }

 	| PREFIX error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| PREFIX LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| STRIP_TAIL LPAREN NUMBER RPAREN { $$=mk_action(STRIP_TAIL_T, 1, NUMBER_ST, (void*)$3); set_cfg_pos($$); }

 	| STRIP_TAIL error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| STRIP_TAIL LPAREN error RPAREN { $$=0; yyerror("bad argument, number expected"); }

 	| STRIP LPAREN NUMBER RPAREN { $$=mk_action(STRIP_T, 1, NUMBER_ST, (void*) $3); set_cfg_pos($$); }

 	| STRIP error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| STRIP LPAREN error RPAREN { $$=0; yyerror("bad argument, number expected"); }

 	| SET_USERPHONE LPAREN RPAREN { $$=mk_action(SET_USERPHONE_T, 0); set_cfg_pos($$); }

 	| SET_USERPHONE error { $$=0; yyerror("missing '(' or ')' ?"); }

 	| REMOVE_BRANCH LPAREN intno RPAREN {

 			$$=mk_action(REMOVE_BRANCH_T, 1, NUMBER_ST, (void*)$3);
 			set_cfg_pos($$);
 	}
 	| REMOVE_BRANCH LPAREN RPAREN {
 			$$=mk_action(REMOVE_BRANCH_T, 0);
 			set_cfg_pos($$);
 	}
 	| REMOVE_BRANCH error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| REMOVE_BRANCH LPAREN error RPAREN { $$=0; yyerror("bad argument, number expected"); }
 	| CLEAR_BRANCHES LPAREN RPAREN { $$=mk_action(CLEAR_BRANCHES_T, 0); set_cfg_pos($$); }

 	| SET_HOSTPORT LPAREN STRING RPAREN { $$=mk_action(SET_HOSTPORT_T, 1, STRING_ST, $3); set_cfg_pos($$); }

 	| SET_HOSTPORT error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_HOSTPORT LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| SET_HOSTPORTTRANS LPAREN STRING RPAREN { $$=mk_action(SET_HOSTPORTTRANS_T, 1, STRING_ST, $3); set_cfg_pos($$); }

 	| SET_HOSTPORTTRANS error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_HOSTPORTTRANS LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| SET_PORT LPAREN STRING RPAREN { $$=mk_action(SET_PORT_T, 1, STRING_ST, $3); set_cfg_pos($$); }

 	| SET_PORT error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_PORT LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| SET_USER LPAREN STRING RPAREN { $$=mk_action(SET_USER_T, 1, STRING_ST, $3); set_cfg_pos($$); }

 	| SET_USER error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_USER LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| SET_USERPASS LPAREN STRING RPAREN { $$=mk_action(SET_USERPASS_T, 1, STRING_ST, $3); set_cfg_pos($$); }

 	| SET_USERPASS error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_USERPASS LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| SET_URI LPAREN STRING RPAREN { $$=mk_action(SET_URI_T, 1, STRING_ST,$3); set_cfg_pos($$); }

 	| SET_URI error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_URI LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }

 	| REVERT_URI LPAREN RPAREN { $$=mk_action(REVERT_URI_T, 0); set_cfg_pos($$); }
 	| REVERT_URI { $$=mk_action(REVERT_URI_T, 0); set_cfg_pos($$); }
 	| FORCE_RPORT LPAREN RPAREN	{ $$=mk_action(FORCE_RPORT_T, 0); set_cfg_pos($$); }
 	| FORCE_RPORT	{$$=mk_action(FORCE_RPORT_T, 0); set_cfg_pos($$); }
 	| ADD_LOCAL_RPORT LPAREN RPAREN	{ $$=mk_action(ADD_LOCAL_RPORT_T, 0); set_cfg_pos($$); }
 	| ADD_LOCAL_RPORT	{$$=mk_action(ADD_LOCAL_RPORT_T, 0); set_cfg_pos($$); }

 	| FORCE_TCP_ALIAS LPAREN NUMBER RPAREN	{
 		#ifdef USE_TCP
 			$$=mk_action(FORCE_TCP_ALIAS_T, 1, NUMBER_ST, (void*)$3);

 			set_cfg_pos($$);

