diff options
| -rw-r--r-- | extensions/libxt_TCPMSS.txlate | 4 | ||||
| -rw-r--r-- | extensions/libxt_tcp.c | 10 | ||||
| -rw-r--r-- | extensions/libxt_tcp.txlate | 6 |
3 files changed, 10 insertions, 10 deletions
diff --git a/extensions/libxt_TCPMSS.txlate b/extensions/libxt_TCPMSS.txlate index 6a64d2ce..3dbbad66 100644 --- a/extensions/libxt_TCPMSS.txlate +++ b/extensions/libxt_TCPMSS.txlate @@ -1,5 +1,5 @@ iptables-translate -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -nft add rule ip filter FORWARD tcp flags & (syn|rst) == syn counter tcp option maxseg size set rt mtu +nft add rule ip filter FORWARD tcp flags syn / syn,rst counter tcp option maxseg size set rt mtu iptables-translate -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 90 -nft add rule ip filter FORWARD tcp flags & (syn|rst) == syn counter tcp option maxseg size set 90 +nft add rule ip filter FORWARD tcp flags syn / syn,rst counter tcp option maxseg size set 90 diff --git a/extensions/libxt_tcp.c b/extensions/libxt_tcp.c index 383e4db5..0b115cdd 100644 --- a/extensions/libxt_tcp.c +++ b/extensions/libxt_tcp.c @@ -381,7 +381,7 @@ static void print_tcp_xlate(struct xt_xlate *xl, uint8_t flags) for (i = 0; (flags & tcp_flag_names_xlate[i].flag) == 0; i++); if (have_flag) - xt_xlate_add(xl, "|"); + xt_xlate_add(xl, ","); xt_xlate_add(xl, "%s", tcp_flag_names_xlate[i].name); have_flag = 1; @@ -435,11 +435,11 @@ static int tcp_xlate(struct xt_xlate *xl, return 0; if (tcpinfo->flg_mask || (tcpinfo->invflags & XT_TCP_INV_FLAGS)) { - xt_xlate_add(xl, "%stcp flags & (", space); - print_tcp_xlate(xl, tcpinfo->flg_mask); - xt_xlate_add(xl, ") %s ", - tcpinfo->invflags & XT_TCP_INV_FLAGS ? "!=": "=="); + xt_xlate_add(xl, "%stcp flags %s", space, + tcpinfo->invflags & XT_TCP_INV_FLAGS ? "!= ": ""); print_tcp_xlate(xl, tcpinfo->flg_cmp); + xt_xlate_add(xl, " / "); + print_tcp_xlate(xl, tcpinfo->flg_mask); } return 1; diff --git a/extensions/libxt_tcp.txlate b/extensions/libxt_tcp.txlate index bba63324..921d4af0 100644 --- a/extensions/libxt_tcp.txlate +++ b/extensions/libxt_tcp.txlate @@ -11,13 +11,13 @@ iptables-translate -I OUTPUT -p tcp --dport 1020:1023 --sport 53 -j ACCEPT nft insert rule ip filter OUTPUT tcp sport 53 tcp dport 1020-1023 counter accept iptables -A INPUT -p tcp --tcp-flags ACK,FIN FIN -j DROP -nft add rule ip filter INPUT tcp flags & fin|ack == fin counter drop +nft add rule ip filter INPUT tcp flags fin / fin,ack counter drop iptables-translate -A INPUT -p tcp --syn -j ACCEPT -nft add rule ip filter INPUT tcp flags & (fin|syn|rst|ack) == syn counter accept +nft add rule ip filter INPUT tcp flags syn / fin,syn,rst,ack counter accept iptables-translate -A INPUT -p tcp --syn --dport 80 -j ACCEPT -nft add rule ip filter INPUT tcp dport 80 tcp flags & (fin|syn|rst|ack) == syn counter accept +nft add rule ip filter INPUT tcp dport 80 tcp flags syn / fin,syn,rst,ack counter accept iptables-translate -A INPUT -f -p tcp nft add rule ip filter INPUT ip frag-off & 0x1fff != 0 ip protocol tcp counter |