#define BUILD_TARGET
#define MODULE_DATATYPE struct ipt_mark_target_info
#define MODULE_NAME "MARK"
#define __USE_GNU
#include "../module_iface.h"
#include <string.h>
#include <stdio.h>
#include <linux/netfilter_ipv4/ipt_MARK.h>
static int parse_field(char *field, SV *value, void *myinfo,
unsigned int *nfcache, struct ipt_entry *entry, int *flags) {
MODULE_DATATYPE *info = (void *)(*(MODULE_ENTRYTYPE **)myinfo)->data;
if(strcmp(field, "set-mark"))
return(FALSE);
*flags = 1;
if(SvIOK(value))
info->mark = SvIV(value);
else if(SvPOK(value)) {
char *markstr, *extent, *temp;
int num;
STRLEN len;
temp = SvPV(value, len);
markstr = malloc(len + 1);
strncpy(markstr, temp, len);
markstr[len] = '\0';
num = strtoul(markstr, &extent, 0);
if(extent < markstr + strlen(markstr)) {
SET_ERRSTR("%s: Unable to parse", field);
free(markstr);
return(FALSE);
}
free(markstr);
info->mark = num;
}
else {
SET_ERRSTR("%s: Must have a string or integer arg", field);
return(FALSE);
}
return(TRUE);
}
static void get_fields(HV *ent_hash, void *myinfo, struct ipt_entry *entry) {
MODULE_DATATYPE *info = (void *)((MODULE_ENTRYTYPE *)myinfo)->data;
hv_store(ent_hash, "set-mark", 8, newSViv(info->mark), 0);
}
int final_check(void *myinfo, int flags) {
if(!flags) {
SET_ERRSTR("MARK target requires 'set-mark'");
return(FALSE);
}
return(TRUE);
}
static ModuleDef _module = {
.type = MODULE_TYPE,
.name = MODULE_NAME,
.size = IPT_ALIGN(sizeof(MODULE_DATATYPE)),
.size_uspace = IPT_ALIGN(sizeof(MODULE_DATATYPE)),
.parse_field = parse_field,
.get_fields = get_fields,
.final_check = final_check,
};
ModuleDef *init(void) {
return(&_module);
}
/* vim: ts=4
*/