 		#else
 			yyerror("tcp support not compiled in");
 		#endif
 	}
 	| FORCE_TCP_ALIAS LPAREN RPAREN	{
 		#ifdef USE_TCP
 			$$=mk_action(FORCE_TCP_ALIAS_T, 0);

 			set_cfg_pos($$);

 		#else
 			yyerror("tcp support not compiled in");
 		#endif
 	}
 	| FORCE_TCP_ALIAS				{
 		#ifdef USE_TCP
 			$$=mk_action(FORCE_TCP_ALIAS_T, 0);

 			set_cfg_pos($$);

 		#else
 			yyerror("tcp support not compiled in");
 		#endif
 	}
 	| FORCE_TCP_ALIAS LPAREN error RPAREN	{$$=0; yyerror("bad argument, number expected"); }

 	| UDP_MTU_TRY_PROTO LPAREN proto RPAREN

 		{ $$=mk_action(UDP_MTU_TRY_PROTO_T, 1, NUMBER_ST, $3); set_cfg_pos($$); }

 	| UDP_MTU_TRY_PROTO LPAREN error RPAREN
 		{ $$=0; yyerror("bad argument, UDP, TCP, TLS or SCTP expected"); }

 	| SET_ADV_ADDRESS LPAREN listen_id RPAREN {
 		$$=0;
 		if ((str_tmp=pkg_malloc(sizeof(str)))==0) {
 			LOG(L_CRIT, "ERROR: cfg. parser: out of memory.\n");
 		} else {
 			str_tmp->s=$3;

 			str_tmp->len=$3?strlen($3):0;

 			$$=mk_action(SET_ADV_ADDR_T, 1, STR_ST, str_tmp);

 			set_cfg_pos($$);

 		}
 	}
 	| SET_ADV_ADDRESS LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }
 	| SET_ADV_ADDRESS error {$$=0; yyerror("missing '(' or ')' ?"); }
 	| SET_ADV_PORT LPAREN NUMBER RPAREN {
 		$$=0;
 		tmp=int2str($3, &i_tmp);
 		if ((str_tmp=pkg_malloc(sizeof(str)))==0) {
 			LOG(L_CRIT, "ERROR: cfg. parser: out of memory.\n");
 		} else {
 			if ((str_tmp->s=pkg_malloc(i_tmp))==0) {
 				LOG(L_CRIT, "ERROR: cfg. parser: out of memory.\n");
 			} else {
 				memcpy(str_tmp->s, tmp, i_tmp);
 				str_tmp->len=i_tmp;
 				$$=mk_action(SET_ADV_PORT_T, 1, STR_ST, str_tmp);

 				set_cfg_pos($$);

 			}
 		}

 	}
 	| SET_ADV_PORT LPAREN error RPAREN { $$=0; yyerror("bad argument, string expected"); }
 	| SET_ADV_PORT  error {$$=0; yyerror("missing '(' or ')' ?"); }

 	| FORCE_SEND_SOCKET LPAREN phostport RPAREN { 
 		$$=mk_action(FORCE_SEND_SOCKET_T, 1, SOCKID_ST, $3);

 		set_cfg_pos($$);

 	}
 	| FORCE_SEND_SOCKET LPAREN error RPAREN {
 		$$=0; yyerror("bad argument, [proto:]host[:port] expected");
 	}

