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kamailio/modules/avpops/avpops.c

1031 lines
24 KiB

/*
* Copyright (C) 2004-2006 Voice Sistem SRL
*
* This file is part of Kamailio.
*
* Kamailio 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.
*
* Kamailio 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h> /* for regex */
#include <regex.h>
#include "../../mem/shm_mem.h"
#include "../../mem/mem.h"
#include "../../parser/parse_hname2.h"
#include "../../sr_module.h"
#include "../../str.h"
#include "../../dprint.h"
#include "../../error.h"
#include "../../ut.h"
#include "avpops_parse.h"
#include "avpops_impl.h"
#include "avpops_db.h"
MODULE_VERSION
/* modules param variables */
static str db_url = {NULL, 0}; /* database url */
static str db_table = {NULL, 0}; /* table */
static int use_domain = 0; /* if domain should be use for avp matching */
static str uuid_col = str_init("uuid");
static str attribute_col = str_init("attribute");
static str value_col = str_init("value");
static str type_col = str_init("type");
static str username_col = str_init("username");
static str domain_col = str_init("domain");
static str* db_columns[6] = {&uuid_col, &attribute_col, &value_col, &type_col, &username_col, &domain_col};
static int avpops_init(void);
static int avpops_child_init(int rank);
static int fixup_db_load_avp(void** param, int param_no);
static int fixup_db_delete_avp(void** param, int param_no);
static int fixup_db_store_avp(void** param, int param_no);
static int fixup_db_query_avp(void** param, int param_no);
static int fixup_delete_avp(void** param, int param_no);
static int fixup_copy_avp(void** param, int param_no);
static int fixup_pushto_avp(void** param, int param_no);
static int fixup_check_avp(void** param, int param_no);
static int fixup_op_avp(void** param, int param_no);
static int fixup_subst(void** param, int param_no);
static int fixup_is_avp_set(void** param, int param_no);
static int w_print_avps(struct sip_msg* msg, char* foo, char *bar);
static int w_dbload_avps(struct sip_msg* msg, char* source, char* param);
static int w_dbdelete_avps(struct sip_msg* msg, char* source, char* param);
static int w_dbstore_avps(struct sip_msg* msg, char* source, char* param);
static int w_dbquery1_avps(struct sip_msg* msg, char* query, char* param);
static int w_dbquery2_avps(struct sip_msg* msg, char* query, char* dest);
static int w_delete_avps(struct sip_msg* msg, char* param, char *foo);
static int w_copy_avps(struct sip_msg* msg, char* param, char *check);
static int w_pushto_avps(struct sip_msg* msg, char* destination, char *param);
static int w_check_avps(struct sip_msg* msg, char* param, char *check);
static int w_op_avps(struct sip_msg* msg, char* param, char *op);
static int w_subst(struct sip_msg* msg, char* src, char *subst);
static int w_is_avp_set(struct sip_msg* msg, char* param, char *foo);
/*! \brief
* Exported functions
*/
static cmd_export_t cmds[] = {
{"avp_print", (cmd_function)w_print_avps, 0, 0, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_db_load", (cmd_function)w_dbload_avps, 2, fixup_db_load_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_db_delete", (cmd_function)w_dbdelete_avps, 2, fixup_db_delete_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_db_store", (cmd_function)w_dbstore_avps, 2, fixup_db_store_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_db_query", (cmd_function)w_dbquery1_avps, 1, fixup_db_query_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_db_query", (cmd_function)w_dbquery2_avps, 