diff options
| author | Shivani Bhardwaj <shivanib134@gmail.com> | 2016-01-13 00:56:44 +0530 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-02-16 19:30:25 +0100 |
| commit | 7dea33bbeaf8a9ea69c7a130c0d622e3178c3744 (patch) | |
| tree | 5feb9799e3cc850b3194f9f0f5f9ff256f88a283 | |
| parent | 95df9884027eadbd1479cefd49f290194abbb8d2 (diff) | |
extensions: libip6t_REDIRECT: Add translation to nft
Add translation for REDIRECT target to nftables.
Examples:
$ sudo ip6tables-translate -t nat -A prerouting -p tcp --dport 80 -j REDIRECT --to-ports 8080
nft add rule ip6 nat prerouting tcp dport 80 counter redirect to 8080
$ sudo ip6tables-translate -t nat -A prerouting -p tcp --dport 80 -j REDIRECT --to-ports 8080 --random
nft add rule ip6 nat prerouting tcp dport 80 counter redirect to 8080 random
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | extensions/libip6t_REDIRECT.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/extensions/libip6t_REDIRECT.c b/extensions/libip6t_REDIRECT.c index 1724aa67..d907d94c 100644 --- a/extensions/libip6t_REDIRECT.c +++ b/extensions/libip6t_REDIRECT.c @@ -132,6 +132,24 @@ static void REDIRECT_save(const void *ip, const struct xt_entry_target *target) } } +static int REDIRECT_xlate(const struct xt_entry_target *target, + struct xt_buf *buf, int numeric) +{ + const struct nf_nat_range *range = (const void *)target->data; + + if (range->flags & NF_NAT_RANGE_PROTO_SPECIFIED) { + xt_buf_add(buf, "redirect to %hu", + ntohs(range->min_proto.tcp.port)); + if (range->max_proto.tcp.port != range->min_proto.tcp.port) + xt_buf_add(buf, "-%hu ", + ntohs(range->max_proto.tcp.port)); + if (range->flags & NF_NAT_RANGE_PROTO_RANDOM) + xt_buf_add(buf, " random "); + } + + return 1; +} + static struct xtables_target redirect_tg_reg = { .name = "REDIRECT", .version = XTABLES_VERSION, @@ -143,6 +161,7 @@ static struct xtables_target redirect_tg_reg = { .print = REDIRECT_print, .save = REDIRECT_save, .x6_options = REDIRECT_opts, + .xlate = REDIRECT_xlate, }; void _init(void) |