From: @xychow
Reviewed-by: @zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @hwhewei
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @david-he91
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @looop5
Reviewed-by: @anyrenwei,@dylangeng
Signed-off-by: @anyrenwei

From: @luoyang42
Reviewed-by: @heleiwang,@liucunwei
Signed-off-by: @liucunwei

From: @xutianchun
Reviewed-by: @hangangqiang,@HilbertDavid
Signed-off-by: @HilbertDavid

From: @wangzhe128
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @hangangqiang

From: @huangbingjian
Reviewed-by: @zh_qh,@zhunaipan
Signed-off-by: @zh_qh

From: @changzherui
Reviewed-by: @kingxian,@zhoufeng54,@kingxian
Signed-off-by: @kingxian,@kingxian

From: @yangjie159
Reviewed-by: @wangchengyuan
Signed-off-by:

From: @xcnick
Reviewed-by: 
Signed-off-by:

From: @zhang_yi2020
Reviewed-by: @gemini524,@wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian,@liangchenghui

MS_RDR_ENABLE should be in {0, 1}. if it is set as other value, it will
be 0 and WARNING information will be printed to tell user.
The settings in config file set by the user takes precedence over the
environment variables. If 'rdr_enable' is 0 in environment variable,
and then 'enable' is true in config file, the RDR will turned on.

From: @zhaozhenlong
Reviewed-by: 
Signed-off-by:

From: @zoloft
Reviewed-by: @wangchengyuan
Signed-off-by: @wangchengyuan

From: @lianliguang
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @changzherui
Reviewed-by: @zhoufeng54,@kingxian
Signed-off-by: @kingxian

From: @huaweib
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

From: @wilfchen
Reviewed-by: @limingqi107,@cristoval
Signed-off-by: @cristoval

From: @sishuikang
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @hangangqiang

From: @lijiaqi0612
Reviewed-by: @zh_qh,@kisnwang
Signed-off-by: @kisnwang

From: @yangruoqi713
Reviewed-by: @zhang_xue_tong,@hangangqiang
Signed-off-by: @zhang_xue_tong

From: @tiancixiao
Reviewed-by: @heleiwang,@liucunwei
Signed-off-by: @liucunwei

From: @luopengting
Reviewed-by: @ouwenchang,@lixiaohui33
Signed-off-by: @lixiaohui33

From: @fuzhiye
Reviewed-by: @zhang_xue_tong,@zhanghaibo5
Signed-off-by: @zhang_xue_tong