/*
* $Id$
*
* route structures helping functions
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* History:
* --------
* 2003-01-29 src_port introduced (jiri)
* 2003-03-19 replaced all mallocs/frees w/ pkg_malloc/pkg_free (andrei)
* 2003-04-12 FORCE_RPORT_T added (andrei)
* 2003-10-02 added SET_ADV_ADDRESS & SET_ADV_PORT (andrei)
* 2004-02-24 added LOAD_AVP_T and AVP_TO_URI_T (bogdan)
*/
#include "route_struct.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dprint.h"
#include "ip_addr.h"
#include "mem/mem.h"
struct expr* mk_exp(int op, struct expr* left, struct expr* right)
{
struct expr * e;
e=(struct expr*)pkg_malloc(sizeof (struct expr));
if (e==0) goto error;
e->type=EXP_T;
e->op=op;
e->l.expr=left;
e->r.expr=right;
return e;
error:
LOG(L_CRIT, "ERROR: mk_exp: memory allocation failure\n");
return 0;
}
struct expr* mk_elem(int op, int subtype, int operand, void* param)
{
struct expr * e;
e=(struct expr*)pkg_malloc(sizeof (struct expr));
if (e==0) goto error;
e->type=ELEM_T;
e->op=op;
e->subtype=subtype;
e->l.operand=operand;
e->r.param=param;
return e;
error:
LOG(L_CRIT, "ERROR: mk_elem: memory allocation failure\n");
return 0;
}
struct action* mk_action(int type, int p1_type, int p2_type,
void* p1, void* p2)
{
struct action* a;
a=(struct action*)pkg_malloc(sizeof(struct action));
if (a==0) goto error;
memset(a,0,sizeof(struct action));
a->type=type;
a->p1_type=p1_type;
a->p2_type=p2_type;
a->p1.string=(char*) p1;
a->p2.string=(char*) p2;
a->next=0;
return a;
error:
LOG(L_CRIT, "ERROR: mk_action: memory allocation failure\n");
return 0;
}
struct action* mk_action3(int type, int p1_type, int p2_type, int p3_type,
void* p1, void* p2, void* p3)
{
struct action* a;
a=mk_action(type, p1_type, p2_type, p1, p2);
if (a){
a->p3_type=p3_type;
a->p3.data=p3;
}
return a;
}
struct action* append_action(struct action* a, struct action* b)
{
struct action *t;
if (b==0) return a;
if (a==0) return b;
for(t=a;t->next;t=t->next);
t->next=b;
return a;
}
void print_expr(struct expr* exp)
{
if (exp==0){
LOG(L_CRIT, "ERROR: print_expr: null expression!\n");
return;
}
if (exp->type==ELEM_T){
switch(exp->l.operand){
case METHOD_O:
DBG("method");
break;
case URI_O:
DBG("uri");
break;
case SRCIP_O:
DBG("srcip");
break;
case SRCPORT_O:
DBG("srcport");
break;
case DSTIP_O:
DBG("dstip");
break;
case NUMBER_O:
break;
case ACTION_O:
print_action((struct action*) exp->r.param);
break;
default:
DBG("UNKNOWN");
}
switch(exp->op){
case EQUAL_OP:
DBG("==");
break;
case MATCH_OP:
DBG("=~");
break;
case NO_OP:
break;
default:
DBG("<UNKNOWN>");
}
switch(exp->subtype){
case NOSUBTYPE:
DBG("N/A");
break;
case STRING_ST:
DBG("\"%s\"", (char*)exp->r.param);
break;
case NET_ST:
print_net((struct net*)exp->r.param);
break;
case IP_ST:
print_ip("", (struct ip_addr*)exp->r.param, "");
break;
case ACTIONS_ST:
print_action((struct action*)exp->r.param);
break;
case NUMBER_ST:
DBG("%d",exp->r.intval);
break;
case MYSELF_ST:
DBG("_myself_");
break;
default:
DBG("type<%d>", exp->subtype);
}
}else if (exp->type==EXP_T){