2, fixup_db_query_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_delete", (cmd_function)w_delete_avps, 1, fixup_delete_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_copy", (cmd_function)w_copy_avps, 2, fixup_copy_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_pushto", (cmd_function)w_pushto_avps, 2, fixup_pushto_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_check", (cmd_function)w_check_avps, 2, fixup_check_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_op", (cmd_function)w_op_avps, 2, fixup_op_avp, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"avp_subst", (cmd_function)w_subst, 2, fixup_subst, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{"is_avp_set", (cmd_function)w_is_avp_set, 1, fixup_is_avp_set, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONREPLY_ROUTE|LOCAL_ROUTE},
{0, 0, 0, 0, 0, 0}
};
/*! \brief
* Exported parameters
*/
static param_export_t params[] = {
{"db_url", PARAM_STR, &db_url },
{"avp_table", PARAM_STR, &db_table },
{"use_domain", INT_PARAM, &use_domain },
{"uuid_column", PARAM_STR, &uuid_col },
{"attribute_column", PARAM_STR, &attribute_col },
{"value_column", PARAM_STR, &value_col },
{"type_column", PARAM_STR, &type_col },
{"username_column", PARAM_STR, &username_col },
{"domain_column", PARAM_STR, &domain_col },
{"db_scheme", PARAM_STRING|USE_FUNC_PARAM, (void*)avp_add_db_scheme },
{0, 0, 0}
};
struct module_exports exports = {
"avpops",
DEFAULT_DLFLAGS, /* dlopen flags */
cmds, /* Exported functions */
params, /* Exported parameters */
0, /* exported statistics */
0, /* exported MI functions */
0, /* exported pseudo-variables */
0, /* extra processes */
avpops_init,/* Module initialization function */
0,
0,
(child_init_function) avpops_child_init /* per-child init function */
};
static int avpops_init(void)
{
/* if DB_URL defined -> bind to a DB module */
if (db_url.s && db_url.len>0)
{
/* check AVP_TABLE param */
if (!db_table.s || db_table.len<=0)
{
LM_CRIT("\"AVP_DB\" present but \"AVP_TABLE\" found empty\n");
goto error;
}
/* bind to the DB module */
if (avpops_db_bind(&db_url)<0)
goto error;
}
init_store_avps(db_columns);
return 0;
error:
return -1;
}
static int avpops_child_init(int rank)
{
/* init DB only if enabled */
if (db_url.s==0)
return 0;
/* skip main process and TCP manager process */
if (rank==PROC_INIT || rank==PROC_MAIN || rank==PROC_TCP_MAIN)
return 0;
/* init DB connection */
return avpops_db_init(&db_url, &db_table, db_columns);
}
static int fixup_db_avp(void** param, int param_no, int allow_scheme)
{
struct fis_param *sp;
struct db_param *dbp;
int flags;
str s;
char *p;
flags=0;
if (db_url.s==0)
{
LM_ERR("you have to configure a db_url for using avp_db_xxx functions\n");
return E_UNSPEC;
}
s.s = (char*)*param;
if (param_no==1)
{
/* prepare the fis_param structure */
sp = (struct fis_param*)pkg_malloc(sizeof(struct fis_param));
if (sp==0) {
LM_ERR("no more pkg mem!\n");
return E_OUT_OF_MEM;
}
memset( sp, 0, sizeof(struct fis_param));
if ( (p=strchr(s.s,'/'))!=0)
{
*(p++) = 0;
/* check for extra flags/params */
if (!strcasecmp("domain",p)) {
flags|=AVPOPS_FLAG_DOMAIN0;
} else if (!strcasecmp("username",p)) {
flags|=AVPOPS_FLAG_USER0;
} else if (!strcasecmp("uri",p)) {
flags|=AVPOPS_FLAG_URI0;
} else if (!strcasecmp("uuid",p)) {
flags|=AVPOPS_FLAG_UUID0;
} else {
LM_ERR("unknow flag "
"<%s>\n",p);
return E_UNSPEC;
}
}
if (*s.s!='$')
{
/* is a constant string -> use it as uuid*/
sp->opd = ((flags==0)?AVPOPS_FLAG_UUID0:flags)|AVPOPS_VAL_STR;