 	| FORCE_SEND_SOCKET error {$$=0; yyerror("missing '(' or ')' ?"); }

 	| SET_FWD_NO_CONNECT LPAREN RPAREN	{
 		$$=mk_action(SET_FWD_NO_CONNECT_T, 0); set_cfg_pos($$);
 	}
 	| SET_FWD_NO_CONNECT	{
 		$$=mk_action(SET_FWD_NO_CONNECT_T, 0); set_cfg_pos($$);
 	}
 	| SET_RPL_NO_CONNECT LPAREN RPAREN	{
 		$$=mk_action(SET_RPL_NO_CONNECT_T, 0); set_cfg_pos($$);
 	}
 	| SET_RPL_NO_CONNECT	{
 		$$=mk_action(SET_RPL_NO_CONNECT_T, 0); set_cfg_pos($$);
 	}
 	| SET_FWD_CLOSE LPAREN RPAREN	{
 		$$=mk_action(SET_FWD_CLOSE_T, 0); set_cfg_pos($$);
 	}
 	| SET_FWD_CLOSE	{
 		$$=mk_action(SET_FWD_CLOSE_T, 0); set_cfg_pos($$);
 	}
 	| SET_RPL_CLOSE LPAREN RPAREN	{
 		$$=mk_action(SET_RPL_CLOSE_T, 0); set_cfg_pos($$);
 	}
 	| SET_RPL_CLOSE	{
 		$$=mk_action(SET_RPL_CLOSE_T, 0); set_cfg_pos($$);
 	}

 	| CFG_SELECT LPAREN STRING COMMA NUMBER RPAREN {
 		$$=mk_action(CFG_SELECT_T, 2, STRING_ST, $3, NUMBER_ST, (void*)$5); set_cfg_pos($$);
 	}
 	| CFG_SELECT LPAREN STRING COMMA rval_expr RPAREN {
 		$$=mk_action(CFG_SELECT_T, 2, STRING_ST, $3, RVE_ST, $5); set_cfg_pos($$);
 	}
 	| CFG_SELECT error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| CFG_SELECT LPAREN error RPAREN { $$=0; yyerror("bad arguments, string and number expected"); }
 	| CFG_RESET LPAREN STRING RPAREN {
 		$$=mk_action(CFG_RESET_T, 1, STRING_ST, $3); set_cfg_pos($$);
 	}
 	| CFG_RESET error { $$=0; yyerror("missing '(' or ')' ?"); }
 	| CFG_RESET LPAREN error RPAREN { $$=0; yyerror("bad arguments, string expected"); }

 	| ID {mod_func_action = mk_action(MODULE0_T, 2, MODEXP_ST, NULL, NUMBER_ST,

 			0); } LPAREN func_params RPAREN	{

 		mod_func_action->val[0].u.data =

 			find_export_record($1, mod_func_action->val[1].u.number, rt,
 								&u_tmp);

 		if (mod_func_action->val[0].u.data == 0) {

 			if (find_export_record($1, mod_func_action->val[1].u.number, 0,
 									&u_tmp) ) {

 					LOG(L_ERR, "misused command %s\n", $1);

 					yyerror("Command cannot be used in the block\n");
 			} else {

 				LOG(L_ERR, "cfg. parser: failed to find command %s (params %ld)\n",
 						$1, mod_func_action->val[1].u.number);

 				yyerror("unknown command, missing loadmodule?\n");
 			}

 			free_mod_func_action(mod_func_action);

 			mod_func_action=0;

 		}else{

 			if (mod_func_action && mod_f_params_pre_fixup(mod_func_action)<0) {
 				/* error messages are printed inside the function */
 				free_mod_func_action(mod_func_action);
 				mod_func_action = 0;
 				YYERROR;

 			}

 		}
 		$$ = mod_func_action;

 		set_cfg_pos($$);

 	}

 	| ID error					{ yyerror("'('')' expected (function call)");}

 	;
 func_params:
 	/* empty */
 	| func_params COMMA func_param { }
 	| func_param {}
 	;
 func_param:

 	rval_expr {
 		if ($1 && mod_func_action->val[1].u.number < MAX_ACTIONS-2) {

 			mod_func_action->val[mod_func_action->val[1].u.number+2].type =

 				RVE_ST;
 			mod_func_action->val[mod_func_action->val[1].u.number+2].u.data =

 				$1;

 			mod_func_action->val[1].u.number++;

 		} else if ($1) {

 			yyerror("Too many arguments\n");

 			YYERROR;

 		} else {

 			YYERROR;

 		}
 	}

 	;

 
 ret_cmd:
 	DROP LPAREN RPAREN		{

 		$$=mk_action(DROP_T, 2, NUMBER_ST, 0, NUMBER_ST,

 						(void*)(DROP_R_F|EXIT_R_F)); set_cfg_pos($$);

