diff options
author | Shivani Bhardwaj <shivanib134@gmail.com> | 2015-12-22 18:06:17 +0530 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-02-16 19:30:22 +0100 |
commit | 509619a03a1757073c6ec9af6164fd6c46f8599c (patch) | |
tree | b14d06ccad81792e1841d9694d04f55289867732 /extensions/libxt_mac.c | |
parent | b9cd6f55374461163c6216e8d892e88102200908 (diff) |
extensions: libxt_mac: Add translation to nft
Add translation for module mac to nftables.
Examples:
$ sudo iptables-translate -A INPUT -m mac --mac-source 0a:12:3e:4f:b2:c6 -j DROP
nft add rule ip filter INPUT ether saddr 0A:12:3E:4F:B2:C6 counter drop
$ sudo iptables-translate -A INPUT -p tcp --dport 80 -m mac --mac-source 0a:12:3e:4f:b2:c6 -j ACCEPT
nft add rule ip filter INPUT tcp dport 80 ether saddr 0A:12:3E:4F:B2:C6 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'extensions/libxt_mac.c')
-rw-r--r-- | extensions/libxt_mac.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/extensions/libxt_mac.c b/extensions/libxt_mac.c index f171d153..d7303440 100644 --- a/extensions/libxt_mac.c +++ b/extensions/libxt_mac.c @@ -50,11 +50,12 @@ static void mac_print(const void *ip, const struct xt_entry_match *match, int numeric) { const struct xt_mac_info *info = (void *)match->data; + printf(" MAC"); if (info->invert) printf(" !"); - + print_mac(info->srcaddr); } @@ -69,9 +70,31 @@ static void mac_save(const void *ip, const struct xt_entry_match *match) print_mac(info->srcaddr); } +static void print_mac_xlate(const unsigned char *macaddress, + struct xt_buf *buf) +{ + unsigned int i; + + xt_buf_add(buf, "%02x", macaddress[0]); + for (i = 1; i < ETH_ALEN; ++i) + xt_buf_add(buf, ":%02x", macaddress[i]); + xt_buf_add(buf, " "); +} + +static int mac_xlate(const struct xt_entry_match *match, + struct xt_buf *buf, int numeric) +{ + const struct xt_mac_info *info = (void *)match->data; + + xt_buf_add(buf, "ether saddr%s ", info->invert ? " !=" : ""); + print_mac_xlate(info->srcaddr, buf); + + return 1; +} + static struct xtables_match mac_match = { .family = NFPROTO_UNSPEC, - .name = "mac", + .name = "mac", .version = XTABLES_VERSION, .size = XT_ALIGN(sizeof(struct xt_mac_info)), .userspacesize = XT_ALIGN(sizeof(struct xt_mac_info)), @@ -80,6 +103,7 @@ static struct xtables_match mac_match = { .print = mac_print, .save = mac_save, .x6_options = mac_opts, + .xlate = mac_xlate, }; void _init(void) |