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kamailio
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kamailio/route_struct.c

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/*
* $Id$
*
* 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)
* 2005-12-19 select framework added SELECT_O and SELECT_ST (mma)
*/
/*!
* \file
* \brief SIP-router core ::
* \ingroup core
* Module: \ref core
*/
#include "route_struct.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "dprint.h"
#include "ip_addr.h"
#include "mem/mem.h"
#include "usr_avp.h"
#include "ut.h" /* ZSW() */
/** joins to cfg file positions into a new one. */
void cfg_pos_join(struct cfg_pos* res,
struct cfg_pos* pos1, struct cfg_pos* pos2)
{
struct cfg_pos ret;
ret=*pos1;
if ((ret.s_line == 0) || (ret.s_line > pos2->s_line)){
ret.s_line=pos2->s_line;
ret.s_col=pos2->s_col;
}else if ((ret.s_line == pos2->s_line) && (ret.s_col > pos2->s_col)){
ret.s_col=pos2->s_col;
}
if ((ret.e_line == 0) || (ret.e_line < pos2->e_line)){
ret.e_line=pos2->e_line;
ret.e_col=pos2->e_col;
}else if ((ret.e_line == pos2->e_line) && (ret.e_col < pos2->e_col)){
ret.e_col=pos2->e_col;
}
*res=ret;
}
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_exp_rve(int op, void* left, void* 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.param=mk_elem(RVEXP_O, RVE_ST, left, 0, 0);
e->r.param=mk_elem(RVEXP_O, RVE_ST, right, 0, 0);
if (e->l.param==0 || e->r.param==0){
if (e->l.param) pkg_free(e->l.param);
if (e->r.param) pkg_free(e->r.param);
pkg_free(e);
goto error;
}
return e;
error:
LOG(L_CRIT, "ERROR: mk_exp_rve: memory allocation failure\n");
return 0;
}
struct expr* mk_elem(int op, expr_l_type ltype, void* lparam,
expr_r_type rtype, void* rparam)
{
struct expr * e;
e=(struct expr*)pkg_malloc(sizeof (struct expr));
if (e==0) goto error;
e->type=ELEM_T;
e->op=op;
e->l_type=ltype;
e->l.param=lparam;
e->r_type = rtype;
e->r.param=rparam;
return e;
error:
LOG(L_CRIT, "ERROR: mk_elem: memory allocation failure\n");
return 0;
}
/** create an action structure (parser use).
* @param type - type of the action
* @param count - count of couples {param_type,val}
* @param ... - count {param_type, val} pairs, where param_type is
* action_param_type.
* @return new action structure on success (pkg_malloc'ed) or 0 on error.
*/
struct action* mk_action(enum action_type type, int count, ...)
{
va_list args;
int i;
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->count = (count > MAX_ACTIONS)?MAX_ACTIONS:count;
va_start(args, count);
for (i=0; i<a->count; i++) {
a->val[i].type = va_arg(args, int);
a->val[i].u.data = va_arg(args, void *);
DBG("ACTION_#%d #%d/%d: %d(%x)/ %p\n", a->type, i, a->count, a->val[i].type, a->val[i].type, a->val[i].u.data);
}
va_end(args);
a->next=0;
return a;
error:
LOG(L_CRIT, "ERROR: mk_action: memory allocation failure\n");
return 0;
}
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_type){
case METHOD_O:
DBG("method");
break;
case URI_O:
DBG("uri");
break;
case FROM_URI_O:
DBG("from_uri");
break;
case TO_URI_O:
DBG("to_uri");
break;
case SRCIP_O:
DBG("srcip");
break;
case SRCPORT_O:
DBG("srcport");
break;
case DSTIP_O:
DBG("dstip");
break;
case DSTPORT_O:
DBG("dstport");
break;
case PROTO_O:
DBG("proto");
break;
case AF_O:
DBG("af");
break;
case MSGLEN_O:
DBG("msglen");
break;
case ACTION_O:
break;
case NUMBER_O:
break;
case AVP_O:
DBG("avp");
break;
case SNDIP_O:
DBG("sndip");
break;
case SNDPORT_O:
DBG("sndport");
break;
case TOIP_O:
DBG("toip");
break;
case TOPORT_O:
DBG("toport");
break;
case SNDPROTO_O:
DBG("sndproto");
break;
case SNDAF_O:
DBG("sndaf");
break;
case RETCODE_O:
DBG("retcode");
break;
case SELECT_O:
DBG("select");
break;
case RVEXP_O:
DBG("rval");
break;
default:
DBG("UNKNOWN");
}
switch(exp->op){
case EQUAL_OP:
DBG("==");
break;
case MATCH_OP:
DBG("=~");
break;
case NO_OP:
break;
case GT_OP:
DBG(">");
break;
