/* $Id: fw_rule.c 57 2012-11-02 16:39:39Z gomor $ */
/*
* Copyright (c) 2008-2012 Patrice <GomoR> Auffret
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
SV *
fw_c2sv(FwRule *rule)
{
HV *out = newHV();
SV *out_ref = newRV_noinc((SV *)out);
AV *sport, *dport;
char *src, *dst;
int i;
hv_store(out, "fw_device", 9, newSVpv(rule->fw_device, 0), 0);
hv_store(out, "fw_op", 5, newSViv(rule->fw_op), 0);
hv_store(out, "fw_dir", 6, newSViv(rule->fw_dir), 0);
hv_store(out, "fw_proto", 8, newSViv(rule->fw_proto), 0);
src = addr_ntoa(&(rule->fw_src));
if (src == NULL) {
hv_store(out, "fw_src", 6, &PL_sv_undef, 0);
}
else {
hv_store(out, "fw_src", 6, newSVpv(src, 0), 0);
}
dst = addr_ntoa(&(rule->fw_dst));
if (dst == NULL) {
hv_store(out, "fw_dst", 6, &PL_sv_undef, 0);
}
else {
hv_store(out, "fw_dst", 6, newSVpv(dst, 0), 0);
}
sport = newAV();
dport = newAV();
for (i=0; i<2; i++) {
av_push(sport, newSViv(rule->fw_sport[i]));
av_push(dport, newSViv(rule->fw_dport[i]));
}
hv_store(out, "fw_sport", 8, newRV_noinc((SV *)sport), 0);
hv_store(out, "fw_dport", 8, newRV_noinc((SV *)dport), 0);
return out_ref;
}
static FwRule *
fw_sv2c(SV *h, FwRule *ref)
{
if (ref && h && SvROK(h)) {
HV *hv = (HV *)SvRV(h);
memset(ref, 0, sizeof(FwRule));
if (hv_exists(hv, "fw_device", 9)) {
SV **r = hv_fetch(hv, "fw_device", 9, 0);
if (SvOK(*r)) {
memcpy(&(ref->fw_device), SvPV(*r, PL_na), sizeof(ref->fw_device));
}
}
if (hv_exists(hv, "fw_op", 5)) {
SV **r = hv_fetch(hv, "fw_op", 5, 0);
ref->fw_op = (SvOK(*r) ? SvIV(*r) : 0);
}
if (hv_exists(hv, "fw_dir", 6)) {
SV **r = hv_fetch(hv, "fw_dir", 6, 0);
ref->fw_dir = (SvOK(*r) ? SvIV(*r) : 0);
}
if (hv_exists(hv, "fw_proto", 8)) {
SV **r = hv_fetch(hv, "fw_proto", 8, 0);
ref->fw_proto = (SvOK(*r) ? SvIV(*r) : 0);
}
if (hv_exists(hv, "fw_src", 6)) {
SV **r = hv_fetch(hv, "fw_src", 6, 0);
if (SvOK(*r)) {
struct addr a;
if (addr_aton(SvPV(*r, PL_na), &a) == 0) {
memcpy(&(ref->fw_src), &a, sizeof(struct addr));
}
}
}
if (hv_exists(hv, "fw_dst", 6)) {
SV **r = hv_fetch(hv, "fw_dst", 6, 0);
if (SvOK(*r)) {
struct addr a;
if (addr_aton(SvPV(*r, PL_na), &a) == 0) {
memcpy(&(ref->fw_dst), &a, sizeof(struct addr));
}
}
}
if (hv_exists(hv, "fw_sport", 8)) {
SV **r = hv_fetch(hv, "fw_sport", 8, 0);
if (SvOK(*r)) {
AV *a = (AV *)SvRV(*r);
SV *p1 = av_shift(a);
SV *p2 = av_shift(a);
ref->fw_sport[0] = (SvOK(p1) ? SvIV(p1) : 0);
ref->fw_sport[1] = (SvOK(p2) ? SvIV(p2) : 0);
}
}
if (hv_exists(hv, "fw_dport", 8)) {
SV **r = hv_fetch(hv, "fw_dport", 8, 0);
if (SvOK(*r)) {
AV *a = (AV *)SvRV(*r);
SV *p1 = av_shift(a);
SV *p2 = av_shift(a);
ref->fw_dport[0] = (SvOK(p1) ? SvIV(p1) : 0);
ref->fw_dport[1] = (SvOK(p2) ? SvIV(p2) : 0);
}
}
}
else {
ref = NULL;
}
return ref;
}