diff options
| author | Gargi Sharma <gs051095@gmail.com> | 2017-03-29 00:20:18 +0530 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-04-07 00:46:40 +0200 |
| commit | b669e18489709d5fb96011329937362fd5aedec5 (patch) | |
| tree | 0affe781462975551ef9256f2e73d02888a9f5d0 | |
| parent | b2a844760ec534e75bcc2dc513275cf0fed11468 (diff) | |
extensions: libxt_TOS: Add translation to nft
Add translation for TOS to nftables. TOS is deprecated
ans DSCP is ued in place of it. The first 6 bits of
TOS specify the DSCP value.
Examples:
$ iptables-translate -t mangle -A PREROUTING -p TCP --dport 22 -j TOS --set-tos 0x10
nft add rule ip mangle PREROUTING tcp dport 22 counter ip6 dscp set 0x04
Signed-off-by: Gargi Sharma <gs051095@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | extensions/libxt_TOS.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/extensions/libxt_TOS.c b/extensions/libxt_TOS.c index cef58765..b66fa329 100644 --- a/extensions/libxt_TOS.c +++ b/extensions/libxt_TOS.c @@ -183,6 +183,30 @@ static void tos_tg_save(const void *ip, const struct xt_entry_target *target) printf(" --set-tos 0x%02x/0x%02x", info->tos_value, info->tos_mask); } +static int tos_xlate(struct xt_xlate *xl, + const struct xt_xlate_tg_params *params) +{ + const struct ipt_tos_target_info *info = + (struct ipt_tos_target_info *) params->target->data; + uint8_t dscp = info->tos >> 2; + + xt_xlate_add(xl, "ip dscp set 0x%02x", dscp); + + return 1; +} + +static int tos_xlate6(struct xt_xlate *xl, + const struct xt_xlate_tg_params *params) +{ + const struct ipt_tos_target_info *info = + (struct ipt_tos_target_info *) params->target->data; + uint8_t dscp = info->tos >> 2; + + xt_xlate_add(xl, "ip6 dscp set 0x%02x", dscp); + + return 1; +} + static struct xtables_target tos_tg_reg[] = { { .version = XTABLES_VERSION, @@ -197,6 +221,7 @@ static struct xtables_target tos_tg_reg[] = { .x6_parse = tos_tg_parse_v0, .x6_fcheck = tos_tg_check, .x6_options = tos_tg_opts_v0, + .xlate = tos_xlate, }, { .version = XTABLES_VERSION, @@ -211,6 +236,7 @@ static struct xtables_target tos_tg_reg[] = { .x6_parse = tos_tg_parse, .x6_fcheck = tos_tg_check, .x6_options = tos_tg_opts, + .xlate = tos_xlate6, }, }; |