sp->u.s.s = (char*)pkg_malloc(strlen(s.s)+1);
if (sp->u.s.s==0) {
LM_ERR("no more pkg mem!!\n");
return E_OUT_OF_MEM;
}
sp->u.s.len = strlen(s.s);
strcpy(sp->u.s.s, s.s);
} else {
/* is a variable $xxxxx */
s.len = strlen(s.s);
sp->u.sval = pv_cache_get(&s);
if (sp->u.sval==0 || sp->u.sval->type==PVT_NULL || sp->u.sval->type==PVT_EMPTY)
{
LM_ERR("bad param 1; "
"expected : $pseudo-variable or int/str value\n");
return E_UNSPEC;
}
if(sp->u.sval->type==PVT_RURI || sp->u.sval->type==PVT_FROM
|| sp->u.sval->type==PVT_TO || sp->u.sval->type==PVT_OURI)
{
sp->opd = ((flags==0)?AVPOPS_FLAG_URI0:flags)|AVPOPS_VAL_PVAR;
} else {
sp->opd = ((flags==0)?AVPOPS_FLAG_UUID0:flags)|AVPOPS_VAL_PVAR;
}
}
*param=(void*)sp;
} else if (param_no==2) {
/* compose the db_param structure */
dbp = (struct db_param*)pkg_malloc(sizeof(struct db_param));
if (dbp==0)
{
LM_ERR("no more pkg mem!!!\n");
return E_OUT_OF_MEM;
}
memset( dbp, 0, sizeof(struct db_param));
if ( parse_avp_db( s.s, dbp, allow_scheme)!=0 )
{
LM_ERR("parse failed\n");
return E_UNSPEC;
}
*param=(void*)dbp;
}
return 0;
}
static int fixup_db_load_avp(void** param, int param_no)
{
return fixup_db_avp( param, param_no, 1/*allow scheme*/);
}
static int fixup_db_delete_avp(void** param, int param_no)
{
return fixup_db_avp( param, param_no, 0/*no scheme*/);
}
static int fixup_db_store_avp(void** param, int param_no)
{
return fixup_db_avp( param, param_no, 0/*no scheme*/);
}
static int fixup_db_query_avp(void** param, int param_no)
{
pv_elem_t *model = NULL;
pvname_list_t *anlist = NULL;
str s;
if (db_url.s==0)
{
LM_ERR("you have to configure db_url for using avp_db_query function\n");
return E_UNSPEC;
}
s.s = (char*)(*param);
if (param_no==1)
{
if(s.s==NULL)
{
LM_ERR("null format in P%d\n",
param_no);
return E_UNSPEC;
}
s.len = strlen(s.s);
if(pv_parse_format(&s, &model)<0)
{
LM_ERR("wrong format[%s]\n", s.s);
return E_UNSPEC;
}
*param = (void*)model;
return 0;
} else if(param_no==2) {
if(s.s==NULL)
{
LM_ERR("null format in P%d\n", param_no);
return E_UNSPEC;
}
s.len = strlen(s.s);
anlist = parse_pvname_list(&s, PVT_AVP);
if(anlist==NULL)
{
LM_ERR("bad format in P%d [%s]\n", param_no, s.s);
return E_UNSPEC;
}
*param = (void*)anlist;
return 0;
}
return 0;
}
static int fixup_delete_avp(void** param, int param_no)
{
struct fis_param *ap=NULL;
char *p;
char *s;
unsigned int flags;
str s0;
s = (char*)(*param);
if (param_no==1) {
/* attribute name / alias */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
if(*s=='$')
{
/* is variable */
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get"
" pseudo-variable in param \n");
return E_UNSPEC;
}
if (ap->u.sval->type!=PVT_AVP)
{
LM_ERR("bad param; expected : $avp(name)\n");
return E_UNSPEC;
}
ap->opd|=AVPOPS_VAL_PVAR;
ap->type = AVPOPS_VAL_PVAR;
} else {
if(strlen(s)<1)
{
LM_ERR("bad param - expected : $avp(name), *, s or i value\n");
return E_UNSPEC;
}
ap = (struct fis_param*)pkg_malloc(sizeof(struct fis_param));
if (ap==0)
{
LM_ERR(" no more pkg mem\n");
return E_OUT_OF_MEM;
}
memset(ap, 0, sizeof(struct fis_param));
ap->opd|=AVPOPS_VAL_NONE;
switch(*s) {
case 's': case 'S':
ap->opd = AVPOPS_VAL_NONE|AVPOPS_VAL_STR;
break;
case 'i': case 'I':
ap->opd = AVPOPS_VAL_NONE|AVPOPS_VAL_INT;
break;
case '*': case 'a': case 'A':
ap->opd = AVPOPS_VAL_NONE;
break;
default:
LM_ERR(" bad param - expected : *, s or i AVP flag\n");
pkg_free(ap);
return E_UNSPEC;
}
/* flags */
flags = 0;
if(*(s+1)!='\0')
{
s0.s = s+1;
s0.len = strlen(s0.s);
if(str2int(&s0, &flags)!=0)
{
