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

From: @gzhcv
Reviewed-by: @yelihua
Signed-off-by:

From: @zyx5256
Reviewed-by: @wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

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

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

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

From: @yuchaojie
Reviewed-by: @oacjiewen,@c_34
Signed-off-by: @c_34

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

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

From: @TFbunny
Reviewed-by: @robingrosman,@liangchenghui
Signed-off-by: @liangchenghui

From: @probiotics_53
Reviewed-by: @hangangqiang,@zhang_xue_tong
Signed-off-by: @hangangqiang

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

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

From: @looop5
Reviewed-by: @xsmq,@zh_qh
Signed-off-by: @zh_qh

From: @liubuyu
Reviewed-by: @zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

From: @bingyaweng
Reviewed-by: @wang_zi_dong,@zichun_ye
Signed-off-by: @ljl0711

From: @huangbo77
Reviewed-by: 
Signed-off-by:

From: @c_34
Reviewed-by: @wuxuejian,@linqingke
Signed-off-by: @linqingke

From: @joylvliang
Reviewed-by: @chujinjin,@kisnwang
Signed-off-by: @chujinjin

From: @neoming
Reviewed-by: @oacjiewen
Signed-off-by:

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.