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Message-ID: <CFFEC50E.38308%dbanerje@akamai.com> Date: Wed, 30 Jul 2014 15:58:38 -0400 From: "Banerjee, Debabrata" <dbanerje@...mai.com> To: Julian Anastasov <ja@....bg>, Sergei Shtylyov <sergei.shtylyov@...entembedded.com> CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "David S . Miller" <davem@...emloft.net>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] tcp: don't require root to read tcp_metrics Hi, On 7/30/14, 3:33 PM, "Julian Anastasov" <ja@....bg> wrote: >On Wed, 30 Jul 2014, Debabrata Banerjee wrote: > >> commit d23ff701643a4a725e2c7a8ba2d567d39daa29ea introduced netlink >>support for >> the new tcp_metrics, however it restricted getting of tcp_metrics to >>root user >> only. This is a change from how these values could have been fetched >>when in >> the old route cache. Unless there's a legitimate reason to restrict the >>reading >> of these values it would be better if normal users could fetch them. > > Not sure how fatal is to show TCP fastopen cookies to >any user. Otherwise, I don't remember for other restrictions. TFO cookie as reported is sent in the clear in the tcp header. It is not the secret/key used to generate the cookie, so this should be fine. -Debabrata -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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