LM_ERR("bad avp flags\n");
pkg_free(ap);
return E_UNSPEC;
}
}
ap->type = AVPOPS_VAL_INT;
ap->u.n = flags<<8;
}
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p)
{
case 'g':
case 'G':
ap->ops|=AVPOPS_FLAG_ALL;
break;
default:
LM_ERR(" bad flag <%c>\n",*p);
if(ap!=NULL)
pkg_free(ap);
return E_UNSPEC;
}
}
/* force some flags: if no avp name is given, force "all" flag */
if (ap->opd&AVPOPS_VAL_NONE)
ap->ops |= AVPOPS_FLAG_ALL;
*param=(void*)ap;
}
return 0;
}
static int fixup_copy_avp(void** param, int param_no)
{
struct fis_param *ap;
char *s;
char *p;
s = (char*)*param;
ap = 0;
p = 0;
if (param_no==2)
{
/* avp / flags */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
}
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in P%d\n", param_no);
return E_OUT_OF_MEM;
}
/* attr name is mandatory */
if (ap->u.sval->type!=PVT_AVP)
{
LM_ERR("you must specify only AVP as parameter\n");
return E_UNSPEC;
}
if (param_no==2)
{
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'g':
case 'G':
ap->ops|=AVPOPS_FLAG_ALL;
break;
case 'd':
case 'D':
ap->ops|=AVPOPS_FLAG_DELETE;
break;
case 'n':
case 'N':
ap->ops|=AVPOPS_FLAG_CASTN;
break;
case 's':
case 'S':
ap->ops|=AVPOPS_FLAG_CASTS;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
return E_UNSPEC;
}
}
}
*param=(void*)ap;
return 0;
}
static int fixup_pushto_avp(void** param, int param_no)
{
struct fis_param *ap;
char *s;
char *p;
s = (char*)*param;
ap = 0;
if (param_no==1)
{
if ( *s!='$')
{
LM_ERR("bad param 1; expected : $ru $du ...\n");
return E_UNSPEC;
}
/* compose the param structure */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 1\n");
return E_OUT_OF_MEM;
}
switch(ap->u.sval->type) {
case PVT_RURI:
ap->opd = AVPOPS_VAL_NONE|AVPOPS_USE_RURI;
if ( p && !(
(!strcasecmp("username",p)
&& (ap->opd|=AVPOPS_FLAG_USER0)) ||
(!strcasecmp("domain",p)
&& (ap->opd|=AVPOPS_FLAG_DOMAIN0)) ))
{
LM_ERR("unknown ruri flag \"%s\"!\n",p);
return E_UNSPEC;
}
break;
case PVT_DSTURI:
if ( p!=0 )
{
LM_ERR("unknown duri flag \"%s\"!\n",p);
return E_UNSPEC;
}
ap->opd = AVPOPS_VAL_NONE|AVPOPS_USE_DURI;
break;
case PVT_HDR:
/* what's the hdr destination ? request or reply? */
LM_ERR("push to header is obsoleted - use append_hf() "
"or append_to_reply() from textops module!\n");
return E_UNSPEC;
break;
case PVT_BRANCH:
if ( p!=0 )
{
LM_ERR("unknown branch flag \"%s\"!\n",p);
return E_UNSPEC;
}
ap->opd = AVPOPS_VAL_NONE|AVPOPS_USE_BRANCH;
break;
default:
LM_ERR("unsupported destination \"%s\"; "
"expected $ru,$du,$br\n",s);
return E_UNSPEC;
}
} else if (param_no==2) {
/* attribute name*/
if ( *s!='$')
{
LM_ERR("bad param 2; expected: $pseudo-variable ...\n");
return E_UNSPEC;
}
/* compose the param structure */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 2\n");
return E_OUT_OF_MEM;
}
if (ap->u.sval->type==PVT_NULL)
{
LM_ERR("bad param 2; expected : $pseudo-variable ...\n");
pkg_free(ap);
return E_UNSPEC;
}
ap->opd |= AVPOPS_VAL_PVAR;
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'g':
case 'G':
ap->ops|=AVPOPS_FLAG_ALL;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
pkg_free(ap);
return E_UNSPEC;
}
}
}
*param=(void*)ap;
return 0;
}
static int fixup_check_avp(void** param, int param_no)
{
struct fis_param *ap;
regex_t* re;
char *s;
s = (char*)*param;
ap = 0;
if (param_no==1)
{
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 1\n");
return E_OUT_OF_MEM;
}
/* attr name is mandatory */
if (ap->u.sval->type==PVT_NULL)
{
LM_ERR("null pseudo-variable in param 1\n");
return E_UNSPEC;
}