 	}
 	| DROP rval_expr	{

 		$$=mk_action(DROP_T, 2, RVE_ST, $2, NUMBER_ST,

 						(void*)(DROP_R_F|EXIT_R_F)); set_cfg_pos($$);

 	}
 	| DROP				{

 		$$=mk_action(DROP_T, 2, NUMBER_ST, 0, NUMBER_ST, 

 						(void*)(DROP_R_F|EXIT_R_F)); set_cfg_pos($$);

 	}
 	| EXIT LPAREN RPAREN		{

 		$$=mk_action(DROP_T, 2, NUMBER_ST, (void*)1, NUMBER_ST,
 						(void*)EXIT_R_F);

 		set_cfg_pos($$);

 	}
 	| EXIT rval_expr	{
 		$$=mk_action(DROP_T, 2, RVE_ST, $2, NUMBER_ST, (void*)EXIT_R_F);

 		set_cfg_pos($$);

 	}
 	| EXIT				{

 		$$=mk_action(DROP_T, 2, NUMBER_ST, (void*)1, NUMBER_ST,
 						(void*)EXIT_R_F);

 		set_cfg_pos($$);

 	}
 	| RETURN			{
 		$$=mk_action(DROP_T, 2, NUMBER_ST, (void*)1, NUMBER_ST,

 						(void*)RETURN_R_F); set_cfg_pos($$);

 	}

 	| RETURN  LPAREN RPAREN		{
 		$$=mk_action(DROP_T, 2, NUMBER_ST, (void*)1, NUMBER_ST,

 						(void*)RETURN_R_F); set_cfg_pos($$);

 	}

 	| RETURN rval_expr	{
 		$$=mk_action(DROP_T, 2, RVE_ST, $2, NUMBER_ST, (void*)RETURN_R_F);

 		set_cfg_pos($$);

 	}
 	| BREAK				{

 		$$=mk_action(DROP_T, 2, NUMBER_ST, 0, NUMBER_ST, (void*)BREAK_R_F);
 		set_cfg_pos($$);

 	}
 	;
 

 %%
 

 static void get_cpos(struct cfg_pos* pos)
 {
 	pos->s_line=startline;
 	pos->e_line=line;
 	pos->s_col=startcolumn;
 	pos->e_col=column-1;

 	if(finame==0)
 		finame = (cfg_file!=0)?cfg_file:"default";
 	pos->fname=finame;

 	pos->rname=(routename!=0)?routename:default_routename;

 }
 
 

 static void warn_at(struct cfg_pos* p, char* format, ...)

 {

 	va_list ap;
 	char s[256];
 	
 	va_start(ap, format);
 	vsnprintf(s, sizeof(s), format, ap);
 	va_end(ap);
 	if (p->e_line!=p->s_line)

 		LOG(L_WARN, "warning in config file %s, from line %d, column %d to"

 					" line %d, column %d: %s\n",

 					p->fname, p->s_line, p->s_col, p->e_line, p->e_col, s);

 	else if (p->s_col!=p->e_col)

 		LOG(L_WARN, "warning in config file %s, line %d, column %d-%d: %s\n",
 					p->fname, p->s_line, p->s_col, p->e_col, s);

 	else

 		LOG(L_WARN, "warning in config file %s, line %d, column %d: %s\n",
 				p->fname, p->s_line, p->s_col, s);

 	cfg_warnings++;

 }

 static void yyerror_at(struct cfg_pos* p, char* format, ...)

 {

 	va_list ap;
 	char s[256];
 	
 	va_start(ap, format);
 	vsnprintf(s, sizeof(s), format, ap);
 	va_end(ap);

 	if (p->e_line!=p->s_line)

 		LOG(L_CRIT, "parse error in config file %s, from line %d, column %d"

 					" to line %d, column %d: %s\n",

 					p->fname, p->s_line, p->s_col, p->e_line, p->e_col, s);

 	else if (p->s_col!=p->e_col)

 		LOG(L_CRIT,"parse error in config file %s, line %d, column %d-%d: %s\n",
 					p->fname, p->s_line, p->s_col, p->e_col, s);

 	else

 		LOG(L_CRIT, "parse error in config file %s, line %d, column %d: %s\n",
 					p->fname, p->s_line, p->s_col, s);

 	cfg_errors++;

