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/*
* NATv6: IPv6-to-IPv6 Network Prefix Translation as
* proposed in RFC 6296.
* Based on MAP66 (c) 2010 sven-ola()gmx.de
* (c) 2011 mschiffer()universe-factory.net "I'm the one to blame for any problems with this version ;P"
*/
#include "libip6t_NPTV6.h"
static void SNPTV6_help(void)
{
printf(
"SNPTV6 target options\n"
" --to-source ipv6addr/prefixlength (Prefix to map IPv6 source address to)\n");
NPTV6_help_note();
}
static int SNPTV6_parse(int c, char **argv, int invert, unsigned int *flags, const void *entry, struct xt_entry_target **target)
{
struct ip6t_nptv6_info* info = (struct ip6t_nptv6_info*)(*target)->data;
switch(c) {
case 0:
if (!optarg) {
xtables_error(PARAMETER_PROBLEM, "--to-source: No prefix given");
}
if (invert) {
xtables_error(PARAMETER_PROBLEM, "Unexpected `!' after --to-source");
}
NPTV6_parse_to(optarg, info);
return 1;
}
return 0;
}
static void SNPTV6_save(const void *ip, const struct xt_entry_target *target)
{
const struct ip6t_nptv6_info* info = (struct ip6t_nptv6_info*)target->data;
printf(" --to-source %s/%d ", xtables_ip6addr_to_numeric(&info->nptv6_prefix), info->nptv6_prefix_len);
}
static const struct option SNPTV6_opts[] = {
{.name = "to-source", .has_arg = required_argument, .flag = NULL, .val = 0},
{.name = NULL},
};
static struct xtables_target SNPTV6_tg6_reg = {
.name = "SNPTV6",
.version = XTABLES_VERSION,
.family = NFPROTO_IPV6,
.size = XT_ALIGN(sizeof(struct ip6t_nptv6_info)),
.userspacesize = XT_ALIGN(sizeof(struct ip6t_nptv6_info)),
.help = SNPTV6_help,
.parse = SNPTV6_parse,
.print = NPTV6_print,
.save = SNPTV6_save,
.extra_opts = SNPTV6_opts,
};
void _init(void)
{
xtables_register_target(&SNPTV6_tg6_reg);
}
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