} else if (param_no==2) {
if ( (ap=parse_check_value(s))==0 )
{
LM_ERR("failed to parse checked value \n");
return E_UNSPEC;
}
/* if REGEXP op -> compile the expresion */
if (ap->ops&AVPOPS_OP_RE)
{
if ( (ap->opd&AVPOPS_VAL_STR)!=0 )
{
re = (regex_t*) pkg_malloc(sizeof(regex_t));
if (re==0)
{
LM_ERR("no more pkg mem\n");
return E_OUT_OF_MEM;
}
LM_DBG("compiling regexp <%.*s>\n", ap->u.s.len, ap->u.s.s);
if (regcomp(re, ap->u.s.s,REG_EXTENDED|REG_ICASE|REG_NEWLINE))
{
pkg_free(re);
LM_ERR("bad re <%.*s>\n", ap->u.s.len, ap->u.s.s);
return E_BAD_RE;
}
ap->u.s.s = (char*)re;
}
} else if (ap->ops&AVPOPS_OP_FM) {
if ( !( ap->opd&AVPOPS_VAL_PVAR ||
(!(ap->opd&AVPOPS_VAL_PVAR) && ap->opd&AVPOPS_VAL_STR) ) )
{
LM_ERR("fast_match operation requires string value or "
"avp name/alias (%d/%d)\n", ap->opd, ap->ops);
return E_UNSPEC;
}
}
}
*param=(void*)ap;
return 0;
}
static int fixup_subst(void** param, int param_no)
{
struct subst_expr* se;
str subst;
struct fis_param *ap;
struct fis_param **av;
char *s;
char *p;
if (param_no==1) {
s = (char*)*param;
ap = 0;
p = 0;
av = (struct fis_param**)pkg_malloc(2*sizeof(struct fis_param*));
if(av==NULL)
{
LM_ERR("no more pkg memory\n");
return E_UNSPEC;
}
memset(av, 0, 2*sizeof(struct fis_param*));
/* avp src / avp dst /flags */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 2 [%s]\n", s);
return E_OUT_OF_MEM;
}
if (ap->u.sval->type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>\n", (char*)*param);
pkg_free(av);
return E_UNSPEC;
}
/* attr name is mandatory */
if (ap->opd&AVPOPS_VAL_NONE)
{
LM_ERR("you must specify a name for the AVP\n");
return E_UNSPEC;
}
av[0] = ap;
if(p==0 || *p=='\0')
{
*param=(void*)av;
return 0;
}
/* dst || flags */
s = p;
if(*s==PV_MARKER)
{
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
if(p==0 || (p!=0 && p-s>1))
{
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 2 [%s]\n",s);
return E_OUT_OF_MEM;
}
if (ap->u.sval->type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>!\n", s);
pkg_free(av);
return E_UNSPEC;
}
/* attr name is mandatory */
if (ap->opd&AVPOPS_VAL_NONE)
{
LM_ERR("you must specify a name for the AVP!\n");
return E_UNSPEC;
}
av[1] = ap;
}
if(p==0 || *p=='\0')
{
*param=(void*)av;
return 0;
}
}
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'g':
case 'G':
av[0]->ops|=AVPOPS_FLAG_ALL;
break;
case 'd':
case 'D':
av[0]->ops|=AVPOPS_FLAG_DELETE;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
return E_UNSPEC;
}
}
*param=(void*)av;
} else if (param_no==2) {
LM_DBG("%s fixing %s\n", exports.name, (char*)(*param));
subst.s=*param;
subst.len=strlen(*param);
se=subst_parser(&subst);
if (se==0){
LM_ERR("%s: bad subst re %s\n",exports.name, (char*)*param);
return E_BAD_RE;
}
/* don't free string -- needed for specifiers */
/* pkg_free(*param); */
/* replace it with the compiled subst. re */
*param=se;
}
return 0;
}
static int fixup_op_avp(void** param, int param_no)
{
struct fis_param *ap;
struct fis_param **av;
char *s;
char *p;
s = (char*)*param;
ap = 0;
if (param_no==1)
{
av = (struct fis_param**)pkg_malloc(2*sizeof(struct fis_param*));
if(av==NULL)
{
LM_ERR("no more pkg memory\n");
return E_UNSPEC;
}
memset(av, 0, 2*sizeof(struct fis_param*));
/* avp src / avp dst */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
av[0] = avpops_parse_pvar(s);
if (av[0]==0)
{
LM_ERR("unable to get pseudo-variable in param 1\n");
return E_OUT_OF_MEM;
}
if (av[0]->u.sval->type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>\n", (char*)*param);
pkg_free(av);
return E_UNSPEC;
