diff options
| author | Shivani Bhardwaj <shivanib134@gmail.com> | 2016-01-05 20:18:26 +0530 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-02-16 19:30:24 +0100 |
| commit | 2db1d5dd8bd3f247142ead25698034a0db36fd4d (patch) | |
| tree | ae5bce3acd9ce59c2d75f48fe3725752233fd47e /extensions | |
| parent | 1b320a1a1dc1fdda78b81c6aaf087fffc839cc37 (diff) | |
extensions: libip6t_REJECT: Add translation to nft
Add translation for target REJECT to nftables.
Examples:
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with icmp6-reject-route
nft add rule ip6 filter FORWARD tcp dport 22 counter reject with icmpv6 type reject-route
$ sudo ip6tables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with tcp-reset
nft add rule ip6 filter FORWARD tcp dport 22 counter reject with tcp reset
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'extensions')
| -rw-r--r-- | extensions/libip6t_REJECT.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/extensions/libip6t_REJECT.c b/extensions/libip6t_REJECT.c index d62f4315..3b8431c0 100644 --- a/extensions/libip6t_REJECT.c +++ b/extensions/libip6t_REJECT.c @@ -17,6 +17,11 @@ struct reject_names { const char *desc; }; +struct reject_names_xlate { + const char *name; + enum ip6t_reject_with with; +}; + enum { O_REJECT_WITH = 0, }; @@ -124,6 +129,35 @@ static void REJECT_save(const void *ip, const struct xt_entry_target *target) printf(" --reject-with %s", reject_table[i].name); } +static const struct reject_names_xlate reject_table_xlate[] = { + {"no-route", IP6T_ICMP6_NO_ROUTE}, + {"admin-prohibited", IP6T_ICMP6_ADM_PROHIBITED}, + {"addr-unreachable", IP6T_ICMP6_ADDR_UNREACH}, + {"port-unreachable", IP6T_ICMP6_PORT_UNREACH}, + {"tcp reset", IP6T_TCP_RESET}, + {"policy-fail", IP6T_ICMP6_POLICY_FAIL}, + {"reject-route", IP6T_ICMP6_REJECT_ROUTE} +}; + +static int REJECT_xlate(const struct xt_entry_target *target, + struct xt_buf *buf, int numeric) +{ + const struct ip6t_reject_info *reject = + (const struct ip6t_reject_info *)target->data; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(reject_table_xlate); ++i) + if (reject_table_xlate[i].with == reject->with) + break; + if (reject->with == IP6T_TCP_RESET) + xt_buf_add(buf, "reject with %s", reject_table_xlate[i].name); + else + xt_buf_add(buf, "reject with icmpv6 type %s", + reject_table_xlate[i].name); + + return 1; +} + static struct xtables_target reject_tg6_reg = { .name = "REJECT", .version = XTABLES_VERSION, @@ -136,6 +170,7 @@ static struct xtables_target reject_tg6_reg = { .save = REJECT_save, .x6_parse = REJECT_parse, .x6_options = REJECT_opts, + .xlate = REJECT_xlate, }; void _init(void) |