case GTE_OP:
DBG(">=");
break;
case LT_OP:
DBG("<");
break;
case LTE_OP:
DBG("<=");
break;
case DIFF_OP:
DBG("!=");
break;
default:
DBG("<UNKNOWN>");
}
switch(exp->r_type){
case NOSUBTYPE:
DBG("N/A");
break;
case STRING_ST:
DBG("\"%s\"", ZSW((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_actions((struct action*)exp->r.param);
break;
case NUMBER_ST:
DBG("%ld",exp->r.numval);
break;
case MYSELF_ST:
DBG("_myself_");
break;
case AVP_ST:
DBG("attr");
break;
case SELECT_ST:
DBG("select");
break;
default:
DBG("type<%d>", exp->r_type);
}
}else if (exp->type==EXP_T){
switch(exp->op){
case LOGAND_OP:
DBG("AND( ");
print_expr(exp->l.expr);
DBG(", ");
print_expr(exp->r.expr);
DBG(" )");
break;
case LOGOR_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* t)
{
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 AVPFLAG_OPER_T:
DBG("avpflagoper(");
break;
case SET_HOST_T:
DBG("sethost(");
break;
case SET_HOSTPORT_T:
DBG("sethostport(");
break;
case SET_HOSTPORTTRANS_T:
DBG("sethostporttrans(");
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 MODULE0_T:
case MODULE1_T:
case MODULE2_T:
case MODULE3_T:
case MODULE4_T:
case MODULE5_T:
case MODULE6_T:
case MODULEX_T:
case MODULE1_RVE_T:
case MODULE2_RVE_T:
case MODULE3_RVE_T:
case MODULE4_RVE_T:
case MODULE5_RVE_T:
case MODULE6_RVE_T:
case MODULEX_RVE_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;
case FORCE_SEND_SOCKET_T:
DBG("force_send_socket");
break;
case ASSIGN_T
: DBG("assign(");
break;
case ADD_T:
DBG("assign_add(");
break;
default:
DBG("UNKNOWN(");
}
switch(t->val[0].type){
case STRING_ST:
DBG("\"%s\"", ZSW(t->val[0].u.string));
break;
case NUMBER_ST:
DBG("%lu",t->val[0].u.number);
break;
case IP_ST:
print_ip("", (struct ip_addr*)t->val[0].u.data, "");
break;
case EXPR_ST:
print_expr((struct expr*)t->val[0].u.data);
break;
case ACTIONS_ST:
print_actions((struct action*)t->val[0].u.data);
break;
case MODEXP_ST:
DBG("f_ptr<%p>",t->val[0].u.data);
break;
case SOCKID_ST:
DBG("%d:%s:%d",
((struct socket_id*)t->val[0].u.data)->proto,
ZSW(((struct socket_id*)t->val[0].u.data)->addr_lst->name),
((struct socket_id*)t->val[0].u.data)->port
);
break;
case AVP_ST:
DBG("avp(%u,%.*s)", t->val[0].u.attr->type, t->val[0].u.attr->name.s.len, ZSW(t->val[0].u.attr->name.s.s));
break;
case SELECT_ST:
DBG("select");
break;
default:
DBG("type<%d>", t->val[0].type);
}
if (t->type==IF_T) DBG(") {");
switch(t->val[1].type){
case NOSUBTYPE:
break;
case STRING_ST:
DBG(", \"%s\"", ZSW(t->val[1].u.string));
break;
case NUMBER_ST:
DBG(", %lu",t->val[1].u.number);
break;
case EXPR_ST:
print_expr((struct expr*)t->val[1].u.data);
break;
case ACTION_ST:
case ACTIONS_ST:
print_actions((struct action*)t->val[1].u.data);
break;
case SOCKID_ST:
DBG("%d:%s:%d",
((struct socket_id*)t->val[0].u.data)->proto,
ZSW(((struct socket_id*)t->val[0].u.data)->addr_lst->name),
((struct socket_id*)t->val[0].u.data)->port
);
break;
case AVP_ST:
DBG(", avp(%u,%.*s)", t->val[1].u.attr->type, t->val[1].u.attr->name.s.len, ZSW(t->val[1].u.attr->name.s.s));
break;
case SELECT_ST:
DBG("select");
break;
default:
DBG(", type<%d>", t->val[1].type);
}
if (t->type==IF_T) DBG("} else {");
switch(t->val[2].type){
case NOSUBTYPE:
break;
case STRING_ST:
DBG(", \"%s\"", ZSW(t->val[2].u.string));
break;
case NUMBER_ST:
DBG(", %lu",t->val[2].u.number);
break;
case EXPR_ST:
print_expr((struct expr*)t->val[2].u.data);
break;
case ACTIONS_ST:
print_actions((struct action*)t->val[2].u.data);
break;
case SOCKID_ST:
DBG("%d:%s:%d",
((struct socket_id*)t->val[0].u.data)->proto,
ZSW(((struct socket_id*)t->val[0].u.data)->addr_lst->name),
((struct socket_id*)t->val[0].u.data)->port
);
break;
default:
DBG(", type<%d>", t->val[2].type);
}
if (t->type==IF_T) DBG("}; ");
else DBG("); ");
}
void print_actions(struct action* a)
{
while(a) {
print_action(a);
a = a->next;
}
}
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