}
if(p==0 || *p=='\0')
{
*param=(void*)av;
return 0;
}
s = p;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 1 (2)\n");
return E_OUT_OF_MEM;
}
if (ap->u.sval->type!=PVT_AVP)
{
LM_ERR("bad attribute name/alias <%s>!\n", s);
pkg_free(av);
return E_UNSPEC;
}
av[1] = ap;
*param=(void*)av;
return 0;
} else if (param_no==2) {
if ( (ap=parse_op_value(s))==0 )
{
LM_ERR("failed to parse the value \n");
return E_UNSPEC;
}
/* only integer values or avps */
if ( (ap->opd&AVPOPS_VAL_STR)!=0 && (ap->opd&AVPOPS_VAL_PVAR)==0)
{
LM_ERR("operations requires integer values\n");
return E_UNSPEC;
}
*param=(void*)ap;
return 0;
}
return -1;
}
static int fixup_is_avp_set(void** param, int param_no)
{
struct fis_param *ap;
char *p;
char *s;
s = (char*)(*param);
if (param_no==1) {
/* attribute name | alias / flags */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param\n");
return E_OUT_OF_MEM;
}
if (ap->u.sval->type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>\n", (char*)*param);
return E_UNSPEC;
}
if(p==0 || *p=='\0')
ap->ops|=AVPOPS_FLAG_ALL;
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'e':
case 'E':
ap->ops|=AVPOPS_FLAG_EMPTY;
break;
case 'n':
case 'N':
if(ap->ops&AVPOPS_FLAG_CASTS)
{
LM_ERR("invalid flag combination <%c> and 's|S'\n",*p);
return E_UNSPEC;
}
ap->ops|=AVPOPS_FLAG_CASTN;
break;
case 's':
case 'S':
if(ap->ops&AVPOPS_FLAG_CASTN)
{
LM_ERR("invalid flag combination <%c> and 'n|N'\n",*p);
return E_UNSPEC;
}
ap->ops|=AVPOPS_FLAG_CASTS;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
return E_UNSPEC;
}
}
*param=(void*)ap;
}
return 0;
}
static int w_dbload_avps(struct sip_msg* msg, char* source, char* param)
{
return ops_dbload_avps ( msg, (struct fis_param*)source,
(struct db_param*)param, use_domain);
}
static int w_dbdelete_avps(struct sip_msg* msg, char* source, char* param)
{
return ops_dbdelete_avps ( msg, (struct fis_param*)source,
(struct db_param*)param, use_domain);
}
static int w_dbstore_avps(struct sip_msg* msg, char* source, char* param)
{
return ops_dbstore_avps ( msg, (struct fis_param*)source,
(struct db_param*)param, use_domain);
}
static int w_dbquery1_avps(struct sip_msg* msg, char* query, char* param)
{
return ops_dbquery_avps ( msg, (pv_elem_t*)query, 0);
}
static int w_dbquery2_avps(struct sip_msg* msg, char* query, char* dest)
{
return ops_dbquery_avps ( msg, (pv_elem_t*)query, (pvname_list_t*)dest);
}
static int w_delete_avps(struct sip_msg* msg, char* param, char* foo)
{
return ops_delete_avp ( msg, (struct fis_param*)param);
}
static int w_copy_avps(struct sip_msg* msg, char* name1, char *name2)
{
return ops_copy_avp ( msg, (struct fis_param*)name1,
(struct fis_param*)name2);
}
static int w_pushto_avps(struct sip_msg* msg, char* destination, char *param)
{
return ops_pushto_avp ( msg, (struct fis_param*)destination,
(struct fis_param*)param);
}
static int w_check_avps(struct sip_msg* msg, char* param, char *check)
{
return ops_check_avp ( msg, (struct fis_param*)param,
(struct fis_param*)check);
}
static int w_op_avps(struct sip_msg* msg, char* param, char *op)
{
return ops_op_avp ( msg, (struct fis_param**)param,
(struct fis_param*)op);
}
static int w_subst(struct sip_msg* msg, char* src, char *subst)
{
return ops_subst(msg, (struct fis_param**)src, (struct subst_expr*)subst);
}
static int w_is_avp_set(struct sip_msg* msg, char* param, char *op)
{
return ops_is_avp_set(msg, (struct fis_param*)param);
}
static int w_print_avps(struct sip_msg* msg, char* foo, char *bar)
{
return ops_print_avp();
}