Date: Thu, 26 Jun 2014 21:17:59 +0900 From: Hajimu UMEMOTO <ume@FreeBSD.org> To: "Alexander V. Chernikov" <melifaro@FreeBSD.org> Cc: svn-src-stable@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, svn-src-stable-10@freebsd.org Subject: Re: svn commit: r267874 - stable/10/lib/libc/net Message-ID: <yge7g43n9u0.wl%ume@mahoroba.org> In-Reply-To: <53AB0E0C.3050802@FreeBSD.org> References: <201406251710.s5PHAQ31026354@svn.freebsd.org> <53AB0E0C.3050802@FreeBSD.org>
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Hi, >>>>> On Wed, 25 Jun 2014 21:59:40 +0400 >>>>> "Alexander V. Chernikov" <melifaro@FreeBSD.org> said: melifaro> Well, two socket() calls has some predictable cost, but getaddrinfo() melifaro> can be quite slow for system with many interfaces. It would be better to melifaro> introduce some kernel sysctls to report IPv4/IPv6 status... Yes, it should be better having some sysctls as you say. melifaro> It looks like style(9) needs to be altered, too.. melifaro> This is not correct. RFC 3493 talks about "loopback address" (and melifaro> specifies explicit IN6_IS_ADDR_LOOPBACK macro to test in IPv6 case) and melifaro> not about loopback interface. Yes, but the spec is still unclear about handling of link-local address especially on loopback interface. We have to exclude fe80::1%lo0 to make addrconfig() functional. I've committed the change: r267912. Sincerely, -- Hajimu UMEMOTO ume@mahoroba.org ume@{,jp.}FreeBSD.org http://www.mahoroba.org/~ume/
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