switch(exp->op){
case AND_OP:
DBG("AND( ");
print_expr(exp->l.expr);
DBG(", ");
print_expr(exp->r.expr);
DBG(" )");
break;
case OR_OP:
DBG("OR( ");
print_expr(exp->l.expr);
DBG(", ");
print_expr(exp->r.expr);
DBG(" )");
break;
case NOT_OP:
DBG("NOT( ");
print_expr(exp->l.expr);
DBG(" )");
break;
default:
DBG("UNKNOWN_EXP ");
}
}else{
DBG("ERROR:print_expr: unknown type\n");
}
}
void print_action(struct action* a)
{
struct action* t;
for(t=a; t!=0;t=t->next){
switch(t->type){
case FORWARD_T:
DBG("forward(");
break;
case FORWARD_TCP_T:
DBG("forward_tcp(");
break;
case FORWARD_UDP_T:
DBG("forward_udp(");
break;
case SEND_T:
DBG("send(");
break;
case SEND_TCP_T:
DBG("send_tcp(");
break;
case DROP_T:
DBG("drop(");
break;
case LOG_T:
DBG("log(");
break;
case ERROR_T:
DBG("error(");
break;
case ROUTE_T:
DBG("route(");
break;
case EXEC_T:
DBG("exec(");
break;
case REVERT_URI_T:
DBG("revert_uri(");
break;
case STRIP_T:
DBG("strip(");
break;
case APPEND_BRANCH_T:
DBG("append_branch(");
break;
case PREFIX_T:
DBG("prefix(");
break;
case LEN_GT_T:
DBG("len_gt(");
break;
case SETFLAG_T:
DBG("setflag(");
break;
case RESETFLAG_T:
DBG("resetflag(");
break;
case ISFLAGSET_T:
DBG("isflagset(");
break;
case SET_HOST_T:
DBG("sethost(");
break;
case SET_HOSTPORT_T:
DBG("sethostport(");
break;
case SET_USER_T:
DBG("setuser(");
break;
case SET_USERPASS_T:
DBG("setuserpass(");
break;
case SET_PORT_T:
DBG("setport(");
break;
case SET_URI_T:
DBG("seturi(");
break;
case IF_T:
DBG("if (");
break;
case MODULE_T:
DBG(" external_module_call(");
break;
case FORCE_RPORT_T:
DBG("force_rport(");
break;
case SET_ADV_ADDR_T:
DBG("set_advertised_address(");
break;
case SET_ADV_PORT_T:
DBG("set_advertised_port(");
break;
case FORCE_TCP_ALIAS_T:
DBG("force_tcp_alias(");
break;
case LOAD_AVP_T:
DBG("load_avp(");
break;
case AVP_TO_URI_T:
DBG("avp_to_attr");
break;
default:
DBG("UNKNOWN(");
}
switch(t->p1_type){
case STRING_ST:
DBG("\"%s\"", t->p1.string);
break;
case NUMBER_ST:
DBG("%lu",t->p1.number);
break;
case IP_ST:
print_ip("", (struct ip_addr*)t->p1.data, "");
break;
case EXPR_ST:
print_expr((struct expr*)t->p1.data);
break;
case ACTIONS_ST:
print_action((struct action*)t->p1.data);
break;
case CMDF_ST:
DBG("f_ptr<%p>",t->p1.data);
break;
default:
DBG("type<%d>", t->p1_type);
}
if (t->type==IF_T) DBG(") {");
switch(t->p2_type){
case NOSUBTYPE:
break;
case STRING_ST:
DBG(", \"%s\"", t->p2.string);
break;
case NUMBER_ST:
DBG(", %lu",t->p2.number);
break;
case EXPR_ST:
print_expr((struct expr*)t->p2.data);
break;
case ACTIONS_ST:
print_action((struct action*)t->p2.data);
break;
default:
DBG(", type<%d>", t->p2_type);
}
if (t->type==IF_T) DBG("} else {");
switch(t->p3_type){
case NOSUBTYPE:
break;
case STRING_ST:
DBG(", \"%s\"", t->p3.string);
break;
case NUMBER_ST:
DBG(", %lu",t->p3.number);
break;
case EXPR_ST:
print_expr((struct expr*)t->p3.data);
break;
case ACTIONS_ST:
print_action((struct action*)t->p3.data);
break;
default:
DBG(", type<%d>", t->p3_type);
}
if (t->type==IF_T) DBG("}; ");
else DBG("); ");
}
}