extensions/libip6t_SECMARK.man - fp2-dev/platform/external/iptables - Gitiles

 This is used to set the security mark value associated with the
 packet for use by security subsystems such as SELinux.  It is only
 valid in the
 .B mangle
 table.
 .TP
 .BI "--selctx " "security_context"
	This is used to set the security mark value associated with the
	packet for use by security subsystems such as SELinux. It is only
	valid in the
	.B mangle
	table.
	.TP
	.BI "--selctx " "security_context"