diff options
| author | Jan Engelhardt <jengelh@inai.de> | 2013-01-24 09:37:55 +0000 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-01-28 12:32:03 +0100 |
| commit | 2fda8fcef0f3c321fb03953b8ecc424a2bad4476 (patch) | |
| tree | 1df63a3ed72be55e0ce821a41b8f711f3091da12 /extensions/libip6t_SNPT.c | |
| parent | ff338552d318b49e07662fd7648fdb11e3c42bc9 (diff) | |
extensions: S/DNPT: add missing save function
Jean-Michel DILLY reports that `ip6tables -S` exits with
Target `DNPT' is missing save function
when a DNPT rule is invoked. Fix this omission.
References: http://marc.info/?l=netfilter&m=135904831220440&w=2
Signed-off-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'extensions/libip6t_SNPT.c')
| -rw-r--r-- | extensions/libip6t_SNPT.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/extensions/libip6t_SNPT.c b/extensions/libip6t_SNPT.c index 26a86c56..7ed80b20 100644 --- a/extensions/libip6t_SNPT.c +++ b/extensions/libip6t_SNPT.c @@ -1,4 +1,5 @@ #include <stdio.h> +#include <string.h> #include <xtables.h> #include <linux/netfilter_ipv6/ip6_tables.h> #include <linux/netfilter_ipv6/ip6t_NPT.h> @@ -53,6 +54,23 @@ static void SNPT_print(const void *ip, const struct xt_entry_target *target, npt->dst_pfx_len); } +static void SNPT_save(const void *ip, const struct xt_entry_target *target) +{ + static const struct in6_addr zero_addr; + const struct ip6t_npt_tginfo *info = (const void *)target->data; + + if (memcmp(&info->src_pfx.in6, &zero_addr, sizeof(zero_addr)) != 0 || + info->src_pfx_len != 0) + printf("--src-pfx %s/%u ", + xtables_ip6addr_to_numeric(&info->src_pfx.in6), + info->src_pfx_len); + if (memcmp(&info->dst_pfx.in6, &zero_addr, sizeof(zero_addr)) != 0 || + info->dst_pfx_len != 0) + printf("--dst-pfx %s/%u ", + xtables_ip6addr_to_numeric(&info->dst_pfx.in6), + info->dst_pfx_len); +} + static struct xtables_target snpt_tg_reg = { .name = "SNPT", .version = XTABLES_VERSION, @@ -62,6 +80,7 @@ static struct xtables_target snpt_tg_reg = { .help = SNPT_help, .x6_parse = SNPT_parse, .print = SNPT_print, + .save = SNPT_save, .x6_options = SNPT_options, }; |