 }
 

 
 static void warn(char* format, ...)
 {
 	va_list ap;
 	char s[256];
 	struct cfg_pos pos;
 	
 	get_cpos(&pos);
 	va_start(ap, format);
 	vsnprintf(s, sizeof(s), format, ap);
 	va_end(ap);
 	warn_at(&pos, s);
 }
 
 
 

 static void yyerror(char* format, ...)
 {
 	va_list ap;
 	char s[256];
 	struct cfg_pos pos;
 	
 	get_cpos(&pos);
 	va_start(ap, format);
 	vsnprintf(s, sizeof(s), format, ap);
 	va_end(ap);
 	yyerror_at(&pos, s);
 }
 
 
 

 /** mk_rval_expr_v wrapper.
  *  checks mk_rval_expr_v return value and sets the cfg. pos
  *  (line and column numbers)
  *  @return rval_expr* on success, 0 on error (@see mk_rval_expr_v)
  */
 static struct rval_expr* mk_rve_rval(enum rval_type type, void* v)
 {
 	struct rval_expr* ret;

 	struct cfg_pos pos;

 	get_cpos(&pos);
 	ret=mk_rval_expr_v(type, v, &pos);

 	if (ret==0){
 		yyerror("internal error: failed to create rval expr");
 		/* YYABORT; */
 	}
 	return ret;
 }
 
 
 /** mk_rval_expr1 wrapper.
  *  checks mk_rval_expr1 return value (!=0 and type checking)
  *  @return rval_expr* on success, 0 on error (@see mk_rval_expr1)
  */
 static struct rval_expr* mk_rve1(enum rval_expr_op op, struct rval_expr* rve1)
 {
 	struct rval_expr* ret;
 	struct rval_expr* bad_rve;
 	enum rval_type type, bad_t, exp_t;
 	

 	if (rve1==0)
 		return 0;
 	ret=mk_rval_expr1(op, rve1, &rve1->fpos);

 	if (ret && (rve_check_type(&type, ret, &bad_rve, &bad_t, &exp_t)!=1)){

 		yyerror_at(&rve1->fpos, "bad expression: type mismatch"
 					" (%s instead of %s)", rval_type_name(bad_t),
 					rval_type_name(exp_t));

 		rve_destroy(ret);
 		ret=0;

 	}
 	return ret;
 }
 
 
 /** mk_rval_expr2 wrapper.
  *  checks mk_rval_expr2 return value (!=0 and type checking)
  *  @return rval_expr* on success, 0 on error (@see mk_rval_expr2)
  */
 static struct rval_expr* mk_rve2(enum rval_expr_op op, struct rval_expr* rve1,
 									struct rval_expr* rve2)
 {
 	struct rval_expr* ret;
 	struct rval_expr* bad_rve;

 	enum rval_type type, bad_t, exp_t;
 	struct cfg_pos pos;

 	if ((rve1==0) || (rve2==0))
 		return 0;

 	bad_rve=0;
 	bad_t=0;
 	exp_t=0;

 	cfg_pos_join(&pos, &rve1->fpos, &rve2->fpos);

 	ret=mk_rval_expr2(op, rve1, rve2, &pos);

 	if (ret && (rve_check_type(&type, ret, &bad_rve, &bad_t, &exp_t)!=1)){

 		if (bad_rve)
 			yyerror_at(&pos, "bad expression: type mismatch:"

 						" %s instead of %s at (%d,%d)",
 						rval_type_name(bad_t), rval_type_name(exp_t),
 						bad_rve->fpos.s_line, bad_rve->fpos.s_col);

 		else
 			yyerror("BUG: unexpected null \"bad\" expression\n");

 		rve_destroy(ret);
 		ret=0;

 	}
 	return ret;
 }
 
 

 /** check if the expression is an int.
  * if the expression does not evaluate to an int return -1 and
  * log an error.

