4 Commits

Author	SHA1	Message	Date
Zhe Weng	f498102512	net: select NAT external port by tcp_selectport for TCP ... Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>	2022-11-11 14:36:55 +08:00
Zhe Weng	8239ddeef4	net/nat: Add TCP entry expiration logic ... Add TCP entry expiration logic for NAT, with entries changed from sq to dq for fast removal. Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>	2022-11-11 14:36:55 +08:00
Zhe Weng	0a4e01d712	net: verify NAT port usage in tcp_selectport ... Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>	2022-11-11 14:36:55 +08:00
Zhe Weng	b595430578	net: add basic NAT workflow ... Add basic functions for NAT (NAPT), remaining some logic unimplemented (UDP, ICMP, port assignment, etc). NAT for TCP can work now (unless port conflicts). Outbound: LAN -> Forward -> NAT(only if targeting at WAN) -> WAN Inbound: WAN -> NAT(only from WAN, change dest) -> Forward -> LAN Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>	2022-11-11 14:36:55 +08:00