enable hairpin mode on virtual interface bridge port
enable hairpin mode on virtual interface bridge port

This is to support being able to DNAT/MASQ traffic from a container back into itself (dotcloud/docker#4442)

Docker-DCO-1.1-Signed-off-by: Patrick Hemmer <patrick.hemmer@gmail.com> (github: phemmer)

estesp/runc,fabiokung/runc,markllama/runc,mapk0y/runc,axsh/runc,inatatsu/runc,InformatiQ/runc,laijs/runc,ddnbgroup/runc,Microsoft/libcontainer,mrunalp/runc,inatatsu/runc,wking/runc,vbatts/runc,dqminh/libcontainer,zenlinTechnofreak/runc,WeiZhang555/runc,docker/libcontainer,subuser-security/runc,liuwharton/runc,ycaihua/runc,ChengTiesheng/runc,dqminh/runc,han-wang/runc,wangkirin/runc,sunyuan3/runc,LTD-Beget/libcontainer,rootfs/runc,meihuabo/runc,carlye566/runc,dqminh/libcontainer,estesp/runc,ekuric/runc,Mashimiao/libcontainer,zhangyancoder/libcontainer,nkwilson/runc,jwuwork/runc,boucher/runc,shishir-a412ed/runc,shishir-a412ed/runc,ZJU-SEL/runc,ChengTiesheng/runc,ycaihua/libcontainer,meihuabo/runc,boucher/runc,jhjeong-kr/runc,SaiedKazemi/libcontainer-criu,BrickXu/libcontainer,albertoleal/runc,nkwilson/runc,LTD-Beget/libcontainer,whosthatknocking/runc,docker/libcontainer,zenlinTechnofreak/runc,crosbymichael/libcontainer,ZJU-SEL/runc,HuKeping/runc,rajasec/runc,mrunalp/runc,hqhq/runc,lizf-os/runc,crosbymichael/libcontainer,YujiOshima/runc,xiaochenshen/runc,runcom/runc,rhatdan/runc,whosthatknocking/runc,xiaochenshen/runc,hxfeng/runc,jhjeong-kr/runc,crosbymichael/libcontainer,avagin/runc,shenxiaochen/libcontainer,willmtemple/runc,ZJU-SEL/runc,lizf-os/runc,booyaa/runc,rajasec/runc,subuser-security/runc,HardikDR/runc,ChengTiesheng/runc,runcom/libcontainer,keloyang/runc,maxamillion/runc,aidanhs/runc,w4ngyi/libcontainer,laijs/runc,cloudfoundry-incubator/runc,boucher/libcontainer,WeiZhang555/runc,ycaihua/libcontainer,zhangyancoder/libcontainer,willmtemple/runc,abduld/runc,coolljt0725/runc,avagin/runc,hxfeng/runc,cyphar/runc,fabiokung/runc,calavera/runc,stefanberger/runc,hqhq/runc,cyphar/runc,wcwxyz/runc,han-wang/runc,w4ngyi/libcontainer,hqhq/libcontainer,ekuric/runc,jhowardmsft/runc,mheon/libcontainer,ZJU-SEL/libcontainer,coolljt0725/runc,gitido/runc,rhatdan/libcontainer,balajibr/runc,ddnbgroup/runc,han-wang/runc,dqminh/runc,YujiOshima/runc,maxamillion/runc,ycaihua/runc,ycaihua/libcontainer,opencontainers/runc,intfrr/runc,LK4D4/runc,clnperez/runc,mheon/runc,jwuwork/runc,Mashimiao/libcontainer,axsh/runc,liuwharton/runc,cxxly/runc,thaJeztah/libcontainer,axsh/runc,albertoleal/runc,adrianreber/runc,gwoo/runc,justincormack/runc,shenxiaochen/libcontainer,chenchun/runc,docker/runc,BrickXu/libcontainer,hqhq/runc,whosthatknocking/runc,balajibr/runc,haijunTan/runc,fabiokung/runc,dqminh/libcontainer,crosbymichael/runc,runcom/runc,mheon/libcontainer,carlye566/runc,zhangyancoder/libcontainer,coolljt0725/runc,runcom/libcontainer,keloyang/runc,rsampaio/runc,docker/runc,marcosnils/runc,tangkun75/libcontainer,sallyom/runc,liuwharton/runc,rhatdan/libcontainer,kimh/runc,willmtemple/runc,avagin/runc,BrickXu/libcontainer,mYmNeo/runc,stefanberger/runc,shenxiaochen/libcontainer,kolyshkin/runc,jhowardmsft/runc,rhatdan/libcontainer,sallyom/runc,SaiedKazemi/libcontainer-criu,vbatts/runc,tangkun75/libcontainer,cxxly/runc,keloyang/libcontainer,Mashimiao/libcontainer,mheon/libcontainer,crosbymichael/runc,thaJeztah/libcontainer,mYmNeo/runc,mikebrow/runc,HuKeping/runc,rajasec/runc,boucher/libcontainer,estesp/runc,albertoleal/runc,intfrr/runc,LK4D4/runc,cxxly/runc,docker/runc,dieface/runc,estesp/libcontainer,stefanberger/runc,opencontainers/runc,gitido/runc,chenchun/runc,kimh/runc,runcom/runc,booyaa/runc,estesp/libcontainer,whuwxl/libcontainer,wangkirin/runc,sunyuan3/runc,HardikDR/runc,rhatdan/runc,balajibr/runc,xiaochenshen/runc,markllama/runc,vbatts/runc,kimh/runc,rhatdan/runc,markllama/runc,adrianreber/runc,wcwxyz/runc,jhowardmsft/runc,wangkirin/runc,kolyshkin/runc,intfrr/runc,dqminh/runc,mrunalp/runc,laijs/runc,haijunTan/runc,jhjeong-kr/runc,rsampaio/runc,hqhq/libcontainer,YujiOshima/runc,zenlinTechnofreak/runc,mapk0y/runc,Microsoft/libcontainer,chenchun/runc,haijunTan/runc,boucher/libcontainer,carlye566/runc,sunyuan3/runc,w4ngyi/libcontainer,kolyshkin/runc,SaiedKazemi/libcontainer-criu,HuKeping/runc,docker/libcontainer,gitido/runc,wcwxyz/runc,WeiZhang555/runc,keloyang/libcontainer,maxamillion/runc,crosbymichael/runc,keloyang/libcontainer,talwai/runc,keloyang/runc,inatatsu/runc,dieface/runc,calavera/runc,dqminh/runc,rootfs/runc,marcosnils/runc,whuwxl/libcontainer,jwuwork/runc,booyaa/runc,wking/runc,mheon/runc,justincormack/runc,opencontainers/runc,nkwilson/runc,ycaihua/runc,meihuabo/runc,subuser-security/runc,InformatiQ/runc,rsampaio/runc,opencontainers/runc,keloyang/libcontainer,mheon/runc,cloudfoundry-incubator/runc,ZJU-SEL/libcontainer,ddnbgroup/runc,tangkun75/libcontainer,shishir-a412ed/runc,cyphar/runc,ZJU-SEL/libcontainer,Microsoft/libcontainer,InformatiQ/runc,whuwxl/libcontainer,mikebrow/runc,LTD-Beget/libcontainer,mapk0y/runc,talwai/runc,mikebrow/runc,abduld/runc,kolyshkin/runc,HardikDR/runc,runcom/libcontainer,boucher/runc,thaJeztah/libcontainer,justincormack/runc,navidshaikh/runc,talwai/runc,aidanhs/runc,rhatdan/runc,navidshaikh/runc,LK4D4/runc,calavera/runc,estesp/libcontainer,adrianreber/runc,wking/runc,dieface/runc,mYmNeo/runc,clnperez/runc,hqhq/libcontainer,clnperez/runc,marcosnils/runc,ekuric/runc,lizf-os/runc,sallyom/runc,aidanhs/runc,rootfs/runc,hxfeng/runc,navidshaikh/runc,cloudfoundry-incubator/runc,abduld/runc