  * @return 0 success, no warnings; 1 success but warnings; -1 on error */

 static int rval_expr_int_check(struct rval_expr *rve)
 {
 	struct rval_expr* bad_rve;
 	enum rval_type type, bad_t, exp_t;
 	
 	if (rve==0){
 		yyerror("invalid expression");
 		return -1;
 	}else if (!rve_check_type(&type, rve, &bad_rve, &bad_t ,&exp_t)){
 		if (bad_rve)
 			yyerror_at(&rve->fpos, "bad expression: type mismatch:"
 						" %s instead of %s at (%d,%d)",
 						rval_type_name(bad_t), rval_type_name(exp_t),
 						bad_rve->fpos.s_line, bad_rve->fpos.s_col);
 		else
 			yyerror("BUG: unexpected null \"bad\" expression\n");
 		return -1;
 	}else if (type!=RV_INT && type!=RV_NONE){

 		warn_at(&rve->fpos, "non-int expression (you might want to use"
 				" casts)\n");
 		return 1;

 	}
 	return 0;
 }
 
 
 /** warn if the expression is constant.
  * @return 0 on success (no warning), 1 when warning */
 static int warn_ct_rve(struct rval_expr *rve, char* name)
 {
 	if (rve && rve_is_constant(rve)){
 		warn_at(&rve->fpos, "constant value in %s%s",
 				name?name:"expression", name?"(...)":"");
 		return 1;
 	}
 	return 0;
 }
 
 

 static struct name_lst* mk_name_lst(char* host, int flags)
 {
 	struct name_lst* l;

 	if (host==0) return 0;

 	l=pkg_malloc(sizeof(struct name_lst));
 	if (l==0) {
 		LOG(L_CRIT,"ERROR: cfg. parser: out of memory.\n");
 	} else {
 		l->name=host;
 		l->flags=flags;
 		l->next=0;
 	}
 	return l;
 }
 
 

 static struct socket_id* mk_listen_id(char* host, int proto, int port)

 {

 	struct socket_id* l;

 	if (host==0) return 0;

 	l=pkg_malloc(sizeof(struct socket_id));

 	if (l==0) {

 		LOG(L_CRIT,"ERROR: cfg. parser: out of memory.\n");

 	} else {

 		l->addr_lst=mk_name_lst(host, 0);
 		if (l->addr_lst==0){
 			pkg_free(l);
 			return 0;
 		}
 		l->flags=0;

 		l->port=port;
 		l->proto=proto;
 		l->next=0;
 	}
 	return l;
 }
 
 

 static void free_name_lst(struct name_lst* lst)
 {
 	struct name_lst* tmp;
 	
 	while(lst){
 		tmp=lst;
 		lst=lst->next;
 		pkg_free(tmp);
 	}
 }
 
 
 static struct socket_id* mk_listen_id2(struct name_lst* addr_l, int proto,
 										int port)
 {
 	struct socket_id* l;

 	if (addr_l==0) return 0;

 	l=pkg_malloc(sizeof(struct socket_id));
 	if (l==0) {
 		LOG(L_CRIT,"ERROR: cfg. parser: out of memory.\n");
 	} else {
 		l->flags=addr_l->flags;
 		l->port=port;
 		l->proto=proto;
 		l->addr_lst=addr_l;
 		l->next=0;
 	}
 	return l;
 }
 
 
 static void free_socket_id(struct socket_id* i)
 {
 	free_name_lst(i->addr_lst);
 	pkg_free(i);
 }
 
 
 static void free_socket_id_lst(struct socket_id* lst)
 {
 	struct socket_id* tmp;
 	
 	while(lst){
 		tmp=lst;
 		lst=lst->next;
 		free_socket_id(tmp);
 	}
 }
 

 /** create a temporary case statmenet structure.
  *  *err will be filled in case of error (return == 0):
  *   -1 - non constant expression
  *   -2 - expression error (bad type)
  *   -10 - memory allocation error
  */
 static struct case_stms* mk_case_stm(struct rval_expr* ct, int is_re,
 											struct action* a, int* err)

