From 467fa9fe70f08342a50b859ddd431c848a956679 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 17 Apr 2009 18:11:09 +0200 Subject: SNAT/DNAT: add support for persistent multi-range NAT mappings Add support for persistent mappings (2.6.29-rc2+) as replacement for the removed SAME target. Signed-off-by: Patrick McHardy --- extensions/libipt_DNAT.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'extensions/libipt_DNAT.c') diff --git a/extensions/libipt_DNAT.c b/extensions/libipt_DNAT.c index b5f8028c..dc79b446 100644 --- a/extensions/libipt_DNAT.c +++ b/extensions/libipt_DNAT.c @@ -27,12 +27,13 @@ static void DNAT_help(void) "DNAT target options:\n" " --to-destination [-][:port-port]\n" " Address to map destination to.\n" -"[--random]\n"); +"[--random] [--persistent]\n"); } static const struct option DNAT_opts[] = { { "to-destination", 1, NULL, '1' }, { "random", 0, NULL, '2' }, + { "persistent", 0, NULL, '3' }, { .name = NULL } }; @@ -178,6 +179,11 @@ static int DNAT_parse(int c, char **argv, int invert, unsigned int *flags, } else *flags |= IPT_DNAT_OPT_RANDOM; return 1; + + case '3': + info->mr.range[0].flags |= IP_NAT_RANGE_PERSISTENT; + return 1; + default: return 0; } @@ -222,6 +228,8 @@ static void DNAT_print(const void *ip, const struct xt_entry_target *target, printf(" "); if (info->mr.range[i].flags & IP_NAT_RANGE_PROTO_RANDOM) printf("random "); + if (info->mr.range[i].flags & IP_NAT_RANGE_PERSISTENT) + printf("persistent "); } } @@ -236,6 +244,8 @@ static void DNAT_save(const void *ip, const struct xt_entry_target *target) printf(" "); if (info->mr.range[i].flags & IP_NAT_RANGE_PROTO_RANDOM) printf("--random "); + if (info->mr.range[i].flags & IP_NAT_RANGE_PERSISTENT) + printf("--persistent "); } } -- cgit v1.2.3