 {
 	struct case_stms* s;

 	struct rval_expr* bad_rve;
 	enum rval_type type, bad_t, exp_t;
 	enum match_str_type t;
 	
 	t=MATCH_UNKNOWN;
 	if (ct){
 		/* if ct!=0 => case, else if ct==0 is a default */
 		if (!rve_is_constant(ct)){
 			yyerror_at(&ct->fpos, "non constant expression in case");
 			*err=-1;
 			return 0;
 		}
 		if (rve_check_type(&type, ct, &bad_rve, &bad_t, &exp_t)!=1){
 			yyerror_at(&ct->fpos, "bad expression: type mismatch:"
 							" %s instead of %s at (%d,%d)",
 							rval_type_name(bad_t), rval_type_name(exp_t),
 							bad_rve->fpos.s_line, bad_rve->fpos.s_col);
 			*err=-2;
 			return 0;
 		}
 		if (is_re)
 			t=MATCH_RE;
 		else if (type==RV_STR)
 			t=MATCH_STR;
 		else
 			t=MATCH_INT;
 	}
 

 	s=pkg_malloc(sizeof(*s));
 	if (s==0) {

 		yyerror("internal error: memory allocation failure");
 		*err=-10;

 	} else {
 		memset(s, 0, sizeof(*s));
 		s->ct_rve=ct;

 		s->type=t;

 		s->actions=a;
 		s->next=0;
 		s->append=0;
 	}
 	return s;
 }
 

 
 /*
  * @return 0 on success, -1 on error.
  */
 static int case_check_type(struct case_stms* stms)
 {
 	struct case_stms* c;
 	struct case_stms* s;
 	
 	for(c=stms; c ; c=c->next){
 		if (!c->ct_rve) continue;
 		for (s=c->next; s; s=s->next){
 			if (!s->ct_rve) continue;
 			if ((s->type!=c->type) &&
 				!(	(c->type==MATCH_STR || c->type==MATCH_RE) &&
 					(s->type==MATCH_STR || s->type==MATCH_RE) ) ){
 					yyerror_at(&s->ct_rve->fpos, "type mismatch in case");
 					return -1;
 			}
 		}
 	}
 	return 0;
 }
 
 
 /*
  * @return 0 on success, -1 on error.
  */
 static int case_check_default(struct case_stms* stms)
 {
 	struct case_stms* c;
 	int default_no;
 	
 	default_no=0;
 	for(c=stms; c ; c=c->next)
 		if (c->ct_rve==0) default_no++;
 	return (default_no<=1)?0:-1;
 }
 
 
 

 /** fixes the parameters and the type of a module function call.
  * It is done here instead of fix action, to have quicker feedback
  * on error cases (e.g. passing a non constant to a function with a 
  * declared fixup) 
  * The rest of the fixup is done inside do_action().
  * @param a - filled module function call (MODULE*_T) action structure
  *            complete with parameters, starting at val[2] and parameter
  *            number at val[1].
  * @return 0 on success, -1 on error (it will also print the error msg.).
  *
  */
 static int mod_f_params_pre_fixup(struct action* a)
 {

 	sr31_cmd_export_t* cmd_exp;

 	action_u_t* params;
 	int param_no;
 	struct rval_expr* rve;
 	struct rvalue* rv;
 	int r;
 	str s;
 	
 	cmd_exp = a->val[0].u.data;
 	param_no = a->val[1].u.number;
 	params = &a->val[2];
 	

 	switch(cmd_exp->param_no) {

 		case 0:
 			a->type = MODULE0_T;
 			break;
 		case 1:
 			a->type = MODULE1_T;
 			break;
 		case 2:
 			a->type = MODULE2_T;
 			break;
 		case 3:
 			a->type = MODULE3_T;
 			break;
 		case 4:
 			a->type = MODULE4_T;
 			break;
 		case 5:
 			a->type = MODULE5_T;
 			break;
 		case 6:
 			a->type = MODULE6_T;
 			break;
 		case VAR_PARAM_NO:
 			a->type = MODULEX_T;
 			break;
 		default:
 			yyerror("function %s: bad definition"

 					" (invalid number of parameters)", cmd_exp->name);

 			return -1;
 	}
 	

 	if ( cmd_exp->fixup) {
 		if (is_fparam_rve_fixup(cmd_exp->fixup))

 			/* mark known fparam rve safe fixups */

 			cmd_exp->fixup_flags  |= FIXUP_F_FPARAM_RVE;